- document
-
Xia, Y. (author), Langelaar, Matthijs (author), Hendriks, M.A.N. (author)Strut-and-tie modelling (STM) is an effective and widely used method to design disturbed regions (D-regions) of reinforced concrete structures. Among the various steps of STM, finding a suitable truss-analogy model is the most challenging part. Even for experienced engineers it is difficult to find representative models for complex D-regions,...journal article 2020
- document
-
Amini, J. (author), Hendriks, R.C. (author), Heusdens, R. (author), Guo, Meng (author), Jensen, Jesper (author)Compared to monaural hearing aids (HAs), binaural hearing aid systems, in which there is a communication link between the two devices, have improved noise reduction capabilities and the ability to preserve binaural spatial information. However, the limited HA battery lifetime puts constraints on the amount of information that can be shared...journal article 2020
- document
-
Osmolska, Magdalena J. (author), Hornbostel, Karla (author), Kanstad, Terje (author), Hendriks, M.A.N. (author), Markeset, Gro (author)The most common methods for detecting chloride-induced corrosion in concrete bridges are half-cell potential (HCP) mapping, electrical resistivity (ER) measurements, and chloride concentration testing, combined with visual inspection and cover measurements. However, studies on corrosion detection in pretensioned structures are rare. To...journal article 2020
- document
-
Gonzales, A. (author), Guo, H. (author), Ortega-Ibáñez, Oscar (author), Petri, Coert (author), van Lier, J.B. (author), de Kreuk, M.K. (author), Hendriks, Alexander (author)Sludge pre-treatments are emerging as part of the disposal process of solid by-products of wastewater purification. One of their benefits is the increase in methane production rate and/or yield, along with higher loading capacities of existing digesters. In this study, we report the performance of a pilot-scale compartmentalized digester (volume...journal article 2020
- document
-
Hendriks, Yaron (author)In general, projects still fail at a high rate. New project management approaches have been found to try and do something about the high rate of failing projects. One of these promising modern approaches is Agile project management. It has been practiced increasingly since recent years in many sectors, most evident in the ICT sector. Though...master thesis 2019
- document
-
Wei, C. (author), Hendriks, Koen V. (author), van Riemsdijk, M.B. (author), Jonker, C.M. (author)Agents in teamwork may be highly interdependent on each other, the awareness of interdependence relationships is an important requirement for designing and consequently implementing a multi-agent system. In this work, we propose a formal graphical and domain-independent language that can facilitate the identification of comprehensive...journal article 2019
- document
-
Zhang, J. (author), Heusdens, R. (author), Hendriks, R.C. (author)Power usage is an important aspect of wireless acoustic sensor networks (WASNs) and reducing the amount of information that is to be transmitted is one effective way to save it. In previous contributions, we presented sensor selection as well as rate distribution methods to reduce the power usage of beamforming algorithms in WASNs. Taking...conference paper 2019
- document
-
Hendriks, Kees Jan (author)The following graduation thesis "A change of state: A thermodynamic and cost-effective optimized Trombe wall based on latent heat storage (LHS) for year round application” aims to investigate and optimize the thermal energy performance of a Phase change material (PCM) Trombe wall to create an economically feasible product. This passive system...master thesis 2019
- document
-
van den Berg, Nadine (author), Hendriks, Onno (author), Boertje, Laurens (author)Houston, TX is known for being flood prone. Recent disasters such as Hurricane Harvey (2017) severly damaged this city. Houston’s flooding problem is caused by urban sprawl, the flatness of the city and the lack of policy. The urban sprawl increases the amount of concrete and limits the city’s natural drainage, the flatness of the city means the...student report 2019
- document
-
Zhang, J. (author), Koutrouvelis, A. (author), Heusdens, R. (author), Hendriks, R.C. (author)In this letter, we propose a decentralized framework for rate-distributed linearly constrained minimum variance (LCMV) beamforming in wireless acoustic sensor networks. To save the energy usage within the network, we propose to minimize the transmission cost and put a constraint on the noise reduction performance. Subsequently, we...journal article 2019
- document
-
Abdi, Bahareh (author), van der Veen, A.J. (author), de Groot, N.M.S. (author), Hendriks, R.C. (author)In this study, we propose a novel approach for estimation of local activation times (LATs) in fractionated electrograms. Using an electrophysiological tissue model, we first formulate the electrogram array as a convolution of transmembrane currents with a distance kernel. These currents are more local activities and less affected by the...conference paper 2019
- document
-
Hendriks, M.H.P. (author), van der Kolk, E. (author)The temperature dependent luminescence properties of Yb2+ doped in NaI, SrI2 and LaI3 powders, prepared by a fast synthesis method involving the rapid melting and quenching in vacuum are reported. The 4f→5d excitation and emission spectra obtained for SrI2:Yb2+ were found to be in accordance with earlier work validating the synthesis methods. In...journal article 2019
- document
-
Xia, Y. (author), Wu, Yue (author), Hendriks, M.A.N. (author)In current optimization methods for free-form shells, the shape and topology are usually optimized separately. These methods are based on the assumption that the shape and topology of a shell influence each other only slightly, but this is not always correct. Moreover, different parameterization models are used in the shape optimization and...journal article 2019
- document
-
Pari, M. (author), Hendriks, M.A.N. (author), Rots, J.G. (author)Sequentially linear analysis (SLA), a non-incremental-iterative approach towards finite element simulation of quasi-brittle materials, is based on sequentially identifying a critical integration point in the model, to reduce its strength and stiffness, and the associated critical load multiplier (λ <sub>crit</sub> ), to scale the linear...journal article 2019
- document
-
Abdi, Bahareh (author), Hendriks, R.C. (author), van der Veen, A.J. (author), de Groot, N.M.S. (author)Diagnosis and treatment of atrial fibrillation can benefit from various signal processing approaches employed on atrial electrograms. However, the performance and interpretation of these approaches get highly degraded by far-field ventricular activities (VAs) that distort the morphology of the pure atrial activities (AAs). In this study, we...conference paper 2019
- document
-
Shamsutdinova, Guzel (author), Hendriks, M.A.N. (author), Jacobsen, Stefan (author)Topography studies of concrete-ice abrasion were made to proceed in our understanding of the mechanisms of concrete wear by ice on Arctic offshore structures. The effects on various initial surfaces of a B75 normal-weight concrete (smooth, rough, sawn) and on the sawn surface of a LB60 lightweight concrete were studied during concrete-ice...journal article 2019
- document
-
Koutrouvelis, A. (author), Hendriks, R.C. (author), Heusdens, R. (author), Jensen, Jesper (author)One of the biggest challenges in multimicrophone applications is the estimation of the parameters of the signal model, such as the power spectral densities (PSDs) of the sources, the early (relative) acoustic transfer functions of the sources with respect to the microphones, the PSD of late reverberation, and the PSDs of microphone-self noise...journal article 2019
- document
-
Bruijn, Willem E.L. (author), Rip, Jolien (author), Hendriks, Antoon J.H. (author), van Gelder, P.H.A.J.M. (author), Jonkman, Sebastiaan N. (author)A marine project consists of series of operations, with each operation subject to a predefined operational limit and duration. If actual weather conditions exceed the operational limit, the operation cannot be executed and hence downtime occurs. An accurate assessment of uncertainties and the expected downtime during a marine project is...journal article 2019
- document
-
Tan, Reignard (author), Hendriks, M.A.N. (author), Geiker, M. (author), Kanstad, T. (author)The modified cracked membrane model (MCMM) presented in this paper was formulated to facilitate a mechanical calculation model that predicts crack widths in reinforced concrete (RC) structures subjected to in-plane loading for all cracking stages. It was formulated using the basic concepts of the existing cracked membrane model (CMM)....journal article 2019
- document
-
van Duin, Ron (author), Wiegmans, B. (author), Tavasszy, Lorant (author), Hendriks, Birgit (author), He, Yunzhu (author)Five years ago the project Cargo Hitching started with the goal to use the unused capacity of public transport passenger vehicles for freight and parcel transport. Like many new city logistics initiatives it is a difficult challenge to setup a profitable private business model. A rural pilot project was developed in the East of the Netherlands,...journal article 2019