"uuid","repository link","title","author","contributor","publication year","abstract","subject topic","language","publication type","publisher","isbn","issn","patent","patent status","bibliographic note","access restriction","embargo date","faculty","department","research group","programme","project","coordinates"
"uuid:c3f5e791-2eb5-426a-8067-a1e3b488bd0a","http://resolver.tudelft.nl/uuid:c3f5e791-2eb5-426a-8067-a1e3b488bd0a","Theory of Chirality Induced Spin Selectivity in Two Terminal Transport","Huisman, K.H. (TU Delft QN/Thijssen Group)","Thijssen, J.M. (promotor); van der Zant, H.S.J. (copromotor); Delft University of Technology (degree granting institution)","2023","In this thesis we perform a theoretical study on the Chirality Induced Spin Selectivity effect in the context of two-terminal measurements for realistic parameters. In twoterminal measurements on chiral molecules one of the leads is magnetized and the current is measured for opposite magnetizations. In experiment it is found that the currents for opposite magnetizations are different for finite bias voltage. We call this finite difference a magnetocurrent. The magnetocurrent is odd in bias voltage and the size of the effect of the order of a few percent. Our aim is to explain this effect through modeling junctions with interactions and the spin-orbit where we always use choose realistic parameters.","Magneto-transport; Onsager reciprocity; Büttiker reciprocity; Voltage probes; Coulomb interactions; Mean-field theory; (non-)collinear Hubbard one approximation; Vibrational modes; Spin-orbit coupling; Stray fields; Chirality Induced Spin Selectivity","en","doctoral thesis","","978-90-8593-579-7","","","","","","","","","QN/Thijssen Group","","",""
"uuid:a3934dd7-2803-4c8a-b7f2-c3537abb8126","http://resolver.tudelft.nl/uuid:a3934dd7-2803-4c8a-b7f2-c3537abb8126","Change lost: Corrosion of Roman copper alloy coins in changing and variable burial environments","Huisman, Luc Hans (Cultural Heritage Agency of the Netherlands; Rijksuniversiteit Groningen); Ackermann, Regula (Kantonsarchaologie); Claes, Liesbeth (Universiteit Leiden); van Eijck, L. (TU Delft RST/Neutron and Positron Methods in Materials); de Groot, Tessa (Cultural Heritage Agency of the Netherlands); Joosten, Ineke (Cultural Heritage Agency of the Netherlands); Kemmers, Fleur (Goethe University); Kerkhoven, Nils (Erfgoed Utrecht); Ngan-Tillard, D.J.M. (TU Delft Geo-engineering)","","2023","We studied the corrosion of Roman copper alloy coins that experienced alternations or progressive changes in their burial environment. We used coins that were still embedded in soil or in a concretion selectedfrom three professional excataved sites - Berlicum and Krommenie in the Netherlands and Kempraten in Switserland. mCT scanning and neutron scanning were used to record the 3-D properties of these coins prior to (destructive) analyses. It proved possible to tentatively identify the coins. Microscope observations and SEM-EDX analyses revealed complex corrosion processes, related to changing burial environments. In soil horizon with fluctuating groundwater levels in a region with upwelling reducing, iron-rich groundwater, the copper in a gunmetal coin is essentially replaced by iron oxides while tin remains and forms tin-oxide bands. Fluctuating redox conditions in marine-influenced environments was shown to transform a copper-alloy coin into strongly laminated copper sulphides with embedded gypsum crystals, with an outer surface of copper and copper-iron sulphides. Burial of bronze in a charcoal rich layer probably caused temporary highly alkaline soil conditions. This caused most of the copper to leach from this coin, leaving behind a laminated tin-dominated mass, with only a limited amount of (malachite) corrosion products remaining in the surrounding groundmass. In all three cases, corrosion processes tend to be anisotropic, probably because of cold-hammering of the coins during their manufacture. Such corrosion processes on massive copper alloy coins may produce features that may lead to their incorrect classification as subferrati, i.e. copper alloy coins with an iron core. Our results may help in future to distinguish strongly corroded massive coins from subferrati.","Coin; Corrosion; Gley; Sulphides; Tomography","en","journal article","","","","","","","","","","","RST/Neutron and Positron Methods in Materials","","",""
"uuid:d2dab5ed-c4f7-4db9-b610-a5809985313a","http://resolver.tudelft.nl/uuid:d2dab5ed-c4f7-4db9-b610-a5809985313a","Extracting Railway Passenger Demand Patterns from Origin-Destination Data for Developing Demand-Oriented Service Plans","van der Knaap, R.J.H. (TU Delft Transport and Planning); de Bruyn, Menno (N.V. Nederlandse Spoorwegen); van Oort, N. (TU Delft Transport and Planning); Huisman, Dennis (Erasmus Universiteit Rotterdam; N.V. Nederlandse Spoorwegen); Goverde, R.M.P. (TU Delft Transport and Planning)","","2023","Train passenger demand fluctuates throughout the day and week and these fluctuations are expected to increase due to the COVID-19 pandemic. In order to let train services, such as the line plan and timetable, match this fluctuating demand, insights are needed into how the demand is changing and for which periods the demand is relatively stable. Hierarchical clustering on origin-destination (OD) data is used to determine for each workday continuous time-of-day periods in which the passenger demand is homogeneous. The periods found for each workday are subsequently used as input in a clustering algorithm to look for similarities and differences between workdays. Both normalized and regular OD matrices are tested as input for the method. In normalized OD matrices, only the structure of the demand is captured, while in the regular OD matrices both the structure and the volume of the demand are included. The methods for finding homogeneous periods in demand during the day and week are applied to a case study covering a large part of the railway network in the Netherlands. We find large differences between the periods based on regular OD matrices and those based on normalized OD matrices. The periods based on regular OD matrices seem more appropriate to use as input for designing a service plan. Comparison of the periods over the week shows that mainly the peak periods on Friday are far away from Monday to Thursday, and hence could benefit from an altered service plan.","Railway passenger demand patterns; Origin-destination data; Clustering; Homogeneous periods","en","abstract","","","","","","Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.","","2023-10-28","","","Transport and Planning","","",""
"uuid:6a5dd64d-933f-45aa-9fa7-ec4cb81a2eb6","http://resolver.tudelft.nl/uuid:6a5dd64d-933f-45aa-9fa7-ec4cb81a2eb6","Exploring shape memory alloys in haptic wearables for visually impaired people","Ghodrat, S. (TU Delft Emerging Materials); Sandhir, P. (TU Delft Methodologie en Organisatie van Design); Huisman, G. (TU Delft Human Information Communication Design)","","2023","Wearable haptic assistive devices can provide tactile information to visually impaired people (VIP) to support independent living. However, electromechanical haptic feedback has a number of disadvantages, including hardware being relatively heavy, large, and producing excessive sound. Here, we present a design-driven investigation of the potential of shape memory alloy-based haptic feedback for VIP. We followed an iterative approach, focusing on hands-on material explorations, in which we identified challenges and subsequent solutions that designers of SMA-based wearable haptic assistive devices may be faced with when incorporating SMAs in their designs. We present several prototype iterations and an initial evaluation with VIP to offer insights into the potential of SMA-based wearable haptic devices for VIP.","shape memory alloy; haptics; wearables; visually impaired people; assistive device; research through design; material-driven design","en","journal article","","","","","","","","","","","Emerging Materials","","",""
"uuid:2e7b87f2-b8ae-4078-9023-70f076915c10","http://resolver.tudelft.nl/uuid:2e7b87f2-b8ae-4078-9023-70f076915c10","Exploring Extended Mind-Wandering Through an Interactive Haptic Fidget Object","Eichenlaub, J.A. (TU Delft Design Aesthetics); Huisman, G. (TU Delft Human Information Communication Design); Xue, H. (TU Delft Design Aesthetics)","","2023","Mind-wandering (MW) and fidgeting are both present as pervasive phenomena in everyday life and can positively impact ideation. Importantly, within the MW experience, MW can manifest in bodily behaviors such as physical fidgeting. Here, we use an extended mind framework to consider fidgeting as a case of extended MW, where (part of) a MW episode is mediated by a fidget object. We position extended MW, fidgeting, and cognition as interrelated processes. We present the design of an interactive haptic fidget object that aims to support introspective self-awareness in MW and aid in idea synthesis. We discuss the results of an exploratory user evaluation in which the fidget object was used by designers during a personally relevant work session combining research, synthesis, and creativity. We close this paper by discussing the initial findings of our research, the implications for extended MW, and additional propositions for future research directions.","mind-wandering; fdgeting; extended mind; haptics; creativity; tan- gible interaction","en","conference paper","Association for Computing Machinery (ACM)","","","","","Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.","","2024-01-10","","","Design Aesthetics","","",""
"uuid:aeab7ba5-0b93-41a7-9c6e-a8118bf5946f","http://resolver.tudelft.nl/uuid:aeab7ba5-0b93-41a7-9c6e-a8118bf5946f","Food in motion: Lively display of freshness or last spasms of living beings?","Schifferstein, Hendrik N.J. (TU Delft Design Aesthetics); Lemke, M. (TU Delft Design Aesthetics); Huisman, G. (TU Delft Human Information Communication Design)","","2023","The movement of food may suggest the food is very fresh but may also indicate the source of food is still alive. In this study, we explore the responses that different kinds of food movements can evoke among consumers. In an online study, we presented participants with 14 videos in which a food product changed shape or moved, before or while being eaten. They rated their emotional responses to the food (disgust, fear, fascination), their tendency to empathize with the beings in the video, characteristics of the movements, and how they experienced the food. Most foods that moved in the videos elicited more disgust than expected for those food items. Many product aspects that elicited disgust also evoked empathy, while fascination showed opposite patterns. Products elicited empathy and disgust when they seemed to be alive and potentially harmful, and their movements were twitchy. Participants empathized mainly with larger animals, while disgust was particularly high for smaller animals like maggots in cheese and crawling coconut worms. People became fascinated with foods they found safe, nutritious, and that looked attractive, while the food movements were subtle and looked natural with the food. These results showed that the movements of foods that appeared to be alive were different from what was considered natural for the food, and so they also evoked different emotional responses.","Movement; Aliveness; Liveliness; Insect foods; Fascination; Empathy; Fear; Disgust","en","journal article","","","","","","","","","","","Design Aesthetics","","",""
"uuid:992b640e-f19a-4113-a99b-1dd97432bf0a","http://resolver.tudelft.nl/uuid:992b640e-f19a-4113-a99b-1dd97432bf0a","Improved quantitative evaluation of the fouling potential in spacer-filled membrane filtration channels through a biofouling index based on the relative pressure drop","Huisman, Kees Theo (King Abdullah University of Science and Technology); Franco-Clavijo, Natalia (King Abdullah University of Science and Technology); Vrouwenvelder, J.S. (TU Delft BT/Environmental Biotechnology; King Abdullah University of Science and Technology); Blankert, Bastiaan (King Abdullah University of Science and Technology)","","2023","In this study, a biofouling index based on the relative pressure drop is presented to quantitatively evaluate the amount of fouling in spacer-filled membrane filtration channels. The biofouling index was defined as the inverse of the time to reach a relative pressure drop of 100% and can be interpreted as a fouling rate or cleaning frequency. The index was applied to evaluate biofilm growth in membrane fouling simulators with reverse osmosis membranes and commercial feed spacers operated with different feed water nutrient concentrations and crossflow velocities. Biofilm accumulation on the membrane and feed spacer was characterized in situ using optical coherence tomography. We showed that the biofouling index is directly related to the volume of biofouling independent of the applied crossflow velocity and a suitable tool for improved quantitative comparison of the biofouling rate. Furthermore our results suggest that the pressure drop is better described as function of the velocity at the perimeter of a spacer cell instead of the average velocity in the channel. Although the biofouling index is developed for biofouling, the index may be applied to quantitatively assess mitigation strategies in spacer filled channels for a wider range of fouling types.","Biofouling; Operational performance; Optical coherence tomography; Reverse osmosis; Seawater desalination","en","journal article","","","","","","Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.","","2023-07-18","","","BT/Environmental Biotechnology","","",""
"uuid:aedfe66a-9c18-4ec1-a0ba-393ee12822b9","http://resolver.tudelft.nl/uuid:aedfe66a-9c18-4ec1-a0ba-393ee12822b9","Shape memory alloy actuators for haptic wearables: A review","Liu, Q. (TU Delft Emerging Materials); Ghodrat, S. (TU Delft Emerging Materials); Huisman, G. (TU Delft Human Information Communication Design); Jansen, K.M.B. (TU Delft Emerging Materials)","","2023","Devices delivering sophisticated and natural haptic feedback often encompass numerous mechanical elements, leading to increased sizes and wearability challenges. Shape memory alloys (SMAs) are lightweight, compact, and have high power-to-weight ratios, and thus can easily be embedded without affecting the overall device shapes. Here, a review of SMA-based haptic wearables is provided. The article starts with an introduction of SMAs, while incorporating analyses of relevant devices documented in the literature. Haptic and SMA materials fields are correlated, with haptic perception insights aiding SMA actuator design, and distinct SMA mechanisms offering diverse haptic feedback types. A design process for SMA haptic wearables is proposed based on material-centered approach. We show SMAs hold potential for haptic devices aiding visually impaired people and promise in immersive technology and remote interpersonal haptic communication.","Force feedback; Interaction design; Shape memory alloy; Wearable haptic devices","en","review","","","","","","","","","","","Emerging Materials","","",""
"uuid:e5cbb140-1070-4bec-a6e0-73916c03fb8a","http://resolver.tudelft.nl/uuid:e5cbb140-1070-4bec-a6e0-73916c03fb8a","Chirality-Induced Spin Selectivity (CISS) Effect: Magnetocurrent-Voltage Characteristics with Coulomb Interactions I","Huisman, K.H. (TU Delft QN/Thijssen Group; Kavli institute of nanoscience Delft); Heinisch, Jan Brian Mi Yu (Student TU Delft; Kavli institute of nanoscience Delft); Thijssen, J.M. (TU Delft QN/Thijssen Group; Kavli institute of nanoscience Delft)","","2023","One of the manifestations of chirality-induced spin selectivity (CISS) is the appearance of a magnetocurrent. Magnetocurrent is the observation that the charge currents at finite bias in a two terminal device for opposite magnetizations of one of the leads differ. Magnetocurrents can only occur in the presence of interactions of the electrons either with vibrational modes or among themselves through the Coulomb interaction. In experiments on chiral molecules assembled in monolayers, the magnetocurrent seems to be dominantly cubic (odd) in bias voltage while theory finds a dominantly even bias voltage dependence. Thus far, theoretical work has predicted a magnetocurrent which is even bias. Here we analyze the bias voltage dependence of the magnetocurrent numerically and analytically involving the spin-orbit and Coulomb interactions (through the Hartree-Fock and Hubbard One approximations). For both approximations it is found that for strong Coulomb interactions the magnetocurrent is dominantly odd in bias voltage, confirming the symmetry observed in experiment.","","en","journal article","","","","","","","","","","","QN/Thijssen Group","","",""
"uuid:d21cfb62-fd2d-4ec4-80c1-198c32cc5496","http://resolver.tudelft.nl/uuid:d21cfb62-fd2d-4ec4-80c1-198c32cc5496","CISS effect: Magnetocurrent-voltage characteristics with Coulomb interactions. II","Huisman, K.H. (TU Delft QN/Thijssen Group; Kavli institute of nanoscience Delft); Heinisch, J.B.M.Y. (TU Delft QN/Thijssen Group; Kavli institute of nanoscience Delft); Thijssen, J.M. (TU Delft QN/Thijssen Group; Kavli institute of nanoscience Delft)","","2023","One of the manifestations of chirality-induced spin selectivity is the appearance of a magnetocurrent. Magnetocurrent is defined as the difference between the charge currents at finite bias in a two terminal device for opposite magnetizations of one of the leads. In experiments on chiral molecules assembled in monolayers the magnetocurrent is dominantly odd in bias voltage, while theory often yields an even one. From theory it is known that the spin-orbit coupling and chirality of the molecule can only generate a finite magnetocurrent in the presence of interactions, either of the electrons with vibrational modes or among themselves, through the Coulomb interaction. Here we analytically show that the magnetocurrent in bipartite-chiral structures mediated through Coulomb interactions is exactly even in the wide band limit and exactly odd for semi-infinite leads due to the bipartite lattice symmetry of the Green’s function. Our numerical results confirm these analytical findings.","","en","journal article","","","","","","","","","","","QN/Thijssen Group","","",""
"uuid:16a7b661-28da-4f00-b7d7-a8d4c0da57d9","http://resolver.tudelft.nl/uuid:16a7b661-28da-4f00-b7d7-a8d4c0da57d9","Solo Dining at Home in the Company of ICT Devices","Nicolau i Torra, N. (Student TU Delft); Lemke, M. (TU Delft Design Aesthetics); Huisman, G. (TU Delft Human Information Communication Design)","","2022","The consumption of a solo meal is often subject to negative associations. Studies indicate that solo diners use information and communication technology (ICT) devices such as smartphones, to mitigate negative experiences such as boredom and loneliness, especially when dining in a public context. However, we know less about the motivation to use such devices and consequent meal experiences in a private context. For this exploratory qualitative study, we asked participants to fill out a cultural probe kit to capture their dining experience and use of ICT devices over a period of seven days. Once completed, the content was discussed with participants during a semi-structured interview. Data was analyzed using thematic analysis in a deductive and inductive form leading to four themes: (1) The experience of eating with others; (2) The use of electronic devices while eating; (3) The meaning of food; and (4) Relaxing features and influences. Participants indicated that eating alone can be a pleasurable experience that people enjoy and perceive as relaxing. ICT devices were named to play an essential part in the dining experience. The entertainment that devices provide can mitigate feelings of loneliness and uncomfortable silence when eating by oneself. We reflect on the findings and point out potential design avenues for future studies.","solo dining; cultural probe; qualitative; eating alone; ICT; dinner; eating behavior","en","journal article","","","","","","","","","","","Design Aesthetics","","",""
"uuid:3aa65881-c0ef-423c-8ff2-d28c51f876b9","http://resolver.tudelft.nl/uuid:3aa65881-c0ef-423c-8ff2-d28c51f876b9","An Interaction Theory Account of (Mediated) Social Touch","Huisman, G. (TU Delft Human Information Communication Design)","","2022","Research on mediated social touch (MST) has, either implicitly or explicitly, built on theoretical assumptions regarding social interactions that align with “theory theory” or “simulation theory” of social cognition. However, these approaches struggle to explain MST interactions that occur outside of a laboratory setting. I briefly discuss these approaches and will argue in favor of an alternative, “interaction theory” approach to the study of MST. I make three suggestions for future research to focus on.
Numerical models are commonly used tools to assess the safety level of dunes and predict their future evolution. In addition to event timescales (storms), the decadal timescale is typically of interest from a coastal management perspective, especially when considering sea level rise. On this timescale, dune build-up through aeolian transport depends on the wind's transport capacity, and the availability of sediment of the appropriate size exposed to the wind is an important process. Sediment availability for aeolian transport is controlled by other sediment transport processes, such as dune erosion and longshore sediment transport, nourishments, and limiting factors, such as surface moisture and armour layers.
Simulation of dune evolution at the decadal timescale requires an integrated model approach that accounts for the non-linear interactions between marine and aeolian transport processes in the longshore and cross-shore direction. Reduced complexity approaches are required when these models are applied to large temporal (decades) and spatial scales (kilometres).
This study aims to predict medium to long-term dune evolution by developing a new coupled long- term beach and dune evolution model, coDaC (coupled Dunes and Coasts ). The new model combines a semi-empirical cross-shore transport model, the CS-model (Hallin et al. 2019a), with a longshore transport and coastline evolution model, Unibest CL+ (Figure 1). The coupled model is applied to simulate 22 years of morphological dune evolution along an 8 km-long coastal stretch at the Kennemer Dunes in the Netherlands.","Marine; Coastal","en","conference paper","Vlaams Instituut voor de Zee","","","","","","","","","","Coastal Engineering","","",""
"uuid:e3c3352f-f30c-4ebd-aa73-8b3be2b86167","http://resolver.tudelft.nl/uuid:e3c3352f-f30c-4ebd-aa73-8b3be2b86167","Modelling of annual sand transports at the Dutch lower shoreface","Grasmeijer, Bart (Deltares; Universiteit Utrecht); Huisman, Bas (Deltares); Luijendijk, Arjen (TU Delft Coastal Engineering; Deltares); Schrijvershof, Reinier (Deltares; Wageningen University & Research); van der Werf, Jebbe (Deltares; University of Twente); Zijl, Firmijn (Deltares); de Looff, Harry (Ministry of Infrastructure and the Environment); de Vries, Wout (Ministry of Infrastructure and the Environment)","","2022","Dutch coastal policy aims for a safe, economically strong and attractive coast. This is achieved by maintaining the part of the coast that support these functions; the coastal foundation. The coastal foundation is maintained by means of sand nourishments. Up to now, it has been assumed that net transports across the coastal foundation's offshore boundary at the 20 m depth contour are negligibly small. In the framework of the Coastal Genesis 2.0 program we investigated sand transports across this boundary and across other depth contours at the lower shoreface. This paper presents a computationally efficient approach to compute the annual sand transport rates at the Dutch lower shoreface. It is based on the 3D Dutch Continental Shelf Model with Flexible Mesh (3D DCSM-FM), a wave transformation tool and a 1DV sand transport module. We validate the hydrodynamic input against field measurements and present flow, wave and sand transport computations for the years 2013–2017. Our computations show that the net annual sand transport rates along the Dutch coast are determined by peak tidal velocities (and asymmetry thereof), density driven residual flows, wind driven residual flows and waves. The annual mean alongshore transports vary along the continuous 20 m depth contour. The computed total cross-shore transports are onshore directed over the continuous 20 m, 18 m and 16 m depth contours and increase with decreasing water depth. The effect of density difference and wind on the 3D structure of the flow and on the sand transports cannot be neglected along the Dutch lower shoreface. Our computations show that excluding the effect of density results in a significant decrease of the onshore directed transports. Also switching off wind largely counteracts this effect. The net cross-shore transport is determined by a delicate balance between gross onshore and offshore transports, where wave conditions are important. We show an example for Scheveningen where the net cross-shore transport is onshore directed when including all wave conditions but would be offshore directed when excluding waves higher than 3.5 m. In contrast, at Callantsoog the highest waves contribute more to the offshore directed transports. These results suggest that storm conditions play an important role in the magnitude and direction of the net annual transport rates at the lower shoreface.","Coastal Genesis 2.0; Dutch lower shoreface; Modelling; Sand transport","en","journal article","","","","","","","","","","","Coastal Engineering","","",""
"uuid:46ad49cb-b75e-4576-af87-82fcdc747a7f","http://resolver.tudelft.nl/uuid:46ad49cb-b75e-4576-af87-82fcdc747a7f","A Local Search Algorithm for Train Unit Shunting with Service Scheduling","van den Broek, Roel (Universiteit Utrecht); Hoogeveen, Han (Universiteit Utrecht); van den Akker, Marjan (Universiteit Utrecht); Huisman, B. (TU Delft Algorithmics; Nederlandse Spoorwegen)","","2022","In this paper we consider the train unit shunting problem extended with service task scheduling. This problem originates from Dutch Railways, which is the main railway operator in the Netherlands. Its urgency stems from the upcoming expansion of the rolling stock fleet needed to handle the ever-increasing number of passengers. The problem consists of matching train units arriving on a shunting yard to departing trains, scheduling service tasks such as cleaning and maintenance on the available resources, and parking the trains on the available tracks such that the shunting yard can operate conflict-free. These different aspects lead to a computationally extremely difficult problem, which combines several well-known NP-hard problems. In this paper, we present the first solution method covering all aspects of the shunting and scheduling problem. We describe a partial order schedule representation that captures the full problem, and we present a local search algorithm that utilizes the partial ordering. The proposed solution method is compared with an existing mixed integer linear program in a computational study on realistic instances provided by Dutch Railways. We show that our local search algorithm is the first method to solve real-world problem instances of the complete shunting and scheduling problem. It even outperforms current algorithms when the train unit shunting problem is considered in isolation, that is, without service tasks. Although our method was developed for the case of the Dutch Railways, it is applicable to any shunting yard or service location, irrespective of its layout, that uses self-propelling train units and that does not have to handle passing trains.","Local search; Scheduling; Shunting","en","journal article","","","","","","Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.","","2023-07-01","","","Algorithmics","","",""
"uuid:a0d2d875-9c16-4780-b97a-c023235bcd45","http://resolver.tudelft.nl/uuid:a0d2d875-9c16-4780-b97a-c023235bcd45","Controlling the hydraulic resistance of membrane biofilms by engineering biofilm physical structure","Desmond, Peter (Rheinisch-Westfälische Technische Hochschule); Huisman, Kees Theo (King Abdullah University of Science and Technology); Sanawar, Huma (King Abdullah University of Science and Technology); Farhat, Nadia M. (King Abdullah University of Science and Technology); Traber, Jacqueline (Swiss Federal Institute of Aquatic Science and Technology); Fridjonsson, Einar O. (University of Western Australia); Johns, Michael L. (University of Western Australia); Flemming, Hans Curt (Universität Duisburg-Essen; Singapore Centre for Environmental Life Sciences Engineering,; IWW Water Centre, Muelheim); Picioreanu, C. (Water Desalination and Reuse Center; King Abdullah University of Science and Technology); Vrouwenvelder, J.S. (TU Delft BT/Environmental Biotechnology; King Abdullah University of Science and Technology)","","2022","The application of membrane technology for water treatment and reuse is hampered by the development of a microbial biofilm. Biofilm growth in micro-and ultrafiltration (MF/UF) membrane modules, on both the membrane surface and feed spacer, can form a secondary membrane and exert resistance to permeation and crossflow, increasing energy demand and decreasing permeate quantity and quality. In recent years, exhaustive efforts were made to understand the chemical, structural and hydraulic characteristics of membrane biofilms. In this review, we critically assess which specific structural features of membrane biofilms exert resistance to forced water passage in MF/UF membranes systems applied to water and wastewater treatment, and how biofilm physical structure can be engineered by process operation to impose less hydraulic resistance (“below-the-pain threshold”). Counter-intuitively, biofilms with greater thickness do not always cause a higher hydraulic resistance than thinner biofilms. Dense biofilms, however, had consistently higher hydraulic resistances compared to less dense biofilms. The mechanism by which density exerts hydraulic resistance is reported in the literature to be dependant on the biofilms’ internal packing structure and EPS chemical composition (e.g., porosity, polymer concentration). Current reports of internal porosity in membrane biofilms are not supported by adequate experimental evidence or by a reliable methodology, limiting a unified understanding of biofilm internal structure. Identifying the dependency of hydraulic resistance on biofilm density invites efforts to control the hydraulic resistance of membrane biofilms by engineering internal biofilm structure. Regulation of biofilm internal structure is possible by alteration of key determinants such as feed water nutrient composition/concentration, hydraulic shear stress and resistance and can engineer biofilm structural development to decrease density and therein hydraulic resistance. Future efforts should seek to determine the extent to which the concept of “biofilm engineering” can be extended to other biofilm parameters such as mechanical stability and the implication for biofilm control/removal in engineered water systems (e.g., pipelines and/or, cooling towers) susceptible to biofouling.","Biofilm; Density; Hydraulic resistance; Membrane filtration; Physical structure","en","journal article","","","","","","Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.","","2023-07-01","","","BT/Environmental Biotechnology","","",""
"uuid:000894ae-1486-46f4-9964-9d507139093c","http://resolver.tudelft.nl/uuid:000894ae-1486-46f4-9964-9d507139093c","Connected Through Mediated Social Touch: “Better Than a Like on Facebook.” A Longitudinal Explorative Field Study Among Geographically Separated Romantic Couples","van Hattum, Martijn T. (TNO); Huisman, G. (TU Delft Human Information Communication Design); Toet, Alexander (TNO); van Erp, Jan B.F. (University of Twente; TNO)","","2022","In recent years, there has been a significant increase in research on mediated communication via social touch. Previous studies indicated that mediated social touch (MST) can induce similar positive outcomes to interpersonal touch. However, studies investigating the user experience of MST technology predominantly involve brief experiments that are performed in well-controlled laboratory conditions. Hence, it is still unknown how MST affects the relationship and communication between physically separated partners in a romantic relationship, in a naturalistic setting and over a longer period of time. In a longitudinal explorative field study, the effects of MST on social connectedness and longing for touch among geographically separated romantic couples were investigated in a naturalistic setting. For 2 weeks, 17 couples used haptic bracelets, that were connected via the internet, to exchange mediated squeeze-like touch signals. Before and after this period, they reported their feelings of social connectedness and longing for touch through questionnaires. The results show that the use of haptic bracelets (1) enhanced social connectedness among geographically separated couples but (2) did not affect their longing for touch. Interviews conducted at the end of the study were analyzed following the thematic analysis method to generate prominent themes and patterns in using MST technology among participant couples. Two main themes were generated that captured (a) the way the bracelets fostered a positive one-to-one connection between partners and (b) the way in which participants worked around their frustrations with the bracelets. Detailed findings and limitations of this longitudinal field study are further discussed, and suggestions are made for future research.","haptic bracelets; haptics; longing for touch; mediated touch; social connectedness; social touch; wearable haptics","en","journal article","","","","","","","","","","","Human Information Communication Design","","",""
"uuid:a5f14f57-4c85-4cb4-905e-e2b213a2074c","http://resolver.tudelft.nl/uuid:a5f14f57-4c85-4cb4-905e-e2b213a2074c","Social robots as eating companions","Niewiadomski, Radoslaw (Università di Trento); Bruijnes, Merijn (Universiteit Utrecht); Huisman, G. (TU Delft Human Information Communication Design); Gallagher, Conor Patrick (University College Cork); Mancini, Maurizio (Sapienza University of Rome)","","2022","Previous research shows that eating together (i.e., commensality) impacts food choice, time spent eating, and enjoyment. Conversely, eating alone is considered a possible cause of unhappiness. In this paper, we conceptually explore how interactive technology might allow for the creation of artificial commensal companions: embodied agents providing company to humans during meals (e.g., a person living in isolation due to health reasons). We operationalize this with the design of our commensal companion: a system based on the MyKeepon robot, paired with a Kinect sensor, able to track the human commensal's activity (i.e., food picking and intake) and able to perform predefined nonverbal behavior in response. In this preliminary study with 10 participants, we investigate whether this autonomous social robot-based system can positively establish an interaction that humans perceive and whether it can influence their food choices. In this study, the participants are asked to taste some chocolates with and without the presence of an artificial commensal companion. The participants are made to believe that the study targets the food experience, whilst the presence of a robot is accidental. Next, we analyze their food choices and feedback regarding the role and social presence of the artificial commensal during the task performance. We conclude the paper by discussing the lessons we learned about the first interactions we observed between a human and a social robot in a commensality setting and by proposing future steps and more complex applications for this novel kind of technology.","artificial companion; commensality; computational commensality; nonverbal interaction; social robot","en","journal article","","","","","","","","","","","Human Information Communication Design","","",""
"uuid:8495939e-eb6b-4fc0-a0ba-63184bfb10bd","http://resolver.tudelft.nl/uuid:8495939e-eb6b-4fc0-a0ba-63184bfb10bd","Exploring views on affective haptic devices in times of COVID-19","Ipakchian Askari, Sima (Eindhoven University of Technology); Huisman, G. (TU Delft Human Information Communication Design); Haans, Antal (Eindhoven University of Technology); IJsselsteijn, Wijnand A. (Eindhoven University of Technology)","","2022","Affective haptic devices (AHDs) are communication technologies utilizing the sense of touch, and include mediated social touch (MST), symbolic haptic messaging, and awareness systems that, for example, let one feel another person's heartbeat. The COVID-19 pandemic and consequent social distancing measures have led to a reemphasis of the importance of social touch, and many people have experienced firsthand what it is like to miss touching loved ones. This offers an excellent opportunity to study people's intention to use AHDs. For this purpose, a survey study (n = 277) was conducted combining qualitative and quantitative data analysis methods. Touch deprivation, resulting from not being able to touch a loved one, was associated with intention to use AHDs: the more deprived an individual, the higher his or her intention to use AHDs. Technology readiness and touch aversion did not affect intention to use AHDs. AHDs for symbolic messaging gained higher interest than MST and awareness devices, and long-distance relationships were seen as the most likely scenario for using AHDs. Bi-directionality, synchronicity, and symmetry were regarded as important features for providing shared meaning and a sense of connectedness. Reviewability, multimodality, and actuation type were also deemed important. Limitations of the study and implications for the design of AHDs are discussed.","communication characteristics; COVID-19; haptic technology; mediated social touch; social touch technology; technology interest; touch deprivation","en","journal article","","","","","","","","","","","Human Information Communication Design","","",""
"uuid:79f42e0f-5d47-4ed8-8268-06b9a2e52cae","http://resolver.tudelft.nl/uuid:79f42e0f-5d47-4ed8-8268-06b9a2e52cae","Resonance as a Design Strategy for AI and Social Robots","Lomas, J.D. (TU Delft Design Aesthetics); Lin, Albert (University of California); Dikker, Suzanne (New York University; Vrije Universiteit Amsterdam); Forster, D. (University of California); Lupetti, M.L. (TU Delft Design Aesthetics); Huisman, G. (TU Delft Human Information Communication Design); Habekost, Julika (University of California); Beardow, C.R. (TU Delft Design Aesthetics); van der Maden, W.L.A. (TU Delft Design Aesthetics)","","2022","Resonance, a powerful and pervasive phenomenon, appears to play a major role in human interactions. This article investigates the relationship between the physical mechanism of resonance and the human experience of resonance, and considers possibilities for enhancing the experience of resonance within human–robot interactions. We first introduce resonance as a widespread cultural and scientific metaphor. Then, we review the nature of “sympathetic resonance” as a physical mechanism. Following this introduction, the remainder of the article is organized in two parts. In part one, we review the role of resonance (including synchronization and rhythmic entrainment) in human cognition and social interactions. Then, in part two, we review resonance-related phenomena in robotics and artificial intelligence (AI). These two reviews serve as ground for the introduction of a design strategy and combinatorial design space for shaping resonant interactions with robots and AI. We conclude by posing hypotheses and research questions for future empirical studies and discuss a range of ethical and aesthetic issues associated with resonance in human–robot interactions.","AI for wellbeing; design space; entrainment; human-media interaction; metaphor; resonance; social robotics; synchronization","en","journal article","","","","","","","","","","","Design Aesthetics","","",""
"uuid:3b2e3c1a-0361-49cd-a73b-eae83eb6813e","http://resolver.tudelft.nl/uuid:3b2e3c1a-0361-49cd-a73b-eae83eb6813e","Editorial: Perspectives on Multisensory Human-Food Interaction","Velasco, Carlos (BI Norwegian Business School); Obrist, Marianna (University College London (UCL)); Huisman, G. (TU Delft Human Information Communication Design); Nijholt, Anton (University of Twente); Spence, Charles (University of Oxford); Motoki, Kosuke (Miyagi University, Sendai); Narumi, Takuji (University of Tokyo)","","2021","","food; human-computer interaction; human-food interaction; multisensory; multisensory experiences; technology","en","contribution to periodical","","","","","","","","","","","Human Information Communication Design","","",""
"uuid:a738deb1-bef3-498a-b4e0-48e04af9c87f","http://resolver.tudelft.nl/uuid:a738deb1-bef3-498a-b4e0-48e04af9c87f","TORS: A train unit shunting and servicing simulator","van der Linden, J.G.M. (TU Delft Algorithmics); Mulderij, J. (TU Delft Algorithmics); Huisman, B. (TU Delft Algorithmics; NS Stations); Den Ouden, Joris W. (NS Stations); Van Den Akker, Marjan (Universiteit Utrecht); Hoogeveen, Han (Universiteit Utrecht); de Weerdt, M.M. (TU Delft Algorithmics)","","2021","When trains are finished with their transportation tasks during the day, they are moved to a shunting yard where they are routed, parked, cleaned, subject to regular maintenance checks and repaired during the night. The resulting Train Unit Shunting and Servicing problem motivates advanced research in planning and scheduling in general since it integrates several known individually hard problems while incorporating many real-life details. We developed an event-based simulator called TORS (Dutch acronym for Train Shunting and Servicing Simulator), that provides the user with a state and all feasible actions. After an action is picked, TORS calculates the result and the process repeats. This simulator facilitates research into a realistic application of multi-agent path finding.","Event-based simulation; Multi-Agent Path Finding; Railway Operations; TORS; Train Unit Shunting and Servicing; Train Unit Shunting Problem","en","conference paper","International Foundation for Autonomous Agents and Multiagent Systems (IFAAMAS)","","","","","Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.","","2021-11-10","","","Algorithmics","","",""
"uuid:ab58a845-38a2-41ee-81bc-912896aaba94","http://resolver.tudelft.nl/uuid:ab58a845-38a2-41ee-81bc-912896aaba94","Polygenic Risk Score of Longevity Predicts Longer Survival across an Age Continuum","Tesi, N. (TU Delft Pattern Recognition and Bioinformatics; Alzheimer Center Amsterdam; Vrije Universiteit Amsterdam); van der Lee, S.J. (Alzheimer Center Amsterdam; Vrije Universiteit Amsterdam); Hulsman, M. (TU Delft Pattern Recognition and Bioinformatics; Amsterdam UMC); Jansen, Iris E. (Alzheimer Center Amsterdam; Vrije Universiteit Amsterdam); Stringa, N. (Amsterdam Public Health; Amsterdam UMC); van Schoor, N.M. (Amsterdam Public Health; Amsterdam UMC); Huisman, Martijn (Amsterdam Public Health; Amsterdam UMC); Reinders, M.J.T. (TU Delft Pattern Recognition and Bioinformatics); Holstege, H. (Alzheimer Center Amsterdam; Vrije Universiteit Amsterdam)","","2021","Studying the genome of centenarians may give insights into the molecular mechanisms underlying extreme human longevity and the escape of age-related diseases. Here, we set out to construct polygenic risk scores (PRSs) for longevity and to investigate the functions of longevity-associated variants. Using a cohort of centenarians with maintained cognitive health (N = 343), a population-matched cohort of older adults from 5 cohorts (N = 2905), and summary statistics data from genome-wide association studies on parental longevity, we constructed a PRS including 330 variants that significantly discriminated between centenarians and older adults. This PRS was also associated with longer survival in an independent sample of younger individuals (p =. 02), leading up to a 4-year difference in survival based on common genetic factors only. We show that this PRS was, in part, able to compensate for the deleterious effect of the APOE-ϵ4 allele. Using an integrative framework, we annotated the 330 variants included in this PRS by the genes they associate with. We find that they are enriched with genes associated with cellular differentiation, developmental processes, and cellular response to stress. Together, our results indicate that an extended human life span is, in part, the result of a constellation of variants each exerting small advantageous effects on aging-related biological mechanisms that maintain overall health and decrease the risk of age-related diseases.","Centenarians; Cognitive health; Genetics; Healthy aging; Longevity","en","journal article","","","","","","","","","","","Pattern Recognition and Bioinformatics","","",""
"uuid:00919884-e74a-41a2-a9d6-7c4af7ee11e5","http://resolver.tudelft.nl/uuid:00919884-e74a-41a2-a9d6-7c4af7ee11e5","Muntonderzoek op microschaal","Huisman, H (External organisation); van Eijck, L. (TU Delft RST/Neutron and Positron Methods in Materials); Ngan-Tillard, D.J.M. (TU Delft Geo-engineering); Joosten, I.A.E. (Student TU Delft); Zhou, Z. (TU Delft RST/Neutron and Positron Methods in Materials)","de Groot, T (editor); de Kort, J.W. (editor)","2021","","","nl","book chapter","","","","","","","","","","","RST/Neutron and Positron Methods in Materials","","",""
"uuid:484d3368-cbaf-4712-9d69-ffb9cff7827c","http://resolver.tudelft.nl/uuid:484d3368-cbaf-4712-9d69-ffb9cff7827c","Conversational futures: Emancipating conversational interactions for futures worth wanting","Lee, Minha (Eindhoven University of Technology); Noortman, Renee (Eindhoven University of Technology); Zaga, Cristina (University of Twente); Starke, Alain (Wageningen University & Research); Huisman, G. (TU Delft Human Information Communication Design); Andersen, Kristina (Eindhoven University of Technology)","","2021","We present a vision for conversational user interfaces (CUIs) as probes for speculating with, rather than as objects to speculate about. Popular CUIs, e.g., Alexa, are changing the way we converse, narrate, and imagine the world(s) to come. Yet, current conversational interactions normatively may promote non-desirable ends, delivering a restricted range of request-response interactions with sexist and digital colonialist tendencies. Our critical design approach envisions alternatives by considering how future voices can reside in CUIs as enabling probes. We present novel explorations that illustrate the potential of CUIs as critical design material, by critiquing present norms and conversing with imaginary species. As micro-level interventions, we show that conversations with diverse futures through CUIs can persuade us to critically shape our discourse on macro-scale concerns of the present, e.g., sustainability. We refect on how conversational interactions with pluralistic, imagined futures can contribute to how being human stands to change.","Conversational user interfaces; critical design; design fction; spec- ulative design; futuring","en","conference paper","","","","","","Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.","","2023-07-01","","","Human Information Communication Design","","",""
"uuid:5354864d-3fa5-4acc-8950-906621e3c6b0","http://resolver.tudelft.nl/uuid:5354864d-3fa5-4acc-8950-906621e3c6b0","Feedback of head gestures in audio-haptic remote communication","Huisman, G. (TU Delft Human Information Communication Design); Lisini Baldi, Tommaso (University of Siena); D'Aurizio, Nicole (University of Siena); Prattichizzo, Domenico (University of Siena)","","2021","In this brief, we present the preliminary design of a wearable system able to detect and haptically display head motions of conversation participants. The aim of the system is to allow for remote communication to not have to rely on visual social cues. To demonstrate the design principles of the system, we recorded data from a single participant during a remote walking conversation using Zoom.","Haptics; Head Gesture; Noddin; Audio-Haptic Interaction; Re- mote Communication","en","conference paper","Association for Computing Machinery (ACM)","","","","","Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.","","2023-07-01","","","Human Information Communication Design","","",""
"uuid:f975f774-101d-45dd-913f-344448b6aebc","http://resolver.tudelft.nl/uuid:f975f774-101d-45dd-913f-344448b6aebc","Genome-wide association study of frontotemporal dementia identifies a C9ORF72 haplotype with a median of 12-G4C2 repeats that predisposes to pathological repeat expansions","Reus, Lianne M. (Vrije Universiteit Amsterdam); Jansen, Iris E. (Alzheimer Center Amsterdam; Vrije Universiteit Amsterdam); van Rooij, Jeroen (Erasmus MC); van Schoor, Natasja M. (Vrije Universiteit Amsterdam); Tesi, N. (TU Delft Pattern Recognition and Bioinformatics; Alzheimer Center Amsterdam; Vrije Universiteit Amsterdam); Reinders, M.J.T. (TU Delft Pattern Recognition and Bioinformatics); Huisman, M.A. (TU Delft Technology, Policy and Management; Vrije Universiteit Amsterdam); van der Lugt, Aad (Erasmus MC); van der Lee, Sven J. (Alzheimer Center Amsterdam; Vrije Universiteit Amsterdam)","","2021","Genetic factors play a major role in frontotemporal dementia (FTD). The majority of FTD cannot be genetically explained yet and it is likely that there are still FTD risk loci to be discovered. Common variants have been identified with genome-wide association studies (GWAS), but these studies have not systematically searched for rare variants. To identify rare and new common variant FTD risk loci and provide more insight into the heritability of C9ORF72-related FTD, we performed a GWAS consisting of 354 FTD patients (including and excluding N = 28 pathological repeat carriers) and 4209 control subjects. The Haplotype Reference Consortium was used as reference panel, allowing for the imputation of rare genetic variants. Two rare genetic variants nearby C9ORF72 were strongly associated with FTD in the discovery (rs147211831: OR = 4.8, P = 9.2 × 10−9, rs117204439: OR = 4.9, P = 6.0 × 10−9) and replication analysis (P < 1.1 × 10−3). These variants also significantly associated with amyotrophic lateral sclerosis in a publicly available dataset. Using haplotype analyses in 1200 individuals, we showed that these variants tag a sub-haplotype of the founder haplotype of the repeat expansion that was previously found to be present in virtually all pathological C9ORF72 G4C2 repeat lengths. This new risk haplotype was 10 times more likely to contain a C9ORF72 pathological repeat length compared to founder haplotypes without one of the two risk variants (~22% versus ~2%; P = 7.70 × 10−58). In haplotypes without a pathologic expansion, the founder risk haplotype had a higher number of repeats (median = 12 repeats) compared to the founder haplotype without the risk variants (median = 8 repeats) (P = 2.05 × 10−260). In conclusion, the identified risk haplotype, which is carried by ~4% of all individuals, is a major risk factor for pathological repeat lengths of C9ORF72 G4C2. These findings strongly indicate that longer C9ORF72 repeats are unstable and more likely to convert to germline pathological C9ORF72 repeat expansions.","","en","journal article","","","","","","","","","Technology, Policy and Management","","Pattern Recognition and Bioinformatics","","",""
"uuid:02e3c607-7ae9-4749-8f1d-a0b94e89b0c7","http://resolver.tudelft.nl/uuid:02e3c607-7ae9-4749-8f1d-a0b94e89b0c7","Manifesto for Digital Social Touch in Crisis","Jewitt, Carey (University College London (UCL)); Price, Sara (University College London (UCL)); Steimle, Jürgen (Saarland University); Huisman, G. (TU Delft Human Information Communication Design); Golmohammadi, Lili (University College London (UCL)); Pourjafarian, Narges (Saarland University); Frier, William (Ultraleap, Bristol); Howard, Thomas (University of Rennes); Ipakchian Askari, Sima (Eindhoven University of Technology)","","2021","This qualitative exploratory research paper presents a Manifesto for Digital Social Touch in Crisis - a provocative call to action to designers, developers and researchers to rethink and reimagine social touch through a deeper engagement with the social and sensory aspects of touch. This call is motivated by concerns that social touch is in a crisis signaled by a decline in social touch over the past 2 decades, the problematics of inappropriate social touch, and the well documented impact of a lack of social touch on communication, relationships, and well-being and health. These concerns shape how social touch enters the digital realm and raise questions for how and when the complex space of social touch is mediated by technologies, as well the societal implications. The paper situates the manifesto in the key challenges facing haptic designers and developers identified through a series of interdisciplinary collaborative workshops with participants from computer science, design, engineering, HCI and social science from both within industry and academia, and the research literature on haptics. The features and purpose of the manifesto form are described, along with our rationale for its use, and the method of the manifesto development. The starting points, opportunities and challenges, dominant themes and tensions that shaped the manifesto statements are then elaborated on. The paper shows the potential of the manifesto form to bridge between HCI, computer science and engineers, and social scientists on the topic of social touch.","design; digital touch; haptics; interdisciplinary research; manifesto; sensory; social touch; touch","en","journal article","","","","","","","","","","","Human Information Communication Design","","",""
"uuid:6469d758-3b65-4543-83d3-7ce0ab7d49b8","http://resolver.tudelft.nl/uuid:6469d758-3b65-4543-83d3-7ce0ab7d49b8","Genetics Contributes to Concomitant Pathology and Clinical Presentation in Dementia with Lewy Bodies","van der Lee, S.J. (Vrije Universiteit Amsterdam; Amsterdam UMC); van Steenoven, Inger (Vrije Universiteit Amsterdam; Amsterdam UMC); van de Beek, Marleen (Vrije Universiteit Amsterdam; Amsterdam UMC); Tesi, N. (TU Delft Pattern Recognition and Bioinformatics; Vrije Universiteit Amsterdam; Amsterdam UMC); Jansen, Iris E. (Amsterdam UMC; Vrije Universiteit Amsterdam); van Schoor, N.M. (Vrije Universiteit Amsterdam; Amsterdam UMC; Amsterdam Public Health Research Institute); Reinders, M.J.T. (TU Delft Pattern Recognition and Bioinformatics); Huisman, Martijn (Vrije Universiteit Amsterdam; Amsterdam UMC; Amsterdam Public Health Research Institute); Scheltens, Philip (Amsterdam UMC; Vrije Universiteit Amsterdam)","","2021","Background: Dementia with Lewy bodies (DLB) is a complex, progressive neurodegenerative disease with considerable phenotypic, pathological, and genetic heterogeneity. Objective: We tested if genetic variants in part explain the heterogeneity in DLB. Methods: We tested the effects of variants previously associated with DLB (near APOE, GBA, and SNCA) and polygenic risk scores for Alzheimer's disease (AD-PRS) and Parkinson's disease (PD-PRS). We studied 190 probable DLB patients from the Alzheimer's dementia cohort and compared them to 2,552 control subjects. The p-tau/Aβ1-42 ratio in cerebrospinal fluid was used as in vivo proxy to separate DLB cases into DLB with concomitant AD pathology (DLB-AD) or DLB without AD (DLB-pure). We studied the clinical measures age, Mini-Mental State Examination (MMSE), and the presence of core symptoms at diagnosis and disease duration. Results: We found that all studied genetic factors significantly associated with DLB risk (all-DLB). Second, we stratified the DLB patients by the presence of concomitant AD pathology and found that APOE ϵ4 and the AD-PRS associated specifically with DLB-AD, but less with DLB-pure. In addition, the GBA p.E365K variant showed strong associated with DLB-pure and less with DLB-AD. Last, we studied the clinical measures and found that APOE ϵ4 associated with reduced MMSE, higher odds to have fluctuations and a shorter disease duration. In addition, the GBA p.E365K variant reduced the age at onset by 5.7 years, but the other variants and the PRS did not associate with clinical features. Conclusion: These finding increase our understanding of the pathological and clinical heterogeneity in DLB.","Dementia with Lewy bodies; genetic risk factors; genotype-phenotype associations; polygenic risk scores","en","journal article","","","","","","","","","","","Pattern Recognition and Bioinformatics","","",""
"uuid:993178df-d4a7-4e13-ad83-173dcd8f0310","http://resolver.tudelft.nl/uuid:993178df-d4a7-4e13-ad83-173dcd8f0310","CISS Effect: A Magnetoresistance through Inelastic Scattering","Huisman, K.H. (TU Delft QN/Thijssen Group; Kavli institute of nanoscience Delft); Thijssen, J.M. (TU Delft QN/Thijssen Group; Kavli institute of nanoscience Delft)","","2021","One of the manifestations of chirality-induced spin selectivity is the magnetoresistance (MR) in two-terminal transport measurements on molecular junctions. This paper investigates the effect of spin-orbit coupling in the leads on the polarization of the transmission. A helicene molecule between two gold contacts is studied using a tight binding model. To study the occurrence of MR, which is prohibited in coherent transport, as a consequence of the Büttiker reciprocity, we add Büttiker probes to the system in order to incorporate inelastic scattering effects. We show that for a strict two-terminal system without inelastic scattering, the MR is strictly zero in the linear and nonlinear regimes. We show that for a two-terminal system with inelastic scattering, a nonzero MR does appear in the nonlinear regime, reaching values of the order of 0.1%. Our calculations show that for a two-terminal system respecting time-reversal symmetry and charge conservation, a nonzero MR can only be obtained through inelastic scattering. However, spin-orbit coupling in the leads in combination with inelastic scattering modeled with the Büttiker probe method cannot explain the magnitude of the MR measured in experiments.","","en","journal article","","","","","","","","","","","QN/Thijssen Group","","",""
"uuid:8cf98f09-d71d-487b-9c0a-e8ddd57119d7","http://resolver.tudelft.nl/uuid:8cf98f09-d71d-487b-9c0a-e8ddd57119d7","A next step in disruption management: combining operations research and complexity science","Dekker, Mark M. (Universiteit Utrecht); van Lieshout, Rolf N. (Erasmus Universiteit Rotterdam); Ball, Robin C. (University of Warwick); Bouman, Paul C. (Erasmus Universiteit Rotterdam); Dekker, Stefan C. (Universiteit Utrecht); Dijkstra, Henk A. (Universiteit Utrecht); Goverde, R.M.P. (TU Delft Transport and Planning); Huisman, Dennis (Erasmus Universiteit Rotterdam; N.V. Nederlandse Spoorwegen); Panja, Debabrata (Universiteit Utrecht); Schaafsma, Alfons A.M. (ProRail); van den Akker, Marjan (Universiteit Utrecht)","","2021","Railway systems occasionally get into a state of being out-of-control, meaning that barely any train is running, even though the required resources (infrastructure, rolling stock and crew) are available. Because of the large number of affected resources and the absence of detailed, timely and accurate information, currently existing disruption management techniques cannot be applied in out-of-control situations. Most of the contemporary approaches assume that there is only one single disruption with a known duration, that all information about the resources is available, and that all stakeholders in the operations act as expected. Another limitation is the lack of knowledge about why and how disruptions accumulate and whether this process can be predicted. To tackle these problems, we develop a multidisciplinary framework combining techniques from complexity science and operations research, aiming at reducing the impact of these situations and—if possible—avoiding them. The key elements of this framework are (i) the generation of early warning signals for out-of-control situations, (ii) isolating a specific region such that delay stops propagating, and (iii) the application of decentralized decision making, more suited for information-sparse out-of-control situations.","Complexity science; Operations research; Railway disruption management; Rescheduling","en","journal article","","","","","","","","","","","Transport and Planning","","",""
"uuid:ace78c36-d0a3-40d7-bb50-505bce956042","http://resolver.tudelft.nl/uuid:ace78c36-d0a3-40d7-bb50-505bce956042","Methods for brain disease genetics using gene expression data of the healthy brain","Huisman, S.M.H. (TU Delft Pattern Recognition and Bioinformatics)","Reinders, M.J.T. (promotor); Lelieveldt, B.P.F. (promotor); Delft University of Technology (degree granting institution)","2020","Medical studies are rarely easy, and it is especially challenging to understand brain disease. Brains are highly complex organs, and it is, for instance, hard to see the relationships between behavioural change in a person and the changes in the connections among the billions of cells in the brain that cause this behavioural change. Many brain related disorders, such as autism, schizophrenia, and Alzheimer's disease, have some genetic basis. They are influenced by small differences in people's genetic code, which are called variants. Genetic variants can cause differences in the activity or effectiveness of genes. And if genes are involved, knowing which genes these are, and what effect they have can help to find treatments for these diseases.","","en","doctoral thesis","","978-94-6380-844-6","","","","","","","","","Pattern Recognition and Bioinformatics","","",""
"uuid:e3b1125d-5076-4890-895d-755622679132","http://resolver.tudelft.nl/uuid:e3b1125d-5076-4890-895d-755622679132","Understanding the influence of 3D sidewall roughness on observed line-edge roughness in scanning electron microscopy images","van Kessel, L.C.P.M.; Huisman, T. (ASML); Hagen, C.W. (TU Delft ImPhys/Microscopy Instrumentation & Techniques)","Adan, Ofer (editor); Robinson, John C. (editor)","2020","Line-edge roughness (LER) is often measured from top-down critical dimension scanning electron microscope (CD-SEM) images. The true three-dimensional roughness profile of the sidewall is typically ignored in such analyses. We study the response of a CD-SEM to sidewall roughness (SWR) by simulation. We generate random rough lines and spaces, where the SWR is modelled by a known power spectral density. We then obtain corresponding CD-SEM images using a Monte Carlo electron scattering simulator. We find the measured LER from these images, and compare it to the known input roughness. We find that, for isolated lines, the SEM measures the outermost extrusion of the rough sidewall. The result is that the measured LER is up to a factor 2 less than the true on-wafer roughness. The effect can be accurately modelled by making a top-down projection of the rough edge. Our model for isolated lines works fairly well for a dense grating of lines and spaces, as long as the trench width exceeds the line height.","Line edge roughness; Metrology; Monte Carlo methods; Scanning electron microscopy; Sidewall roughness","en","conference paper","SPIE","","","","","","","","","","ImPhys/Microscopy Instrumentation & Techniques","","",""
"uuid:eaefeebf-e182-4ec1-8698-0bd62d76dedb","http://resolver.tudelft.nl/uuid:eaefeebf-e182-4ec1-8698-0bd62d76dedb","Ceramic-faience hybrids were used to recycle bronze in North-Western European Iron Age egg-shaped crucibles","Huisman, D. J. (Cultural Heritage Agency of the Netherlands; Rijksuniversiteit Groningen); Bach, A. (Student TU Delft); Ngan-Tillard, D.J.M. (TU Delft Geo-engineering); Joosten, I. (Rijksuniversiteit Groningen); van den Eynde, G. (Municipality of Tilburg)","","2020","We investigated the characteristics of a group of 13 Middle Iron Age egg-shaped crucibles and crucible fragments from Tilburg (The Netherlands). We used a combination of optical and chemical analyses, including hand-held XRF, microCT scanning and 3-D printing polarizing light microscopy and SEM-EDX. The chemical analyses confirmed that the crucibles were used for copper alloy metallurgy. Impressions in the lids of the crucibles turned out to be imprints of copper alloy scrap, including fragments of twisted wire and fibulae. Most remarkable, however, is the large proportion of sheet metal among the scrap.
In order to make crucibles from the local, non-refractory clays, a hitherto unknown ceramic-faience hybrid was used: A combination of clay and halophytic plant ash was mixed with silt into a paste, and this was used to construct the crucible. During firing, the flux would promote melting of the clays and probably prevent catastrophic failure of the crucibles. The resulting glassy groundmass – in which silt grains are embedded and partially dissolved – is rich in Al2O3 as well as in Na2O, K2O, CaO, MgO and Fe2O3.
It is likely that this technique of crucible manufacture was widespread in Late Prehistory in areas where no refractory clays were available.","3D-printing; Metallurgical ceramics; Micro CT; Microscopy; SEM-EDX; Thin sections","en","journal article","","","","","","","","","","","Geo-engineering","","",""
"uuid:c791571a-aa13-45c3-8854-04c344f20078","http://resolver.tudelft.nl/uuid:c791571a-aa13-45c3-8854-04c344f20078","Understanding the influence of three-dimensional sidewall roughness on observed line-edge roughness in scanning electron microscopy images","van Kessel, L.C.P.M. (TU Delft ImPhys/Microscopy Instrumentation & Techniques); Huisman, T.A. (ASML); Hagen, Cornelis W. (Student TU Delft)","","2020","Background: Line-edge roughness (LER) is often measured from top-down critical dimension scanning electron microscope (CD-SEM) images. The true three-dimensional roughness profile of the sidewall is typically ignored in such analyses. Aim: We study the response of a CD-SEM to sidewall roughness (SWR) by simulation. Approach: We generate random rough lines and spaces, where the SWR is modeled by a known power spectral density. We then obtain corresponding CD-SEM images using a Monte Carlo electron scattering simulator. We find the measured LER from these images and compare it to the known input roughness. Results: For isolated lines, the SEM measures the outermost extrusion of the rough sidewall. The result is that the measured LER is up to a factor of 2 less than the true on-wafer roughness. The effect can be modeled by making a top-down projection of the rough edge. Our model for isolated lines works fairly well for a dense grating of lines and spaces as long as the trench width exceeds the line height. Conclusions: In order to obtain and compare accurate LER values, the projection effect of SWR needs to be taken into account.","line edge roughness; metrology; Monte Carlo methods; scanning electron microscopy; sidewall roughness","en","journal article","","","","","","","","","","","ImPhys/Microscopy Instrumentation & Techniques","","",""
"uuid:7afa4cf8-010c-4784-bcae-6eaf6e293a45","http://resolver.tudelft.nl/uuid:7afa4cf8-010c-4784-bcae-6eaf6e293a45","Van Warder naar Zwitserland: Op het spoor van de fluit","Huisman, Luc Hans (Cultural Heritage Agency of the Netherlands; Rijksuniversiteit Groningen); Bando, Roberto (External organisation); Clark, Kate (External organisation); Coenen, Thijs (External organisation); Frijhof, Willem (External organisation); Meijvogel-de Koning, P.M. (TU Delft Lab Geoscience and Engineering); Ngan-Tillard, D.J.M. (TU Delft Geo-engineering); Opdebeeck, Johan (External organisation)","","2020","Een dwarsfluit uit het begin van de zestiende eeuw. Die doken archeologen op uit een scheepswrak in het Markermeer. Alleen dat al is een extreem zeldzame gebeurtenis. Maar van wie kan die fluit geweest zijn? Een stuk papier bij het mondgat zet een gevarieerd team van deskundigen op een spoor dat warmer en warmer wordt","","en","journal article","","","","","","","","","","","Lab Geoscience and Engineering","","",""
"uuid:d2e7d329-44de-49ec-9ef7-901f17174f6d","http://resolver.tudelft.nl/uuid:d2e7d329-44de-49ec-9ef7-901f17174f6d","Insecure tenure in Amsterdam: who rents with a temporary lease, and why? A baseline from 2015","Huisman, C.J. (TU Delft Housing Management; Rijksuniversiteit Groningen); Mulder, Clara H. (Rijksuniversiteit Groningen)","","2020","Given that insecure leases impact negatively on ontological security and subjective well-being, and given increasing pressure on European housing markets, more insight into insecure leases is timely. In this article, we assess the occurrence of temporary leases in the city of Amsterdam in 2015, and explore the characteristics of the tenants. We employ hitherto underused local survey data (N = 17,803). Although permanent contracts are still dominant, the majority of young adults aged 18–23 are renters with a temporary lease. Students, those with a Western migration background, those who moved because their previous rental contract was terminated or because the previous dwelling was too expensive, and those who moved from abroad were particularly likely to have a temporary lease. Families were unlikely to have a temporary lease. Given recent developments–in 2016 temporary leases were legally established as a regular tenure in the Netherlands–the number of temporary leases may increase sharply from the reported baseline of 2015.","multinomial logistic regression; policy; rental housing; Security of tenure; temporary contracts; the Netherlands","en","journal article","","","","","","","","","","","Housing Management","","",""
"uuid:3827e38b-e387-4fd6-9edb-5da4582a3eaa","http://resolver.tudelft.nl/uuid:3827e38b-e387-4fd6-9edb-5da4582a3eaa","Eating with an artificial commensal companion","Gallagher, Conor Patrick (Cork Constraint Computation Centre); Niewiadomski, Radoslaw (Università di Trento); Bruijnes, M. (TU Delft Interactive Intelligence); Huisman, G. (Hogeschool van Amsterdam); Mancini, Maurizio (Cork Constraint Computation Centre)","","2020","Commensality is defined as ""a social group that eats together"", and eating in a commensality setting has a number of positive effects on humans. The purpose of this paper is to investigate the effects of technology on commensality by presenting an experiment in which a toy robot showing non-verbal social behaviours tries to influence a participants' food choice and food taste perception. We managed to conduct both a qualitative and quantitative study with 10 participants. Results show the favourable impression of the robot on participants. It also emerged that the robot may be able to influence the food choices using its non-verbal behaviors only. However, these results are not statistically significant, perhaps due to the small sample size. In the future, we plan to collect more data using the same experimental protocol, and to verify these preliminary results.","Artificial companion; Computational commensality; Food choice; Social robot","en","conference paper","Association for Computing Machinery (ACM)","","","","","","","","","","Interactive Intelligence","","",""
"uuid:ea61e603-cded-4ee5-b044-228357b27549","http://resolver.tudelft.nl/uuid:ea61e603-cded-4ee5-b044-228357b27549","Efficient Modeling of Complex Sandy Coastal Evolution at Monthly to Century Time Scales","Roelvink, D. (TU Delft Coastal Engineering; Deltares; IHE Delft Institute for Water Education); Huisman, B.J.A. (TU Delft Coastal Engineering; Deltares); Elghandour, A.M.M.A. (Port Said University; IHE Delft Institute for Water Education); Ghonim, Mohamed (IHE Delft Institute for Water Education); Reyns, J.A.H. (Deltares; IHE Delft Institute for Water Education)","","2020","With large-scale human interventions and climate change unfolding as they are now, coastal changes at decadal timescales are not limited to incremental modifications of systems that are fixed in their general geometry, but often show significant changes in layout that may be catastrophic for populations living in previously safe areas. This poses severe challenges that are difficult to meet for existing models. A new free-form coastline model, ShorelineS, is presented that is able to describe large coastal transformations based on relatively simple principles of alongshore transport gradient driven changes as a result of coastline curvature, including under highly obliquely incident waves, and consideration of splitting and merging of coastlines, and longshore transport disturbance by hard structures. An arbitrary number of coast sections is supported, which can be open or closed and can interact with each other through relatively straightforward merging and splitting mechanisms. Rocky parts or structures may block wave energy and/or longshore sediment transport. These features allow for a rich behavior including shoreline undulations and formation of spits, migrating islands, merging of coastal shapes, salients and tombolos. The main formulations of the (open-source) model, which is freely available at www.shorelines.nl, are presented. Test cases show the capabilities of the flexible, vector-based model approach, while field validation cases for a large-scale sand nourishment (the Sand Engine; 21 million m3) and an accreting groin scheme at Al-Gamil (Egypt) show the model’s capability of computing realistic rates of coastline change as well as a good representation of the shoreline shape for real situations.","barrier; coastal evolution; coastline model; salient; spit; tombolo","en","journal article","","","","","","","","","","","Coastal Engineering","","",""
"uuid:fc63b9e2-3d93-4c30-8526-dd7bdbd8ebad","http://resolver.tudelft.nl/uuid:fc63b9e2-3d93-4c30-8526-dd7bdbd8ebad","Immune response and endocytosis pathways are associated with the resilience against Alzheimer’s disease","Tesi, N. (TU Delft Pattern Recognition and Bioinformatics; Vrije Universiteit Amsterdam; Amsterdam UMC); van der Lee, S.J. (Vrije Universiteit Amsterdam; Amsterdam UMC); Hulsman, M. (TU Delft Pattern Recognition and Bioinformatics; Vrije Universiteit Amsterdam; Amsterdam UMC); Jansen, Iris E. (Amsterdam UMC; Vrije Universiteit Amsterdam); Stringa, N. (Amsterdam UMC; Amsterdam Public Health Research Institute); van Schoor, N.M. (Amsterdam UMC; Amsterdam Public Health Research Institute); Scheltens, Philip (Amsterdam UMC; Vrije Universiteit Amsterdam); van der Flier, Wiesje M. (Amsterdam UMC; Vrije Universiteit Amsterdam); Huisman, Martijn (Amsterdam UMC; Amsterdam Public Health Research Institute); Reinders, M.J.T. (TU Delft Pattern Recognition and Bioinformatics); Holstege, H. (TU Delft Intelligent Systems; Vrije Universiteit Amsterdam; Amsterdam UMC)","","2020","Developing Alzheimer’s disease (AD) is influenced by multiple genetic variants that are involved in five major AD-pathways. Per individual, these pathways may differentially contribute to the modification of the AD-risk. The pathways involved in the resilience against AD have thus far been poorly addressed. Here, we investigated to what extent each molecular mechanism associates with (i) the increased risk of AD and (ii) the resilience against AD until extreme old age, by comparing pathway-specific polygenic risk scores (pathway-PRS). We used 29 genetic variants associated with AD to develop pathway-PRS for five major pathways involved in AD. We developed an integrative framework that allows multiple genes to associate with a variant, and multiple pathways to associate with a gene. We studied pathway-PRS in the Amsterdam Dementia Cohort of well-phenotyped AD patients (N = 1895), Dutch population controls from the Longitudinal Aging Study Amsterdam (N = 1654) and our unique 100-plus Study cohort of cognitively healthy centenarians who avoided AD (N = 293). Last, we estimated the contribution of each pathway to the genetic risk of AD in the general population. All pathway-PRS significantly associated with increased AD-risk and (in the opposite direction) with resilience against AD (except for angiogenesis, p < 0.05). The pathway that contributed most to the overall modulation of AD-risk was β-amyloid metabolism (29.6%), which was driven mainly by APOE-variants. After excluding APOE variants, all pathway-PRS associated with increased AD-risk (except for angiogenesis, p < 0.05), while specifically immune response (p = 0.003) and endocytosis (p = 0.0003) associated with resilience against AD. Indeed, the variants in these latter two pathways became the main contributors to the overall modulation of genetic risk of AD (45.5% and 19.2%, respectively). The genetic variants associated with the resilience against AD indicate which pathways are involved with maintained cognitive functioning until extreme ages. Our work suggests that a favorable immune response and a maintained endocytosis pathway might be involved in general neuro-protection, which highlight the need to investigate these pathways, next to β-amyloid metabolism.","","en","journal article","","","","","","","","","","Intelligent Systems","Pattern Recognition and Bioinformatics","","",""
"uuid:f47578b8-289d-40ac-8bc2-ffafbe86c6ab","http://resolver.tudelft.nl/uuid:f47578b8-289d-40ac-8bc2-ffafbe86c6ab","Resonant Pumping of d-d Crystal Field Electronic Transitions as a Mechanism of Ultrafast Optical Control of the Exchange Interactions in Iron Oxides","Mikhaylovskiy, R. V. (Radboud Universiteit Nijmegen; Lancaster University); Huisman, T. J. (Radboud Universiteit Nijmegen); Gavrichkov, V. A. (Federal Research Center KSC SB RAS, Krasnoyarsk); Polukeev, S. I. (Federal Research Center KSC SB RAS, Krasnoyarsk); Ovchinnikov, S. G. (Federal Research Center KSC SB RAS, Krasnoyarsk); Afanasiev, D. (TU Delft QN/Caviglia Lab; Radboud Universiteit Nijmegen; Kavli institute of nanoscience Delft); Pisarev, R. V. (Ioffe Institute); Rasing, Th (Radboud Universiteit Nijmegen); Kimel, A. V. (Radboud Universiteit Nijmegen)","","2020","The microscopic origin of ultrafast modification of the ratio between the symmetric (J) and antisymmetric (D) exchange interaction in antiferromagnetic iron oxides is revealed, using femtosecond laser excitation as a pump and terahertz emission spectroscopy as a probe. By tuning the photon energy of the laser pump pulse we show that the effect of light on the D/J ratio in two archetypical iron oxides FeBO3 and ErFeO3 is maximized when the photon energy is in resonance with a spin and parity forbidden d-d transition between the crystal-field split states of Fe3+ ions. The experimental findings are supported by a multielectron model, which accounts for the resonant absorption of photons by Fe3+ ions. Our results reveal the importance of the parity and spin-change forbidden, and therefore often underestimated, d-d transitions in ultrafast optical control of magnetism.","","en","journal article","","","","","","","","","","","QN/Caviglia Lab","","",""
"uuid:8dddbea2-6121-4fc9-81ab-a2d60ca1c6bb","http://resolver.tudelft.nl/uuid:8dddbea2-6121-4fc9-81ab-a2d60ca1c6bb","Designing tactful objects for sensitive settings: A case study on families dealing with childhood cancer","D'Olivo, P. (TU Delft Emerging Materials; TU Delft Human Information Communication Design); van Bindsbergen, Kelly L.A. (Amsterdam UMC; Princess Máxima Center for Pediatric Oncology); Huisman, J. (TU Delft BT/Botanical Garden Delft); Grootenhuis, Martha A. (Princess Máxima Center for Pediatric Oncology; Emma Children's Hospital Academic Medical Center, University of Amsterdam); Rozendaal, M.C. (TU Delft Human Information Communication Design)","","2020","In the field of Human-Computer Interaction (HCI), there is an increasing interest in designing for well-being. With this contribution, we introduce Tactful Objects as a design perspective on interactive artifacts that empower people in sensitive settings. We explore the concept of tactfulness by designing two interactive artifacts addressing the needs of families dealing with childhood cancer. The first, Mr.V, is an interactive dispenser to stimulate social activities in the family. The second, AscoltaMe, is a kind of walkie-talkie to enhance communication between family members. Eight families in treatment were invited to try out one of these artifacts at home. We report on how they perceived the objects’ impact on family life, how they used and appreciated the objects and how the objects embedded at home. The findings highlight that Tactful Objects enable people to act with respect for their vulnerabilities and circumstances by establishing partnerships and collaborations that are inviting and appropriate for the setting in which they are embedded. We then reflect on the contribution of the work for research in healthcare and design for other sensitive settings. We conclude by presenting the limitations of the study and provide directions for future work.","Childhood Cancer; Families; Human-Computer interaction; Sensitive Settings; Tactful Objects; Tactfulness","en","journal article","","","","","","","","","","","Emerging Materials","","",""
"uuid:d434f695-7ba8-4986-9ab0-e09fdea4d885","http://resolver.tudelft.nl/uuid:d434f695-7ba8-4986-9ab0-e09fdea4d885","Reduced complexity modeling of shoreline response behind offshore breakwaters","Elghandour, A.M.M.A. (TU Delft Coastal Engineering; IHE Delft Institute for Water Education; Port Said University; Universidade do Algarve); Roelvink, D. (TU Delft Coastal Engineering; IHE Delft Institute for Water Education; Deltares); Huisman, B.J.A. (TU Delft Coastal Engineering; Deltares); Reyns, J.A.H. (TU Delft Coastal Engineering; IHE Delft Institute for Water Education; Deltares); Costas, Susana (Universidade do Algarve); Nienhuis, Jaap (Universiteit Utrecht)","","2020","Prediction of the shoreline response behind offshore breakwaters is essential for coastal protection projects. Due to the complexity of the processes behind the breakwaters (e.g., wave diffraction, currents, longshore transport), detailed modelling needs high computational efforts. Therefore, simplifying the process effect in a simpler coastline model could be efficient. In this study, the coastline evolution model ShorelineS is used. A new routine was implemented in the model to adjust the wave heights and angles behind the offshore breakwaters. Two approaches from the literature and a newly introduced one were tested in this study. The model free grid system was used to simply track the breaker line; such an advantage also helped to form tombolo, which is not common for these types of models. The tests showed promising results for single and multi breakwaters systems; however, the newly introduced approach still needs further testing and refinement for better performance and less computational cost.","Coastline modelling; ShorelineS; Wave diffraction","en","journal article","","","","","","","","","","","Coastal Engineering","","",""
"uuid:a2bbb49d-8642-4a32-b479-4f0091f2d206","http://resolver.tudelft.nl/uuid:a2bbb49d-8642-4a32-b479-4f0091f2d206","On the redistribution and sorting of sand at nourishments: Field evidence and modelling of transport processes and bed composition change","Huisman, B.J.A. (TU Delft Coastal Engineering)","Stive, M.J.F. (promotor); Ruessink, Gerben (promotor); de Schipper, M.A. (copromotor); Delft University of Technology (degree granting institution)","2019","Increasingly large sand nourishments are used for the maintenance of sandy coasts around the world. There is, however, still very limited understanding of their behaviour (i.e. redistribution) and effects on the marine environment. This PhD thesis explores the morphological reshaping of shoreface nourishments (i.e. long bunds of sand placed at the sub-tidal bar with volumes of 1 to 5 million m3) based on data at 19 field sites as well as the reshaping of mega nourishments (i.e. temporary land reclamations) using data of the 'Sand Motor' at the Dutch coast (with a volume of 21 million m3). Considerable cross-shore profile change takes place at shoreface nourishments, consisting of a landward movement of the nourishment crest and erosion of the seaward edge of the nourishment, erosion directly landward of the shoreface nourishment (in the first 100 to 150 m) and some accretion in the inner surfzone (at MSL -2m). Especially the water-level gradient driven currents and onshore transport due to wave skewness are responsible for the morphological change, which could be modelled with Xbeach using a lookup table with initial sedimentation-erosion rates for possible climate conditions. Mega nourishments, on the other hand, reshape predominantly in alongshore direction as a result of the alongshore wave-driven current. Design graphs showing the erosion rates, life span and maintenance volumes were made for the mega nourishments, which can be used for the planning phase of projects. Making a differentiation between the non-rotating foreshore and active surfzone proved to be essential for an accurate representation of the wave-driven alongshore transport in 1D coastline models. Furthermore, the lifetime of the nourishment is related to the sensitivity of the alongshore wave-driven transport to a shoreline rotation, which is affected especially by the wave energy. The recent upscaling of the sand nourishment volume in the last decades (i.e. to Sand Motor scale) and increasing anthropogenic pressure also comes with questions regarding the impact that is made on the natural environment. This thesis investigated the development of the bed sediment composition at the 'Sand Motor' using field measurements and numerical modelling, since bed composition is relevant for marine ecology. Considerable alongshore heterogeneity of the bed composition (D50) was observed as the Sand Motor evolved over time with (1) a coarsening of the lower shoreface of the exposed part of the Sand Motor (+90 to +150 µm) and (2) a deposition area with relatively fine material (50 µm finer) just North and South of the Sand Motor. The alongshore heterogeneity of the D50 is most evident outside the surfzone (i.e. seaward of MSL -4 m), while alongshore variation in D50 was relatively small in the surfzone itself (i.e. landward of MSL -4 m). Preferential erosion of the finer sand fractions takes place during mild to moderate wave conditions, while a reduction of the local armouring of the bed takes place during storms which mobilize all sediment fractions and mix the the top-layer of the bed with the relatively finer substrate. A 3D multi-fraction morphological model gave a good hindcast of 2.5 year of observed spatial and temporal changes in D50 at the Sand Motor, which showed that the coarsening of the bed after construction of the Sand Motor is mainly due to the tidal contraction at the Sand Motor. The currents transport especially the fine grains of the sand mixture, which are more easily suspended than the coarse grains. This difference in suspension behaviour is the main cause of the observed bed composition changes at the lower shoreface. Within the surfzone the difference in suspension behaviour of the size fractions will be smaller, as the energetic conditions can suspend all size fractions. The current findings imply that large-scale bed composition changes can take place at any coastal structure which has a considerable impact on the tidal currents.","Coastal safety; Sand nourishment; Morphology; Bed composition; Sediment sorting; Rip-currents; Numerical modelling","en","doctoral thesis","","978-94-6384-037-8","","","","","","","","","Coastal Engineering","","",""
"uuid:4ed90b9a-3b30-46f1-b18d-b06f3d400114","http://resolver.tudelft.nl/uuid:4ed90b9a-3b30-46f1-b18d-b06f3d400114","De terp van Hogebeintum in boorkernen","Nicolay, Johan (Rijksuniversiteit Groningen; Terpencentrum); de Langen, Gilles (Terpencentrum; Provincie Fryslân; Rijksuniversiteit Groningen); Stöver, Jos (Cultural Heritage Agency of the Netherlands); Aalbersberg, Gerard (Terpencentrum; Agea-advies; Salisbury Archeologie B.V.; Rijksuniversiteit Groningen); Bahlen, Gregory (Student TU Delft); Bakker, Marco (Terpencentrum; Rijksuniversiteit Groningen); Huisman, Hans (Cultural Heritage Agency of the Netherlands); Mantel, Stephan (ISRIC World Soil Information); Ngan-Tillard, D.J.M. (TU Delft Geo-engineering)","Nieuwhof, Annet (editor); Knol, Egge (editor); Nicolay, Johan (editor)","2019","","","en","book chapter","Vereniging voor Terpenonderzoek","","","","","","","","","","Geo-engineering","","",""
"uuid:417447d4-c1a5-472b-95c4-b4000d663b93","http://resolver.tudelft.nl/uuid:417447d4-c1a5-472b-95c4-b4000d663b93","The Impact of Noise in a GRACE/GOCE Global Gravity Model on a Local Quasi-Geoid","Slobbe, D.C. (TU Delft Physical and Space Geodesy); Klees, R. (TU Delft Physical and Space Geodesy); Farahani, H. (Geodätisches Institut, Stuttgart); Huisman, L. (Kadaster); Alberts, Bas (Ministry of Infrastructure and the Environment); Voet, Pierre (Nationaal Geografisch Instituut, Brussel); Doncker, Filip De (Nationaal Geografisch Instituut, Brussel)","","2019","We present a local quasi-geoid (QG) model which combines a satellite-only global gravity model with local data sets using weighted least squares. The QG is computed for an area comprising the Netherlands, Belgium, and the southern North Sea. It uses a two-scale spherical radial basis function model complemented by bias parameters to account for systematic errors in the local gravity data sets. Variance factors are estimated for the noise covariance matrices of all involved data sets using variance component estimation. The standard deviation (SD) of the differences between the computed QG and GPS/leveling data is 0.95 and 1.52 cm for the Netherlands and Belgium, respectively. The fact that the SD of the control data is about 0.60 and 1.20 cm for the Netherlands and Belgium, respectively, points to a lower mean SD of the computed QG model of about 0.7 cm for the Netherlands and 1.0 cm for Belgium. The differences to a QG model computed with the remove-compute-restore technique range from −5.2 to 2.6 cm over the whole model domain and from −1.5 to 1.5 cm over the Netherlands and Belgium. A variogram analysis of the differences with respect to GPS/leveling data reveals a better performance of the computed QG model compared to a remove-compute-restore-based QG model for wavelengths >100 km for Belgium but not for the Netherlands. The latter is due to the fact that at the spatial scales resolved by the global gravity model, variance component estimation assigns significantly lower weights to the local data set in favor of the global gravity model.","geoid; GPS/leveling; satellite-only global gravity model; spherical radial basis functions; weighted least squares","en","journal article","","","","","","","","","","","Physical and Space Geodesy","","",""
"uuid:e6e264d2-f32a-4bbd-9bda-16430d9f5171","http://resolver.tudelft.nl/uuid:e6e264d2-f32a-4bbd-9bda-16430d9f5171","Observations and modelling of shoreface nourishment behaviour","Huisman, B.J.A. (TU Delft Coastal Engineering; Deltares); Walstra, Dirk Jan R. (Deltares); Radermacher, Max (H-max); de Schipper, M.A. (TU Delft Coastal Engineering); Ruessink, B. Gerben (Universiteit Utrecht)","","2019","Shoreface nourishments are commonly applied for coastal maintenance, but their behaviour is not well understood. Bathymetric data of 19 shoreface nourishments located at alongshore uniform sections of the Dutch coast were therefore analyzed and used to validate an efficient method for predicting the erosion of shoreface nourishments. Data shows that considerable cross-shore profile change takes place at a shoreface nourishment, while an impact at the adjacent coast is hard to distinguish. The considered shoreface nourishments provide a long-term (3 to ~30 years) cross-shore supply of sediment to the beach, but with small impact on the local shoreline shape. An efficient modelling approach is presented using a lookup table filled with computed initial erosion-sedimentation rates for a range of potential environmental conditions at a single post-construction bathymetry. Cross-shore transport contributed the majority of the losses from the initial nourishment region. This transport was driven partly by water-level setup driven currents (e.g., rip currents) and increased velocity asymmetry of the waves due to the geometrical change at the shoreface nourishment. Most erosion of the nourishment takes place during energetic wave conditions (Hm0 ≥ 3 m) as milder waves are propagated over the nourishment without breaking. A data-model comparison shows that this approach can be used to accurately assess the erosion rates of shoreface nourishments in the first years after construction.","Erosion; Modelling; Morphology; Sand bar; Shoreface nourishment","en","journal article","","","","","","","","","","","Coastal Engineering","","",""
"uuid:6d98a164-8bc2-4c9c-b17c-b02a64aee277","http://resolver.tudelft.nl/uuid:6d98a164-8bc2-4c9c-b17c-b02a64aee277","The introduction of Corded Ware Culture at a local level: An exploratory study of cultural change during the Late Neolithic of the Dutch West Coast through ceramic technology","Kroon, E.J. (Universiteit Leiden); Huisman, D.J. (Cultural Heritage Agency of the Netherlands); Bourgeois, Q. P.J. (Universiteit Leiden); Braekmans, D. (TU Delft (OLD) MSE-4; Universiteit Leiden; Cranfield University; Katholieke Universiteit Leuven); Fokkens, H. (Universiteit Leiden)","","2019","The introduction of the Corded Ware Culture (3000–2500 BCE) is considered a formative event in Europe's past. Ancient DNA analyses demonstrate that migrations played a crucial role in this event. However, these analyses approach the issue at a supra-regional scale, leaving questions about the regional and local impact of this event unresolved. This study pilots an approach to ceramics that brings this small-scale impact into focus by using the transmission of ceramic technology as a proxy for social change. It draws on ethno-archaeological studies of the effects of social changes on the transmission of ceramic production techniques to hypothesise the impact of three idealised scenarios that archaeologists have proposed for the introduction of Corded Ware Culture: migration, diffusion, and network interactions. Subsequently, it verifies these hypotheses by integrating geochemical (WDXRF), mineralogical (petrography), and macromorphological analysis of ceramics with network analysis. This method is applied to 30 Late Neolithic ceramic vessels from three sites in the western coastal area of the Netherlands (Hazerswoude-Rijndijk N11, Zandwerven, and Voorschoten-De Donk). This study concludes that the introduction of Corded Ware material culture is a process that varies from site to site in the western coastal area of the Netherlands. Moreover, the introduction of the Corded Ware Culture is characterised by continuity in technological traditions throughout the study area, indicating a degree of social continuity despite typological changes in ceramics.","Ceramic technology; Corded Ware Culture; Cultural transition; Transmission of technology; Vlaardingen Culture","en","journal article","","","","","","","","","","","(OLD) MSE-4","","",""
"uuid:bca7efc4-0662-465f-87d6-0280e32aa75c","http://resolver.tudelft.nl/uuid:bca7efc4-0662-465f-87d6-0280e32aa75c","Behaviour of subtidal sandbars in response to nourishments","Radermacher, M. (TU Delft Coastal Engineering; WaveDroid); de Schipper, M.A. (TU Delft Coastal Engineering; Shore Monitoring & Research); Price, Timothy (Universiteit Utrecht); Huisman, B.J.A. (TU Delft Coastal Engineering; Deltares); Aarninkhof, S.G.J. (TU Delft Coastal Engineering); Reniers, A.J.H.M. (TU Delft Environmental Fluid Mechanics)","","2018","The behaviour of subtidal sandbars can be strongly influenced by the introduction of sand nourishments in the coastal system. This study focuses on the impact of nourishments on subtidal bar behaviour at spatio-temporal scales beyond a single nourishment project. It aims to determine the long-term behaviour of subtidal sandbars along an entire coastal cell, taking into account both the unnourished and nourished regime, and covering various types of nourishments. The analysis is based on over 50 years of sandbar evolution along the Delfland coast, a 17-km long coastal cell at the Dutch North Sea coastline protected by groynes and maintained with frequent sand nourishments. Observations reveal clearly different sandbar behaviour during the unnourished (first 20 years) and nourished periods of the dataset. Introduction of the first beach nourishments (nourished sand primarily placed at the subaerial beach) was found to stimulate sandbar development along previously unbarred sections of the coast. Shoreface nourishments (nourished sand placed at the seaward face of the pre-existing subtidal sandbar) tended to migrate shoreward rapidly at a rate of 20 to 60 m/year at this coast, thereby forcing the pre-existing sandbar to weld to the dry beach. An abrupt transition of sandbar dynamics was observed following a major nourishment operation (∼ 37.5 Mm3 of nourished sand) that covered the entire coastal cell. A new, shallow sandbar formed with a degree of alongshore variability that was unprecedented at the Delfland coast over the full study period. These results imply that individual nourishments can influence the formation and migration of individual sandbars, while continued nourishments can fundamentally change long-term sandbar dynamics along an entire coastal cell.","sand nourishment; nearshore sandbars; sand motor; alongshore variability","en","journal article","","","","","","Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.","","2018-10-15","","","Coastal Engineering","","",""
"uuid:51d31925-842a-483b-bf22-fe60c9c7f239","http://resolver.tudelft.nl/uuid:51d31925-842a-483b-bf22-fe60c9c7f239","Modelling of bed sediment composition changes at the lower shoreface of the Sand Motor","Huisman, B.J.A. (TU Delft Coastal Engineering; Deltares); Ruessink, B. G. (Universiteit Utrecht); de Schipper, M.A. (TU Delft Coastal Engineering; Shore Monitoring & Research); Luijendijk, Arjen (TU Delft Coastal Engineering; Deltares); Stive, M.J.F. (TU Delft Coastal Engineering)","","2018","Large perturbations in the coastline, such as the 'Sand Motor' nourishment (∼21 million m3) at the Holland coast, can initiate considerable spatial and temporal changes in the median grain size (D50) of the sea bed on the lower shoreface. The relevance of hydrodynamic conditions for the development of the heterogeneity in D50 at large-scale nourishments was assessed with a numerical model (Delft3D), which required a validation against 2.5 years of D50 measurements. A good representation of the observed spatial pattern of D50 was obtained independent of a 2DH or 3D approach and initial condition for the D50 of the bed. Five sediment size fractions and a multi-layer administration of the bed composition were used. The extent and magnitude of the coarsening of the bed is related to the velocity of the horizontal tide, while a far less pronounced coarsening takes place during energetic conditions (i.e. Hm0≥ 3 m). Differential suspension behaviour between the size fractions, which are all mobilized at the bed, causes a preferential transport of fine sediment (in alongshore direction) away from the Sand Motor at the lower shoreface (i.e. seaward of MSL -6 m). Storm conditions may induce a partial removal of the coarse top-layer due to mobilization of all of the size fractions and mixing with the relatively fine substrate material. Simulations also show that transport of the fine sand fraction extents to much deeper water than for the medium and coarse sand fractions. Models with multiple sediment fractions are therefore required for the assessment of environmental impacts of large-scale coastal structures or land reclamation's and sediment transport on the lower shoreface.","Bed sediment; Grain size; Nourishment; Numerical modelling; Sorting","en","journal article","","","","","","","","2019-11-23","","","Coastal Engineering","","",""
"uuid:25aabae7-d1cc-4042-88de-28f2c2151e04","http://resolver.tudelft.nl/uuid:25aabae7-d1cc-4042-88de-28f2c2151e04","Fluorescence Polarization Control for On-Off Switching of Single Molecules at Cryogenic Temperatures","Hulleman, C.N. (TU Delft ImPhys/Computational Imaging); Huisman, Maximiliaan (University of Massachusetts Medical School); Moerland, R.J. (TU Delft ImPhys/Quantitative Imaging); Gruenwald, David (University of Massachusetts Medical School); Stallinga, S. (TU Delft ImPhys/Imaging Physics); Rieger, B. (TU Delft ImPhys/Quantitative Imaging)","","2018","Light microscopy, allowing sub-diffraction-limited resolution, has been among the fastest developing techniques at the interface of biology, chemistry, and physics. Intriguingly no theoretical limit exists on how far the underlying measurement uncertainty can be lowered. In particular data fusion of large amounts of images can reduce the measurement error to match the reso-lution of structural methods like cryo-electron microscopy. Fluorescence, although reliant on a reporter molecule and therefore not the first choice to obtain ultraresolution structures, brings highly specific labeling of molecules in a large assembly to the table and inherently allows the detection of multiple colors, which enables the interrogation of multiple molecular species at the same time in the same sample. Here, the problems to be solved in the coming years, with the aim of higher resolution, are discussed, and what polarization depletion of fluorescence at cryogenic temperatures can contribute for fluorescence imaging of biological samples, like whole cells, is described.","cryogenic; polarization; single molecules; STED; super-resolution","en","journal article","","","","","","Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.","","2018-10-30","","ImPhys/Imaging Physics","ImPhys/Computational Imaging","","",""
"uuid:49959335-2d65-49d7-98f3-4539c9810da4","http://resolver.tudelft.nl/uuid:49959335-2d65-49d7-98f3-4539c9810da4","Reconfiguring a New Normal: A Socio-Ecological Perspective for Design Innovation in Sensitive Settings","D'Olivo, P. (TU Delft Human Information Communication Design); Rozendaal, M.C. (TU Delft Human Information Communication Design); Giaccardi, Elisa (TU Delft Human Information Communication Design; Umeå University); Grootenhuis, Martha A. (Princess Máxima Center for Pediatric Oncology; Amsterdam UMC); Huisman, Jaap (Princess Máxima Center for Pediatric Oncology)","","2018","What can design do to address adverse life events like childhood cancer? Cancer is not just a health matter—it strains family relationships and profoundly disrupts the stability of everyday routines. In this article, we introduce a socio-ecological perspective that untangles the systemic complexity of the challenges families face when confronted with childhood cancer. We use this lens to identify potential design opportunities for reconfiguring a “new normal” in their lives. We present and discuss the results of a participant observation of childhood cancer survivors at a large support group conference. These findings we analyze and organize into five themes corresponding to specific coping strategies: accepting the transformation of one’s body, avoiding avoidance, maintaining interest in social activities, retaining a sense of belonging to one’s social networks, and dealing with social stigma. These themes reveal opportunities for design innovation in sensitive settings that traverse the fields of interaction design, developmental psychology, and pediatric oncology.","Childhood cancer; Family life; Disruptive life events; New normal; Design innovation; Sensitive settings","en","journal article","","","","","","","","","","","Human Information Communication Design","","",""
"uuid:b725def5-78cf-4e10-af2f-2ea42dff6b10","http://resolver.tudelft.nl/uuid:b725def5-78cf-4e10-af2f-2ea42dff6b10","Een dubbele ver(r)assing: Smeltkroesjes uit de Ijzertijd uit Tilburg Sportcomplex Spoordijk","Huisman, Hans (Cultural Heritage Agency of the Netherlands); Bach, Alicia (Student TU Delft); Joosten, Ineke (Universiteit van Amsterdam; Cultural Heritage Agency of the Netherlands); Ngan-Tillard, D.J.M. (TU Delft Geo-engineering); van den Eynde, Guido (Cultural Heritage Agency of the Netherlands)","","2018","Het was toeval. De archeologische begeleiding van de uitbreiding van het Tilburgse sportcomplex Spoordijk had slechts enkele sporen en vondsten uit de ijzertijd opgeleverd en was afgesloten. Frans van Nuenen, vrijwilliger in de archeologie, inspecteerde na afloop van de werkzaamheden echter nog eenmaal het terrein en vond in het talud van een nieuwe waterpartij een grote, zwarte vlek. De gemeente pakte de waarneming meteen op en liet een kleinschalige opgraving uitvoeren om de kuil te documenteren en de vondsten te bergen (afbeelding 1). Het bleek om een flinke kuil te gaan, vol met houtskool en prehistorisch aardewerk. Een 14C-datering van verkoolde zaden maakt duidelijk dat de kuil stamt uit de tweede helft van de vijfde eeuw voor Chr. Vorm en versiering van het aardewerk uit de kuil onderstrepen deze datering in de midden-ijzertijd. Tussen het vondstmateriaal werd een aantal opvallende en onbekende voorwerpen aangetroffen: complete en gebroken, eivormige, holle objecten met een klein gat in de punt en een verglaasde buitenkant. Wat zijn dit?","","en","book chapter","uitgever Pronk Producties","","","","","","","","","","Geo-engineering","","",""
"uuid:18d519e6-c894-4124-9710-4dc6887ac324","http://resolver.tudelft.nl/uuid:18d519e6-c894-4124-9710-4dc6887ac324","A Next Step in Disruption Management: Combining Operations Research and Complexity Science","Dekker, Mark M. (Universiteit Utrecht); van Lieshout, Rolf N. (Erasmus Universiteit Rotterdam); Ball, Robin C. (University of Warwick); Bouman, Paul C. (Erasmus Universiteit Rotterdam); Dekker, Stefan C. (Universiteit Utrecht); Dijkstra, Henk A. (Universiteit Utrecht); Goverde, R.M.P. (TU Delft Transport and Planning); Huisman, Dennis (N.V. Nederlandse Spoorwegen; Erasmus Universiteit Rotterdam); Panja, Deb (Universiteit Utrecht); Schaafsma, Alfons A.M. (ProRail); van den Akker, Marjan (Universiteit Utrecht)","","2018","Railway systems occasionally get into a state of out-of-control, meaning that there is barely any train is running, even though the required resources (infrastructure, rolling stock and crew) are available. These situations can either be caused by large disruptions or unexpected propagation and accumulation of delays. Because of the large number of affected resources and the absence of detailed, timely and accurate information, currently existing methods cannot be applied in out-of-control situations. Most of the contemporary approaches assume that there is only one single disruption with a known duration, that all information about the resources is available, and that all stakeholders in the operations act as expected. Another limitation is the lack of knowledge about why and how disruptions accumulate and whether this process can be predicted. To tackle these problems, we develop a multidisciplinary framework aiming at reducing the impact of these situations and - if possible - avoiding them. The key elements of this framework are (i) the generation of early warning signals for out-of-control situations using tools from complexity science and (ii) a set of rescheduling measures robust against the features of out-of-control situations, using tools from operations research.
50, was investigated at a large-scale nourishment (The ‘Sand Motor’) at the Dutch coast (∼21.5 million m3 sand). Considerable alongshore heterogeneity of the bed composition (D50) was observed as the Sand Motor evolved over time with (1) coarsening of the exposed part of the Sand Motor (+90 to +150 μm) and (2) a depositional area with relatively fine material (50 μm finer) just North and South of the Sand Motor. The alongshore heterogeneity of the measured D50 values was most evident outside the surfzone (i.e. seaward of MSL −4 m). Coarsening of the bed after construction of the Sand Motor was attributed to hydrodynamic sorting processes, because the alongshore heterogeneity of the D50 showed a similar spatial pattern as the mean bed shear stresses. The observed alongshore heterogeneity of the D50 and correlation of D50 with modelled mean bed shear stresses suggest that preferential erosion of the finer sand fractions has taken place. The selective transport of finer sand fractions results in a coarser top layer of the bed at the Sand Motor. The preferential transport is most dominant during mild and moderate conditions when hydrodynamic forcing conditions are close to the critical bed shear stresses for transport. The measurements also show the impact of a storm, which consists of a ∼40 μm finer D50 of the offshore bed composition in front of the Sand Motor (i.e. where a considerably coarser bed was in place). Additionally, storms may generate a (temporary) zone with fine bed material at the toe of the deposition profile. This means that the coarsening of the bed is reduced by storms as a result of the mobilization of both coarse and fine sediment and mixing of the bed with the relatively finer substrate.","Alongshore heterogeneity; Bed sediment; Morphology; Nourishment; Sorting","en","journal article","","","","","","","","2018-11-01","","","Coastal Engineering","","",""
"uuid:3c810cc3-bac6-46af-b882-d7595a45595c","http://resolver.tudelft.nl/uuid:3c810cc3-bac6-46af-b882-d7595a45595c","High-Performance Motion Control of the METIS Cold Chopper Mechanism","Huisman, Robert (SRON Netherlands Institute for Space Research); Paalvast, Sander (Janssen Precision Engineering); Brandl, B.R. (TU Delft Astrodynamics & Space Missions; Universiteit Leiden); Van Den Dool, Teun (TNO); Eggens, Martin (SRON Netherlands Institute for Space Research); Janssen, Huub (Janssen Precision Engineering); Aitink-Kroes, Gabby (NOVA); Molster, Frank (NOVA); Teuwen, Maurice (Janssen Precision Engineering); Venema, Lars (Netherlands Institute for Radio Astronomy (ASTRON)); Jayawardhana, Bayu (University Medical Center Groningen)","","2016","We present the main results of the performance test campaign of the Mid-Infrared European Extremely Large Telescope Imager and Spectrograph (METIS) Cold Chopper Demonstrator (MCCD). This tip/tilt mirror, which operates at a temperature of 77 K, is one of the critical components in the METIS for the European Extremely Large Telescope. The performance requirements of the MCCD relate to the field of fast and very accurate reference tracking. We discuss the applicability of different high-performance motion control strategies and describe the control synthesis of a repetitive and of a novel hybrid controller. We identified the presence of nonlinearities in the plant, which limits the performance of the hybrid controller. The repetitive controller shows very promising results and can handle the nonlinearities in the system. This experimental phase concludes the MCCD program, which was initiated to verify the feasibility of a high-performance cryogenic tip/tilt mirror at an early stage in the METIS development. Because of the very promising test results, no significant changes to the hardware will be implemented. We believe that minor adjustments will suffice to meet all requirements of the final hardware after integration with the METIS instrument.","Control synthesis; high-performance motion control; hybrid control; hysteresis; repetitive control; tip/tilt mechanism","en","journal article","","","","","","","","","","","Astrodynamics & Space Missions","","",""
"uuid:51e6cd5e-e77c-4bc7-abad-4b0c9d290c08","http://resolver.tudelft.nl/uuid:51e6cd5e-e77c-4bc7-abad-4b0c9d290c08","Pan-cancer subtyping in a 2D-map shows substructures that are driven by specific combinations of molecular characteristics","Taskesen, E. (TU Delft Pattern Recognition and Bioinformatics); Huisman, S.M.H. (TU Delft Pattern Recognition and Bioinformatics); Mahfouz, A.M.E.T.A. (TU Delft Pattern Recognition and Bioinformatics); Krijthe, J.H. (TU Delft Pattern Recognition and Bioinformatics); de Ridder, J. (TU Delft Pattern Recognition and Bioinformatics); van de Stolpe, A.; van den Akker, E.B. (TU Delft Pattern Recognition and Bioinformatics); Verhaegh, Wim (Philips Research); Reinders, M.J.T. (TU Delft Pattern Recognition and Bioinformatics)","","2016","The use of genome-wide data in cancer research, for the identification of groups of patients with similar molecular characteristics, has become a standard approach for applications in therapy-response, prognosis-prediction, and drug-development. To progress in these applications, the trend is to move from single genome-wide measurements in a single cancer-type towards measuring several different molecular characteristics across multiple cancer-types. Although current approaches shed light on molecular characteristics of various cancer-types, detailed relationships between patients within cancer clusters are unclear. We propose a novel multi-omic integration approach that exploits the joint behavior of the different molecular characteristics, supports visual exploration of the data by a two-dimensional landscape, and inspection of the contribution of the different genome-wide data-types. We integrated 4,434 samples across 19 cancer-types, derived from TCGA, containing gene expression, DNA-methylation, copy-number variation and microRNA expression data. Cluster analysis revealed 18 clusters, where three clusters showed a complex collection of cancer-types, squamous-cell-carcinoma, colorectal cancers, and a novel grouping of kidney-cancers. Sixty-four samples were identified outside their tissue-of-origin cluster. Known and novel patient subgroups were detected for Acute Myeloid Leukemia’s, and breast cancers. Quantification of the contributions of the different molecular types showed that substructures are driven by specific (combinations of) molecular characteristics.","Cancer; Data integration; Data mining; Functional clustering; OA-Fund TU Delft","en","journal article","","","","","","Concerning DOI 10.1038/s41598-018-35518-w:This Article contains a typographical error in the spelling of the author Wim Verhaegh, which is incorrectly given as Wim Verheagh. Correct version has been uploaded","","","","","Pattern Recognition and Bioinformatics","","",""
"uuid:0bb45862-ad9a-4114-9abc-4c47ba727617","http://resolver.tudelft.nl/uuid:0bb45862-ad9a-4114-9abc-4c47ba727617","Interpreting a migraine GWAS using gene expression in healthy human brain","Huisman, S.M.H. (TU Delft Pattern Recognition and Bioinformatics; Leiden University Medical Center); Eising, E (Leiden University Medical Center); Mahfouz, A.M.E.T.A. (TU Delft Pattern Recognition and Bioinformatics; Leiden University Medical Center); Vijfhuizen, L.S. (Leiden University Medical Center); Lelieveldt, B.P.F. (TU Delft Pattern Recognition and Bioinformatics); van den Maagdenberg, AMJM (Leiden University Medical Center); Reinders, M.J.T. (TU Delft Pattern Recognition and Bioinformatics)","","2016","Migraine is a common brain disorder, with a heritability of 50%. Genome-wide association studies have identified several loci, but interpretation remains challenging. We integrated migraine GWAS data with spatial gene expression data of adult brains from the Allen Human Brain Atlas, to identify specific brain regions and molecular pathways involved in migraine.
We used two complementary methods. First, we clustered all genes into co-expression modules and identified those associated with migraine. Second, we constructed local co-expression networks around high-confidence migraine genes.
Both approaches converge on functions and anatomy.","","en","poster","","","","","","","","","","","Pattern Recognition and Bioinformatics","","",""
"uuid:6feb1e7e-b627-484e-a71f-2e06251a3271","http://resolver.tudelft.nl/uuid:6feb1e7e-b627-484e-a71f-2e06251a3271","Curly malachite on archaeological bronze: A systematic study of the shape and phenomenological approach of its formation mechanism","van der Stok-Nienhuis, J. (TU Delft (OLD) MSE-4; Cultural Heritage Agency of the Netherlands); Robbiola, Luc (Université de Toulouse); Giuliani, Roberta (University of Bologna); Joosten, Ineke (Cultural Heritage Agency of the Netherlands); Huisman, Hans (Cultural Heritage Agency of the Netherlands); van Os, Bertil (Cultural Heritage Agency of the Netherlands); Sietsma, J. (TU Delft (OLD) MSE-3)","","2016","Curly malachite (CM) is found as a green cupric carbonate hydroxide corrosion product on archaeological bronze, mostly on artefacts retrieved from graves. In this paper, a morphological characterization approach is proposed, enabling the investigation of the formation process of CM. It is suggested that curly malachite precipitates from an aqueous solution, for which the surrounding soil conditions provide local triggers. Anthropic activities associated with ritual burials do not significantly affect the growth of CM. It is also confirmed that curly malachite is usually not a pseudomorph of formerly organic material. Although the understanding of the formation process is far from complete, this study has shown that CM is expected to be found more often than is currently recognized, due to its relatively simple formation mechanisms and boundary conditions.","curly malachite; archaeological bronze; corrosion; nucleation and growth; morphology; pseudomorph","en","journal article","","","","","","","","","","","(OLD) MSE-4","","",""
"uuid:77829805-74a7-4265-beec-9fbed42f642e","http://resolver.tudelft.nl/uuid:77829805-74a7-4265-beec-9fbed42f642e","Software that meets its intent","Huisman, M. (University of Twente); Bos, Herbert (Vrije Universiteit Amsterdam); Brinkkemper, Sjaak (Universiteit Utrecht); van Deursen, A. (TU Delft Software Technology); Groote, Jan Friso (Eindhoven University of Technology); Lago, Patricia (Vrije Universiteit Amsterdam); van de Pol, Jaco (University of Twente); Visser, Eelco (TU Delft Programming Languages)","Margaria, T. (editor); Steffen, B. (editor)","2016","Software is widely used, and society increasingly depends on its reliability. However, software has become so complex and it evolves so quickly that we fail to keep it under control. Therefore, we propose intents: fundamental laws that capture a software systems’ intended behavior (resilient, secure, safe, sustainable, etc.). The realization of this idea requires novel theories, algorithms, tools, and techniques to discover, express, verify, and evolve software intents. Thus, future software systems will be able to verify themselves that they meet their intents. Moreover, they will be able to respond to deviations from intents through selfcorrection. In this article we propose a research agenda, outlining which novel theories, algorithms and tools are required.","","en","conference paper","Springer","","","","","","","","","Software Technology","Programming Languages","","",""
"uuid:ab7e8ede-e50e-4437-bcc7-931337b6dce2","http://resolver.tudelft.nl/uuid:ab7e8ede-e50e-4437-bcc7-931337b6dce2","Studying the past, understanding the present, predicting the future - analysis of corrosion systems in soil surrounding buried ancient metal (abstract)","Afanasyev, M.; Huisman, H.; Van Paassen, L.A.; Heimovaara, T.J.","","2015","","","en","conference paper","TU Delft","","","","","","","","Civil Engineering and Geosciences","Geoscience & Engineering","","","",""
"uuid:17b066b0-0957-4ef5-bd1c-d90a26d5da52","http://resolver.tudelft.nl/uuid:17b066b0-0957-4ef5-bd1c-d90a26d5da52","Measurements of small radius ratio turbulent Taylor-Couette flow","Van der Veen, R.; Huisman, S.; Merbold, S.; Sun, C.; Harlander, U.; Egbers, C.; Lohse, D.","Van der Veen, R. (author); Huisman, S. (author); Merbold, S. (author); Sun, C. (author); Harlander, U. (author); Egbers, C. (author); Lohse, D. (author)","2015","In Taylor-Couette flow, the radius ratio ($\eta = r_i/r_o$) is one of the key parameters of the system. For small $\eta$, the asymmetry of the inner and outer boundary layer becomes more important, affecting the general flow structure and boundary layer characteristics. Using high-resolution particle image velocimetry we measure flow profiles for a radius ratio of 0.5 and Taylor number of up to $6.2\cdot10^9$. By measuring at varying heights, roll structures are characterized for two different rotation ratios of the inner and outer cylinder. In addition, we investigate how the turbulent bursts coming from the inner and outer cylinder affect the flow profiles. These results exemplify how curvature affects flow in strongly turbulent Taylor-Couette Flow.","","en","conference paper","","","","","","","","","","","","","",""
"uuid:dec3de14-d2d3-4eee-8cb8-6143f6eb2ff3","http://resolver.tudelft.nl/uuid:dec3de14-d2d3-4eee-8cb8-6143f6eb2ff3","Bulk statistics of stable and decaying Taylor-Couette turbulence","Huisman, S.; Verschoof, R.; Van der Veen, R.; Sun, C.; Lohse, D.","Huisman, S. (author); Verschoof, R. (author); Van der Veen, R. (author); Sun, C. (author); Lohse, D. (author)","2015","In this talk we focus on the velocity fluctuations in highly turbulent Taylor-Couette flow for the case of stable flow (constant rotation) and for decaying flow. Turbulent flows are generally characterized by the range of scales of their fluctuations, and a statistical description of the flow is often done by calculating the correlations of velocity fluctuations. These correlations are found to behave like power-laws over a range of scales, and their exponents characterize a certain geometry of flow. Many systems have been investigated carefully: Pipe-flow, Von Kármán flow, Rayleigh Bénard convection, \textit{et cetera}. There are, however, few reports \cite{lew99,she01} quantifying the turbulent properties in Taylor-Couette flow. In the presented work \cite{huisman2013b} we measure the longitudinal structure functions using laser Doppler anemometry, which is a non-intrusive technique and is able to measure the components of the velocity, and thus ideal for obtaining structure functions and the local velocity. We present the statistics of the turbulent velocity fluctuations for counter rotation for varying $a=-\omega_o/\omega_i$.","","en","conference paper","","","","","","","","","","","","","",""
"uuid:e5718860-beb2-4cfb-96b1-acd535c7946e","http://resolver.tudelft.nl/uuid:e5718860-beb2-4cfb-96b1-acd535c7946e","Integrated Decision Support Tools for Disruption Management","Besinovic, N.; Cacchiani, V.; Dollevoet, T.; Goverde, R.M.P.; Huisman, D.; Kidd, M.P.; Kroon, L.G.; Quaglietta, E.; Rodriguez, J.; Toth, P.; Veelenturf, L.; Wagenaar, J.","","2015","During railway operations unexpected events can require railway operators and infrastructure managers to adjust their schedules. In this research we investigate the disruption management process. More specifically, we come up with an architecture and algorithmic framework which railway operators could use for decision support during disruptions. The use of this framework results in a fully feasible timetable, rolling stock plan, and crew schedule to deal with the disruption, while minimizing the number of delayed and/or (partially) cancelled trains. We demonstrate the effectiveness of our framework on a disruption case on the Dutch Railway network, which is introduced within the EU FP7 project ON-TIME.","disruption management; railway operations; algorithmic framework; rescheduling","en","conference paper","","","","","","","","","Civil Engineering and Geosciences","Transport & Planning","","","",""
"uuid:80628915-8322-4f2f-8196-348bfb92c34d","http://resolver.tudelft.nl/uuid:80628915-8322-4f2f-8196-348bfb92c34d","Greenelec: Product design linked to recycling","Balkenende, R.; Occhionorelli, V.; Van Meensel, W.; Felix, J.; Sjölin, S.; Aerts, M.; Huisman, J.; Becker, J.; Van Schaik, A.; Reuter, M.","","2014","GreenElec aims to significantly improve on the resource efficiency of electronics and electronic products. This is accomplished by close cooperation between manufacturers and recyclers. Design guidelines for improved recycling have been formulated and products (lamps and displays) have been redesigned according to these guidelines. Interestingly, design for recycling could easily be combined with value engineering. The improved recyclability has been validated in recycling runs. Further, tools are available to evaluate the choices made regarding materials and connections at various stages of the design process. As benefits are not evenly distributed over the value chain, business aspects are explicitly taken into account.","","en","conference paper","","","","","","","","","Industrial Design Engineering","Design Engineering","","","",""
"uuid:e8921b7d-f463-4f7a-a729-50f7a622834a","http://resolver.tudelft.nl/uuid:e8921b7d-f463-4f7a-a729-50f7a622834a","Visualizing the spatial gene expression organization in the brain through non-linear similarity embeddings","Mahfouz, A.M.E.T.A.; Van de Giessen, M.; Van der Maaten, L.J.P.; Huisman, S.M.H.; Reinders, M.J.T.; Hawrylycz, M.J.; Lelieveldt, B.P.F.","","2014","The Allen Brain Atlases enable the study of spatially resolved, genome-wide gene expression patterns across the mammalian brain. Several explorative studies have applied linear dimensionality reduction methods such as Principal Component Analysis (PCA) and classical Multi-Dimensional Scaling (cMDS) to gain insight into the spatial organization of these expression patterns. In this paper, we describe a non-linear embedding technique called Barnes-Hut Stochastic Neighbor Embedding (BH-SNE) that emphasizes the local similarity structure of high-dimensional data points. By applying BH-SNE to the gene expression data from the Allen Brain Atlases, we demonstrate the consistency of the 2D, non-linear embedding of the sagittal and coronal mouse brain atlases, and across 6 human brains. In addition, we quantitatively show that BH-SNE maps are superior in their separation of neuroanatomical regions in comparison to PCA and cMDS. Finally, we assess the effect of higher-order principal components on the global structure of the BH-SNE similarity maps. Based on our observations, we conclude that BH-SNE maps with or without prior dimensionality reduction (based on PCA) provide comprehensive and intuitive insights in both the local and global spatial transcriptome structure of the human and mouse Allen Brain Atlases.","Allen Brain Atlas; spatial-mapped gene expression; brain transcriptome structure; dimensionality reduction; Stochastic Neighbor Embedding","en","journal article","Elsevier","","","","","","","","Electrical Engineering, Mathematics and Computer Science","Intelligent Systems","","","",""
"uuid:45bbf5f4-3691-42bf-a7ce-22d5020686ed","http://resolver.tudelft.nl/uuid:45bbf5f4-3691-42bf-a7ce-22d5020686ed","Flexibility and decoupling in the simple temporal problem (abstract)","Wilson, M.; Klos, T.B.; Witteveen, C.; Huisman, B.","","2013","","","en","conference paper","","","","","","","","","","","","","",""
"uuid:197e9408-6c08-4c8f-8b66-f4acf2180e9e","http://resolver.tudelft.nl/uuid:197e9408-6c08-4c8f-8b66-f4acf2180e9e","Flexibility and Decoupling in the Simple Temporal Problem (abstract)","Wilson, M.; Klos, T.B.; Witteveen, C.; Huisman, B.","","2013","","","en","conference paper","","","","","","","","","Electrical Engineering, Mathematics and Computer Science","Software Computer Technology","","","",""
"uuid:02aa1ea8-76a1-4308-ab6c-eb2a7fd28f53","http://resolver.tudelft.nl/uuid:02aa1ea8-76a1-4308-ab6c-eb2a7fd28f53","Overstap van RD naar ETRS89: Kans of dreiging?","Broekman, R.; Dorst, L.; Huisman, L.; Stoter, J.","","2013","De voortgaande digitalisering en globalisering hebben ertoe geleid dat steeds vaker hardop de vraag wordt gesteld of Nederland voor de opslag en uitwisseling van gegevens zou moeten overstappen van het nationale RD-stelsel naar het meer internationaal georiënteerde ETRS89.","","en","journal article","Geo Informatie Nederland","","","","","","","","OTB Research Institute for the Built Environment","OTB Research","","","",""
"uuid:b7ceb38f-0209-4df2-9b5f-383c1f250916","http://resolver.tudelft.nl/uuid:b7ceb38f-0209-4df2-9b5f-383c1f250916","Advection and diffusion of shore-attached sand nourishments","Huisman, B.J.A.; Van Thiel De Vries, J.S.M.; Walstra, D.J.R.; Roelvink, J.A.; Ranasinghe, R.W.M.R.J.B.; Stive, M.J.F.","","2013","Understanding of the behaviour of coastline perturbations at soft-coastlines is essential for modelling coastal evolution at decadal time scales. Many coastline models do, for example, implicitly assume dominant diffusive behaviour of coastline features. The validity of this assumption is investigated for the Dutch coast on the basis of data on coastline perturbations. Bathymetrical data for a number of nourishments were used to assess the relative importance of diffusion with respect to advection of the sediment along the coast. For this purpose, the volume of sediment is computed for cross-shore transects along the coast. The alongshore distribution of this sediment over time (as a result of dispersion by waves and currents) is then analysed by means of simple shape parameters: a mean alongshore position and standard deviation of the nourishment sand from the centre. Next, the nourishments were also characterized with an advective and diffusive parameter by fitting of an advection-diffusion equation. These parameters then give a classification of the nourishment behaviour. It was found that the behaviour of nourishments at the Dutch coast is dominated by diffusive processes, while advective processes have some influence on the alongshore transport in the shallow part of the surfzone for smaller nourishments.","coastal morphology; non-linear coastline response; advection-diffusion; nourishments","en","conference paper","Bordeaux University","","","","","","","","Civil Engineering and Geosciences","Hydraulic Engineering","","","",""
"uuid:7560c07e-795c-4d6d-9ff3-1bd45f59848d","http://resolver.tudelft.nl/uuid:7560c07e-795c-4d6d-9ff3-1bd45f59848d","Coastline modelling for nourishment strategy evaluation","Huisman, B.J.A.; Wang, Z.B.; De Ronde, J.G.; Stronkhorst, J.; Sprengers, C.J.","","2013","Coastal zone managers in the Netherlands require new dedicated tools for the assessment of the long-term impacts of coastal maintenance policies. The policies need to be evaluated on the impacts on multiple coastal functions in order to be able to optimize the performance of such strategies. This paper provides the technical backgrounds of such a model. A combined approach with a modified Pelnard-Considere (1956) coastline model and an ASMITA model (Stive & Wang, 2003) was used for this purpose.","","en","conference paper","","","","","","","","","Civil Engineering and Geosciences","Hydraulic Engineering","","","",""
"uuid:f19caa44-36e2-4613-b7e0-36409959f01a","http://resolver.tudelft.nl/uuid:f19caa44-36e2-4613-b7e0-36409959f01a","Servicing the Arctic. Report 3: Design of an Arctic Offshore Supply Vessel (AMTSV)","Bos, R.W.; Huisman, T.J.; Obers, M.P.W.; Schaap, T.; Van der Zalm, M.","","2013","Background To design a ship its specific design requirements are to be known. These are, together with class notations, specified in previous reports and extended in this report. Since the requirements are formed iteratively, design freedom is possible. This is used to implement several innovations into the design which improve the performance of the vessel. The vessel is designed for worldwide operations to support offshore installations, in open waters and first year ice. Results The vessel is built with regards to a good performance in open water and ice, safe transportation of cargo and safe working conditions for the crew. The hull of the ship is designed with three operational modes in mind. An open water bow for low resistance in open water, an ice bow to allow good performance in ice and both are designed to reduce slamming during dynamic positioning operations. Installation of two Azipod thrusters gives good maneuverability with little compromise on performance in ice or open water. Four engines with three different sizes make sure the power supply meets the requirement, minimizing energy losses due to overcapacity. To meet strict environmental laws the ship is able to use LNG as fuel and therefore does not exhaust SOx. Besides that fuel oil can be used in less strict areas. The hold is filled with tanks for dry bulk and liquid mud, meeting the average for this size of vessel. Winterization is achieved by the extended superstructure (ESS) which protects crew, cargo and even survivors from an oil rig catastrophe from the environment. As the market changes, the demands for ships change. The modular container hold allows for extra tanks, pumps and engines to be placed, adapting the ship to owner needs. Even towing is possible, and might even be necessary when performing ice management. There are however some design choices that require attention. The ESS, in combination with the LNG tanks, limits the line of sight from the bridge. Helicopter landing facilities should be provided, but are hard to achieve when the main deck is full of cargo. Because the ship has to sail through ice, a great power is installed, but not necessarily used.","AMTSV; Arctic Minor; TopTrack; Arctic Offshore Supply Vessel; Concept Design; LNG; ice; double acting hull; waste heat managment; modular; paint arrangement; Extended Super Structure; TU Delft; Aalto University; Damen Shipyards; MARIN; DNV","en","report","","","","","","","","","Mechanical, Maritime and Materials Engineering","Martitime Technology","","","",""
"uuid:e894b3b2-d6be-4ebc-9488-f697c2d90acd","http://resolver.tudelft.nl/uuid:e894b3b2-d6be-4ebc-9488-f697c2d90acd","Servicing the Arctic. Report 2: Evaluation of Damen Concepts in Arctic Conditions: Concepts Survey","Bos, R.W.; Huisman, T.J.; Obers, M.P.W.; Schaap, T.; Van der Zalm, M.","","2013","Background At the start of a design it is often good to look at comparable designs. What choices were made, what are the operations, what equipment is used? This report looks at three Damen ships, which are already capable of offshore support. These vessels are designed for open water. Looking just at what has to improve for operating in the Arctic will give a feeling for the design of such vessels. The recommendations are taken into account in the next report, where a concept design of an Arctic Offshore Support Vessel will be developed. Results There are two operational profiles per vessel. One is the original operational profile and the other one is about the same operations but then in ice. The operational profiles are used for calculating an indication of fuel consumption. The ships themselves are tested on winterization, resistance, propulsion, construction and stability. This is done according to rules and guidelines available. For the resistance prediction the Lindqvist and Riska formulae are used. Winterization of the ships is very well possible, because the superstructure that is in place is already providing cover. The working and safety areas that are still outside have to be enclosed and the equipment that is on deck will have to be winterized. The resistance of the ships can only be determined with Riska, due to the fact that the bow angles are not intended for icebreaking. This results in a negative crushing component with Lindqvist. A high resistance is the result for the three vessels, leading to a high required propulsion power, around 30 MW. This is rather high compared to similar vessel, Vitus Bering, which requires 13 MW for the same speed and ice thickness. Sailing backwards through the ice could be an option to decrease this power requirement. There are relatively minor adaptions required to do so. Looking at the construction, a ice strengthening has to be applied to the hull. Dependent on the class notation and location around the hull, the steel thickness ranges from 20 - 80 mm. This is considerably thicker than the more common 15 mm. The general layout of the ship gives good stability, and meets any requirement on this subject. Conclusions Optimizing a vessel for the Arctic requires a lot of adaptations. Due to the impact of these adaptations on the entire vessel design, a ship should be specially designed for operating in the Arctic, especially with the higher ice classes such as 1A Super, PC6 and PC 4.","AMTSV; arctic minor; TopTrack; Arctic Offshore Supply Vessel; Damen Shipyards; MARIN; DNV; TU Delft; Aalto University; winterization; PSV; AHTS; SSV; ice","en","report","","","","","","","","","Mechanical, Maritime and Materials Engineering","Marine & Transport Technology","","","",""
"uuid:8197132a-d578-48c0-a54d-3862da7a7e7c","http://resolver.tudelft.nl/uuid:8197132a-d578-48c0-a54d-3862da7a7e7c","Servicing the Arctic. Report 1: Design requirements and operational profile of an Arctic Offshore Support Vessel: Literature Survey","Bos, R.W.; Huisman, T.J.; Obers, M.P.W.; Schaap, T.; Van der Zalm, M.","","2013","Background The Dutch maritime industry has only limited knowledge about Arctic engineering, in spite of a growing market and interest by the oil and gas industry. This literature survey is the first in a series of three reports to develop a concept design of an Arctic Offshore Support Vessel (AOSV). The purpose is to give a perspective on Arctic shipping with a specific focus on offshore platform support and to provide a design framework for AOSVs. The information in this report is based on technical papers from the Internet, contact with different companies and Arctic courses from the Aalto University in Espoo, Finland. Results In general oil companies have a rising interest in the natural resource in the Arctic region. Next to their spending in Research and Development (R&D), also shipyards, suppliers and operators are eager to increase development for the harsh environments. This study shows, that every region in the Arctic has different weather and infrastructure conditions as well as different national laws and regulations. Next to that, operations in the harsh environment have high impact on the performance of the ship and its crew. This report gives an overview on technology available for operating in the Arctic, such as double acting hull, azimuth thrusting and other ice breaking technologies. Increasing research in Arctic engineering results in new, more reliable technologies and opens the possibility to design more advanced Arctic vessels. A big challenge in Arctic engineering is to have a optimal compromise between open water and ice behavior. Due to higher costs for among others R&D, material and equipment an AOSV will be more expensive. Operators, on the other hand, are also willing to pay more for them, because of the high amount of natural resources in the Arctic region. The expected focus of the industry is on Baffin Bay, Barents Sea and Beaufort Sea. This study discusses the estimated oil reserves, existing infrastructure and environmental impact. Also the operations an AOSV is likely to perform are given. Conclusions This report gives a wide overview on Arctic shipping. For most of its subjects more in depth research is needed to get a better understanding of the effects and specific demands of the Arctic. Nevertheless it is possible to develop AOSV that can operate in those three areas mentioned. But in the end a perfect AOSV cannot be made, it can only be optimized for some of the predefined requirements as stated in the operational profile.","AMTSV; arctic minor; TopTrack; Arctic Offshore Supply Vessel; literature; ice; human factor; risks; icebreaker; TU Delft; Aalto University; Damen Shipyards; MARIN; DNV; oil; gas","en","report","","","","","","","","","Mechanical, Maritime and Materials Engineering","Marine & Transport Technology","","","",""
"uuid:aaae5227-4333-4dfe-8e6d-9b766397954b","http://resolver.tudelft.nl/uuid:aaae5227-4333-4dfe-8e6d-9b766397954b","New Guidelines for Speed/Power Trials. Level Playing Field Established for IMO EEDI (1)","v d Boom, Henk J.J.; Huisman, H.; Mennen, F.","","2013","","hydrodynamics","","journal article","","","","","","","","indefinite","Mechanical, Maritime and Materials Engineering","Marine and Transport Technology","Ship Hydromechanics and Structures","","",""
"uuid:dd720f1e-384a-4074-82fd-92d09d1cc11c","http://resolver.tudelft.nl/uuid:dd720f1e-384a-4074-82fd-92d09d1cc11c","New Guidelines for Speed/Power Trials. Level Playing Field Establihment for IMO EEDI (2)","v d Boom, Henk J.J.; Huisman, H.; Mennen, F.","","2013","","hydrodynamics","","journal article","","","","","","","","indefinite","Mechanical, Maritime and Materials Engineering","Marine and Transport Technology","Ship Hydromechanics and Structures","","",""
"uuid:72d7a7d1-a18f-41d7-975f-d9428d9b7adb","http://resolver.tudelft.nl/uuid:72d7a7d1-a18f-41d7-975f-d9428d9b7adb","Agent-based Multi-organizational Interaction Design: A Case Study of the Dutch Railway System","Jiang, J.; Huisman, B.; Dignum, V.","","2012","In multi-organizational alliances, inter- and intraorganizational interactions are performed in dynamic environments towards the cooperative goals. To adapt to such dynamics, not only should organizational design provide sufficient representation of organizational requirements, but also provide control mechanisms to switch between different contextual states as a response to an external change. OperA+, as an agent-based organization modeling framework, on the one hand, inherits the advantages of describing and analyzing complex relations between entities, and on the other hand, supports design, analysis and communication of organizational knowledge at multiple levels of abstraction in multiple contexts. This paper aims at a demonstration of OperA+ for an analysis and design study of the Dutch railway system in the domain of train maintenance which is expecting an organization evolution from the current system to a new design.","organizational design; multi-agent system; contextual behavior; railway system; condition-based maintenance","en","conference paper","","","","","","","","","Technology, Policy and Management","Infrastructures, Systems and Services","","","",""
"uuid:d2185f76-94cf-4c98-a719-cf81ff538ea1","http://resolver.tudelft.nl/uuid:d2185f76-94cf-4c98-a719-cf81ff538ea1","A systematic and compatible classification of WEEE","Wang, F.; Huisman, J.; Balde, K.; Stevels, A.L.N.","","2012","","","en","conference paper","Fraunhofer Verlag","","","","","","","","Industrial Design Engineering","Design Engineering","","","",""
"uuid:552282df-c3f5-4fa1-bdb6-954cb48c5095","http://resolver.tudelft.nl/uuid:552282df-c3f5-4fa1-bdb6-954cb48c5095","Enhancing predictability of schedules by task grouping (extended abstract)","Wilson, M.; Witteveen, C.; Huisman, B.","","2012","","","en","conference paper","","","","","","","","","Electrical Engineering, Mathematics and Computer Science","Software Computer Technology","","","",""
"uuid:a30c3782-d2ef-4558-9f90-19eef3778761","http://resolver.tudelft.nl/uuid:a30c3782-d2ef-4558-9f90-19eef3778761","Rethinking Eco-design Priorities: The case of the Econova television","Bakker, C.A.; Ingenegeren, R.; Devoldere, T.; Tempelman, E.; Huisman, J.; Peck, D.P.","","2012","Eco-design heuristics (defined as experience-based techniques for problem solving) can play a useful role in helping designers prioritize eco-design strategies. One of these eco-design heuristics (the ‘use phase’ heuristic) is: Frequently used electric and electronic products usually have, over their life span, a dominant impact in the use phase. Modern mobile devices like smart phones however have their dominant impact in the production phase and therefore challenge this heuristic. The paper asked whether this could be a trend and whether we might find more electric and electronic products that challenge the ‘use phase’ heuristic. We found that in general, the development of highly energy efficient consumer electronics and the widespread shortening of product lifespans have indeed started to shift the focus to the materials and production phase of the life cycle. The case study of the Econova television showed that with a ‘best in class’ product like this TV, it is not possible to establish which life cycle phase is dominant. These findings led to several additions to the ‘use phase’ heuristic.","","en","conference paper","Fraunhofer Verlag","","","","","","","","Industrial Design Engineering","Design Engineering","","","",""
"uuid:d0f7d451-1c47-4d00-84a9-c5ff5ff2185a","http://resolver.tudelft.nl/uuid:d0f7d451-1c47-4d00-84a9-c5ff5ff2185a","The strange case of 60 frothy beads: Analyzing early iron age glass from the Netherlands","Huisman, H.; van Os, B.; Laan, J.; Ngan-Tillard, D.J.M.; Joosten, I.; Fermin, B.; van Straten, K.","","2012","","","en","conference paper","Centre for Archaeological Sciences","","","","","","","","Civil Engineering and Geosciences","Geoscience & Engineering","","","",""
"uuid:df6385e4-3479-4fce-a7bd-f84534160ce0","http://resolver.tudelft.nl/uuid:df6385e4-3479-4fce-a7bd-f84534160ce0","Bayesian model averaging using particle filtering and Gaussian mixture modeling: Theory, concepts, and simulation experiments","Rings, J.; Vrugt, J.A.; Schoups, G.; Huisman, J.A.; Vereecken, H.","","2012","Bayesian model averaging (BMA) is a standard method for combining predictive distributions from different models. In recent years, this method has enjoyed widespread application and use in many fields of study to improve the spread-skill relationship of forecast ensembles. The BMA predictive probability density function (pdf) of any quantity of interest is a weighted average of pdfs centered around the individual (possibly bias-corrected) forecasts, where the weights are equal to posterior probabilities of the models generating the forecasts, and reflect the individual models skill over a training (calibration) period. The original BMA approach presented by Raftery et al. (2005) assumes that the conditional pdf of each individual model is adequately described with a rather standard Gaussian or Gamma statistical distribution, possibly with a heteroscedastic variance. Here we analyze the advantages of using BMA with a flexible representation of the conditional pdf. A joint particle filtering and Gaussian mixture modeling framework is presented to derive analytically, as closely and consistently as possible, the evolving forecast density (conditional pdf) of each constituent ensemble member. The median forecasts and evolving conditional pdfs of the constituent models are subsequently combined using BMA to derive one overall predictive distribution. This paper introduces the theory and concepts of this new ensemble postprocessing method, and demonstrates its usefulness and applicability by numerical simulation of the rainfall-runoff transformation using discharge data from three different catchments in the contiguous United States. The revised BMA method receives significantly lower-prediction errors than the original default BMA method (due to filtering) with predictive uncertainty intervals that are substantially smaller but still statistically coherent (due to the use of a time-variant conditional pdf).","Bayesian model averaging; Gaussian mixture modeling; MCMC; data assimilation; hydrology; predictive uncertainty estimation","en","journal article","American Geophysical Union","","","","","","","","Civil Engineering and Geosciences","Water Management","","","",""
"uuid:d4253030-a188-4e29-b26b-54a8901d7854","http://resolver.tudelft.nl/uuid:d4253030-a188-4e29-b26b-54a8901d7854","Efficient Workplan Management in Maintenance Tasks","Wilson, M.; Roos, N.; Huisman, B.; Witteveen, C.","","2011","NedTrain is a Dutch company tasked with performing the maintenance of the rolling stock of the national railway company, NS. NedTrain owns several workshops at different locations. The scheduling in one such workshop will be taken as point of departure for the discussion in this paper. After discussing a suitable representation of the NedTrain task workplan problem that allows for a significant speed up in answering basic questions about schedules, we address the problem of modeling possible delays of individual tasks in a NedTrain workplan in such a way that questions concerning the likelihood of violation of deadlines can be easily answered. In particular, a method is presented to make use of a probabilistic representation of the possible delays in task executions, making it possible to better evaluate the quality of the schedule with regard to makespan extensions and deadline violations.","","en","conference paper","","","","","","","","","Electrical Engineering, Mathematics and Computer Science","Software Computer Technology","","","",""
"uuid:1526f52e-a4e0-437a-8d57-4f70c62f1f30","http://resolver.tudelft.nl/uuid:1526f52e-a4e0-437a-8d57-4f70c62f1f30","Characterization of Compass M-1 signals","Hauschild, A.; Montenbruck, O.; Sleewaegen, J.M.; Huisman, L.; Teunissen, P.J.G.","","2011","An analysis of observations from China’s first medium earth orbit satellite Compass M-1 is presented, with main focus on the first orbit and clock solution for this satellite. The orbit is computed from laser ranging measurements. Based on this orbit solution, the apparent clock offset is estimated using measurements from two GNSS receivers, which allow Compass tracking. The analysis of the clock solutions reveals unexpectedly high dynamics in the pseudorange and carrier-phase observations. Furthermore, carrier-to-noise density ratio, pseudorange noise, and multipath are analyzed and compared to GPS and GIOVE. The results of the clock analysis motivate further research on the signals of the geostationary satellites of the Compass constellation.","compass M-1; beidou 2A; signal analysis; orbit and clock determination","en","journal article","Springer","","","","","","","","Aerospace Engineering","Remote Sensing","","","",""
"uuid:b46be62c-9272-4708-92ff-46f8d6135119","http://resolver.tudelft.nl/uuid:b46be62c-9272-4708-92ff-46f8d6135119","The Use of the Dynamic Solution Space to Assess Air Traffic Controller Workload","D'Engelbronner, J.G.; Mulder, M.; Van Paassen, M.M.; De Stigter, S.; Huisman, H.","","2010","Air traffic capacity is mainly bound by air traffic controller workload. In order to effectively find solutions for this problem, off-line pre-experimental workload assessment methods are desirable. In order to better understand the workload associated with air traffic control, previous research introduced the static Solution Space as a possible workload metric. The Solution Space Diagram is a mapping of intruding aircraft trajectories to the velocity/heading plane in the form of Conflict Zones and safe areas. Choosing a velocity vector in either one will provide an unsafe or a safe solution, respectively. In this paper an improved, dynamic Solution Space will be tested for correlations with air traffic controller workload, measured experimentally. A two dimensional experiment has been conducted, where subjects were required to line up all aircraft in a sector towards a certain waypoint, while continuously providing subjective workload ratings. High correlations were found between several Solution Space parameters and the subjective workload. Even though a conventional workload metric shows also to be highly correlated to the measured workload, the Solution Space could be the scenario independent workload metric that is currently missing in air traffic controller workload determination.","","en","conference paper","American Institute of Aeronautics and Astronautics (AIAA)","","","","","","","","Aerospace Engineering","Control & Operations","","","",""
"uuid:5b315860-87fa-47d6-b9fd-2f5b3c536c00","http://resolver.tudelft.nl/uuid:5b315860-87fa-47d6-b9fd-2f5b3c536c00","Citric acid wastewater as electron donor for biological sulfate reduction","Stams, A.J.M.; Huisman, J.; Garcia Encia, P.A.; Muyzer, G.","","2009","Citrate-containing wastewater is used as electron donor for sulfate reduction in a biological treatment plant for the removal of sulfate. The pathway of citrate conversion coupled to sulfate reduction and the microorganisms involved were investigated. Citrate was not a direct electron donor for the sulfate-reducing bacteria. Instead, citrate was fermented to mainly acetate and formate. These fermentation products served as electron donors for the sulfate-reducing bacteria. Sulfate reduction activities of the reactor biomass with acetate and formate were sufficiently high to explain the sulfate reduction rates that are required for the process. Two citrate-fermenting bacteria were isolated. Strain R210 was closest related to Trichococcus pasteurii (99.5% ribosomal RNA (rRNA) gene sequence similarity). The closest relative of strain S101 was Veillonella montepellierensis with an rRNA gene sequence similarity of 96.7%. Both strains had a complementary substrate range.","Desulfurization; Sulfate reduction; Citrate fermentation; Trichococcus; Veillonella","en","journal article","Springer","","","","","","","","Applied Sciences","Biotechnology","","","",""
"uuid:518fb0be-a24a-4887-bc12-a111de2e1bbe","http://resolver.tudelft.nl/uuid:518fb0be-a24a-4887-bc12-a111de2e1bbe","A partnership based on thrust – MARIN’s relationship with Royal Netherlands Navy goes from strength to strength","Huisman, Jaap","","2009","","maritime general","","report","","","","","","","","","Mechanical, Maritime and Materials Engineering","Marine and Transport Technology","Ship Hydromechanics and Structures","","",""
"uuid:d898aef3-203b-47c4-9366-cfb6813ec567","http://resolver.tudelft.nl/uuid:d898aef3-203b-47c4-9366-cfb6813ec567","Kunt u ons LTHP wat strategischer maken?","Huisman, E; van der Voordt, Theo (TU Delft Real Estate Management); Westra, H (TU Delft Real Estate Management; TU Delft Sustainable Housing Transformation)","","2009","Nu de markwerking in de zorg steeds meer zijn beslag krijgt, neemt de noodzaak tot strategisch sturen op zorgvastgoed sterk toe. Een gereguleerde marktwerking geeft meer autonomie in vastgoedbeslissingen, maar het betekent ook dat je zelf meer risico’s draagt. Kapitaallasten worden niet meer automatisch vergoed. Dit heeft belangrijke consequenties voor de Lange Termijn Huisvestingsplannen (LTHP) van algemene ziekenhuizen. Hoe gaat men in de praktijk om met de slag naar een strategischer inzet van vastgoed?","","nl","journal article","","","","","","","","","","","Real Estate Management","","",""
"uuid:6d2eeab3-1186-4ba9-87b0-81fc6de1d13d","http://resolver.tudelft.nl/uuid:6d2eeab3-1186-4ba9-87b0-81fc6de1d13d","Clinical effects of transcatheter hepatic arterial embolization with holmium-166 poly(l-lactic acid) microspheres in healthy pigs","Vente, M.A.D.; Nijsen, J.F.W.; De Wit, T.C.; Seppenwoolde, J.H.; Krijger, G.C.; Seevinck, P.R.; Huisman, A.; Zonneneberg, B.A.; Van den Ingh, T.S.G.A.M.; Van het Schip, A.D.","","2008","Purpose The aim of this study is to evaluate the toxicity of holmium-166 poly(l-lactic acid) microspheres administered into the hepatic artery in pigs. Methods Healthy pigs (20–30 kg) were injected into the hepatic artery with holmium-165-loaded microspheres (165HoMS; n?=?5) or with holmium-166-loaded microspheres (166HoMS; n?=?13). The microspheres’ biodistribution was assessed by single-photon emission computed tomography and/or MRI. The animals were monitored clinically, biochemically, and (166HoMS group only) hematologically over a period of 1 month (165HoMS group) or over 1 or 2 months (166HoMS group). Finally, a pathological examination was undertaken. Results After microsphere administration, some animals exhibited a slightly diminished level of consciousness and a dip in appetite, both of which were transient. Four lethal adverse events occurred in the 166HoMS group due either to incorrect administration or comorbidity: inadvertent delivery of microspheres into the gastric wall (n?=?2), preexisting gastric ulceration (n?=?1), and endocarditis (n?=?1). AST levels were transitorily elevated post-166HoMS administration. In the other blood parameters, no abnormalities were observed. Nuclear scans were acquired from all animals from the 166HoMS group, and MRI scans were performed if available. In pigs from the 166HoMS group, atrophy of one or more liver lobes was frequently observed. The actual radioactivity distribution was assessed through ex vivo 166mHo measurements. Conclusion It can be concluded that the toxicity profile of HoMS is low. In pigs, hepatic arterial embolization with 166HoMS in amounts corresponding with liver-absorbed doses of over 100 Gy, if correctly administered, is not associated with clinically relevant side effects. This result offers a good perspective for upcoming patient trials","Internal radiation therapy; Holmium; Microspheres; Liver malignancies","en","journal article","Springer","","","","","","","","Applied Sciences","Department of Radiation, Radionuclides and Reactors","","","",""
"uuid:bb53141b-e15f-476d-b3da-ead31a3d9262","http://resolver.tudelft.nl/uuid:bb53141b-e15f-476d-b3da-ead31a3d9262","Analysis of air-launched ground-penetrating radar techniques to measure the soil surface water content","Lambot, S.; Weihermüller, L.; Huisman, J.A.; Vereecken, H.; Vanclooster, M.; Slob, E.C.","","2006","We analyze the common surface reflection and full-wave inversion methods to retrieve the soil surface dielectric permittivity and correlated water content from air-launched ground-penetrating radar (GPR) measurements. In the full-wave approach, antenna effects are filtered out from the raw radar data in the frequency domain, and full-wave inversion is performed in the time domain, on a time window focused on the surface reflection. Synthetic experiments are performed to investigate the most critical hypotheses on which both techniques rely, namely, the negligible effects of the soil electric conductivity (?) and layering. In the frequency range 1–2 GHz we show that for ? > 0.1 Sm?1, significant errors are made on the estimated parameters, e.g., an absolute error of 0.10 in water content may be observed for ? = 1 Sm?1. This threshold is more stringent with decreasing frequency. Contrasting surface layering may proportionally lead to significant errors when the thickness of the surface layer is close to one fourth the wavelength in the medium, which corresponds to the depth resolution. Absolute errors may be >0.10 in water content for large contrasts. Yet we show that full-wave inversion presents valuable advantages compared to the common surface reflection method. First, filtering antenna effects may prevent absolute errors >0.04 in water content, depending of the antenna height. Second, the critical reference measurements above a perfect electric conductor (PEC) are not required, and the height of the antenna does not need to be known a priori. This averts absolute errors of 0.02–0.09 in water content when antenna height differences of 1–5 cm occur between the soil and the PEC. A laboratory experiment is finally presented to analyze the stability of the estimates with respect to actual measurement and modeling errors. While the conditions were particularly well suited for applying the common reflection method, better results were obtained using full-wave inversion.","electromagnetic inversion; ground penetrating radar; surface water content","en","journal article","American Geophysical Union","","","","","","","","Civil Engineering and Geosciences","Geotechnology","","","",""
"uuid:ca501b2e-c266-4cf6-a0b1-9e3638393e47","http://resolver.tudelft.nl/uuid:ca501b2e-c266-4cf6-a0b1-9e3638393e47","Assessment of rock mass decay in artificial slopes; Beoordeling van de degradatie van gesteentemassa's in kunstmatige hellingen","Huisman, M.","Nieuwenhuis, J.D. (promotor)","2006","This research investigates the decay of rock masses underlying slopes, and seeks to quantify the relations of such decay with time and geotechnical parameters of the slope and rock mass. Decay can greatly affect the geotechnical properties of rocks within engineering timescales, and may induce a rapid change in mass strength, from initial rock-like properties to soil-like properties in a weathered state., as well as a notable decrease of slope stability. Several rock types are known to have a high susceptibility to such decay within engineering timescales, most notably mudstones and gypsum-bearing formations. A close relationship has been found between weathering intensity rates, the slope orientation and the prevailing wind directions during rainfall events, with a notable influence of damage to the rock mass by the applied excavation method. The exact relation differs from one geotechnical unit to another depending on the principal weathering processes that act on each individual unit. These relations can be used to predict weathering intensity rates and therefore also the weathering degree as a function of time. With the use of a probabilistic slope stability assessment method, predictions for future slope stability can also be made.","rock; weathering; decay; slope stability; road construction","en","doctoral thesis","","","","","","","","","Civil Engineering and Geosciences","","","","",""
"uuid:c4d31183-d29c-4a5f-829f-c5afbbda3778","http://resolver.tudelft.nl/uuid:c4d31183-d29c-4a5f-829f-c5afbbda3778","Eco-efficiency considerations on the end-of-life of consumer electronic products","Huisman, J.; Stevels, A.L.N.; Stobbe, I.","","2004","","","en","journal article","IEEE","","","","","","","","Industrial Design Engineering","","","","",""
"uuid:cbf16ff2-1a3d-4dbb-be14-5a748f7b5f60","http://resolver.tudelft.nl/uuid:cbf16ff2-1a3d-4dbb-be14-5a748f7b5f60","Scaling behavior and parasitic series resistance in disordered organic field-effect transistors","Meijer, E.J.; Gelinck, G.H.; Van Veenendaal, E.; Huisman, B.H.; De Leeuw, D.M.; Klapwijk, T.M.","","2003","The scaling behavior of the transfer characteristics of solution-processed disordered organic thin-film transistors with channel length is investigated. This is done for a variety of organic semiconductors in combination with gold injecting electrodes. From the channel-length dependence of the transistor resistance in the conducting ON-state, we determine the field-effect mobility and the parasitic series resistance. The extracted parasitic resistance, typically in the M? range, depends on the applied gate voltage, and we find experimentally that the parasitic resistance decreases with increasing field-effect mobility.","organic semiconductors; thin film transistors,; semiconductor device measurement; field effect transistors; carrier mobility; amorphous semiconductors","en","journal article","American Institute of Physics","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:f29557d0-7e8d-421d-b425-ed527a6eed12","http://resolver.tudelft.nl/uuid:f29557d0-7e8d-421d-b425-ed527a6eed12","The QWERTY/EE concept, Quantifying Recyclability and Eco-Efficiency for End-of-Life Treatment of Consumer Electronic Products","Huisman, J.","Stevels, A.L.N. (promotor)","2003","The QWERTY/EE concept addresses recyclability and eco-efficiency of take-back and recycling of consumer electronic products, a topic currently receiving large international attention. Through the environmental part of the concept an alternative for usual weight based recycling percentages is presented. In addition, economic effects of take-back and recycling are included in a quantitative eco-efficiency approach for evaluating technological, design and policy strategies. The approach itself and the valuable insights in recycling of consumer electronic products are highly interesting for policy makers, legislators, product designers, manufacturers, recyclers, take-back system operators and scientists. The concept is applied on a large number of products and scenarios, based on extensive environmental and economic modeling of end-of-life processing. The results show how to set priorities to enhance end-of-life performance by properly aligning policy making, system operation, technology and Design for End-of-Life. From this perspective, the recently enacted European Directives on electronic waste, WEEE, and hazardous substances, RoHS, are reviewed, indicating substantial room for improvement and showing practical directions for future eco-efficient development of take-back and recycling of electronic products.","eco-efficiency; recycling; take-back; waste management; environment","en","doctoral thesis","","","","","","","","","Design, Engineering and Production","","","","",""
"uuid:4c18ac5c-e336-4dd3-b889-91d6e7ddb00f","http://resolver.tudelft.nl/uuid:4c18ac5c-e336-4dd3-b889-91d6e7ddb00f","Switch-on voltage in disordered organic field-effect transistors","Meijer, E.J.; Tanase, C.; Blom, P.W.M.; Van Veenendaal, E.; Huisman, B.H.; De Leeuw, D.M.; Klapwijk, T.M.","","2002","The switch-on voltage for disordered organic field-effect transistors is defined as the flatband voltage, and is used as a characterization parameter. The transfer characteristics of the solution processed organic semiconductors pentacene, poly(2,5-thienylene vinylene) and poly(3-hexyl thiophene) are modeled as a function of temperature and gate voltage with a hopping model in an exponential density of states. The data can be described with reasonable values for the switch-on voltage, which is independent of temperature. This result also demonstrates that the large threshold voltage shifts as a function of temperature reported in the literature constitute a fit parameter without a clear physical basis.","organic semiconductors; field effect transistors; electronic density of states; amorphous semiconductors","en","journal article","American Institute of Physics","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:efeb1c1b-bef7-4d6b-bca4-436b2b455d06","http://resolver.tudelft.nl/uuid:efeb1c1b-bef7-4d6b-bca4-436b2b455d06","Watertovenaars: Delftse ideeën voor nog 200 jaar Rijkswaterstaat","D’Angremond, K.; Huisman, P.; de Jong, T.; Schiereck, G.J.; Thissen, W.","TU Delft","1998","Een bundel artikelen met inspiratie voor Rijkswaterstaat voor de ontwikkeling in de volgende 200 jaar. Watertovenaar of tovenaarsleerling? (K. d'Angremond, P. Huisman en G.I. Schiereek) De oudste deltawerken: dammen en duikers uit het begin van de jaartelling (T. de Ridder) Een erfenis uit de Bataafse periode (W.M. de Jong) Wat eerst: wonen, water, wegen of welvaart? (T.M. de Jong) Een nieuwe rol voor de waterstaatsingenieur (F.M. Sanders) De terugkeer van de stedenbouwkundige discipline (V.J. Meyer Water (P. Huisman, K. d'Angremond en G.J. Schiereek) Dynamische buffers in autosnelwegen (D. Westland en P.H.L. Bovy) Op de automatische piloot door de Randstad? (R. van der Heijden, V. Marchau, E. Molin en K. van Wees) Niet bruggen bouwen, maar zelf brug zijn (B. Enserink, M.P.M. van der Ploeg, WAH. Thissen en G.J. de Vreede) Nederland als vervoersemplacement? (M.P.C. Weijnen, W.A.H. Thissen en E.F. ten Heuvelhof) Immobilisatie van gevaarlijk afval (Ch.F.Hendriks) Dubbel verduurzamen van wegconstructies (A.A.A. Molenaar) Innovatie van de geometrische infrastructuur (P.J.G.Teunissen) Radarhoogtemetingen en de (voorname) rol van Delft (M. Naeije) Een hoog(water)standje (T. Rientjes, C. van den Akker en P. van der Veer) Naar één beslismodel voor de veiligheid (J.K. Vrijling en J. Stoop) De betrouwbaarheid van dijken (A. Verruijt) Windgolven, een fascinerend fenomeen (L.H. Holthuijsen en J.A. Battjes) Mijn droom: het railvaartuig (B. Boon) Een waterfilm in plaats van wielen (A. van Beek) Uren worden minuten (E.A.H. Vollebregt, H. Jansen en M.R.T. Roest) Een kwestie van schuiven (R.Brouwer, A.Hof en J. Schuurmans) Energie door vergisting van slib (M.S.M. letten en M.C.M. van Loosdrecht) Nóg een poldermodel: hoge-sterkte beton (J.C. Walraven) Atollen voor de Noordzeekust (J. Kristinsson) Van maker naar regisseur (H.A.J. de Ridder)","Rijkswaterstaat; waterbouwkunde; civiele techniek","nl","report","Beta Imaginations","","","","","","","","","","","","",""
"uuid:619457dd-7aa0-4045-9136-87d123012322","http://resolver.tudelft.nl/uuid:619457dd-7aa0-4045-9136-87d123012322","Failure and cracking of Inconel 718 air supply manifold support rods: A service-related contribution to lEPG TA 31","Wanhill, R.J.H.; Boogers, J.A.M.; Huisman, H.N.; Ottens, H.H.","","1996","In 1995 an air supply manifold support rod from a high-performance turbofan engine failed by bending fatigue. The rod material was Inconel 718, operating at about 550° in an air environment. Diagnostic aspects of the failure (fatigue in bending, Stage I and Stage II fatigue fracture characteristics, and interference colours due to fracture surface oxidation) were aided by test results from the European collaborative programme lEPG TA 31: Lifing Concepts for Military Aero-Engine Components. Bending of the rod was caused by relative movement of the inner and outer sections of a connection between the diffuser case air supply manifold, whereby accomodatory swivelling of a spherical ends of the rod in the spherical seatings of the connection was prevented by contact pressure, fretting and binding. A contributory factor is likely to have been decomposition of an anti-galling compound applied to the spherical contact surfaces. This decomposition, and hence loss of function, could have begun at temperatures well below the normal operating temperatures of the rod. Recommendations were made for the alternative anti-galling compounds or a plasma-sprayed coating, which is a less suitable option. It was also recommended to thoroughly inspect the rods in other engines, as an addition to the specified maintenance procedure. This additional inspection was well under way by the beginning of 1996.","bending fatigue; cracking (fracturing); failure analysis; Inconel (trademark); intake systems; manifolds; fractography; rods; metal surfaces; protective coatings; turbofan engines","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:77369d44-2220-4f64-9300-be39a4a9ca92","http://resolver.tudelft.nl/uuid:77369d44-2220-4f64-9300-be39a4a9ca92","A multiphase series-resonant converter with a new topology and a reduced number of thyristors","Huisman, H.","","1995","","","en","journal article","IEEE","","","","","","","","","","","","",""
"uuid:f05a1b3f-b65f-478c-8c6a-a7a0fcee6eba","http://resolver.tudelft.nl/uuid:f05a1b3f-b65f-478c-8c6a-a7a0fcee6eba","Van casus tot pandemie: Omgaan met infectieziekten","Huisman, J.","","1993","","Uittreerede","nl","public lecture","","","","","","","","","","","","","",""
"uuid:3d0554ee-ea49-4d32-9e56-21aa5aec3f2c","http://resolver.tudelft.nl/uuid:3d0554ee-ea49-4d32-9e56-21aa5aec3f2c","Continue productie van di-n-propyldisulfide door luchtoxidatie van n-propylmercaptaan","Huisman, J.L.; Kok, E.F.","","1993","Document uit de collectie Chemische Procestechnologie","","nl","report","Delft University of Technology","","","","","","","","Applied Sciences","DelftChemTech","","","",""
"uuid:aa50e9cb-b7c0-4308-845c-2d241cb14755","http://resolver.tudelft.nl/uuid:aa50e9cb-b7c0-4308-845c-2d241cb14755","Design and control of a class of multiphase series-resonant power converters","Huisman, H.","Bosgra, O.H. (promotor); Vandenput, A.J.A. (promotor)","1992","","","en","doctoral thesis","Delft University Press","","","","","","","","Mechanical Maritime and Materials Engineering","","","","",""
"uuid:29c01ddc-6962-4a3f-bf8e-f477fa93ddac","http://resolver.tudelft.nl/uuid:29c01ddc-6962-4a3f-bf8e-f477fa93ddac","Een studie voor de Suiker Unie naar verschillende suikerbietenpulpdrogers","Bergman, E.; Coremans, P.; Favier, M.; Grootes, B.J.; Hooijkaas, M.; Huisman, J.R.; Jansens, P.; Schuring, R.J.; Touw, B.; Venderbosch, R.; Visser, L.; Waalewijn, E.","","1988","Document uit de collectie Chemische Procestechnologie","","nl","report","Delft University of Technology","","","","","","","","Applied Sciences","DelftChemTech","","","",""
"uuid:38f1db50-9a83-4d6f-b10a-2e4649e9081a","http://resolver.tudelft.nl/uuid:38f1db50-9a83-4d6f-b10a-2e4649e9081a","Study on data compression systems for operational remote sensing","Börger, J.B.; Huisman, W.C.; van der Lubbe, J.C.A.; Rosema, A.; de Waard, J.","","1986","This report describes the outcome of a study on data compression systems for operational remote sensing, initiated by ESOC. Purpose of this study is to examine the consequences of data compression in the METEOSAT imagery data dissemination mission. The outcome of the data analysis (intraframe data compression based upon pixel differences) is also strenghtened by operational requirements such as the amount of memory required and error propagation. User requirements stress that no loss of information is accepted hence reconstruction of the original data with a reconstruction error zero is required. These three aspects were used as an input to select the proper METEOSAT imagery data compression method. Although not optimal in the sense of implementation complexity, slightly higher, the MEANDER-1 method turned out to give the best results.","","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:86621135-adac-4d0f-a37f-34a57aeeede9","http://resolver.tudelft.nl/uuid:86621135-adac-4d0f-a37f-34a57aeeede9","Data compression as a means to disseminate more METEOSAT data over the existing channel","Huisman, W.C.; Börger, J.B.","","1986","This paper describes the outcome of a study on data compression methods for operational remote sensing (meteorology), initiated by ESOC. Objective of this study was to determine the feasibility of data compression in the METEOSAT imagery-data dissemination mission. User requirements indicate that decompressed METEOSAT imagery should contain no errors. This implies that the data compression methods must be reversible and the compressed data must be protected against transmission errors using error-correcting coding methods. The compression ratio (about 2) that must be achievable is easily attainable with practical data compression methods which can be implemented in real-time operating hardware. Paper presented at the 6th METEOSAT Scientific Users Meeting at Amsterdam, The Netherlands, 25-27 November 1986.","","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:5b7bc513-4dc2-4abf-814f-8c66828ec175","http://resolver.tudelft.nl/uuid:5b7bc513-4dc2-4abf-814f-8c66828ec175","Rate distortion functions of sar imagery","Okkes, R.W.; Huisman, W.C.","","1986","SAR imagery are characterized by socalled speckle that gives a noisy appearance to these images. Application of non-reversible data compression methods results in a reduced bit rate at the cost of distortion in the SAR data. The distortion is measured with respect to a reference image, i.e. a speckle free image determined by the ground scene and the SAR system characteristics. The bit rate for an optimal encoder is determined for cases whereby an appropriate filter is used prior to data compression and after data compression respectively. Results are also presented for the case that practical encoding schemes are used for the compression of SAR imagery.","","en","report","Nationaal lucht- en ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:786f995e-ebf9-45f1-a85f-374526d3dad0","http://resolver.tudelft.nl/uuid:786f995e-ebf9-45f1-a85f-374526d3dad0","Final report study of synthetic aperture radar data compression and encoding: part III: performance evaluation of speckle suppression and data compression algorithms","Huisman, W.C.; Verhoef, W.; Okkes, R.W.","","1986","Rate distortion bounds are derived for SAR images and compared with the rate versus distortion relations obtained with the speckle suppression and data compression algorithm described in Part II. A method is given for optimally processing multispectral SAR-images. The method makes use of the spectral correlation between the mean return power corresponding to each spectral channel. Real SAR-data is processed with the algorithms described in Part II and subjected to information extraction experiments.","","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:16ae7986-426f-4c17-985d-93d10e3bc8b9","http://resolver.tudelft.nl/uuid:16ae7986-426f-4c17-985d-93d10e3bc8b9","Final report on study, design and evaluation of data reduction by encoding or information extraction: part IV: performance demonstration","Verhoef, W.; Börger, J.B.; Huisman, W.C.","","1986","In this part IV a number of visual and numerical results of data compression techniques are presented. The results are presented for multispectral, multiframe and non-imagery data as well as theoretically derived (artificial) data.","","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:1a571f22-0849-4192-bdb8-b7cdcd01e1c1","http://resolver.tudelft.nl/uuid:1a571f22-0849-4192-bdb8-b7cdcd01e1c1","Final report study of synthetic aperture radar data compression and encoding: part II: SAR image speckle suppression and data compression algorithms","Langemann, M.; Huisman, W.C.","","1985","This Part II of the Final Report discusses algorithms for reducing the typical SAR noise (speckle) in SAR-images and the ensuing compression of these images. The speckle suppression is achieved by means of an adaptive local-variant two-dimensional filter in the time-domain, operating on blocks of 5 x 5 pixels; the compression is achieved by means of a transform coding algorithm. Attention focusses on the monospectral treatment of SAR-imagery; some attention is given to the multi-spectral case.","","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:88c82a5c-3dff-4641-a79d-dd7f043cab88","http://resolver.tudelft.nl/uuid:88c82a5c-3dff-4641-a79d-dd7f043cab88","Final report on study, design and evaluation of data reduction by encoding or information extraction: part III: algorithm design","Huisman, W.C.; van der Lubbe, J.C.A.; Rooijackers, J.; Verhoeff, W.","","1985","In this report several data compression techniques for the compression of multispectral imagery, multiframe imagery and scientific data are described and a performance illustration of each algorithm is given.","","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:b2f05c5f-6069-4f65-ae3e-ea9544303d4a","http://resolver.tudelft.nl/uuid:b2f05c5f-6069-4f65-ae3e-ea9544303d4a","Final report on study, design and evaluation of data reduction by encoding or information extraction: part I: data generation analysis","van der Lubbe, J.C.A.; Börger, J.B.; Huisman, W.C.","","1985","In this report a survey of past and future (ESA) payloads is given and relevant classes of instruments are identified. For each of the classes of multispectral instruments, multiframe imaging instruments and nonimaging instruments, those instruments are selected, whose data sets seem appropriate for the evaluation of the data compression methods studied under this ESA-contract. The characteristics of the corresponding data sets are studied and theoretical image models are generated.","","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:6238ea8e-5aa5-4c4d-a7a2-939bb67edf2b","http://resolver.tudelft.nl/uuid:6238ea8e-5aa5-4c4d-a7a2-939bb67edf2b","Rate distortion characteristics of two adaptive data compression algorithms","Huisman, W.C.","","1985","Two newly developed adaptive data oompvession algorithms which are easily implemented in a spaoehom micro programmable processor are applied to the compression of simulated image data with Markov properties. The rate-distortion characteristics obtained are compared with theoretically attainable bounds. For compression on a block by block basis the maximum deviation from these bounds is only 0.55 respectively 0.70 bits per pixel.","","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:1bed62f1-48f7-4380-950b-329513e86f55","http://resolver.tudelft.nl/uuid:1bed62f1-48f7-4380-950b-329513e86f55","Relative motions and swell-up for a frigate bow","Blok, Jan J.; Huisman, J.","","1984","","hydrodynamics","","report","","","","","","","","","Mechanical, Maritime and Materials Engineering","Marine and Transport Technology","Ship Hydromechanics and Structures","","",""
"uuid:e644378d-a33f-41a6-a9c1-7a1fe27e091d","http://resolver.tudelft.nl/uuid:e644378d-a33f-41a6-a9c1-7a1fe27e091d","Proposed changes of eurocodes","Huisman, O.G.; Becque, R.F.","","1984","","Stevin Laboratorium","en","report","","","","","","","","","Civil Engineering and Geosciences","Structural Engineering","","","",""
"uuid:85013978-7a2d-49aa-b63b-501a66b92866","http://resolver.tudelft.nl/uuid:85013978-7a2d-49aa-b63b-501a66b92866","Three image compression algorithms for CADISS","Huisman, W.C.","","1983","","","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:d01010ab-235b-4667-b15d-22c377530763","http://resolver.tudelft.nl/uuid:d01010ab-235b-4667-b15d-22c377530763","""Die klaar water maakt, mag met den dokter lachen""","Huisman, J.","","1982","","Intreerede","nl","public lecture","Dup","","","","","","","","","","","","",""
"uuid:c4270675-e9b3-4f0b-8041-1cd305211bc3","http://resolver.tudelft.nl/uuid:c4270675-e9b3-4f0b-8041-1cd305211bc3","Stress corrosion crack initiation testing of high strength aluminium alloys using tuning fork type specimens","Schra, L.; Huisman, H.N.","","1981","An experimental investigation was carried out into the applicability of various corrosive environments for stress corrosion crack initiation testing of high strength aluminium alloys using constant strain loaded tuning fork type specimens. The effect of surface preparation was also involved. The most important findings were that salt-chromate solution inhibited general corrosion effectively but either did not result in cracking or, at a low pH value, led to an unrealistic ranking of materials as to SCC. The material behaviour experienced under atmospheric conditions was reflected very well by alternate-immersion testing in a salt solution. However, a pickling pre-treatment caused in different alloys a different degree of attack and resulted in substantially shorter lifetimes for alternate immersion testing.","High strength alloys; Aluminum alloys; Stress corrosion cracking; Crack initiation; Corrosion resistance; Strain rate; Chromates; Sodium chlorides; Surface finishing; Salt spray tests; Accelerated life tests","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:fa3ef77a-a28f-426e-bf5a-c212593d693a","http://resolver.tudelft.nl/uuid:fa3ef77a-a28f-426e-bf5a-c212593d693a","Feasibility of B-spline data-reduction on remote sending data","Huisman, W.C.; Bunnik, N.J.J.","","1980","Remote sensing data can he approximated by a two-dimensional spline function in the least square sense. This approximation results in a reduction of the / amount of data. On Landsat data consisting of 240 x 240 pixels from an area in the environment of Harderwijk, spline approximation of order 3 is applied and / compared with the original data. It appears that the approximation introduces/ some unsharpness in the reconstructed image, which is due to the low-pass / filtering properties of the data reduction method.","","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:666e60e4-06bb-4a0d-b80d-85de5690811a","http://resolver.tudelft.nl/uuid:666e60e4-06bb-4a0d-b80d-85de5690811a","Image processing techniques using spline appoximation","Huisman, W.C.; van Kasteel, J.","","1980","A two-dimensional data-compression method is described which is based on a least-square image approximation with use of splines. A complete analysis of this process in the frequency domain is given. For the data compression process the feasibility of some candidate realisations of the real-time operating hardware is described. The image reconstruction from the compressed data set consists of an off-line computation of a modified compressed data set followed by a real-time replay interpolation process. In order to achieve a better image reconstruction a flexible edge enhancement algorithm was developed.","","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:bb7eadf3-8bfe-48b0-8b4d-916b24f89875","http://resolver.tudelft.nl/uuid:bb7eadf3-8bfe-48b0-8b4d-916b24f89875","The reclanation of improperly cadmium electroplated high strength steel parts","van Leeuwen, H.P.; de Rijk, P.; Boogers, J.A.M.; Huisman, H.N.; Wanhill, R.J.H.","","1979","Circumferentially notched round specimens of 4340 type steel have been plated in a galvanic bath known to be embrittling. The specimens were reclaimed by stripping and baking. Half the specimens were replated in a non-embrittling bath. Reclamation did not remove all traces of hydrogen embrittlement, but raised the threshold stress to such a level that hydrogen embrittlement would no longer be a hazard under normal circumstances.","Hydrogen Embrittlement; Cadmium plate; electroplating; High Strength Steels; Zinc coatings; Baking; Degassing; .Material tests; Fractography; Failure modes; Critical loading","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:a394b362-e07d-445b-abf0-3692c68d1017","http://resolver.tudelft.nl/uuid:a394b362-e07d-445b-abf0-3692c68d1017","Zeegangs metingen superboei","Huisman, Jaap","","1977","","hydrodynamics","","report","","","","","","","","indefinite","Mechanical, Maritime and Materials Engineering","Marine and Transport Technology","Ship Hydromechanics and Structures","","",""
"uuid:e401f720-ef89-4a13-8237-2484518b8d1a","http://resolver.tudelft.nl/uuid:e401f720-ef89-4a13-8237-2484518b8d1a","Bepaling hydrodynamische coëfficiënten van roeren met flappen. Hydrodynamische ontwerpgegevens voor het roer","Huisman, Jaap","Gerritsma, J. (mentor)","1975","","hydrodynamics","","master thesis","","","","","","","","indefinite","Mechanical, Maritime and Materials Engineering","Marine and Transport Technology","Ship Hydromechanics and Structures","","",""
"uuid:794d7166-de13-403b-aab8-431a3aca2241","http://resolver.tudelft.nl/uuid:794d7166-de13-403b-aab8-431a3aca2241","Onderwijs, Onderzoek en Nieuwbouw van de Afdeling der Weg- en Waterbouwkunde van de T.H. Delft","de Heer, A.; Bischoff van Heemskerck, W.C.; Huisman, L.; Volmuller, J.; van Bilderbeek, B.; de Sitter, W.R.; Kuipers, J.; Vermeyden, P.; de Back, J.; Bruggeling, A.S.G.","","1970","Artikelen over faculteit Weg- en Waterbouwkunde van de TH Delft.","","nl","journal article","","","","","","","","","Mechanical, Maritime and Materials Engineering","","","","",""
"uuid:3d626090-34d6-4cd4-adf2-81522f4c5c10","http://resolver.tudelft.nl/uuid:3d626090-34d6-4cd4-adf2-81522f4c5c10","CAD user experience in the Royal Netherlands Navy","Keizer, Ed W.H.; Vermey, P.; Huisman, J.","","","","mathematics","","report","","","","","","","","indefinite","Mechanical, Maritime and Materials Engineering","Marine and Transport Technology","Ship Hydromechanics and Structures","","",""
"uuid:a1aa3c3b-a32e-4438-b1ab-f38fe5cf699c","http://resolver.tudelft.nl/uuid:a1aa3c3b-a32e-4438-b1ab-f38fe5cf699c","Extreme waarden en decisieproblemen","Huisman, P.","","1966","","statistiek; extreme waarden; risicoanalyse; statistische analyse; decisieproblemen (draagwijdte, optimale handelswijze, maximalisate van voordelen)","nl","lecture notes","TU Delft, Department Hydraulic Engineering","","","","","","","","Civil Engineering and Geosciences","Hydraulic Engineering","","","",""
"uuid:a688d78d-f48f-4874-a485-97c90f57e439","http://resolver.tudelft.nl/uuid:a688d78d-f48f-4874-a485-97c90f57e439","Het drijvende duinwater","Huisman, L.","","1964","","Intreerede","nl","public lecture","Waltman","","","","","","","","","","","","",""
"uuid:5a195c8a-883a-4498-b983-ed6458984abd","http://resolver.tudelft.nl/uuid:5a195c8a-883a-4498-b983-ed6458984abd","Drawdown due to ground-water abstraction with straight lines of wells","Huisman, L.","","1963","Calculation of ground water flow and lowering of the phreatic surface due to pumping of ground waters, with a focus on drinking water.","drinking water; ground water; pumping","en","book chapter","TU Delft, Section Hydraulic Engineering","","","","","","","","Civil Engineering and Geosciences","Hydraulic Engineering","","","",""
"uuid:8fd859e9-7b23-4bf5-a8f0-8acdf384fde1","http://resolver.tudelft.nl/uuid:8fd859e9-7b23-4bf5-a8f0-8acdf384fde1","Verslag fabrieksschema: Polyetheen","Huisman, K.J.","","1960","Document(en) uit de collectie Chemische Procestechnologie","","nl","report","Delft University","","","","","","","","Applied Sciences","DelftChemTech","","","",""