Searched for: subject:"adaptation"
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Kazasidis, O. (author)
Fast adaptive optics and comparatively slower active optics are cornerstones of modern-day astronomy. Such systems are installed on most current large ground-based observatories in the visible or infrared and are included in the design of all future observatories. Their role is twofold; first, to compensate for astronomical seeing, and second,...
doctoral thesis 2021
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van Hooft, J.A. (author)
Weather and climate influence life in many ways; varying climatic conditions can be associated with varying human cultures and on a day-to-day basis, the weather influences our plans and mood. As such, a proper prediction of the weather is of great importance. Ultimately, the weather is fueled by solar irradiation, which changes sharply over the...
doctoral thesis 2021
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Joosten, Sebastiaan (author), Radaelli, G. (author), Vallery, H. (author)
Inspired by phenomena in the plant world, a meteoro-sensitive rotational actuator is developed. The design uses a hygro-active shell, whose water-based swelling is restricted at selective locations to form a helicoid structure. The influence of geometrical parameters on the performance is investigated using a numerical analysis of various...
journal article 2021
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Roy, S. (author), Lee, Jinoh (author), Baldi, S. (author)
This brief proposes a new adaptive-robust formulation for time-delay control (TDC) under a less-restrictive stability condition. TDC relies on estimating the unknown system dynamics via the artificial introduction of a time delay, often referred to as time-delay estimation (TDE). In conventional TDC, the estimation error, called TDE error, is...
journal article 2021
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Teixeira, Rui (author), Martinez-Pastor, Beatriz (author), Nogal Macho, M. (author), O'Connor, Alan (author)
The present work discusses an innovative approach to metamodeling in reliability that uses a field-transversal rationale. Adaptive metamodeling in reliability is characterized by its large spectra of models and techniques with different assumptions. As a result, the reliability engineer is frequently faced with the highly challenging task of...
journal article 2021
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Nguyen, T.T. (author), Calvert, S.C. (author), Vu, Hai L. (author), van Lint, J.W.C. (author)
Highway bottlenecks are responsible for the majority of traffic congestion. Although the problem of bottleneck detection is not new, contemporary methods have not solved the problem thoroughly with regards to bottleneck locations, activation time, and related congestion tracking. These elements are essential for identifying and characterizing a...
journal article 2021
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Kulsum, U. (author), Timmermans, Jos (author), Haasnoot, Marjolijn (author), Shah Alam Khan, M. (author), Thissen, W.A.H. (author)
To deal with large uncertainties about future climate and socio-economic developments, planners in deltas are adopting an integrative and adaptive planning approach referred to as Adaptive Delta Management (ADM). Bangladesh has used the ADM approach for the development of its adaptive plan; Bangladesh Delta Plan 2100 (BDP 2100). The success...
journal article 2021
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Schoenmakers, Mathijs (author), Yang, Dujuan (author), Farah, H. (author)
Automated vehicles (AVs) are expected to improve traffic flow efficiency and safety. The deployment of AVs on motorways is expected to be the first step in their implementation. One of the main concerns is how human drivers will interact with AVs. Dedicating specific lanes to AVs have been suggested as a possible solution. However, there is...
journal article 2021
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Li, X. (author), Hulshoff, S.J. (author), Hickel, S. (author)
Adaptive Mesh Refinement (AMR) is potentially an effective way to automatically generate computational meshes for high-fidelity simulations such as Large Eddy Simulation (LES). When combined with adjoint methods, which are able to localize error contributions, AMR can generate meshes that are optimal for computing a physical quantity of...
journal article 2021
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Cin, Francesca Dal (author), Hooimeijer, F.L. (author), Silva, Maria Matos (author)
Future sea-level rises on the urban waterfront of coastal and riverbanks cities will not be uniform. The impact of floods is exacerbated by population density in nearshore urban areas, and combined with land conversion and urbanization, the vulnerability of coastal towns and public spaces in particular is significantly increased. The...
journal article 2021
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Lv, Maolong (author), Yu, Wenwu (author), Baldi, S. (author)
This paper proposes a novel set-invariance adaptive dynamic surface control (DSC) design for a larger class of uncertain large-scale nonlinear input-saturated systems. The peculiarity of this class is that no a priori bound on the continuous control gain functions is assumed (i.e., their boundedness cannot be assumed before obtaining system...
journal article 2021
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Alsayyari, F.S. (author), Perko, Z. (author), Tiberga, M. (author), Kloosterman, J.L. (author), Lathouwers, D. (author)
We present an approach to build a reduced-order model for nonlinear, time-dependent, parametrized partial differential equations in a nonintrusive manner. The approach is based on combining proper orthogonal decomposition (POD) with a Smolyak hierarchical interpolation model for the POD coefficients. The sampling of the high-fidelity model to...
journal article 2021
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Roggema, Rob (author), Tilie, Nico (author), Hollanders, M.J. (author)
In the Anthropocene, climate impacts are expected to fundamentally change the way we live in, and plan and design for, our cities and landscapes. Long-term change and uncertainty require a long view, while current planning approaches and policy making are mostly short-term oriented and are therefore not well suited to respond adequately. The...
journal article 2021
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Brand, A.D. (author), Hertogh, M.J.C.M. (author)
Many people associate Building with Nature with its flagship project, the Sand Motor. This mega-nourishment redefined the role of natural processes in civil engineering projects, demonstrating that instead of ‘do no harm’ as the highest possible supporting goal of coastal infrastructure, the design could incorporate natural processes to attain...
journal article 2021
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van Bergen, J. (author), Nijhuis, S. (author), Brand, A.D. (author), Hertogh, M.J.C.M. (author)
The incentive for this publication was to expand the realm of enquiry around the topic of Building with Nature (BwN), for two main reasons. First to gain an interdisciplinary, and therefore deeper, understanding of BwN as an object of study. Secondly, but no less important, is an understanding of how different forms of knowledge contribute to...
journal article 2021
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van Bergen, J. (author), Nijhuis, S. (author), Brand, A.D. (author), Hertogh, M.J.C.M. (author)
This publication offers an overview of the latest cross-disciplinary developments in the field of Building with Nature (BwN) for the protection of coastal regions. The key philosophy of BwN is the employment of natural processes to serve societal goals, such as flood safety. The starting point is a systems-based approach, making interventions...
contribution to periodical 2021
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Dabrowski, M.M. (author), Stead, D. (author), He, J. (author), Yu, Feng (author)
Although the cities in the Pearl River Delta (PRD) in China are amongst the world’s cities most exposed to flooding due to climate change, surprisingly little is done to address this problem. This article explores the barriers to the emergence of policies adapting to the growing flood risk in two PRD cities, Guangzhou and Shenzhen, underlining...
journal article 2021
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Eskafi, Majid (author), Dastgheib, Ali (author), Taneja, P. (author), Ulfarsson, Gudmundur F. (author), Stefansson, Gunnar (author), Thorarinsdottir, Ragnheidur I. (author)
Ports are complex engineering systems that have always been evolving to satisfy the new or changing demands of stakeholders. However, the ever-growing complexity in port sectors in a volatile environment creates a high degree of uncertainty in port planning projects. This study presents a structured framework to deal with uncertainties in the...
journal article 2021
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Azzollini, Ilario Antonio (author), Yu, Wenwu (author), Yuan, Shuai (author), Baldi, S. (author)
A challenging task in network synchronization is steering the network toward a coherent solution, when the dynamics of the constituent systems are heterogeneous and uncertain. In this situation, synchronization can be achieved via adaptive protocols (with adaptive feedback gains or adaptive coupling gains, or both). However, as state-of-the...
journal article 2021
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Denz, P.-R. (author), Sauer, Christiane (author), Fransén Waldhör, Ebba (author), Schneider, Maxie (author), Vongsingha, P. (author)
The research project ADAPTEX pursues the goal of developing adaptive, energy-efficient textile sun shading systems using the smart material Shape Memory Alloy (SMA). Within this approach lies a high potential for novel sun protection systems demanding little energy or even self-sufficiently adapting to external stimuli while reducing operation...
journal article 2021
Searched for: subject:"adaptation"
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