Searched for: subject:"flexible"
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Farrow, Robert (author), Weller, Martin (author), Orr, Dominic (author)
conference paper 2018
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Mountakis, Kiriakos Simon (author)
The research presented in this thesis is part of the Rolling Stock Life Cycle Logistics applied research and development program, conducted by NedTrain. As a company, NedTrain belongs to Nederlandse Spoorwegen (NS; the principal railway company in the Netherlands) and provides maintenance services for the NS train-fleet. The aim of this program...
doctoral thesis 2018
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de Vries, L.J. (author), Verzijlbergh, R.A. (author)
We present a systematic review of the challenges to the regulation of electricity markets that are posed by the integration of variable renewable energy sources. System integration is the key to developing the required flexibility, because flexibility options exist at all system levels and within the competitive as well as in the regulated ...
journal article 2018
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Maljaars, P.J. (author), Windt, Jaap (author), Grasso, Nicola (author), Kaminski, M.L. (author)
In the past several decades, many papers have been published on fluid–structure coupled calculations to analyse the hydro-elastic response of flexible (composite) propellers. The flow is usually modelled either by the Navier–Stokes equations or as a potential flow, by assuming an irrotational flow. Phenomena as separation of the flow, flow...
journal article 2018
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Shekhar, A. (author), Ramirez Elizondo, L.M. (author), Feng, Xianyong (author), Kontos, E. (author), Bauer, P. (author)
While the scientific community recognizes the benefits of DC power transfer, the distribution network operators point out the practical and economic constraints in refurbishing the existing AC network at a medium-voltage level. Some apprehensions like reliability, cost of ownership, and safety in adopting a universal DC distribution may merit...
journal article 2018
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Melese, Y.G. (author)
This thesis focuses on the design of nascent energy and industrial infrastructure networks: networks that still needed to be built and for which neither scope, size, nor participants were certain. It develops systematic design analysis approaches to help improve design under uncertainty by means of flexibility. There are four parts to the thesis...
doctoral thesis 2017
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Henriques, Margarida Vigario (author), Stikkelman, R.M. (author)
Renewable energy sources are currently presented as an economically viable and environmentally safe option in the near future. A major constraint to the incorporation of wind and solar generation at large scale is the increase of variability in the power system. To assure the perpetual balance between power production and gross consumption a...
conference paper 2017
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Andrade, Joana B. (author), Bragança, Luís (author)
Sustainability concerns are in all sectors’ agendas, and building industry is not an exception. Sustainable design should both, reduce the environmental impact caused by buildings throughout their life cycle and positively contribute to people’s well-being by addressing and being adaptable to their needs. There is the need for an early design...
conference paper 2017
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Brand, Alexander (author), Bollinger, Daan (author), de Jong, P. (author), van der Voordt, Theo (author)
Due to structural changes in laws and regulations and ways of financing, Dutch health care organisations are in a phase of reorientation and transition. As such, many strategical issues have to be solved that will influence their corporate real estate strategy. In such a dynamic context real estate represents a high risk. The transition requires...
abstract 2017
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Schipper, H.R. (author), Grunewald, S. (author), Troian, S. (author), Raghunath, P. (author), Schlangen, H.E.J.G. (author), Copuroglu, O. (author)
Expensive CNC (computer numerical controlled)-milled formwork is required for the production of double-curved precast concrete elements for cladding or shell structures. The innovative flexible mould method for economically efficient and sustainable production of such elements, developed at Delft University of Technology, comprises the use of a...
conference paper 2017
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Kreeft, Davey (author), Arkenbout, E.A. (author), Henselmans, P.W.J. (author), Van Furth, Wouter R. (author), Breedveld, P. (author)

A clear visualization of the operative field is of critical importance in endoscopic surgery. During surgery the endoscope lens can get fouled by body fluids (eg, blood), ground substance, rinsing fluid, bone dust, or smoke plumes, resulting in visual impairment. As a result, surgeons spend part of the procedure on intermittent cleaning of...

review 2017
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Geraedts, Rob P. (author), Ruiterkamp, J (author)
Adaptive construction is already for decades on the agenda of the construction sector. The adaptive capacity of a building includes all qualities that enable the building keeping its functionality during the technical life cycle, under altered conditions and needs [1]. Meanwhile, the interest in flexible building has increased significantly...
journal article 2017
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Beyhan, Selami (author), Eghbal Sarabi, F. (author), Lendek, Z (author), Babuska, R. (author)

In this paper, a novel adaptive Takagi-Sugeno (TS) fuzzy observer-based controller is proposed. The closed-loop stability and the boundedness of all the signals are proven by Lyapunov stability analysis. The proposed controller is applied to a flexible-transmission experimental setup. The performance for constant payload in the presence of...

conference paper 2017
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Peters, T.J. (author), Tichem, M. (author)
In this paper, we present positionable photonic waveguide arrays that are developed for optical chip-to-chip alignment. Partly suspended photonic structures, based on the Si3N4/SiO2 material platform, are equipped with thermal actuators enabling the free end of the structures to be positioned with submicrometer accuracy. A finite-element model...
journal article 2017
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Joshi, S. (author), Bagani, R. (author), Beckers, Lucas (author), Dekker, R. (author)
This paper reports the use of rubber—Polybutadiene as an intermediate adhesive layer for improving the adhesion between polyimide (PI) and silicone polydimethylsiloxane (PDMS) which is required for a reliable fabrication of flexible/stretchable body patches for various applications. The adhesive bond initiated by the butyl rubber (BR), apart...
conference paper 2017
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Zhang, Y. (author), Ye, G. (author)
In this paper, a new analytic model for predicting chloride diffusivity in unsaturated cementitious materials is developed based on conductivity theory and Nernst-Einstein equation. The model specifies that chloride diffusivity in unsaturated cementitious materials can be mathematically described as a function of chloride diffusivity in...
conference paper 2017
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Smits, J.E.P. (author)
This paper reviews the use of fiber-reinforced polymers (FRPs) in architectural and structural bridge design in the Netherlands. The challenges and opportunities of this relatively new material, both for the architect and the engineer, are discussed. An inventory of recent structural solutions in FRP is included, followed by a discussion on...
journal article 2016
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Kwakkel, J.H. (author), Haasnoot, M. (author), Walker, W.E. (author)

A variety of model-based approaches for supporting decision-making under deep uncertainty have been suggested, but they are rarely compared and contrasted. In this paper, we compare Robust Decision-Making with Dynamic Adaptive Policy Pathways. We apply both to a hypothetical case inspired by a river reach in the Rhine Delta of the Netherlands...

journal article 2016
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Chen, Xiaoqian (author), Yao, W (author), Zhao, Yong (author), Ouyang, Qi (author)

The reliability analysis approach based on combined probability and evidence theory is studied in this paper to address the reliability analysis problem involving both aleatory uncertainties and epistemic uncertainties with flexible intervals (the interval bounds are either fixed or variable as functions of other independent variables). In...

journal article 2016
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Demirel, H.C. (author), Leendertse, W.L. (author), Volker, L. (author), Hertogh, M.J.C.M. (author)

Public Private Partnerships (PPPs) cover a range of possible relationships between public and private parties. PPP contracts are typically used in contexts of great uncertainty, such as large construction and infrastructure projects that are realized over a longer period of time. Hence, a major challenge in PPPs is to keep construction...

journal article 2016
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