"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:20489f00-ecb8-4a6e-94da-f2c0a11344bf","http://resolver.tudelft.nl/uuid:20489f00-ecb8-4a6e-94da-f2c0a11344bf","From Design to Management: Exploring BIM’s Role across Project Lifecycles, Dimensions, Data, and Uses, with Emphasis on Facility Management","Altwassi, Esraa J. (Istanbul Okan University); Aysu, Emre (Istanbul Okan University); Ercoskun, Kerem (Istanbul Okan University); Abu-Raed, A.S.I. (TU Delft Heritage & Architecture; American University of Ras Al Khaimah)","","2024","The importance of Building Information Modelling (BIM) in construction and facility operation is unquestionable, but there is a clear discrepancy between the data included in as-built BIM models and the expected use specified by customers. This disparity presents significant obstacles in properly using BIM for facility management and operational operations. The main goal of this research is to suggest inventive and pragmatic approaches that successfully address the discrepancy between the actual BIM model data, with a specific emphasis on COBie dataset, and the intended BIM applications outlined by stakeholders in the Employer’s Information Requirement (EIR) for facility management and operation. The study methodology is based on a comprehensive examination of current literature, demo case studies, as well as standards pertaining to BIM data, COBie.Type, and EIR requirements. The results of this study consist of a collection of standards, procedures, and suggested practices specifically designed to improve the utilization of as-built BIM model data for facility management and operation. These will closely correlate with the BIM applications stated by the client. Furthermore, the project seeks to enhance industry norms and practices, promoting enhanced cooperation and information sharing among stakeholders. This research has also investigated the efficiency of Solibri Model Checker (SMC) to validate the COBie type and component information provided by COBie.","building information modelling; COBie.Type; employer’s information requirement; facility management","en","journal article","","","","","","","","","","","Heritage & Architecture","","",""
"uuid:6c35dcd3-b6e6-4e51-ae21-19c9bef49998","http://resolver.tudelft.nl/uuid:6c35dcd3-b6e6-4e51-ae21-19c9bef49998","Digital twin application in heritage facilities management: systematic literature review and future development directions","Hou, H. (The Hong Kong Polytechnic University); Lai, Joseph H.K. (The Hong Kong Polytechnic University); Wu, Hao (University of Melbourne); Wang, T. (TU Delft Design & Construction Management)","","2023","This paper aims to investigate the theoretical and practical links between digital twin (DT) application in heritage facilities management (HFM) from a life cycle management perspective and to signpost the future development directions of DT in HFM.
This state-of-the-art review was conducted using a systematic literature review method. Inclusive and exclusive criteria were identified and used to retrieve relevant literature from renowned literature databases. Shortlisted publications were analysed using the VOSviewer software and then critically reviewed to reveal the status quo of research in the subject area.
The review results show that DT has been mainly adopted to support decision-making on conservation approach and method selection, performance monitoring and prediction, maintenance strategies design and development, and energy evaluation and management. Although many researchers attempted to develop DT models for part of a heritage building at component or system level and test the models using real-life cases, their works were constrained by availability of empirical data. Furthermore, data capture approaches, data acquisition methods and modelling with multi-source data are found to be the existing challenges of DT application in HFM.
In a broader sense, this study contributes to the field of engineering, construction and architectural management by providing an overview of how DT has been applied to support management activities throughout the building life cycle. For the HFM practice, a DT-cum-heritage building information modelling (HBIM) framework was developed to illustrate how DT can be integrated with HBIM to facilitate future DT application in HFM. The overall implication of this study is that it reveals the potential of heritage DT in facilitating HFM in the urban development context.","Literature review; Digital twin; Built environment; Heritage life cycle; Facilities management","en","review","","","","","","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.","","2023-09-28","","","Design & Construction Management","","",""
"uuid:4f733b94-1d89-4967-b97a-83b7ed60dc7c","http://resolver.tudelft.nl/uuid:4f733b94-1d89-4967-b97a-83b7ed60dc7c","Proceedings of the 22nd EuroFM Research Symposium","","Jylhä, Tuuli (editor); Danivska, V. (editor)","2023","The conference theme, 'Shaping the Next Generation of FM,' emphasizes the need for Facility Management (FM) to adapt to transformations in education, research, industry, and the broader FM community. These transformations encompass innovations and developments in FM, leadership and management practices, and sustainable FM. Aligned with this theme, the papers included in the proceedings focus on the topics of digitalization, circularity, and learning spaces.","Facilities management; Workplace management; real estate management","en","book","EuroFM","","","","","","","","","","Real Estate Management","","",""
"uuid:21582e32-0928-419c-b1de-ef59d037ad45","http://resolver.tudelft.nl/uuid:21582e32-0928-419c-b1de-ef59d037ad45","Algorithms for partially robust team formation","Schwind, Nicolas (National Institute of Advanced Industrial Science and Technology (AIST)); Demirović, E. (TU Delft Algorithmics); Inoue, Katsumi (National Institute of Informatics; Graduate University for Advanced Studies (SOKENDAI)); Lagniez, Jean Marie (Université d’Artois)","","2023","In one of its simplest forms, Team Formation involves deploying the least expensive team of agents while covering a set of skills. While current algorithms are reasonably successful in computing the best teams, the resilience to change of such solutions remains an important concern: Once a team has been formed, some of the agents considered at start may be finally defective and some skills may become uncovered. Two recently introduced solution concepts deal with this issue proactively: 1) form a team which is robust to changes so that after some agent losses, all skills remain covered, and 2) opt for a recoverable team, i.e., it can be ""repaired"" in the worst case by hiring new agents while keeping the overall deployment cost minimal. In this paper, we introduce the problem of partially robust team formation (PR–TF). Partial robustness is a weaker form of robustness which guarantees a certain degree of skill coverage after some agents are lost. We analyze the computational complexity of PR-TF and provide two complete algorithms for it. We compare the performance of our algorithms with the existing methods for robust and recoverable team formation on several existing and newly introduced benchmarks. Our empirical study demonstrates that partial robustness offers an interesting trade-off between (full) robustness and recoverability in terms of computational efficiency, skill coverage guaranteed after agent losses and repairability. This paper is an extended and revised version of as reported by (Schwind et al., Proceedings of the 20th International Conference on Autonomous Agents and Multiagent Systems (AAMAS’21), pp. 1154–1162, 2021).","Anytime algorithm; Computational complexity; Facility location; Partial robustness; Resilience; Robustness; Team formation","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.","","2023-10-30","","","Algorithmics","","",""
"uuid:dffca610-7c2e-4036-9363-8064489c8461","http://resolver.tudelft.nl/uuid:dffca610-7c2e-4036-9363-8064489c8461","Bi-sided facility location problems: an efficient algorithm for k-centre, k-median, and travelling salesman problems","DavoodiMonfared, M. (TU Delft Transport and Logistics; Institute for Advanced Studies in Basic Sciences, Zanjan; Helmholtz Zentrum Dresden Rossendorf); Rezaei, J. (TU Delft Transport and Logistics)","","2023","This study introduces a general framework, called Bi-sided facility location, for a wide range of problems in the area of combined facility location and routing problems such as locating test centres and designing the network of supermarkets. It is based on a multi-objective optimisation model to enhance the service quality which the clients received, called client-side, and enhance the interconnection quality and eligibility among the centres, called center-side. Well-known problems such as k-median and k-centre for the client-side and the travelling salesman problem for the centre-side are taken into account in this paper. After discussing the complexity of this kind of combination, we propose a heuristic approximation algorithm to find approximation Pareto-optimal solutions for the problem. The algorithm is an efficient local search utilising geometric objects such as the Voronoi diagram and Delaunay triangulation as well as algorithms for computing approximation travelling salesman tour. In addition to the comprehensive theoretical analysis of the proposed models and algorithm, we apply the algorithm to different instances and benchmarks, and compare it with NSGA-II based on set coverage and spacing metrics. The results confirm the efficiency of the algorithm in terms of running time and providing a diverse set of efficient trade-off solutions. Highlights: Introducing a general bi-side location model considering centres and clients’ utilities Discussing and proving the NP-hardness of the model in the general framework Considering two instances; k-centre and k-median for client-side and TSP for centre-side Proposing an efficient geometric-based algorithm for solving the problems Implementing, testing, and comparing the proposed algorithm on several benchmarks.","approximation; connected facility location; Facilities planning; local search; routing; travelling salesman problem","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.","","2024-01-18","","","Transport and Logistics","","",""
"uuid:f1a153d9-5dff-4ef9-9029-00a815b4b43b","http://resolver.tudelft.nl/uuid:f1a153d9-5dff-4ef9-9029-00a815b4b43b","A typology for the university campus as a living lab for Facility Management education and research","van Tankeren, Wouter (Breda University of applied sciences); Danivska, Vitalija (Breda University of applied sciences); Smit, Bert (Breda University of applied sciences)","","2022","Background and aim - The university campus is a built environment facilitating activities centred around learning and knowledge development. This confluence of activities makes the university campus uniquely suited to bring together stakeholders and to generate meaningful experiences to not only learn about but also further develop the facilitation of such experiences in the Facility Management (FM) discipline. This study aims to lower thresholds for universities using their campus as an integral part of FM education and research. Originality - This paper introduces a typology for FM focused campus living labs (CLL) to help specify university administrators’ motives towards implementing living labs on campus. Methods / Methodology - A conceptual FM CLL typology was developed through literature review on living labs and adapted for use in a FM context. Results - Four types of FM CLL are suggested primarily based on the distinct purpose, the stakeholder mix, initiator role(s), and the desired/expected output: (1) Learning company for practical education, (2) Incubator for systems thinking, (3) Test lab as a R&D test bed, and (4) Innovation hub for knowledge development. Practical or social implications - This paper provides administrators of higher education institutions with FM related programmes a typology which can aid them in aligning organisation objectives with the specific purposes for using the campus as a living lab for FM education/innovation. In time, this can help administrators/educators to facilitate more active/experiential learning activities, while also providing researchers with opportunities to develop knowledge of FM (practices). Type of paper - Conceptual research paper (full).","Campus Living Lab; Facility Management; Living Lab; Higher Education","en","conference paper","","","","","","","","","","","","","",""
"uuid:daff945a-c7d0-4b1a-9cf3-ecfe45794c65","http://resolver.tudelft.nl/uuid:daff945a-c7d0-4b1a-9cf3-ecfe45794c65","Digital trends in FM - Awareness gap between end users and service providers","Vega Sanchez, Sergio (UPM Universidad Politéchnica De Madrid,); Homann, Klaus (Baden-Württemberg Cooperative State University Stuttgart); Privenau, Jacqueline (Baden-Württemberg Cooperative State University Stuttgart); Säteri, Jorma (Metropolia University of Applied Sciences); Martinez, David (FMHOUSE)","","2022","Background and aim - Emerging digital technologies are defining the future of FM. In this process of transformation, stakeholders involved must ensure balanced development. This paper presents the results of an extensive survey on the perception of digital trends in FM. Purpose of the survey was to identify possible awareness gaps between end users and service providers regarding the significance of different emerging digital technologies. Methods / Methodology - The nature of the research is explorative. Departing from an intensive literature review and investigation about key digital trends for FM, an online survey was designed and conducted, to collect qualitative and quantitative data from practice and academia. The survey drew nearly 4.000 responses from 104 countries. Industry data is segmented between service providers and end users. Based on an extensive database and selected indicators/indexes, a systematic analysis of individual technologies and stakeholder profiles was conducted. Results - Results provide data to illustrate differences in perception between end users and service providers for 25 selected technologies, identified on literature review. Representative indicators have been developed and applied to analyse the level of digital awareness, digital interest, use of technologies, and level of maturity of these technologies. Originality - The paper offers a comprehensive international analysis on digital trends in FM and gaps in awareness, usage, and interest between end users and service providers. Practical or social implications - Digitalisation in Facility Management industry has a very important development potential for business, and knowledge and awareness about digitalization trends is needed to foster its implementation and improve business opportunities. Type of paper Research paper","Facility Management; Digital Transformation; Digital Technologies; Service Providers; End Users","en","conference paper","","","","","","","","","","","","","",""
"uuid:e0a0595d-1c5d-4edd-b1a0-9e9dcd99ddc6","http://resolver.tudelft.nl/uuid:e0a0595d-1c5d-4edd-b1a0-9e9dcd99ddc6","The value of FM for a healthy urban environment; application of the FM Value Map to Urban FM","Wijnja, Jaap (Hanze University of Applied Sciences Groningen); Nijkamp, Jeannette (Hanze University of Applied Sciences Groningen)","","2022","Background and aim - Facility management is the art of facilitating the core process of a company, providing an inspiring and healthy environment for both employees and clients. When the perspective would be broadened from healthy buildings to healthy cities, what value could be added by an “Urban FM” approach, facilitating living in a city, striving to offer a healthy and inspiring urban environment? In 2010 the FM Value Map was introduced, offering a conceptual framework that can be used in general, to provide a better understanding of the value and contributions of FM to a business and its surroundings. The aim of this paper is to discuss if the FM Value Map can also be used as a conceptual framework to understand and explain how Urban FM can contribute to a healthy and inspiring urban environment. Methods - The FM Value Map was applied to the Molukkenpark, an urban park in a Groningen neighbourhood. To fill in the model, desk research was combined with the findings from interviews and attentive observations of phenomena related to facility management and management of the urban environment. Results - Insight into the applicability of the FM Value Map from an Urban FM perspective. Originality - This is the first time that the FM Value Map is tested concerning Urban FM. Practical or social implications - The results are relevant for the development of the (Urban) FM profession and the curricula of education in the fields of FM and the built environment. Type of paper - Research paper (short).","Urban management; Facility management; Urban facility management; Healthy cities; City Parks; Added value; FM Value Map","en","conference paper","","","","","","","","","","","","","",""
"uuid:4235dcc0-9414-4b50-ad78-b900504f402b","http://resolver.tudelft.nl/uuid:4235dcc0-9414-4b50-ad78-b900504f402b","BIM-based information model for the provision of the demandoriented facility management services janitorial cleaning","Wills, Nadine (Technische Hochschule Mittelhessen); Díaz, Joaquín (Technische Hochschule Mittelhessen)","","2022","Background and aim - Facility management (FM) refers to multidisciplinary activities pertaining to performance-based or results-based delivery. Although results-based delivery provides economic benefits, missing definitions of the demands on executing facility services (FS) present a challenge to contractors. Existing sensor-based systems for identifying the demand of FS require building-relevant information. Building information modeling (BIM) offers the possibility of creating FM-relevant information as early as the building planning phase. While not all data from the planning phase are relevant for executing FS, we aim to present a BIM-based information model for the sensor-based determination of executing FS. Methods / Methodology - This research focuses on the FS of janitorial cleaning. First, an analysis of contract specifications is conducted to identify demand orientation in tendering and awarding processes. Next, the information required for the execution of FS is defined, structured, and constituted as an information model. The model includes interfaces for implementing a sensor-based determination of executing FS. Results - The result is an information model containing all the required information to provide effective FS. The linking of the individual information structures of the model forms the basis of using sensorbased methods to determine the demands of FS demand-based-delivery. Practical or social implications - Information on the demand and location of a service provision is necessary to determine the requirements of FS as well as to commission, perform, and document activities. Different stakeholders can use the developed information model. By the model, the required information is already defined in the planning phase of a building, which minimizes the risk of information loss. Type of paper - Research paper (full).","janitorial cleaning; BIM; demand-oriented FM; soft facility service delivery","en","conference paper","","","","","","","","","","","","","",""
"uuid:4b686b2d-ab96-492d-afae-9059f803aa70","http://resolver.tudelft.nl/uuid:4b686b2d-ab96-492d-afae-9059f803aa70","Principals and Suggestions for Sustainable Materials Management within Facility Management","Wissingh, Thomas (The Hague University of Applied Sciences); Kuijlenburg, Rachel (The Hague University of Applied Sciences); Joosstens, Frans (The Hague University of Applied Sciences); Poldner, Kim, (The Hague University of Applied Sciences); Mobach, Mark (Hanze University of Applied Sciences)","","2022","Background and aim - Many countries signed the Paris Agreement to mitigate global average temperature rise. In this context, Dutch government decided to realize a reduction of 50% using resources and raw materials in 2030. This paper explores how practice-based research into facility operations can contribute to this aim. Methods / Methodology - Practice-based research which includes direct observations, desk research, and participatory action research. Results - This explorative research presents principles and suggestions for facility managers and procurement managers on how they can embed sustainable materials management in the organisation and how to take control of waste. The proposed suggestions are derived from practice-based research and presented as topics of attention for facility professionals. Originality - Within education of Dutch universities of applied sciences and daily professional facility practices, the phenomenon of materials management is underexposed. To contribute to the national and international climate objectives, (future) facility professionals need better support to reduce waste. Bachelor students were involved throughout this research. This approach gave refreshing insights into waste at the end of the supply chain (control separation units) that can improve informed decisionmaking at the beginning of the supply chain. Practical or social implications - Facility management professionals have an important role to play in the mitigation of global average temperature rise, because of their leading role in procurement, service operations, and materials management. However, they struggle to find sustainable solutions. This paper seeks to inspire professionals with interventions that have proven effectiveness on the reduction of waste. Type of paper - Short research paper.","Circularity; Facility Management; Materials Management; Procurement; Sustainability; Supply Chain Management","en","conference paper","","","","","","","","","","","","","",""
"uuid:7001767d-0ba1-4aca-abd2-613ccb2f7456","http://resolver.tudelft.nl/uuid:7001767d-0ba1-4aca-abd2-613ccb2f7456","Beyond Satisfaction - Internal Service Barometer for measuring customer satisfaction","Bernhold, Torben (FH Münster); Wiesweg, Niklas (FH Münster); Löhmer, Thomas (KPMG AG Wirtschaftsprüfungsgesellschaft); Lill, Susanne (KPMG AG Wirtschaftsprüfungsgesellschaft)","","2022","Background and aim - The objective and research question is to measure the satisfaction of internal customers with various real estate services in the context of the operational utilization phase. Methods / Methodology - Methodologically, the study is based on the context-related application and use of the structural equation model for measuring internal customer satisfaction. In this context, a questionnaire-based study was carried out at KPMG Germany with over 2,800 respondents and the respective satisfaction levels along various service lines were measured and evaluated. Results - The results suggest a significant and clear causal relationship between internal service quality and internal customer satisfaction. The service quality - regardless of the service line considered in the real estate service area - is also significantly responsible for the internal recommendation rate. The results are thus able to measure the internal customer satisfaction of CREM services in all companies and internal organizational units and to include it as an integral component in the description and measurement of added value. The potential uses in the future are complex and range from the creation of a benchmark to the use within the framework of service level agreements and the linking of internal and external customer satisfaction. Practical or social implications - The ""internal"" customer satisfaction is mostly a direct part of the target system of a CREM organization. Against this background, every CREM can use the basic structure of the model to measure, evaluate and optimize satisfaction - as a component of the CREM added value. Type of paper - Full research paper.","facility services; Structural equation; internal service barometer; customer satisfaction","en","conference paper","","","","","","","","","","","","","",""
"uuid:fa621939-6b12-4140-b72e-82b407519e3d","http://resolver.tudelft.nl/uuid:fa621939-6b12-4140-b72e-82b407519e3d","Value-sensitive design & management of buildings and facilities","van der Voordt, Theo (TU Delft Real Estate Management)","Rocco, Roberto (editor); Thomas, Amy (editor); Novas-Ferradás, María (editor)","2022","Architectural design may be defined as a synthesis of form, function, and technology, in a particular context, taking into account legal and financial preconditions. This book shows the need to also incorporate societal values. In the area of Corporate Real Estate Management (CREM) and Facilities Management (FM), a growing awareness comes to the fore, how buildings, facilities, and services can add value for clients, end-users, other stakeholders, and society as a whole. Adding value through well-thought design and management choices in the development of new buildings or interventions in buildings-in-use regards its contribution to the fulfilment of organisational objectives, end-user needs, interests of other stakeholders, and societal values. This chapter aims to connect both worlds by presenting findings from the CREM/FM field that may be incorporated in architectural design. It discusses twelve types of added value, possible conflicts and synergy between different values, and criteria for prioritisation. It also presents a step-by-step model to support value adding design and management processes. Incorporating societal values and values of clients and end-users is a prerequisite for socially responsible and user-centred design and management. Teaching students this way may help to provide a sustainable built environment that fits with people’s needs and interests. The chapter ends with some suggestions on how to teach value-sensitive design and management of buildings and facilities.","Corporate Real Estate; facilities; user-centred; societal values; priorities","en","book chapter","TU Delft OPEN Publishing","","","","","","","","","","Real Estate Management","","",""
"uuid:b50c0aa0-a733-4649-88b7-8b29c3bebfcd","http://resolver.tudelft.nl/uuid:b50c0aa0-a733-4649-88b7-8b29c3bebfcd","A review on indoor environmental quality in sports facilities: Indoor air quality and ventilation during a pandemic","Zhang, D. (TU Delft Indoor Environment); Ortiz, Marco A. (TU Delft Indoor Environment); Bluyssen, P.M. (TU Delft Indoor Environment)","","2022","Because of COVID-19, the indoor environmental quality (IEQ) in sports facilities has been a concern to environmental health practitioners. To develop an overall understanding of the available guidelines and standards and studies performed on IEQ in sports facilities, an extensive literature study was conducted, with the aim of identifying: (1) indicators that are being used to assess IEQ in different sports facilities; (2) indicators that are potentially interesting to be used to assess indoor air, in particular; (3) gaps in knowledge to determine whether sports facilities are safe, healthy and comfortable for people to stay and perform their activities. The outcome indicates that most current standards and previous investigations on IEQ in sports facilities mainly focused on dose-related indicators (such as ventilation rate), while building-related indicators (such as ventilation regime) and occupant-related indicators (such as IEQ preferences) were rarely considered. Little attention is given to the fact that ventilation systems may play an important role in the air quality of the location, and few investigations have been performed on the transmission of SARS-CoV-2. This study recommends more research into both occupant and building-related indicators as well as cross-modal effects between various IEQ factors for developing future standards on sports facilities.","sports facilities; indoor air quality; indoor environmental quality; ventilation; comfort; health","en","journal article","","","","","","","","","","","Indoor Environment","","",""
"uuid:ae92649f-b102-4414-a537-a1e7bcf2256c","http://resolver.tudelft.nl/uuid:ae92649f-b102-4414-a537-a1e7bcf2256c","Impact of sink design on bacterial transmission from hospital sink drains to the surrounding sink environment tested using a fluorescent marker","Pirzadian, J. (Erasmus MC); Souhoka, T. (TU Delft Applied Ergonomics and Design; Productzaken, Den Haag); Herweijer, M. (Wiegerinck, Arnhem); van Heel, M.E. (Erasmus MC); van Wamel, W. J.B. (Erasmus MC); Goossens, R.H.M. (TU Delft Human-Centered Design; TU Delft Applied Ergonomics and Design); Severin, J. A. (Erasmus MC); Vos, M. C. (Erasmus MC)","","2022","In hospitals, sinks act as reservoirs for bacterial pathogens. To assess the extent of splashing, fluorescein dye was added to four hospital sinks previously involved in pathogen dispersal to the environment and/or transmission to patients, and one sink that was not. Applying dye to the p-trap or tailpiece did not result in any fluorescent droplets outside of the drain. When applied to the drain, droplets were found in all but one wash basin, and this was more common in the absence of a drain plug. Sink design considerations to install drain plugs, reduce dripping and offset the tap may help to prevent transmission from drains.","Biofilm; Health facility environment; Healthcare-associated infections; Infection control; Pathogen transmission; Pseudomonas aeruginosa","en","journal article","","","","","","","","","","Human-Centered Design","Applied Ergonomics and Design","","",""
"uuid:c537645d-dc43-4895-99bf-86b8e90a3810","http://resolver.tudelft.nl/uuid:c537645d-dc43-4895-99bf-86b8e90a3810","Empirical validation of co-simulation models for adaptive building envelopes","Borkowski, Esther (University College London (UCL); ETH Zürich); Luna-Navarro, Alessandra (TU Delft Architectural Technology; TU Delft Structural Design & Mechanics; University of Cambridge); Michael, Michalis (University of Cambridge); Overend, M. (TU Delft Architectural Technology); Rovas, Dimitrios (University College London (UCL)); Raslan, Rokia (University College London (UCL))","","2022","The thermal performance of adaptive building envelopes can be evaluated using building performance simulation tools. Simulation capabilities and accuracy in predicting the dynamic behaviour of adaptive building envelopes can be enhanced through co-simulation. However, it is unclear how accurately co-simulation can predict the performance of adaptive building envelopes and how the accuracy of adaptive building envelope models created in co-simulation setups can be assessed and validated. Therefore, this study presents new evidence on the empirical validation of co-simulation setups for adaptive building envelopes by establishing an assessment framework to determine the extent to which they can accurately represent the real world. The framework was applied to a case study to validate a co-simulation setup for a blind automation system using monitored data from MATELab, a full-scale outdoor test facility with realistic indoor and outdoor conditions. The validation of the co-simulation model of MATELab resulted in a median CV-RMSE index, a measure of model accuracy, of 5.9%. This indicates that the simulated data points have a small variance relative to the measured data points, showing a good model fit. In the future, modellers from the façade community can use the assessment framework for their co-simulation setups.","Adaptive building envelope; Co-simulation; Empirical validation; In-situ characterisation; Outdoor test facility","en","journal article","","","","","","","","","","","Architectural Technology","","",""
"uuid:a3797c15-150a-4e50-8fb4-51649f2e5f55","http://resolver.tudelft.nl/uuid:a3797c15-150a-4e50-8fb4-51649f2e5f55","Integration of 360-degree photography and virtual reality into museum storage facility design and education","loddo, M. (TU Delft Heritage & Values)","","2021","The use of digital tools in architecture and design education has been experimented with since the 1990s. The representation and communication of architectural narratives have been facing an unprecedented challenge in education, research, and practice during the past couple of years. This study investigates if using 360-degree photography/video and virtual reality (VR) technologies can be beneficial in architectural education. It focuses on museums and their storage facility areas and buildings, and looks at how digital technologies can raise awareness of these spaces and improve future museum designs. Starting from the fact that museums usually lack a proper storage area due to wrong designs, this project has investigated how the subject of museums is treated in design courses and, how VR representation could help students visualise and immersively navigate an area usually not known to many: the storage facility.
The digital representation of real objects and the environment using 360-degree photography/video and VR technologies were tested on international architecture students in The Netherlands and Germany. The research methods combined qualitative and quantitative approaches (e.g., interaction, surveys, interviews, and visual/narrative devices) related to museums and cyber-ethnography. The results demonstrate how the digital tools positively affected students’ consciousness of museums and architectural qualities and how they inspired students to explore the area further. Students became more engaged and motivated throughout the workshops; they were able to learn from and compare different resources, providing valuable quanti-qualitative results. This paper will describe how 360-degree photography and VR visualisation were integrated into the existing teaching approaches.","360-degree photography; Storage Facility; Virtual Reality; Virtual Navigation; Museums Design; Design Education","en","journal article","","","","","","","","","","","Heritage & Values","","",""
"uuid:a149e827-0db5-4677-aed3-b799849ebb7a","http://resolver.tudelft.nl/uuid:a149e827-0db5-4677-aed3-b799849ebb7a","Key Performance Indicators for Evaluation of Commercial Building Retrofits: Shortlisting via an industry survey","Ho, Man Ying (Annie) (The Hong Kong Polytechnic University); Lai, Joseph H.K. (The Hong Kong Polytechnic University); Hou, H. (The Hong Kong Polytechnic University); Zhang, D. (TU Delft Indoor Environment)","","2021","Key performance indicators (KPIs) are quintessentially useful for performance evaluation, but a set of pragmatic KPIs for holistic evaluation of retrofits for commercial buildings is hitherto unavailable. This study was conducted to address this issue. Built upon the findings of a systematic literature review and a focus group meeting in the earlier stages of the study, a questionnaire survey covering 19 KPIs for environmental (embracing energy), economic, health and safety, and users’ perspective evaluations of building retrofits was developed. Data of the survey, collected from facility management (FM) practitioners in Hong Kong, underwent a series of statistical analyses, including Kruskal–Wallis H test, Mann–Whitney U test, and Spearman Rank Correlation. The analysis results revealed the levels of importance of KPIs perceived by different groups of FM practitioners and the rankings of KPIs. Based upon these results, eight KPIs were shortlisted, which are energy savings, payback period, investment cost, actual-to-target ratio of the number of statutory orders removed, actual-to-target ratio of the number of accidents reduced, target indoor air temperature, target indoor air quality (IAQ) class, and target workplane illuminance. These KPIs serve as keystones for further development of an analytic evaluation scheme for commercial building retrofit performance assessment. The methodology of this study can also serve as a reference for similar KPI studies in other research domains","Facility management; KPI; Refurbishment; Renovation; Retrofit; Survey","en","journal article","","","","","","","","","","","Indoor Environment","","",""
"uuid:abbaa2ed-c708-47bf-8752-e19de4c39332","http://resolver.tudelft.nl/uuid:abbaa2ed-c708-47bf-8752-e19de4c39332","Identifying the main constructs for an interdisciplinary workplace management framework","Danivska, Vitalija (Aalto University); Appel-Meulenbroek, Rianne (Eindhoven University of Technology); Colenberg, S.E. (TU Delft Design Conceptualization and Communication)","Danivska, Vitalija (editor); Appel-Meulenbroek, Rianne (editor)","2021","This second book in the series focuses on the role of workplace management in the organization and the tasks that workplace management needs to consider. The 18 theories that are presented in this book and applied to workplace research discuss management aspects from the organization’s perspective or dive deeper into issues related to people and/or building management. They all emphasize that workplace management is a complex matter that requires more strategic attention in order to add value for various stakeholders. The final chapter of the book describes a first step towards integrating the presented theories into an interdisciplinary framework for developing a grand workplace management theory.","facilities management; Concept mapping; Theories","en","book chapter","Roudledge","","","","","","","","","","Design Conceptualization and Communication","","",""
"uuid:0929792e-984d-4caf-bd4b-0e848e73004c","http://resolver.tudelft.nl/uuid:0929792e-984d-4caf-bd4b-0e848e73004c","From XXS to XXL: Towards a typology of distribution centre facilities","Onstein, A.T.C. (TU Delft Transport and Logistics); Bharadwaj, I. (Student TU Delft); Tavasszy, Lorant (TU Delft Transport and Planning; TU Delft Transport and Logistics); van Damme, Dick A. (Hogeschool van Amsterdam); el Makhloufi, Abdel (Hogeschool van Amsterdam)","","2021","Distribution centres are becoming more and more relevant for spatial planning, due to their rapidly increasing size and number. There is little literature, however, that provides a generalized analysis of the size and functional attributes of distribution centres, and none that discusses the relationships between these attributes. Our aim is to fill this gap by providing new evidence and analysis to understand this relationship. We make use of an extensive database of 2888 DCs in the Netherlands to develop a new typology of DCs based on the geographical location of DCs, their functional attributes and client sector characteristics. The analysis shows that the context in which medium sized DCs are operating is more heterogeneous than in the case of very large and small size DCs. This study is a first attempt to analyse this relationship between facility size and functions based on a rich and extensive dataset of large population of DCs. The results can serve as input for further quantitative statistical analysis and international comparison.","Logistics facility; Distribution centre; Logistics function; Size typology","en","journal article","","","","","","","","","","","Transport and Logistics","","",""
"uuid:4990b05d-eaa8-447e-99fc-18ad306623d2","http://resolver.tudelft.nl/uuid:4990b05d-eaa8-447e-99fc-18ad306623d2","An electromagnetic physics constructor for low energy polarised X-/gamma ray transport in Geant4","Brown, J.M.C. (TU Delft RST/Medical Physics & Technology; University of Wollongong); Dimmock, Matthew R. (Monash University)","","2021","The production, application, and/or measurement of polarised X-/gamma rays are key to the fields of synchrotron science and X-/gamma-ray astronomy. The design, development and optimisation of experimental equipment utilised in these fields typically relies on the use of Monte Carlo radiation transport modelling toolkits such as Geant4. In this work the Geant4 “G4LowEPPhysics” electromagnetic physics constructor has been reconfigured to offer a best set of electromagnetic physics models for studies exploring the transport of low energy polarised X-/gamma rays. An overview of the physics models implemented in “G4LowEPPhysics”, and it's experimental validation against Compton X-ray polarimetry measurements of the BL38B1 beamline at the SPring-8 synchrotron (Sayo, Japan) is reported. “G4LowEPPhysics” is shown to be able to reproduce the experimental results obtained at the BL38B1 beamline (SPring-8) to within a level of accuracy on the same order as Geant4’s X-/gamma ray interaction cross-sectional data uncertainty (approximately ± 5 %).","Compton scattering; Gamma-ray astronomy; Geant4; Polarized gamma ray; Synchrotron radiation facility; X-ray astronomy","en","journal article","","","","","","","","","","","RST/Medical Physics & Technology","","",""
"uuid:88768dd9-b7cc-43a2-81bb-3557f4d728b6","http://resolver.tudelft.nl/uuid:88768dd9-b7cc-43a2-81bb-3557f4d728b6","Risk assessment of offshore fire accidents caused by subsea gas release","Li, Xinhong (Xi'an University of Architecture and Technology; Dalian University of Technology); Khan, Faisal (Memorial University of Newfoundland); Yang, M. (TU Delft Safety and Security Science; TU Delft Technology, Policy and Management); Chen, C. (TU Delft Safety and Security Science); Chen, Guoming (China University of Petroleum (East China))","","2021","Subsea gas release is an industrial hazard that can impose fire hazards on offshore facilities near the gas surfacing area. However, risk assessment of the fire caused by subsea gas release is challenged due to inadequate recognition of the knowledge of subsea gas release mechanism and resulting hazards. At present, minimal researches involving risk assessment of offshore fire resulting from a subsea gas release were reported, and this paper is an extension of the previous works on subsea gas behavior. This paper focuses on modeling fire risk on offshore facilities due to subsea gas release. A numerical simulation is carried out using the Computational Fluid Dynamic technique of Fire Dynamics Simulator (FDS) to analyze fire propagation characteristics and assess the impact of fire on personnel and assets. A probit model is adopted to calculate the probabilities of injury or death caused by fire hazards. This study also investigates the effect of wind speed, gas release rate and the distance between gas pool and platform on fire impacts and casualty probabilities. The present study can support safety measure design to mitigate or avoid the impacts of offshore fire events from subsea gas release.","Casualty probability; Offshore facility; Offshore fire; Risk assessment; Subsea gas release","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.","","2022-02-08","Technology, Policy and Management","","Safety and Security Science","","",""
"uuid:e1689df3-2d06-4e5c-9512-8899ee63a285","http://resolver.tudelft.nl/uuid:e1689df3-2d06-4e5c-9512-8899ee63a285","Supporting group decision makers to locate temporary relief distribution centres after sudden-onset disasters: A case study of the 2015 Nepal earthquake","Baharmand, Hossein; Comes, M. (TU Delft Transport and Logistics; TU Delft System Engineering; University of Agder); Lauras, Matthieu (Université de Toulouse)","","2020","In the humanitarian response, multiple decision-makers (DMs) need to collaborate in various problems, such as locating temporary relief distribution centres (RDCs). Several studies have argued that maximising demand coverage, reducing logistics costs and minimising response time are among the critical objectives when locating RDCs after a sudden-onset disaster. However, these objectives are often conflicting and the trade-offs can considerably complicate the situation for finding a consensus. To address the challenge and support the DMs, we suggest investigating the stability of non-dominated alternatives derived from a multi-objective model based on Monte Carlo Simulations. Our approach supports determining what trade-offs actually matter to facilitate discussions in the presence of multiple stakeholders. To validate our proposal, we extend a location-allocation model and apply our approach to an actual data-set from the 2015 Nepal earthquake response. Our analyses show that with the relative importance of covering demands ≤0.4, the trade-offs between logistics costs and response time affects the numbers and locations of RDCs considerably. We show through a small experiment that the outputs of our approach can effectively support group decision-making to develop relief plans in disasters response.","2015 Nepal earthquake; Group decision-making; Humanitarian response; Monte Carlo simulation; Multiobjective facility location","en","journal article","","","","","","","","","","","Transport and Logistics","","",""
"uuid:4d7a03a3-5b85-4dc7-9425-036559383ded","http://resolver.tudelft.nl/uuid:4d7a03a3-5b85-4dc7-9425-036559383ded","Dutch care environments for people with dementia: impressions from the perspectives of an architect and a gerontologist","Shannon, Kay (Auckland University of Technology); Jürgenhake, Birgit (TU Delft Space & Type)","","2020","Purpose: The purpose of this paper is to discuss Dutch innovative care environments for older people, including those living with dementia, from the perspectives or an architect and a social gerontologist. Design/methodology/approach: The authors visited three care environments for older people, each offering an innovative approach to living housing older people, including people with dementia. The settings are discussed from two disciplinary perspectives, facilitating an understanding of the influence of the built environment on daily life for residents. Findings: The three facilities were all architecturally varied and resembled “real” homes to varying degrees. Additionally, each entrance offered a different welcome to the external community, ranging from full accessibility to a closed and fortified appearance. Within each facility, the built environment afforded residents opportunities to participate in valued activities, including interacting with members of the wider community. Originality/value: The inclusion of two disciplinary perspectives offers a richer discussion of the physical and social aspects of the care environments that would be offered by one perspective alone.","Aged care facilities; Dementia care environments; Dementia care farm; Dementia village; Older people; Valued activities","en","journal article","","","","","","Accepted Author Manuscript","","","","","Space & Type","","",""
"uuid:980d5765-c103-4248-b683-f73157a44067","http://resolver.tudelft.nl/uuid:980d5765-c103-4248-b683-f73157a44067","Typology of value adding FM and CREM interventions","Jensen, Per Anker (Technical University of Denmark); van der Voordt, Theo (TU Delft Real Estate Management)","","2020","Purpose: The purpose of this paper is to present an empirical-based typology of facilities management (FM) and corporate real estate management (CREM) interventions that can add value to the core business of organisations and possibly the wider society. The typology is explained, elaborated and discussed with the aim to reach a deeper understanding of value adding management in the context of FM and CREM. Design/methodology/approach: The paper is based on FM and CREM literature, a survey with 15 expert interviews from six different European countries and cases with examples of interventions from earlier research. Findings: The typology consists of six types of interventions, some mainly product-related, some mainly process-related and some that can be both. Each type is underpinned by examples from a case company and from interviews. Research limitations/implications: The number of interviews is limited. The typology with related interventions is not necessarily complete. However, the typology is regarded to include the most important interventions in the current state of practice of FM and CREM. Practical implications: The typology provides an overview of the different ways FM and CREM can add value. The cases and examples can be used as inspiration for developing specific interventions in practice. Originality/value: The typology is the first to provide a classification of FM and CREM interventions. By integrating findings from interviews and case studies, this typology contributes to a better understanding and practicing of value adding management.","Added value; Corporate real estate management; Facilities management; Interventions; Typology; Value adding management","en","journal article","","","","","","Accepted Author Manuscript","","","","","Real Estate Management","","",""
"uuid:6abdaffa-7966-4e8c-931a-5aef7ccf5768","http://resolver.tudelft.nl/uuid:6abdaffa-7966-4e8c-931a-5aef7ccf5768","Productivity as a value parameter for FM and CREM","Jensen, Per Anker (Technical University of Denmark); van der Voordt, Theo (TU Delft Real Estate Management; Center for People and Buildings)","","2020","Purpose: This paper aims to investigate how facilities management (FM) and corporate real estate management (CREM) can add value to organisations by contributing to improved productivity of knowledge workers, and to explore interrelationships between productivity, employee satisfaction and other value parameters. Design/methodology/approach: This is a literature research of possible contributions of FM and CREM to improved labour productivity in relation to five activity areas of FM/CREM (portfolio management, project management, space and workplace management, property management and service management) and a first exploration of interrelationships between productivity and other value parameters. Findings: The findings indicate that FM and CREM most directly can contribute to productivity by space and workplace management that supports different types of work and organisational activities. Portfolio and project management can mostly contribute by providing appropriate locations, adjacency relations between different parts of the organisation and supporting process flow and logistics. Property management can contribute to productivity by ensuring business continuity and comfortable indoor climate. Service management can contribute by relieving staff from trivial tasks by efficient services and by providing exiting experiences. Productivity shows to be mainly positively related to satisfaction; insights into interrelationships with other value parameters are still limited. Practical implications: The results can be used to obtain a deeper understanding of how FM and CREM can add value to organisations by contributing to improved labour productivity. Practitioners can find inspiration on how to contribute to labour productivity and additional benefits within specific activity areas of FM and CREM. The exploration of interrelationships between productivity and other values can be used as input to a future research agenda. Originality/value: The paper adds new insights to the growing body of knowledge about how FM/CREM can contribute to increased labour productivity and how other value parameters may be interrelated with productivity.","Added value; Corporate real estate management; Facilities management; Interrelationships; Productivity; Value parameters","en","review","","","","","","Accepted Author Manuscript","","","","","Real Estate Management","","",""
"uuid:eb13c99a-2c54-43ef-b611-27d5a265694d","http://resolver.tudelft.nl/uuid:eb13c99a-2c54-43ef-b611-27d5a265694d","Smart campus tools 2.0 exploring the use of real-time space use measurement at universities and organizations","Valks, B. (TU Delft CRE Strategic Portfolio Management)","","2019","Purpose: The purpose of this study is to generate knowledge about the use of smart campus tools to improve the effective and efficient use of campuses. Many universities are facing a challenge in attuning their accommodation to organisational demand. How can universities invest their resources as effectively as possible and not in space that will be poorly utilized? The hypothesis of this paper is that by using smart campus tools, this problem can be solved. Design/methodology/approach: To answer the research question, previous survey at 13 Dutch universities was updated and compared with a survey of various universities and other organizations. The survey consisted of interviews with structured and semi-structured questions, which resulted in a unified output for 27 cases. Findings: Based on the output of the cases, the development of smart campus tools at Dutch universities was compared to that of international universities and other organizations. Furthermore, the data collection led to insights regarding the reasons for initiating smart campus tools, user and management information, costs and benefits and foreseen developments. Originality/value: Although the use of smart tools in practice has gained significant momentum in the past few years, research on the subject is still very technology-oriented and not well-connected to facility management and real estate management. This paper provides an overview of the ways in which universities and organizations are currently supporting their users, improving the use of their buildings and reducing their energy footprint through the use of smart tools.","Facilities management services; Public sector; Smart buildings; Space planning; Space utilization; Strategic facilities management","en","poster","","","","","","","","","","","CRE Strategic Portfolio Management","","",""
"uuid:8026f5b2-65f5-4d9d-bf51-9674b9740c1b","http://resolver.tudelft.nl/uuid:8026f5b2-65f5-4d9d-bf51-9674b9740c1b","Preference-based facility location for on-demand logistics","Paulusse, J.P.M. (Student TU Delft); Atasoy, B. (TU Delft Transport Engineering and Logistics); Maknoon, M.Y. (TU Delft Transport and Logistics); Rezaei, J. (TU Delft Transport and Logistics)","","2019","In the context of on-demand logistics systems, the facility location is becoming even more critical as demand characteristics and customer preferences are changing with respect to the location, time, customer segments etc. Classic facility location models do not take into account customer preferences when the set of facility locations are optimized and therefore the expected profit of the classic facility location models is not an accurate representation of reality. This paper develops a preference-based facility location model which incorporates customer preferences while maximizing the system-wide expected profit in the context of an on-demand logistics provider. The customers are first segmented based on historical data and segment specific preferences are estimated by logit mixture where we take into account heterogeneity within the segment. The performance of the preference-based facility location model is measured by total expected profit and consumer surplus. It is found that, the preference-based facility location model is not only a more accurate representation of reality but also has the potential to increase the expected profit compared to typical facility location models.","Customer preferences; customer segmentation; facility location; preference-based facility location; on-demand logistics","en","conference paper","","","","","","Accepted Author Manuscript","","","","","Transport Engineering and Logistics","","",""
"uuid:e71a9397-3ff0-41a0-a27b-4d521c39d16d","http://resolver.tudelft.nl/uuid:e71a9397-3ff0-41a0-a27b-4d521c39d16d","Smart campus tools 2.0 exploring the use of real-time space use measurement at universities and organizations","Valks, B. (TU Delft CRE Strategic Portfolio Management); Arkesteijn, M.H. (TU Delft Real Estate Management); den Heijer, A.C. (TU Delft Real Estate Management)","","2019","Purpose: The purpose of this study is to generate knowledge about the use of smart campus tools to improve the effective and efficient use of campuses. Many universities are facing a challenge in attuning their accommodation to organisational demand. How can universities invest their resources as effectively as possible and not in space that will be poorly utilized? The hypothesis of this paper is that by using smart campus tools, this problem can be solved. Design/methodology/approach: To answer the research question, previous survey at 13 Dutch universities was updated and compared with a survey of various universities and other organizations. The survey consisted of interviews with structured and semi-structured questions, which resulted in a unified output for 27 cases. Findings: Based on the output of the cases, the development of smart campus tools at Dutch universities was compared to that of international universities and other organizations. Furthermore, the data collection led to insights regarding the reasons for initiating smart campus tools, user and management information, costs and benefits and foreseen developments. Originality/value: Although the use of smart tools in practice has gained significant momentum in the past few years, research on the subject is still very technology-oriented and not well-connected to facility management and real estate management. This paper provides an overview of the ways in which universities and organizations are currently supporting their users, improving the use of their buildings and reducing their energy footprint through the use of smart tools.","Facilities management services; Public sector; Smart buildings; Space planning; Space utilization; Strategic facilities management","en","journal article","","","","","","","","","","","CRE Strategic Portfolio Management","","",""
"uuid:1d1037f0-7cdb-45da-b0db-89b456bea5ba","http://resolver.tudelft.nl/uuid:1d1037f0-7cdb-45da-b0db-89b456bea5ba","A Review of the Principles of Designing Smart Cyber-Physical Systems for Run-Time Adaptation: Learned Lessons and Open Issues","Tavčar, Jože (University of Ljubljana); Horvath, I. (TU Delft Cyber-Physical Systems)","","2019","Smart cyber-physical systems (S-CPSs) are complex engineered systems empowered by cyber-physical computing and equipped with the capability of reasoning, learning, adapting, and evolving. As an outcome of data-driven dynamic computing, reasoning capabilities, and the run-time obtained own knowledge, nonlinear and emergent behavior of S-CPSs whilst in operation is an open issue, not experienced in the case of conventional technical systems. This paper analyzes the technical issues of run-time operation and emergent behavior of S-CPSs, reviews the current understanding and state of advancement in designing S-CPSs for run-time, explores the paradox, and issues of designing for run-time adaptation, and synthesizes some general principles that can be taken into consideration when addressing the challenges, first of all, in the context of advanced manufacturing systems. This paper introduces four levels of CPSs according to reasoning capabilities and adaptation freedom of systems, and recognizes the paradox that a system with a higher level of freedom requires a higher level of self-control and resource management according to the overall objective of operation. Specific and common design principles are presented and critically assessed for each advancement level of CPSs. The principles synthesized by the authors provide only a partial fulfillment of the generic need. The planned future research addresses these issues and proposes (largely implementation and application independent) genuine principles for system developers.","Cognition; Control systems; Cyber-physical systems; Design principles; Industries; industry 4.0; Manufacturing; Production facilities; Robots; run-time adaptation; self-adaptation; self-awareness; smart cyber-physical systems (S-CPSs)","en","journal article","","","","","","Accepted author manuscript","","","","","Cyber-Physical Systems","","",""
"uuid:d032bdfe-d791-4398-9fc5-005ebcbd600f","http://resolver.tudelft.nl/uuid:d032bdfe-d791-4398-9fc5-005ebcbd600f","A fuzzy multi-attribute HAZOP technique (FMA-HAZOP): Application to gas wellhead facilities","Cheraghi, Morteza (University of Tehran); Eslami Baladeh, Aliakbar (Amirkabir University of Technology); Khakzad, N. (TU Delft Safety and Security Science)","","2019","Hazard and Operability analysis (HAZOP) is a popular technique for hazard identification and risk ranking in hazardous facilities. Conventional HAZOP, however, has some drawbacks: (i) it considers a limited number of risk factors, i.e., only the frequency and the severity of hazards; (ii) it assumes equal weights for the risk factors, thus ranking low-probability high-consequence hazards equally important as high-probability low-consequence hazards; and (iii) it uses crisp and precise data which is rarely available or highly uncertain, especially in the case of complex oil and gas facilities.
The present study is an attempt to alleviate the foregoing drawbacks of conventional HAZOP via a Fuzzy Multi-Attribute HAZOP technique (FMA-HAZOP). To do this, Analytic Hierarchy Process (AHP) and the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) are used, both in a fuzzy environment, to determine the weight of risk factors and to prioritize the hazards. The application of the FMA-HAZOP on a gas wellhead facility shows that FMA-HAZOP presents a more transparent and more detailed information about the rank of hazards compared to conventional HAZOP.","Risk assessment; HAZOP; Gas wellhead facility; Fuzzy logic; TOPSIS; AHP","en","journal article","","","","","","","","2021-12-29","","","Safety and Security Science","","",""
"uuid:530ddd10-89b4-4845-a7a6-6ac3080013a8","http://resolver.tudelft.nl/uuid:530ddd10-89b4-4845-a7a6-6ac3080013a8","Bioethanol facility location selection using best-worst method","Kheybari, S. (TU Delft Transport and Logistics; Ferdowsi University of Mashhad); Kazemi, Mostafa (Ferdowsi University of Mashhad); Rezaei, J. (TU Delft Transport and Logistics)","","2019","One of the major factors in the success of renewable energy is finding a proper location for production facilities. At a national level, different parts of a country (e.g. provinces) can be seen as alternatives that can be assessed based on a set of criteria, and ranking them to identify the best location. The focus in this paper is on identifying the best location for the production of bioethanol. After a comprehensive literature review, an evaluation framework is proposed based on the three dimensions of sustainability (economic, environmental and social). Using data provided by a sample of experts in a developing country – Iran – and applying the best-worst method (BWM), a number of decision-making criteria are evaluated. Performance data involving the various provinces of Iran are collected from different sources. The performance data and the weights identified through BWM are used to calculate an overall score for each province, which is then used to rank the provinces, with the province of Khuzestan (closely followed by Tehran) being identified as the most suitable province for bioethanol production in Iran.","Best worst method; Bioethanol; BWM; Facility location selection; Renewable energy; Sustainability","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.","","2019-09-19","","","Transport and Logistics","","",""
"uuid:a4b4e58b-9f8b-4d6c-9e87-524364037639","http://resolver.tudelft.nl/uuid:a4b4e58b-9f8b-4d6c-9e87-524364037639","Impact of employee satisfaction with facilities on self-assessed productivity support","Groen, Brenda (Saxion University of Applied Sciences); van der Voordt, Theo (TU Delft Real Estate Management); Hoekstra, B.S. (TU Delft Real Estate Management); van Sprang, Hester (Saxion University of Applied Sciences)","","2019","Purpose: This paper aims to explore the relationship between satisfaction with buildings, facilities and services and perceived productivity support and to test whether the findings from a similar study of Batenburg and Van der Voordt (2008) are confirmed in a repeat study after 10 years with more recent data. Design/methodology/approach: Data were traced from a database with data on user satisfaction and perceived productivity support. These data were collected through the work environment diagnostic tool WODI light. The data include responses from 25,947 respondents and 191 organisations that have been analysed by stepwise multiple-regression analyses. Findings: In total 38% of the variation of office employees’ satisfaction with support of productivity can be explained by employee satisfaction with facilities, the organisation, current work processes and personal- and job-related characteristics. The most important predictor of self-assessed support of productivity is employee satisfaction with facilities. In particular, psychological aspects, i.e. opportunities to concentrate and to communicate, privacy, level of openness, and functionality, comfort and diversity of the workplaces are very important. The findings confirm that employee satisfaction with facilities correlates significantly with perceived productivity support. Other factors that are not included in the data set, such as intrinsic motivation, labour circumstances and human resource management may have an impact as well. Originality/value: This research provides a clear insight in the relation between employee satisfaction with facilities and the perceived support of productivity, based on survey data collected over almost 10 years in 191 organisations.","Employee satisfaction with facilities; Facility management; Office employees; Self-assessed productivity support; WODI; Workplace management","en","journal article","","","","","","Accepted Author Manuscript","","","","","Real Estate Management","","",""
"uuid:316e9790-cda2-4e57-b847-92ee235822cc","http://resolver.tudelft.nl/uuid:316e9790-cda2-4e57-b847-92ee235822cc","Integration von Energieflexibilität: ein Erfahrungsbericht von der Technischen Universität Delft","Mlecnik, E. (TU Delft Housing Management)","","2018","","energy flexibility; heat grids; Campus development; Facility Management; Asset Management; User Experience","de","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.","","2019-12-31","","","Housing Management","","",""
"uuid:1c4d9073-042e-4512-a404-8659cc889837","http://resolver.tudelft.nl/uuid:1c4d9073-042e-4512-a404-8659cc889837","Comparing population and incident data for optimal air ambulance base locations in Norway","Røislien, Jo (University of Stavanger; Norwegian Air Ambulance Foundation); van den Berg, Pieter L. (Erasmus Universiteit Rotterdam); Lindner, Thomas (Norwegian Air Ambulance Foundation; SAFER (Stavanger Acute Medicine Foundation for Education and Research) and Stavanger University Hospital); Zakariassen, Erik (University of Bergen); Uleberg, Oddvar (St. Olav's University Hospital); Aardal, K.I. (TU Delft Discrete Mathematics and Optimization; Centrum Wiskunde & Informatica (CWI)); van Essen, J.T. (TU Delft Discrete Mathematics and Optimization)","","2018","Background: Helicopter emergency medical services are important in many health care systems. Norway has a nationwide physician manned air ambulance service servicing a country with large geographical variations in population density and incident frequencies. The aim of the study was to compare optimal air ambulance base locations using both population and incident data. Methods: We used municipality population and incident data for Norway from 2015. The 428 municipalities had a median (5-95 percentile) of 4675 (940-36,264) inhabitants and 10 (2-38) incidents. Optimal helicopter base locations were estimated using the Maximal Covering Location Problem (MCLP) optimization model, exploring the number and location of bases needed to cover various fractions of the population for time thresholds 30 and 45 min, in green field scenarios and conditioned on the existing base structure. Results: The existing bases covered 96.90% of the population and 91.86% of the incidents for time threshold 45 min. Correlation between municipality population and incident frequencies was -0.0027, and optimal base locations varied markedly between the two data types, particularly when lowering the target time. The optimal solution using population density data put focus on the greater Oslo area, where one third of Norwegians live, while using incident data put focus on low population high incident areas, such as northern Norway and winter sport resorts. Conclusion: Using population density data as a proxy for incident frequency is not recommended, as the two data types lead to different optimal base locations. Lowering the target time increases the sensitivity to choice of data.","Air ambulance; Coverage; Facility location problem; HEMS; Incidents; MCLP; Population density","en","journal article","","","","","","","","","","","Discrete Mathematics and Optimization","","",""
"uuid:65e7bc5a-6aaf-4d91-bb58-cb5857196d7a","http://resolver.tudelft.nl/uuid:65e7bc5a-6aaf-4d91-bb58-cb5857196d7a","Design of a facility for studying shock-cell noise on single and coaxial jets","Guariglia, Daniel (von Karman Institute for Fluid Dynamics); Rubio Carpio, A. (TU Delft Aircraft Noise and Climate Effects); Schram, Christophe (von Karman Institute for Fluid Dynamics)","","2018","Shock-cell noise occurs in aero-engines when the nozzle exhaust is supersonic and shock-cells are present in the jet. In commercial turbofan engines, at cruise, the secondary flow is often supersonic underexpanded, with the formation of annular shock-cells in the jet and consequent onset of shock-cell noise. This paper aims at describing the design process of the new facility FAST (Free jet AeroacouSTic laboratory) at the von Karman Institute, aimed at the investigation of the shock-cell noise phenomenon on a dual stream jet. The rig consists of a coaxial open jet, with supersonic capability for both the primary and secondary flow. A coaxial silencer was designed to suppress the spurious noise coming from the feeding lines. Computational fluid dynamics (CFD) simulations of the coaxial jet and acoustic simulations of the silencer have been carried out to support the design choices. Finally, the rig has been validated by performing experimental measurements on a supersonic single stream jet and comparing the results with the literature. Fine-scale PIV (Particle Image Velocimetry) coupled with a microphone array in the far field have been used in this scope. Preliminary results of the dual stream jet are also shown.","Aeroacoustics; Coaxial jet; COMSOL Multiphysics; Dual stream jet; Facility design; PIV; Screech; Shock-cell noise; Supersonic jet noise","en","journal article","","","","","","","","","","","Aircraft Noise and Climate Effects","","",""
"uuid:9b1e3ea1-1b20-49a0-a58b-a14ca1bb2d35","http://resolver.tudelft.nl/uuid:9b1e3ea1-1b20-49a0-a58b-a14ca1bb2d35","New Model for Adding Value by FM and CREM","Jensen, Per Anker (Technical University of Denmark; Centre for Facilities Management - Realdania Research); van der Voordt, Theo (TU Delft Real Estate Management)","","2017","Model in four steps on how to add value to the organisation by interventions in buildings, facilities and services.","added value; Facilities management; Corporate Real Estate Management","en","journal article","","","","","","","","","","","Real Estate Management","","",""
"uuid:92de9758-318f-49b2-97d7-a16df2dc2cdc","http://resolver.tudelft.nl/uuid:92de9758-318f-49b2-97d7-a16df2dc2cdc","Facilities management and corporate real estate management: FM/CREM or FREM?","van der Voordt, Theo (TU Delft Real Estate Management)","","2017","Purpose: This paper aims to explore similarities and dissimilarities between facilities management (FM) and corporate real estate management (CREM) regarding its history and key issues, and whether the similarities may result in a further integration of FM and CREM. Design/methodology/approach: The paper is based on a review of FM and CREM literature, seven interviews with experienced academics and consultants and the long experience of the author as a researcher and teacher in accommodating people and activities. Findings: Both FM and CREM aim to support primary business processes by aligning the physical resources of organisations to the organisational strategies in order to contribute to organisational performance and to add value to the organisation. Efficiently and effectively supporting the primary activities and business purposes are key issues. Dissimilarities consider the focus on facilities and services (FM) versus that on buildings and real-estate portfolios (CREM), as well as a shorter time frame and high flexibility of facilities (FM) versus a long life cycle and rather static buildings (CREM). In spite of the differences, it is expected that both disciplines will be more integrated in the future. Research limitations/implications: The selection of key topics and key publications may be biased by the personal knowledge and European perspective of the author and the input from seven expert interviews. Practical implications: The common body of knowledge of FM and CREM may be used to improve both professions and disciplines and may result in a more integrated approach of facilities and real estate management (FREM). Originality/value: This paper combines insights from two related disciplines with different histories and focus points, and explores what they have in common and can learn from each other.","Added value; Alignment; Corporate real estate management; Facilities management; Performance; Strategy","en","journal article","","","","","","Accepted Author Manuscript","","","","","Real Estate Management","","",""
"uuid:71a350ce-4f74-4d0e-9a0c-7db2ba34ca9c","http://resolver.tudelft.nl/uuid:71a350ce-4f74-4d0e-9a0c-7db2ba34ca9c","Towards an Integrated Value Adding Management Model for FM and CREM","Jensen, Per Anker (Technical University of Denmark); van der Voordt, Theo (TU Delft Real Estate Management)","Kähkönen, Kalle (editor); Keinänen, Marko (editor)","2016","Purpose: To present an integrated process model of adding value by Facilities Management (FM) and Corporate Real Estate Management (CREM) that is a generalisation of existing conceptual frameworks and aims to be a basis for management of added value in practice.
Background: The growing research on the added value of FM and CREM over the last decade has resulted in the development of several conceptual frameworks and the collection of much empirical data in practice. However, the practical application of current knowledge has shown to be limited and difficult. The reasons seem to be that the different frameworks are too complex and lack of common terminology and clear operationalisations of intervention-impact relationships.
Approach (Theory/Methodology): A generalised Value Adding Management process model is developed based on a common cause-effect model identified in existing conceptual frameworks combined with the basic process model of input → throughput → output. The proposed model consists of interventions as input, management of implementation as throughput and added value as output/outcome.
Results and practical implications: The Value Adding Management model provides a simple framework which aims at supporting the practical management and measurement of added value. A typology with six types of FM/CREM interventions is developed from earlier research. The concept of Value Adding Management is investigated and the 12 most important added value parameters are identified.
Research limitations: The process model still has to be tested on its empirical validity and practical applicability. This is being done and will be presented in a forthcoming book on how to manage and measure value adding by FM and CREM.
Originality/value: The Value Adding Management process model condensates research in an original and simple model with the potential to make value adding management more applicable in practice.","Facilities Management; Corporate Real Estate Management; Interventions; Value Adding Management; Added Value","en","conference paper","Tampere University of Technology","","","","","","","","","","Real Estate Management","","",""
"uuid:cfa17a7f-1c3e-415e-b400-37031b3494e9","http://resolver.tudelft.nl/uuid:cfa17a7f-1c3e-415e-b400-37031b3494e9","How to use Building Information Systems for a transition towards Sustainable Building Operation","Itard, L.C.M. (TU Delft OLD Housing Quality and Process Innovation; The Hague University of Applied Sciences); Joosstens, F (The Hague University of Applied Sciences)","Heiselberg, Per Kvols (editor)","2016","BIM Building Information Model or Modelling connects many different information
systems from various actors during the building construction process with each
other in one easily accessible and understandable model. BIM assures an effective
and efficient building construction process by reducing failing cost and reduces the
use of materials by so called clash-controls. More and more buildings and
infrastructural works are completed with help of BIM and materials, energy, time
and money are saved by doing so. But why not use BIM for the exploitation phase of
both new and existing buildings? By connecting the BIM model with the other
exploitation information systems as Facility Management Information Systems
(FMIS), and Building Information Systems it’s possible to create an easily
accessible and understandable building and operating information management
tool. Furthermore using BIM during the exploitation will increase the BIM market.
This paper makes clear that BIM an make a big difference in the quality of the
exploitation and operation of buildings, by helping creating a better and
comfortable indoor climate while reducing energy losses and costs. Facility
Managers should be the owners of this “exploitation and operation BIM” and have to know which information they must extract from the BIM and how to manage this information system. Another benefit will be time savings, and thereby money savings, because searching, reconstruction and updating building information again and again is not needed anymore. The paper also discuss some of the problems with the implementation and use of such a BIM.","Facility Management; Building Information Management Systems; Sustainable Management and Maintenance; Sustainable Operation of Building","en","conference paper","Aalborg University","","","","","","","","","","OLD Housing Quality and Process Innovation","","",""
"uuid:0a2324a2-675b-4fb5-8292-288969a35875","http://resolver.tudelft.nl/uuid:0a2324a2-675b-4fb5-8292-288969a35875","Towards Urban Facilities Energy Performance Evaluation Using Remote Sensing","Jazizadeh, F. (Virginia Tech); Taleghani, M. (TU Delft Climate Design and Sustainability; University of Southern California)","","2016","Urban facilities are major contributors to annual energy consumption and therefore, evaluating their energy efficiency and retrofit planning play a major role in achieving sustainability goals. For urban facilities, such as buildings, energy performance audits could be conducted by detailed evaluation at building level. However, at urban level, detailed evaluation is cost and time intensive. Therefore, in this study, we investigated the correlation between land surface temperature, obtained through satellite imagery, and energy consumption patterns at urban level to explore its feasibility for energy performance evaluations. New York City was used as the main case study for conducting the analysis. We have investigated the correlation between energy consumption intensity and temperature at city block level for selected points. The outcome demonstrates a strong correlation between energy consumption intensity and land surface temperature. The observed correlation could potentially be leveraged for developing an approach for energy performance auditing.","Energy management; Remote sensing; Thermal imagery; Urban facilities","en","journal article","","","","","","","","","","","Climate Design and Sustainability","","",""
"uuid:0eebc93e-92e5-4e65-8307-a5d5e23b5238","http://resolver.tudelft.nl/uuid:0eebc93e-92e5-4e65-8307-a5d5e23b5238","Improved Approximation Algorithm for k-level Uncapacitated Facility Location Problem (with Penalties)","Byrka, Jaroslaw (University of Wroclaw); Li, S. (TU Delft Discrete Mathematics and Optimization); Rybicki, Bartosz (University of Wroclaw)","","2014","We study the k-level uncapacitated facility location problem (k-level UFL) in which clients need to be connected with paths crossing open facilities of k types (levels). In this paper we first propose an approximation algorithm that for any constant k, in polynomial time, delivers solutions of cost at most αk times OPT, where αk is an increasing function of k, with limk→∞αk=3. Our algorithm rounds a fractional solution to an extended LP formulation of the problem. The rounding builds upon the technique of iteratively rounding fractional solutions on trees (Garg, Konjevod, and Ravi SODA’98) originally used for the group Steiner tree problem. We improve the approximation ratio for k-level UFL for all k ≥ 3, in particular we obtain the ratio equal 2.02, 2.14, and 2.24 for k = 3,4, and 5. Second, we give a simple interpretation of the randomization process (Li ICALP’2011) for 1-level UFL in terms of solving an auxiliary (factor revealing) LP. Armed with this simple view point, we exercise the randomization on our algorithm for the k-level UFL. We further improve the approximation ratio for all k ≥ 3, obtaining 1.97, 2.09, and 2.19 for k = 3,4, and 5. Third, we extend our algorithm to the k-level UFL with penalties (k-level UFLWP), in which the setting is the same as k-level UFL except that the planner has the option to pay a penalty instead of connecting chosen clients.","Approximation algorithms; Facility location","en","journal article","","","","","","","","","","","Discrete Mathematics and Optimization","","",""
"uuid:8e210b85-5047-4d4e-a261-d8902b13bcc7","http://resolver.tudelft.nl/uuid:8e210b85-5047-4d4e-a261-d8902b13bcc7","Managing the workplace in a globalized world: The role of national culture in workplace management","Plijter, EB; van der Voordt, Theo (TU Delft Real Estate Management); Rocco, Roberto (TU Delft Spatial Planning and Strategy)","","2014","Purpose: to provide a better insight into the role of national cultures on the management and design of workplaces of multinationals in different countries.
Design/methodology/approach: This explorative study is based on an extensive literature review of dimensions of national culture in connection to corporate real estate management, interviews with ten representatives of multinationals on corporate real estate strategies and workplace characteristics, and a multiple case study of two multinational firms with site visits and observations at offices in the Netherlands, Germany and Great Britain.
Findings: Whereas all interviewed companies had their real estate portfolio to some extent aligned to the local national culture, none had a strict central policy about this issue. Differences in workplace characteristics were mainly caused by the involvement of local people in workplace design. Using Hofstede’s cultural dimensions the case studies showed relationships between masculinity of a culture and the expression of status and between uncertainty avoidance and openness to innovation; however, no relationships were found related to differences in power distance and short/long term orientation.
Research limitations: The case studies were conducted in three EU countries. Due to practical reasons, most interviewees were Dutch. Additional empirical research including more different national cultures is needed to advance more unequivocal conclusions and to develop a clear set of guidelines for decision-making.
Practical implications: The findings stress the importance of finding a balance between aligning facilities to business purposes and meeting the needs of different (groups of) employees in multinational environments.
Originality/value: Although much has been written about national culture, not much research is available yet in connection to facilities management and corporate real estate management.","national culture; corporate culture; facilities; corporate real estate management; workplace characteristics; decision-making","en","journal article","","","","","","Accepted Author Manuscript","","","","","Real Estate Management","","",""
"uuid:6a804e98-7e3a-4826-8be2-b80b9d140054","http://resolver.tudelft.nl/uuid:6a804e98-7e3a-4826-8be2-b80b9d140054","Reflecting on future research concerning the added value of FM","Jensen, PA; van der Voordt, Theo (TU Delft Real Estate Management); Coenen, C; Sarasoja, AL","","2014","Purpose: To summarize recent research findings and reflections on The Added Value of Facilities Management and to outline perspectives for future research and development of the added value of FM.
Methodology - The article is based on reflections on contributions to the recently published book “The Added Value of Facilities Management” and related future studies as well as further exploration of five main themes.
Findings - Added value is expected to be central in the future development of FM, which is confirmed by recent foresight studies. There is a need for a better understanding of alignment between FM and core business, performance measurement methods and how models such as the FM Value Map can be of value to the involved stakeholders. CSR, Sustainability and Branding have great potential to add value and to elevate FM to become a strategic partner with corporate top management. Management of stakeholders’ perception of value and relationships are essential aspects as well and need further attention.
Research limitations - The article is based on the conclusions of several studies that aimed to explore items for further research, on the ideas of all co-authors of “The Added Value of Facilities Management” anthology and on further exploration of five main themes, and not on an extensive review of recommendations for further research to be found in a huge number of research reports.
Practical implications - The findings and ideas for further research on the added value of FM deliver input to further professionalization of FM.
Originality/value - This paper provides important input to the future research agenda on the added value of FM and sheds new light on five particular research topics.","Facilities management; Value added; Stakeholders; Strategic management; Sustainable development; Future research","en","journal article","","","","","","Accepted Author Manuscript","","","","","Real Estate Management","","",""
"uuid:aefb79bc-e6ec-4982-aea0-6cfca84a2d28","http://resolver.tudelft.nl/uuid:aefb79bc-e6ec-4982-aea0-6cfca84a2d28","Adding value by FM: exploration of management practice in the Netherlands and Denmark","van der Voordt, Theo (TU Delft Real Estate Management); Jensen, PA","","2014","The last decade shows a growing attention into the concept of added value of Facilities Management and Corporate Real Estate Management and how to attain and measure added value. A variety of different types of added value came to the fore such as user value, customer value, financial value, environmental value and relationship value. Furthermore a huge variety of different definitions can be found in publications from different authors, partly depending on their disciplinary background and partly because some authors do not build on former research. In discussions with researchers and practitioners, the concept of added value is definitely recognized. However, people have many different topics in mind. In a workshop at EFMC 2013 all attendants used different terms and mentioned only a few concrete measures how to add value, mostly in rather abstract terms. Further research is needed to harmonize the concept of added value i.e. definitions, dimensions and types, and to be able to operationalize this concept into practical guidelines for implementation and measurement by Key Performance Indicators. This paper relates theoretical reflections on the added value of FM to the findings of ten interviews with practitioners from the Netherlands and Denmark. It aims to explore how practitioners cope with terms and definitions, which concrete FM measures are applied to add value, what value, and if/how managers measure whether the aimed added values have been attained. The paper ends with some reflections and suggestions for follow-up research, both from a theoretical and practical perspective.","Facilities Management; Corporate Real Estate Management; Added Value; Performance; Value Adding Management","en","conference paper","","","","","","","","","","","Real Estate Management","","",""
"uuid:720a8f91-b8d0-492e-a1e4-664d485dd2ab","http://resolver.tudelft.nl/uuid:720a8f91-b8d0-492e-a1e4-664d485dd2ab","The LIGHTVAN","Hordijk, G.J. (TU Delft Building Physics); Bilow, M. (TU Delft Building Product Innovation); Aarts, Marielle; Rosemann, Alexander","","2014","The ‘LIGHTVAN’ research aims to optimize the lighting design for healthy schools and modern senior housing and care homes with regards to the use of light as a cheap and important source of energy A multi-functional mobile light laboratory was built into a delivery van, the LIGHTVAN. This LIGHTVAN has two clear aims: With this mobile light laboratory we can travel to the living environment of specific groups of people, such as children and seniors, so that they may be subject to specific age-dependent light studies. In this moving laboratory measurement equipment is present for this purpose and a table and chairs for the various subjects. Testing of luminance and color contrasts are possible, as well as the testing of “light and shadow” patterns. Even small eye tests can be performed. In addition, the rear side of the delivery van is adapted so that with opened doors all kinds of innovative facades can be tested. The LIGHTVAN travel to different locations to be accommodated and be positioned towards various sun directions. Several passe-partouts are available for building physics measurements of different facades sizes in order to allow test-subjects to indicate their preferences for specific facades in terms of comfort.","light design; light van; schools; senior dwellings; elderly care facilities; daylight; mobile laboratory; light laboratory; mobile light laboratory","en","journal article","","","","","","","","","","","Building Physics","","",""
"uuid:2c2a2eaa-9d73-4ffa-9e75-78e487ae6455","http://resolver.tudelft.nl/uuid:2c2a2eaa-9d73-4ffa-9e75-78e487ae6455","How Can Facilities Management Add Value To Organisations As Well As To Society?","Jensen, P.A.; Sarasoja, A.L.; van der Voordt, D.J.M.; Coenen, C.","","2013","The purpose of this paper is to present lessons learnt from a 3 year collaborative research project on the added value of Facilities Management (FM) involving institutions in five European countries. The starting point was the so-called FM Value Map developed earlier by the leader of the research group. The project applied three basic theoretical perspectives: FM, Corporate Real Estate Management (CREM) and Business to Business (B2B) marketing and started with a major literature review on added value based on each of these perspectives. The collaboration included a series of workshops and preparation of research papers covering theoretical, methodological and empirical aspects. The results were published as an anthology in May 2012. The three basic perspectives of FM, CREM and B2B marketing provide both overlapping and complementary focus areas in relation to adding value. Four conceptual models are presented and compared. They include parameters and strategies for how FM can add value with many similarities and a trend towards convergence. Stakeholder relationships and relationship management are seen as crucial in adding value, which for instance is expressed in the concepts FM Value Network and Value Adding Management. Besides adding value for the core business of organisations it is becoming increasingly important for FM to add value for society, for instance in terms of sustainability and corporate social responsibility. The advancement in knowledge and understanding presented in the paper offers a new state of the art, which can give inspiration and guidance for cutting edge FM organisations and professionals as well as for advanced teaching and future research.","Facilities Management; Corporate Real Estate Management; B2B Marketing; Added Value; State of the Art","en","conference paper","International Council for Building (CIB)","","","","","","","","Architecture","Real Estate and Housing","","","",""
"uuid:a3881fe2-5f34-4a5d-bc24-977e2f5ab1ce","http://resolver.tudelft.nl/uuid:a3881fe2-5f34-4a5d-bc24-977e2f5ab1ce","Design and analysis procedure for centrifuge devices with a Product Lifecycle Management (PLM) system","Morales, W.F.; Laue, J.; Zweidler, A.; Springman, S.M.","","2012","Structural analysis of new devices to be used in centrifuge facilities can be a challenging task. Initial calculations, based on simple basic static principles, are usually used. However, as devices placed in a geotechnical centrifuge are often complex structures, advanced analysis methods to assess their performance under enhanced acceleration fields are desirable. This paper presents the analysis of the performance of a new strongbox designed for a centrifuge facility at ETH Zurich by using a commercial Product Lifecycle Management (PLM) software.","PLM; finite element; enhanced acceleration; centrifuge facility; device design","en","conference paper","","","","","","","","","","","","","",""
"uuid:6d3bd38d-cd35-446d-95a7-c172577f156f","http://resolver.tudelft.nl/uuid:6d3bd38d-cd35-446d-95a7-c172577f156f","Operationalising Public Space Activity and Structuring Redevelopment Trough Public Facilities Planning in a Configurational Urban Structure","Read, S.A.; Wang, J.","","2012","Forms in planning often do not match the forms of cities. This is important because the experience and functionings of cities are given by certain forms and not by others. In particular we are concerned here with the fact planning and design thinking often assumes a nested hierarchy of communities and spaces while the real forms of cities suggest a different diagram of how hierarchies are formed and sustained as active spaces. We ask the question what kind of forms human action and urban activity entail, and begin to answer this with a view taken from hermeneutical phenomenology that finds these mediated by technologies in such a way that what acts is the human?technology network rather than the human in a polar relation with a resistant ‘environment’. ‘Environments’ are, it is suggested, ‘technological spaces’ constructed in networks and to normative forms and scales like ‘neighbourhood’ or ‘city’. We review previous work on the role of the supergrid in constructing these forms in a process of historical development in Amsterdam. In Amsterdam infrastructure has been systematised to create networks of places in neighbourhoods, in cities (neighbourhoods and other city?scale things), and in metropolitan regions (cities and other metropolitan scaled things). This is a level of ‘planning’ that concerns normative assumptions and exists outside of the explicit concerns of planning while affecting all planning decisions at the level of sense. We conclude there is a different ‘diagram’ of urban space, consisting of three grids superimposed on each other, each of which produces a different normative element: neighbourhood, city and metropolitan region; each of which exists in part?whole relations with the others. We use this model to investigate the form of the city of Jinan in China, asking about its relevance and how we can use it to promote planning for an active public space in new towns in Jinan. Chinese planning assumes a particular form of the city and we contrast this with the actuality of activity patterns in Jinan and their historical formation. We ask how planning form needs to be translated here into urban form in order to promote public space activity in the new towns proposed and make some guidelines and suggestions for planners on how we can begin to do this. The question of why a model derived in European conditions may help us in China may be answered by the fact that both were subject of urbanisation under conditions of industrialisation and both are undergoing transformation under conditions of metropolitanisation. There is an open question still concerning Chinese ‘neighbourhoods’ and their definition.","public space activity; facilities planning; infrastructure planning; urban place; space syntax; Jinan; China","en","conference paper","PUC","","","","","","","","Architecture","Urbanism","","","",""
"uuid:d3aaa7ef-b532-4218-84cf-b365c4b7acce","http://resolver.tudelft.nl/uuid:d3aaa7ef-b532-4218-84cf-b365c4b7acce","In search for the added value of FM: What we know and what we need to learn","Jensen, PA; van der Voordt, Theo (TU Delft Real Estate Management); Coenen, C; von Felten, D; Lindholm, AL; Balslev-Nielsen, S; Riratanaphong, C. (TU Delft Real Estate Management); Pfenniger, M","","2012","Purpose
– This article aims to present and compare research perspectives and theoretical reflections from a variety of academic fields on the concept of added value of facilities management.
Design/methodology/approach
– The starting point is the so‐called FM Value Map, which was presented in a recent article in Facilities by Per Anker Jensen in 2010. The article is a first result of the work in the EuroFM research collaboration group and is based on literature reviews of the most influential journals within the academic fields of facilities management (FM), corporate real estate management and business‐to‐business marketing.
Findings
– Good relationship management and building on trust is shown to be equally important as delivering the agreed services.
Originality/value
– Usually the concept of added value is discussed from a monodisciplinary point‐of‐view. The different backgrounds of the authors add value to an increased understanding of the added value of FM by comparing and testing different ways of conceptualising this issue. This is of great importance to FM research and evidence‐based FM as a sound basis for the long‐term recognition of FM.","Facilities management; Corporate real estate management; Added value; Strategic mapping; Services marketing; Relationship value; Facilities; Real estate; Value added","en","journal article","","","","","","Accepted Author Manuscript","","","","","Real Estate Management","","",""
"uuid:239568db-562f-4c44-8fa9-c60c6310e3c2","http://resolver.tudelft.nl/uuid:239568db-562f-4c44-8fa9-c60c6310e3c2","Testing facility for hydrogen storage materials designed to simulate application based conditions","Westerwaal, R.J.; Nyqvist, R.G.; Haije, W.G.","","2011","For the daily use of hydrogen storage materials, not only their intrinsic storage properties are important, but also equally important is the performance under practical conditions. Besides the techniques already available for the fundamental characterization of storage materials, there is a growing need to test storage materials under conditions resembling day-to-day use. For that we developed and tested a downscaled hydrogen storage reactor with which it is possible to monitor the hydrogenation behavior under nonideal conditions. Here we present a characterization of the developed reactor setup which enables a fast screening of storage materials. For characterization and calibration purposes, we use the rather well-documented LaNi5–Al alloy as reference. The found experimental results agree well with the properties of LaNi5–Al as reported in literature. Our results show that this reactor setup enables an efficient screening of new developed storage alloys under realistic conditions and is therefore complementary to the already existing characterization setups.","aluminium alloys; calibration; chemical reactors; hydrogen storage; hydrogenation; lanthanum alloys; nickel alloys; process monitoring; test facilities","en","journal article","American Institute of Physics","","","","","","","","Applied Sciences","ChemE/Chemical Engineering","","","",""
"uuid:de05488c-ab20-4a22-9d71-7d88473c132a","http://resolver.tudelft.nl/uuid:de05488c-ab20-4a22-9d71-7d88473c132a","Pleasantness in bodily experience: A phenomenological inquiry","Rozendaal, M.C.; Schifferstein, H.N.J.","","2010","This study investigated the varieties of pleasantness in bodily experience in order to advance the aesthetics of interaction paradigm. Interviews were held with twelve people varying in age and occupation. They were asked to describe pleasant experiences for Sight, Audition, Smell, Taste, Touch, Action and Thought. A phenomenological reduction performed on the interview transcripts resulted in seven pleasantness themes: sociality, aesthetics, comfort, agency, associations, vitality and progression. These pleasantness themes involved multiple bodily faculties with a prominence of two or three specific ones, which allowed a preliminary mapping of the pleasantness themes in relation to the body. The results may advance the aesthetics of interaction paradigm by explicating the varieties in pleasant experience and how the body is involved in shaping them.","pleasantness; bodily facilities; phenomenology; asthetics; sensorium; interaction","en","journal article","Chinese Institute of Design","","","","","","","","Industrial Design Engineering","","","","",""
"uuid:4ea9be00-97d3-425c-9050-cb1ea17b6ff7","http://resolver.tudelft.nl/uuid:4ea9be00-97d3-425c-9050-cb1ea17b6ff7","TIGER capacity building facility: Growing from projects to professional community","Vekerdy, Z.; Su, B.; Menenti, M.; Swinnen, E.; Painho, M.; Fernandez, D.","","2010","Water security has become one of the most important challenges in the sustainable development of Africa, but only limited reliable information is available on the use and availability of water to support adequate planning and management of water resources. Data acquired from space can contribute to meet the urgent information need. But to satisfy the demand, a good synchronization based on a shared knowledge is required between water managers, who can indicate their specific information needs; developers of the satellite-based data, who can indicate what information can be provided; and the knowledge institutes, which transfer their knowledge on collection and dissemination of the information to users. In other words, a continent-wide capacity is needed to utilize Earth Observation (EO) technology. In the context of the Committee of Earth Observation Satellites (CEOS), ESA launched the TIGER Initiative in 2002 as a concrete action to match the resolutions of the World Summit on Sustainable Development held in Johannesburg. The initiative aims at assisting African countries to overcome problems faced in the collection, analysis and dissemination of water related geoinformation by exploiting the advantages of EO technology. The first phase was completed in 2008, which contained a capacity building facility (TCBF) that supported about 100 individuals from more than 20 institutions all around the continent with training at various levels and methods: 1. Basic education, provided via distance learning. 2. Tailored short courses, selected according to the research interest and technical background of the participants. 3. Research topic oriented supervision, provided by specialists of the research fields of the participants. 4. Advanced short courses focusing on selected earth observation techniques. ITC implemented the TCBF. Today we are in the second phase of the TIGER Initiative (TIGER II), which aims to build upon the success of the first one. TCBF II is implemented now by a consortium of four partners (ITC, TU Delft, VITO and ISEGI-UNL), with the aim of supporting 20 research projects and establishing 3 Regional Offices in the time span of 2009-2012. They support African efforts to develop sustainable observation systems by using EO technology to learn more about the water cycle and to improve water-monitoring resources that will help to establish sound scientific bases for developing effective adaptation or mitigation measures against the impacts of climate change. The TCBF focuses on the research component of TIGER II that supports African scientists furthering their scientific skills and the technical capacity to address the issue of the water resources in Africa. The second phase is more complex than its forerunner, although the applied capacity building tools are similar to the first phase. For example, the first training course on earth observation basics was held in Cairo in April 2010. Twenty three participants were supported by the TIGER programme, and another eleven joined using their own resources. There is a larger variety of participating institutions, from universities to regional water authorities. It is a very important aspect that several projects address trans-boundary issues with multinational staff. The participating institutions and regional offices get free access to ESA satellite data. A large number of training activities are being implemented with the aim of broadening the EO literacy among the information users, i.e. the water practitioners, and providing higher academic qualifications to the key players in EO research and education, to enable them to teach new generations of EO specialists and users in Africa. Besides capacity building, these activities contribute to building a community that unites the users of earth observation technology for water applications around the continent.","TIGER capacity building facility; water resources management; earth observation","en","conference paper","International Society of Photogrammetry and Remote Sensing (ISPRS)","","","","","","","","Aerospace Engineering","Remote Sensing","","","",""
"uuid:6fced52a-3e9e-4684-bd31-0a3c27ad3b45","http://resolver.tudelft.nl/uuid:6fced52a-3e9e-4684-bd31-0a3c27ad3b45","An Optimal Bifactor Approximation Algorithm for the Metric Uncapacitated Facility Location Problem","Byrka, J.; Aardal, K.I.","","2010","We obtain a 1.5-approximation algorithm for the metric uncapacitated facility location (UFL) problem, which improves on the previously best known 1.52-approximation algorithm by Mahdian, Ye, and Zhang. Note that the approximability lower bound by Guha and Khuller is 1.463 . . . . An algorithm is a (?f ,?c)-approximation algorithm if the solution it produces has total cost at most ?f ·F?+?c ·C?, where F? and C? are the facility and the connection cost of an optimal solution. Our new algorithm, which is a modification of the (1 + 2/e)-approximation algorithm of Chudak and Shmoys, is a (1.6774, 1.3738)-approximation algorithm for the UFL problem and is the first one that touches the approximability limit curve (?f ,1+2e??f ) established by Jain, Mahdian, and Saberi. As a consequence, we obtain the first optimal approximation algorithm for instances dominated by connection costs. When combined with a (1.11, 1.7764)-approximation algorithm proposed by Jain et al., and later analyzed by Mahdian et al., we obtain the overall approximation guarantee of 1.5 for the metric UFL problem. We also describe how to use our algorithm to improve the approximation ratio for the 3-level version of UFL.","facility location; approximation algorithms; LP-rounding","en","journal article","Society for Industrial and Applied Mathematics","","","","","","","","Electrical Engineering, Mathematics and Computer Science","Delft Institute of Applied Mathematics","","","",""
"uuid:2283491d-d7b1-495b-b7d0-ab9b3e58133a","http://resolver.tudelft.nl/uuid:2283491d-d7b1-495b-b7d0-ab9b3e58133a","The Added Value of FM: Different Research Perspectives","Jensen, P; van der Voordt, Theo (TU Delft Real Estate Management); Coenen, C; von Felten, D; Lindholm, A","","2010","Purpose: This paper aims to present and compare research perspectives and theoretical reflections from a variety of academic fields on the concept of Added Value of Facilities Management (FM).
Theory: The starting point is the so-called FM Value Map, which was presented in a paper by Jensen (2009) at the research symposium at EFMC 2009 in Amsterdam.
Methodology: Literature reviews of the most influential journals within the academic fields of FM, Corporate Real Estate Management and Business to Business Marketing; reflections on EFMC-presentations; discussions between participants of an EuroFM research collaboration group working on a further exploration and testing of the FM Value Map.
Findings: The research shows a number of different definitions and focus points of Added Value of FM, dependent on the academic field and the area of application. The different research perspectives explored a holistic view on the added value of FM by the integration of an external market based view (with a focus on the aimed output) and the internal resource based view (with a focus on the input from FM and RE). Good relationship management and building on trust shows to be equally important as delivering the agreed services. In order to measure the multidimensional components of adding value both qualitative and quantitative approaches are needed.
Originality/value: Usually the concept of Added Value is discussed from a mono-disciplinary point of view. Based on this international collaboration a more complete picture will arise. The different backgrounds of the authors add value to an increased understanding of the added value of FM by comparing and testing different ways of conceptualising this concept. This is of great importance to FM-research and evidence-based FM as a sound basis for the long term recognition of FM.","Facilities Management; Corporate Real Estate Management; Added Value; Strategic Mapping; Service Marketing; Relationship Value","en","conference paper","EuroFM","","","","","Accepted Author Manuscript","","","","","Real Estate Management","","",""
"uuid:22b90d92-9e63-4fa0-8d6e-2106912e23f9","http://resolver.tudelft.nl/uuid:22b90d92-9e63-4fa0-8d6e-2106912e23f9","Preprocessing of gravity gradients at the GOCE high-level processing facility","Bouman, J.; Rispens, S.; Gruber, T.; Koop, R.; Schrama, E.; Visser, P.; Tscherning, C.C.; Veicherts, M.","","2008","One of the products derived from the gravity field and steady-state ocean circulation explorer (GOCE) observations are the gravity gradients. These gravity gradients are provided in the gradiometer reference frame (GRF) and are calibrated in-flight using satellite shaking and star sensor data. To use these gravity gradients for application in Earth scienes and gravity field analysis, additional preprocessing needs to be done, including corrections for temporal gravity field signals to isolate the static gravity field part, screening for outliers, calibration by comparison with existing external gravity field information and error assessment. The temporal gravity gradient corrections consist of tidal and nontidal corrections. These are all generally below the gravity gradient error level, which is predicted to show a 1/f behaviour for low frequencies. In the outlier detection, the 1/f error is compensated for by subtracting a local median from the data, while the data error is assessed using the median absolute deviation. The local median acts as a high-pass filter and it is robust as is the median absolute deviation. Three different methods have been implemented for the calibration of the gravity gradients. All three methods use a high-pass filter to compensate for the 1/f gravity gradient error. The baseline method uses state-of-the-art global gravity field models and the most accurate results are obtained if star sensor misalignments are estimated along with the calibration parameters. A second calibration method uses GOCE GPS data to estimate a low-degree gravity field model as well as gravity gradient scale factors. Both methods allow to estimate gravity gradient scale factors down to the 10?3 level. The third calibration method uses high accurate terrestrial gravity data in selected regions to validate the gravity gradient scale factors, focussing on the measurement band. Gravity gradient scale factors may be estimated down to the 10?2 level with this method.","GOCE; High-level processing facility; Gravity gradients; Preprocessing; Calibration","en","journal article","Springer","","","","","","","","Aerospace Engineering","Delft Institute of Earth Observation and Space Systems, DEOS","","","",""
"uuid:734d9e88-c1ff-4924-aa15-778636f2fb51","http://resolver.tudelft.nl/uuid:734d9e88-c1ff-4924-aa15-778636f2fb51","Blowin' in the wind","Wassink, J.","Van Kuik, G.A.M. (contributor); Timmer, W.A. (contributor); Veldhuis, L.L.M. (contributor)","2008","The new Open Jet Facility wind tunnel, which is scheduled to blow its first wind on 24 October, has been a project in the mind of designer Nando Timmer for over twenty years. "I have had moments when I thought it was never going to happen."","Open Jet Facility","en","journal article","Delft University of Technology","","","","","","","","","","","","",""
"uuid:d32c5692-d4b1-4366-af51-e59c320f48b6","http://resolver.tudelft.nl/uuid:d32c5692-d4b1-4366-af51-e59c320f48b6","Do facilities matter?: The influence of facility satisfaction on perceived labour productivity of office employee","Batenburg, RS; van der Voordt, Theo (TU Delft Real Estate Management)","","2008","Purpose: Companies spend a lot of money to provide facilities such as a nice, effective and efficient building, well designed ergonomic furniture, sophisticated IT, cleaning services, catering, and safety services. Both from a theoretical perspective as well as from a managerial point of view, it is important to know if and how strongly facilities do affect employee satisfaction and labour productivity. The paper discusses the results of research on this issue.
Methods: A brief review of literature and statistical analyses of a database of the Delft Center for People and Buildings, with 2197 respondents from 17 different office environments. The database includes data from Diagnostic Post-Occupancy Evaluations on user satisfaction with regard to the organization, working processes, the office concept and a number of facilities.
Findings: Most annual and biannual surveys among Dutch office employees use questionnaires with hardly any questions about the physical environment. Statistical analyses of the Delft database showed a significant but weak correlation between user satisfaction on facilities and self estimated percentage of time that one is being productive. Much stronger correlations came up when satisfaction about facilities is linked to users’ perceptions of the supporting impact of the working environment on ones own productivity.
Implications: The results showed statistical support for the added value of facility provisions. But other variables have their impact, too. A more intensive co-operation between scholars, facility managers and Human Resource managers may help to improve our understanding of the complex relationships between the working environment and perceived labour productivity.","facilities; perception; satisfaction; productivity; POE","en","conference paper","IBC EUROFORUM GmbH","","","","","","","","","","Real Estate Management","","",""
"uuid:166af27f-05c0-4c39-a837-1b8a9f2e5920","http://resolver.tudelft.nl/uuid:166af27f-05c0-4c39-a837-1b8a9f2e5920","A compact fast-neutron producing target for high resolution cross section measurements","Flaska, M.","Van Dam, H. (promotor); Van der Hagen, T.H.J.J. (promotor); Kleijn, C.R. (promotor)","2006","A proper knowledge of neutron cross sections is very important for the operation safety of various nuclear facilities. Reducing uncertainties in the neutron cross sections can lead to an enhanced safety of present and future nuclear power systems. Accurate neutron cross sections also play a relevant role in many other disciplines such as astrophysics, medicine, and security. Therefore it is essential to have at disposal tools to measure the neutron cross sections at required resolution. The measurement accuracy required to extract properly resonance parameters of the cross sections can only be obtained at time-of-flight facilities specially designed to have a high resolution in energy. Among the other neutron TOF facilities available in the world, the bremsstrahlung-based Geel Electron LINear Accelerator (GELINA) facility of the Joint Research Centre of the European Commission in Belgium is the one with the best energy resolution. The main goal of this thesis was to investigate the possibilities to improve even further the capabilities of this neutron data measurement facility. The thesis describes a design study with the purpose to further enhance the quality of the GELINA facility by proposing a new neutron producing target. It is demonstrated that there is a potential for an improved target to allow GELINA users to measure neutron cross sections with even higher accuracy. Therefore an effort was made to optimize the size, shape, and material composition of such a target design in view of the optimal neutron source characteristics, while providing an adequate solution for target cooling. The final design consists of seven 3 x 3 cm2 U-Mo plates with well-defined thicknesses in the direction of the beam. A plate-by-plate optimization has been carried out in order to maximize the neutronics properties of the target, while keeping the maximum plate temperatures reasonably low. A tantalum cladding coats each U-Mo plate to provide the required containment of radioactive material, and to avoid the direct contact of the U-Mo alloy with the Hg coolant. Seven Hg channels located in between the plates cool the target.","time-of-flight facility; neutron producing target; high resolution cross section measurements; resonance shape analysis","en","doctoral thesis","IOS","","","","","","","","Applied Sciences","","","","",""
"uuid:2f3f5da0-2857-4ab3-9c2c-fb30014e324b","http://resolver.tudelft.nl/uuid:2f3f5da0-2857-4ab3-9c2c-fb30014e324b","A Tool for the Design of Facilities for the Sustainable Production of Knowledge","Wu, J.","Tzonis, A. (promotor)","2005","The aim of the study is to develop a ‘design tool’, that is a method to enhance the design and planning of facilities for the sustainable production of new knowledge. More precisely, the objective is to identify a method to support the conception of building complexes related to the long-term production of new knowledge. The tool is focused on the necessary spatial conditions pertaining to this end, especially the topological networks. Today, with profound developments in what has been called the Knowledge Economy and consequent changes in our society, new challenging design problems have to be faced. It appears that one of the most crucial of these is to design Sustainable Innovation Facilities which can meet the new needs and exploit the potential of the New Environment of our time.To solve this new problem, a new set of design methods is needed, in the form of a design tool. The concept of ‘Sustainable Development’ in the economy and the environment is applied to the production of new knowledge. The basic feature of ‘Sustainable Development’ is generalized as: the process of increasing or at least maintaining output in a changing environment by means of adaptation. One condition contributing significantly to such adaptation is knowledge ‘diversity’ of people interacting within what have been called ‘clusters’. There are two possibilities of achieving such clusters of high diversity: 1) through ‘virtual’ media and 2) through face-to-face interaction in ‘real’ places. Both are seen to be of value. Hence, facilities for sustainably producing new knowledge have to combine the advantages of both virtual and physical means. In certain situations, over-reliance on virtual media may to lead to ‘Cyberbalkanization’. This study thus concentrates on enhancing interaction in the ‘real places’ that exist in built environments. To measure physical diversity in clusters, three steps are suggested: 1. The identification of clustering locations in innovation facilities; 2. The identification of users interacting in such clustering locations; 3. The measurement of the diversity of the agents interacting in such clusters. To provide a better understanding of the concepts of diversity and cluster formation related to the physical spatial organization of a facility, the campus of TU Delft was chosen as a case study. The study shows that the possibility for physical interaction between knowledge agents in clusters from diverse academic backgrounds is very low, which forces us to think about conditions that may increase them. As a result, the study is concerned with the necessary conditions to allow the formation of clusters of high diversity in knowledge production facilities. These conditions are represented in terms of topological networks consisting of nodes, which represent places for potential encounters, and links between nodes, which represent accessibility between such places. We use the term ‘Archigraph’ for these networks. To construct the design tool, three examples of applications are considered to explore how the tool can be constructed. The three examples illustrate how to compare diversity of interacting groups in clusters for schemes in three different situations as follows: different network structure but similar allocation; different allocation but the same network structure; and different allocation with different network structure. To test the tool, two design options from a real design competition are used in another case study. We compare the ‘diversity index’ of the schemes using the design tool. Possible modifications to the tool are suggested as a result of this case study. Starting from methodologies developed by the Design Knowledge Systems Research Center (DKS) for the development of design tools, the research is also innovative in the following respects: 1. The transfer of concepts and techniques from the domains of economics, regional science, environmental sustainability, and sociology to the domain of spatial design, on the scale of building complexes; 2. The development of a model representing spatial attributes constraining face-to-face group interaction in the built environment; 3. The development of a design tool which can help in evaluating and optimizing the potential diversity of groups communicating within building complexes. The design tool proposed here is not intended for use as a deterministic design machine but as an aid to providing a better understanding in comparing alternative building plans when the topological network is taken as a necessary condition for enhancing physical interaction among diverse agents.","sustainable innovation facilities; necessary design conditions; diversity in clusters; archigraph; design methodology; design tool development","en","doctoral thesis","","","","","","","","","Architecture","Architecture","","","",""
"uuid:b627c79b-0044-4c20-8653-cd76050fce93","http://resolver.tudelft.nl/uuid:b627c79b-0044-4c20-8653-cd76050fce93","Changing seats: A behavioural analysis of P&R use","Bos, D.M.","Van der Heijden, R.E.C.M. (promotor); Timmermans, H.J.P. (promotor)","2004","","Accessibility urban areas; P&R facility; hierarchical information integration","en","doctoral thesis","TRAIL Reseach School","","","","","","","","Technology, Policy and Management","","","","",""
"uuid:e65fb66c-1e55-4e63-8c49-5199d40f60e1","http://resolver.tudelft.nl/uuid:e65fb66c-1e55-4e63-8c49-5199d40f60e1","Modelling passenger flows in public transport facilities","Daamen, W.","Bovy, P.H.L. (promotor)","2004","This thesis describes the developement of a new type of simulation tool for the assessment of designs of public transport facilities (stations, airports) and other public spaces with intensive pedestrian flows. Since the available space for such facilities is increasingly under pressure, the space efficiency and walking comfort is becoming more and more important. The developed simulation tool provides designers and decision-makers with all kinds of quantitative information about the expected quality of pedestrian (traffic) flows such as travel times, waiting times, queue building, preferred routes, visits to shops and counters, etc. This information is very useful in comparing multiple designs as well as to optimise a specific design. The simulation model also is meant to improve schedules of public transport services at interchange nodes by minimising passenger transfer times. To that end, special attention is paid to the modelling of boarding and alighting processes. New insights about walking have been gained by performing unique large-scale laboratory experiments in which large groups of subjects were assigned various walking tasks, such as high volume crossing flows and walking through bottlenecks until flow breaks down. Specific walking and route choice models are developed using observations of passengers on platforms (such as in Delft) and route choice through the station (such as in Delft and Breda). The tool has proven its value in the analysis of new designs of the future Rotterdam Central Station and performance tests of the new Breskens-Vlissingen ferry terminals.","pedestrian traffic; pedestrian flows; walking experiments; pedestrian simulation; station design; pedestrian route choice; public transport facilities; passenger","en","doctoral thesis","Delft University Press","","","","","","","","Trail","","","","",""
"uuid:42de6c5d-f420-4733-ae1b-813dbafb24e2","http://resolver.tudelft.nl/uuid:42de6c5d-f420-4733-ae1b-813dbafb24e2","New strategies for housing quality improvement by Dutch landlords","Straub, A.; Vijverberg, G.A.M.","","2004","","Accessibility, Facilities, Housing quality; Improvements; Plan features; Social Landlords; Strategies","en","journal article","Open House International Association","","","","","","","","OTB","","","","",""
"uuid:f6336c79-7da2-4c53-a01f-12b976d943ab","http://resolver.tudelft.nl/uuid:f6336c79-7da2-4c53-a01f-12b976d943ab","Costs and benefits of flexible workspaces: work in progress in The Netherlands","van der Voordt, Theo (TU Delft Real Estate Management)","","2004","The last decade has witnessed the introduction of non‐territorial offices with desk sharing and desk rotation linked to different job functions and working processes. This paper discusses the motives behind the application of these new concepts, potential costs and benefits and data on accommodation costs. A framework of potential costs and benefits is presented and illustrated by data from cost analyses and post‐occupancy evaluations of new offices. The author advocates the creation of an integral framework of (potential) costs and benefits, structured according to the principles of the balanced score card. This may help decision makers to set priorities in objectives and to anticipate on effects of interventions in office accommodation. Empirical data on costs and benefits of innovative workplace design are scarce. The framework according to the balanced score card should be explored further by interviewing experts from different organisations. The integral framework is new. The conceptual framework and data from empirical research may support decision making.","Innovation; Facilities; Costs; Benefits; The Netherlands","en","journal article","","","","","","Accepted Author Manuscript","","","","","Real Estate Management","","",""
"uuid:68981bc5-f0b2-49a7-aef5-25e862eaf1b1","http://resolver.tudelft.nl/uuid:68981bc5-f0b2-49a7-aef5-25e862eaf1b1","Survey of the need for experimental facilities including a Journal and dissertations evaluation","Roelvink, J.A.; Stolker, C.; Jacobs, C.","","2003","","facility; facilities","en","report","Delft Cluster","","","","","","","","","","","","",""
"uuid:8f3f3569-728a-4d8e-90ad-91a030c37ccf","http://resolver.tudelft.nl/uuid:8f3f3569-728a-4d8e-90ad-91a030c37ccf","Costs and benefits of flexible workspaces: work in progress in The Netherlands","van der Voordt, Theo (TU Delft Real Estate Management)","","2003","Due to the rapid progress in information and communication technology, work is becoming more and more independent of time and place. New concepts such as cocon offices (with special attention to both communication and concentration), teleworking, satellite offices, and hotel offices have been introduced world wide. During the last decade, we have witnessed the introduction of non-territorial offices in which desk sharing and desk rotation are linked to different job functions and working processes. This paper discusses the main motives behind the application of these new concepts, potential costs and benefits and data on accommodation costs. A plea is made for the need to create an integral framework of (potential) costs and benefits, structured according to the principles of the Balanced Score Card.","workplace innovation; facilities; costs; benefits","en","conference paper","","","","","","Accepted manuscript","","","","","Real Estate Management","","",""
"uuid:82076e29-efc3-4f7a-a2b4-69f5e93c9e8c","http://resolver.tudelft.nl/uuid:82076e29-efc3-4f7a-a2b4-69f5e93c9e8c","Pattern Matching for Decision Support","Boelen, A.J.","","1998","","Pattern matching; Object GIS; Urban object modeling; Facility planning","en","conference paper","","","","","","","","","Architecture","","","","",""
"uuid:438b9110-fb94-4015-b277-1c5fba96ac71","http://resolver.tudelft.nl/uuid:438b9110-fb94-4015-b277-1c5fba96ac71","Instrumental and organizational aspects of a neutron activation analysis laboratory","Bode, P.","De Goeij, J.J.M. (promotor); De Bruin, M. (promotor)","1996","","instrumental neutron activation analysis; irradiation facilities; detection limits; quality assurance quality management","en","doctoral thesis","","","","","","","","","Applied Sciences","","","","",""
"uuid:15c6885e-9272-4d0e-8282-8ee018c68c37","http://resolver.tudelft.nl/uuid:15c6885e-9272-4d0e-8282-8ee018c68c37","Huisvestingsmanagement in de onderwijssector: Het professioneel beheren van een functie-specifieke vastgoedvoorraad","Van Langen, H.G.P.","","1995","","facility management; huisvesting; onderwijs; beheer; onderhoud; onroerend goed; vastgoed","nl","book","Delftse Universitaire Pers","","","","","","","","Architecture","","","","",""
"uuid:494f8be3-eae0-4cde-b642-251232444263","http://resolver.tudelft.nl/uuid:494f8be3-eae0-4cde-b642-251232444263","Simulatiemodel huisvesting hoger onderwijs","Dekker, H.; Van Langen, H.G.P.","","1995","","facility management; huisvesting; financieel beheerinstrument; onderwijs","en","book","Delft University Press","","","","","","","","Architecture","","","","",""
"uuid:9e3aafa3-f805-48c8-a5ad-96dab6741f89","http://resolver.tudelft.nl/uuid:9e3aafa3-f805-48c8-a5ad-96dab6741f89","Programme and real-time operations simulation support tool prosim","ten Dam, A.A.; Schrap, F.; Brouwer, W.","","1994","The Programme and Real-time Operations SIMulation support tool PROSIM is a generic simulation tool that can be used for design, verification, test and training of a wide range of applications, such as aircraft and groimd vehicles. PROSIM originated as part of the National Simulation Facility NSF at the Dutch National Aerospace Laboratoiy NLR, a research and development facility for realistic man-in-the-loop (i.e. aircraft pilot) simulations, possibly with haidware-in-the-loop. This paper describes the design and use of PROSIM at NLR. In order to optimise working conditions and to satisfy specific requirements that must hold in each stage of design, development and testing, PROSIM consists of two distinct, but related tools: the Simulation Development Software (SDS), a generic software environment used to develop and test simulation models and hardware drivers, and prepare data files that are used during real-time simulation, and the Real-Time simulator Software (RTS), a generic software environment for execution and control of (non) real-time simulation runs. The RTS performs timing control of the simulation tasks (simulation models and hardware drivers), and user control of the complete simulation run. PROSIM contains a Graphical User Interface for ease of access and use. PROSIM is operational, and in use at NLR's Flight Division, since June 1994. Furthermore, PROSIM has been selected as the simulation tool in the Test and Verification Equipment project at NLR's Space Division, and in the ISMuS project at NLR's Informatics Division. The wide range of applications supports the claim that PROSIM is a generic simulation tool.","Hardware-in-the-loop,; flight simulation; real-time scheduling; simulation standards; simulation facility; human-in-the-loop","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:782b21aa-f713-41c9-a947-13ebcaf81aa1","http://resolver.tudelft.nl/uuid:782b21aa-f713-41c9-a947-13ebcaf81aa1","Huisvestingsmanagement & technisch beheer: Verkenning bank- en verzekeringswezen","Vijverberg, G.A.M.","","1994","Het onderzoeksprogramma Kwaliteitssturing & Beheer wordt uitgevoerd onder leiding van prof. ir. H. de Jonge van de Vakgroep Bouwmanagement & Vastgoedbeheer van de faculteit Bouwkunde (TU-Delft). Het programma kent verschillende thema' s die elk weer bestaan uit verschillende clusters van onderwerpen. In dit rapport staat het thema huisvestingsmanagement centraal. Bij de uitwerking is samengewerkt met prof.ir. H. de Jonge en ir. D.C. Kooijman. Aan bepaalde ondersteunende werkzaamheden (literatuurverzameling en dergelijke) hebben ir. D. Gerlof en een student-assistente (p. Engelbert van Bevervoorde) meegewerkt. Ondersteunende werkzaamheden zijn verricht door de afdeling Beheer en het secretariaat van het OTB (drs. A. van der Heijden en dhr. H. Ruigrok) en de Vakgroep Bouwmanagement & Vastgoedbeheer (ir. W. van der Toom Vrijthoft). Ik dank ir. D. C. Kooijman voor de ondersteuning bij het verzamelen van gegevens uit het enquête-onderzoek Toekomst van de Kantorenmarkt. Tot slot wil ik prof. dr. ir. H. Priemus, prof. ir. H. de Jonge, ir. A. de Scheemaker, ir. D.C. Kooijman en dr. G. Dewulf danken voor hun commentaar op concept versies van het rapport.","facility management; huisvesting; bedrijven","nl","book","Delft University Press","","","","","","","","Architecture","Real Estate & Housing","","","",""
"uuid:ce1e6622-4ad2-4709-b66d-fa2790b7050e","http://resolver.tudelft.nl/uuid:ce1e6622-4ad2-4709-b66d-fa2790b7050e","Facility management en werkplekkosten","Steijger, R.C.A.; Kooijman, D.C.","","1991","","facility management; werkplekken; kantoren; kantoorgebouwen; beheer; gebouwen","nl","book","Delftse Universitaire Pers","","","","","","","","OTB Research Institute for the Built Environment","","","","",""
"uuid:31c7ac69-daa1-48fe-98bb-12e2fd0d7edd","http://resolver.tudelft.nl/uuid:31c7ac69-daa1-48fe-98bb-12e2fd0d7edd","Telescience pilot experiment results using telePODI: Final report","Kuijpers, E.A.","","1990","The Prototype Optical Diagnostic Instrument (PODI) has been extended to Teleoperated PODI (TelePODI) to allow for the study of telescience and image processing for microgee related instrumentation. TelePODI has been integrated in the Telescience Test Bed, phase I, at ESTEC to simulate remote control. Telescience pilot experiments have been executed during two evaluation periods at ESTEC. The experiments were related to: optical systems check, experiment cell exchange, liquid handling, diagnostic performance verification, telemetry and telecommand handling, video handling, preprogramming, reprogramming, remote execution of plume experiment. The evaluation included experiments in which TelePODI was integrated in the Telescience Test Bed at ESTEC and controlled via Olympus from NLR Noordoostpolder. About the integration and evaluation in the Telescience Test Bed is reported.","optical measuring instruments; image processing; test facilities; space processing; breadboard models; spaceborne experiments; remote control; space environment simulation","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:736a403b-29b1-40eb-8630-e082eee1404f","http://resolver.tudelft.nl/uuid:736a403b-29b1-40eb-8630-e082eee1404f","Flexible space-based robot modelling and real-time simulation","Prins, J.J.M.; Dieleman, P.; van Woerkom, P.T.L.M.","","1989","The Hermes manipulation system (HERA) is a sophisticated space manipulator system, which has to perform tasks ranging from berthing to tool operation in various operational modes from fully automatic to purely manual. Development and qualification of such a space-based manipulator must be supported by computer simulation facilities. The HERA system main contractor is Fokker Space & Systems B.V. (FSS). The National Aerospace Laboratory (NLR) in the Netherlands is responsible for the development of the so-called HERA Simulation Facilities (HSF). The paper will ficus on the HSF-P: a first 'pilot' real-time simulation facility. Design concept, simulation models and support tools are discussed in some detail.","computerized simulation; robot arms; Hermes manned spaceplane; manipulators; robot dynamics; research facilities; teleoperators; dynamic models; real time operation; visual control; display devices","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:09899052-17c7-4ac1-84be-90983b754fb9","http://resolver.tudelft.nl/uuid:09899052-17c7-4ac1-84be-90983b754fb9","Flight testing in the Netherlands, an overview","van Doorn, J.T.M.; van der Velde, R.L.","","1988","This report gives an overview of the flight test activities and capabilities in The Netherlands. A general description of the flight test programs of the last decades with civil and military aircraft, helicopters and research aircraft will be given. Some of the highlights of the more recent programs will be presented, i.e. the type certification of the Fokker 50 and Fokker 100 civil transport aircraft, evaluation and certification trials with the military F16 fighter aircraft, helicopter-ship compatibility testing and the determination of the mathematical model of the Cessna Citation 500 for a Phase II flight simulator. Furthermore a short description will be given of the flight test instrumentation and flight test techniques that have become available in The Netherlands during the last decade. Presented at the 73rd Symposiuim of the Flight Mechanics Panel of AGARD; ""Flight Test Techniques"", held at Edwards Air Force Base, USA, 17-20 October 1988.","flight tests; flight test instruments; Netherlands; Fokker Aircraft; research facilities; certification; trajectory measurement; data acquisition; distance measuring equipment","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:cdb1c3cf-6e36-4705-90a1-095c8de7dd3d","http://resolver.tudelft.nl/uuid:cdb1c3cf-6e36-4705-90a1-095c8de7dd3d","De netwerkvoorzieningen op het NLR ten behoeve van het supercomputergebruik - Data communication network at NLR for supercomputer usage","van den Bosch, F.J.; Posthuma de Boer, U.","","1987","For the development of methods for aerospace research and development at NLR large computer facilities are available, among which a NEC SX-2 supercomputer, a Control Data Cyber 180-855 mainframe and various minicomputers and workstation. To provide users a good access to the various systems a high speed computer network is defined, existing of a communication network for terminal data transfer and one for file transfer in lock.","Data transmission; CDC Cyber 180 computer; Supercomputers; NEC computers; Computer network; User requirements; Computer systems performance; Research facilities","nl","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:7e5cf22a-acc3-40b3-94d2-a269752e7ca2","http://resolver.tudelft.nl/uuid:7e5cf22a-acc3-40b3-94d2-a269752e7ca2","The Hermes manipulation system (HERA) simulation facility development","Prins, J.J.M.; Dieleman, P.; Hoogstraten, J.A.","","1987","The Hermes Manipulation System (HERA) will be an important part of the Hermes space plane system. The HERA is a sophisticated space manipulator system, which has to perform tasks ranging from capture and berthing to tool operation in various operational modes from fully automatic to purely manual. The HERA system main contractor is Fokker Space & System B.V. Since early 1985, NLR is involved in the development of the so-called HERA Simulation Facility (HSF) . Presently, the HSF consists of three distinct facilities: - the HSF Pilot (HSFP); - the Non-Real-Time HSF (NRT HSF), and - the Real-Time HSF (RT HSF). The HSFP is a limited real-time simulation facility, which includes a simple Hermes cockpit mockup, a simulation computer and a real-time computer image generation system. The NRT HSF will be the main HERA simulation tool for detailed design, analysis and verification. It will feature the highest model fidelity of all three facilities. The RT HSF prime function is to provide high fidelity real-time ""man-in-the-loop"" and ""hardware-in-theloop"" simulation. The paper will give an in-depth description of the specifications of the three facilities and the present HSFP development. This paper has been presented on the first European In-orbit Operation Technology Symposium, Darmstadt, 7-9 September 1987","robotics; simulation; manipulators; facilities; testing; spaceflight","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:bacc78ad-eb62-4fa3-9a97-1c55e4c2dc16","http://resolver.tudelft.nl/uuid:bacc78ad-eb62-4fa3-9a97-1c55e4c2dc16","A preliminary study of a fluid science laboratory for space station (Columbus). Final report. Part 4. Executive summary","da Riva, I.; Martinez, I.; Martinez-Val, R.; Sanz, A.; Huijser, R.H.; Visser, F.B.; Vreeburg, J.P.B.","","1987","The report presents a design study, within a specified envelope of resources, of laboratory for scientific research on fluid material in a space station, A survey of the scientific background of mlcrogravity experiments identifies candidate investigations. A structured description of available facilities, or earlier design studies, provides a background of engineering possibilities and data. Based on the supporting material on requirements, achievable engineering and feasible operations, a preliminary design concept of a Fluid Science Laboratory is outlined. Recommendations for additional studies, and conclusions are formulated","Mlcrogravlty experiments; Space stations; Spaceborne experiments; Optical measuring Instruments; Flow visualization; Weightless fluids; Requirements; Test facilities; Columbus","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:e3132a3a-b074-4140-ad52-7652bccb184e","http://resolver.tudelft.nl/uuid:e3132a3a-b074-4140-ad52-7652bccb184e","Control loops with human operators in space operations: part II: robotics operations and manual control experiment","van Swieten, A.C.M.; Kampen, S.","","1985","In the study ""Control loops with human operators"" this volume is concerned with the robot arm case. Servicing of satellites and assembly of space structures require robotic operations. These operations are controlled from the ground by human operators. Five operational modes for the combined space- and ground segment are defined: - high level manipulation, - manual augmented, - preprogrammed, - single joint (emergency mode), - direct drive (emergency mode). Three of these modes require direct manual control. The main difficulty in the manual modes is the presence of time delay in the control loop and the way the operator can cope with it. In order to get an impression, human operator performance was assessed for the direct drive mode, in which the system provides the least support. A simple model for this mode showed essentially non-linear actuator behaviour, which made results from the literature not applicable. Therefore, some explorative experiments were done. These experiments showed, that the test subject (operator) could control the system, but a lot of overshooting responses were observed. Possibly, these overshoots can be eliminated by different instructions to the operator, who was instructed in the experiments to be as fast as possible.","human engineering; man machine systems; human performance; research facilities; manipulators; teleoperators; remote control; time lag; control sticks; manual control; space stations; display devices","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:979a16dd-d7d2-4ba8-9dde-91bbe6bd4f8d","http://resolver.tudelft.nl/uuid:979a16dd-d7d2-4ba8-9dde-91bbe6bd4f8d","Control loops with human operators in space operations: part IV: research requirements for human-in-the-loop space teleoperator development","Milgram, P.","","1985","This report presents a discussion of short-term human engineering research requirements for developing rendezvous and docking and space telemanipulation capabilities. A catalogue of research topics related to human-in-the-loop teleoperation performance is given. This is followed by an overview of available resources for model analytical investigation of these research topics and an overview of resources for the establishment of an initial human performance research laboratory for carrying out such investigations and for testing proposed design concepts.","human factors engineering; human performance; space station; man machine systems; spacecraft docking; space rendezvous; robotics; manipulations; teleoperators; research facilities; functional design specifications","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:c4a88773-26af-43ab-847d-2ea8ea308716","http://resolver.tudelft.nl/uuid:c4a88773-26af-43ab-847d-2ea8ea308716","Control loops with human operators in space operations: part I: human engineering analysis, synthesis and evaluation techniques","Milgram, P.; van de Graaff, R.C.; Wewerinke, P.H.","","1985","This report is a tutorial overview for the European Space Agency (ESA) of human engineering approaches and methodologies which are applicable for analysis of performance of human-machine systems, with specific emphasis on space teleoperator applications. Motivated by the presumed active role of the human operator in future space teleoperation missions, the application of human engineering within the various stages of system development is discussed, with emphasis placed on the impact on the development cycle of being able to analyse various aspects of human-in-the-loop system performance. Two approaches to human performance analysis are identified: experimental and theoretical, and both fundamental and practical aspects of each approach are reviewed in detail, with examples. The report concludes with a proposed modelling approach for the analysis of a specific class of supervisory space teleoperator missions, accompanied by a discussion of considerations related to human-computer task allocation for such missions.","human factors engineering; man machine system; research facilities; human performance teleoperation; mathematical models; workloads (psychophysiology); supervisory control; task complexity 1; decision making 1; space crews 1; space stations","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:e7a6c7fe-da4d-4d24-b19c-ab7d21448f67","http://resolver.tudelft.nl/uuid:e7a6c7fe-da4d-4d24-b19c-ab7d21448f67","Control loops with human operators in space operations: part V: executive summary","Milgram, P.","","1985","This volume comprises the executive summary of the final report of the study on Control Loops with Human Operators in Space Operations, performed for the European Space Agency (ESA). It summarises the following four volumes: Part I : Human Engineering Analysis, Synthesis and Evaluation Techniques (NLR) Part II : Robotics Operations and Manual Control Experiment (Fokker) Part III: Rendezvous and Docking Operations and Model Analysis of Performance with Human-in-the-loop (NLR) Part IV : Research Requirements for Human-in-the-loop Space Teleoperator Development (NLR)","space rendezvous; human factors engineering; spacecraft docking; teleoperators; manipulators; man machine systems; human performance; manual control; robotics; supervisory control; decision making; optimal control; research facilities","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:78577b4d-47c9-46a0-97a3-893558bc5be6","http://resolver.tudelft.nl/uuid:78577b4d-47c9-46a0-97a3-893558bc5be6","Final report on a research facility for critical point phenomena in microgravity","Huijser, R.H.","","1985","A conceptual design for a research facility for critical point phenomena in Spacelab's microgravity environment is presented. In the critical point facility (CPF) four experiments can be performed in parallel. The CPF consists of five parts: four experiment units and a service module. The experiment units offer the user-provided (instrumented) experiment cells a periphery consisting of a high precision thermostat and experiment-dedicated electronics/diagnostics. The service module provides an ambient, optical subsystems, and electrical subsystem with microprocessor(s), power supplies and the mechanical structure shared by the four units. Moreover, it establishes the various interfaces towards the Spacelab system.","space processing; spacelab payloads; space station; equipment specifications; physics and chemistry experiment in space; fluid dynamics; critical point; research facilities; optical equipment; microgravity applications; user requirements; interfaces","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:90686a7a-c9f3-4709-916e-d253de816932","http://resolver.tudelft.nl/uuid:90686a7a-c9f3-4709-916e-d253de816932","Control loops with human operators in space operations: part III: rendezvous and docking operations and model analysis of performance with human-in-the-loop","Milgram, P.; van Woerkom, P.T.L.M.; Wewerinke, P.H.","","1984","This report presents the results of an illustrative analysis of human-in-the-loop rendezvous and docking (RVD) performance, for the purpose of demonstrating the practicality of applying human engineering methods and techniques, introduced in Part I of this project, to the analysis of control loops with human operators in space operations. Section I gives a description of the RVD space segment and the related autonomous operations. Section 2 gives model analyses of RVD performance in the final approach phase, for the case in which the human operator is involved in manual control of RVD and for the case in which the human operator is monitoring an automated RVD for the occurrence of failures.","research facilities; human performance; man machine systems; manual control; spacecraft docking; space rendezvous; time lag; optimal control; in-flight monitoring; systems failures; altitude control","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:7b7365a0-75c6-4687-b23e-09b2f26e4436","http://resolver.tudelft.nl/uuid:7b7365a0-75c6-4687-b23e-09b2f26e4436","Testing of spacecraft attitude and orbit control systems","Prins, J.J.M.","","1984","The testing of Spacecraft Attitude and Orbit Control Subsystems is described from the early design up to in-flight, inclusive. Main topics dealt with are: description of three generic AOCS test classes, model philosophy, standardization, subsystem static test methods, subsystem dynamic test methods, generic test equipment and test facilities. Main conclusions are: 1. test scheduling should aim to find problems and errors as early as possible. Consequently system level tests should be descoped in favor of detailed testing of the AOCE (unit level) and in particular subsystem level testing; 2. onboard AOCS software poses new testing problems, especially when RAM located; 3. there is a shift from airbearing-type dynamic tests to servo-tabletype dynamic tests, mainly due to increasing spacecraft sizes, structural flexibility and multi-body dynamics concepts.","airborne/spaceborne computers; checkout; dynamic tests; flexible spacecraft; motion simulators; performance tests; gas bearings; L-SAT; satellite attitude control; space environment simulations; spacecraft models; program verification; (computers); system simulation; test facilities; three axis stabilization; static tests","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:e79ae6ea-d95e-4e6d-ad27-973957fc227a","http://resolver.tudelft.nl/uuid:e79ae6ea-d95e-4e6d-ad27-973957fc227a","De invloed van CAD op research","Loeve, W.; van den Dam, R.F.","","1983","NLR has developed an infrastructure of hardware and software for support of aerodynamic design of aircraft. Organizational and technical aspects of this development are described.","computer aided design; Netherlands; technology utilization; research and development; international cooperation research facilities; aerodynamic configurations user requirements; aircraft design; standardization; aircraft industry; project management","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:aa8d1c6e-f546-4e9e-b42c-fa62375f1ce2","http://resolver.tudelft.nl/uuid:aa8d1c6e-f546-4e9e-b42c-fa62375f1ce2","CAD-systemen voor overdracht van kennis","Loeve, W.; van den Dam, R.F.","","1983","The NLR in the Netherlands renders scientific support and technical assistance for the design and operation of aircraft and spacecraft. The approach of NLR can be characterized by integration of experimental and theoretical investigations. For this an integrated computer and terminal network has been developed that links both NLR laboratory sites. Based on this development, knowledge transfer to other organizations at the moment is realized mainly via computer-based information systems. The CAD systems that belong to these systems have proven to be ideal carriers of technical knowledge. CAD systems to be used in an organization have to be integrated in the existing infrastructure for information processing. As a result, NLR is active in combining the aspects of automation and organization that are relevant for the realization of an integrated infrastructure for information processing.","systems engineering; computer aided design; CAD; aircraft design; technology transfer; computer programs; technology utilization; CDC cyber 170 series computers; research facilities; user requirements; computer networks; Netherlands; mathematical models","nl","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""
"uuid:d7fb0db2-5298-4afd-95a5-404ef0420639","http://resolver.tudelft.nl/uuid:d7fb0db2-5298-4afd-95a5-404ef0420639","The NLR/NGTE joint programme on the measurement of attenuation and impedance in acoustic flow duct facilities.","Zandbergen, T.; Martlew, D.L.","","1981","The National Aerospace Laboratory NLR in the Netherlands and the National Gas Turbine Establishment NOTE operate similar acoustic flow duct facilities but with differences in their respective approaches to the measurement of attenuation and impedance of duct linings. A joint exercise was arranged with the object of comparing methods and results, particularly the direct measurement of impedance with its inference from attenuation measurements.","Aircraft engines; Aeroacoustics; Acoustic measurements; Acoustic transducers; Linings; Acoustic ducts; Test facilities; Acoustic impedance; Transmission loss; Insertion loss","en","report","Nationaal Lucht- en Ruimtevaartlaboratorium","","","","","","Campus only","","","","","","",""