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den Haan, Robert-Jan (author), Biemond, Bouke (author), Baart, F. (author)Salt intrusion is a growing problem in many deltas around the world. During periods with low river discharges, salinity upstream in a delta increases and affects freshwater availability, ecology, and other delta functions. For example, in the Rhine-Meuse estuary (the Netherlands), brackish water can reach drinking water intakes about 40 km from...abstract 2024
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de Waart, Wessel (author)In the pursuit of reducing the climate impact of aviation, there has been an increased interest in the adoption of renewable energy technologies. Examples of revolutionary technologies include hydrogen fuel cell systems and waste heat recovery using the organic Rankine cycle. The design of viable energy conversion systems for aviation poses...master thesis 2023
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Schoon, Theo (author)The 20th century consists of technological improvements and societal changes due to industrialisation and the two World Wars. Architects, urban planners, artists, critics, and other professions sought to create a better future using different themes and available technologies to visualise an ideal city based on their ideals about people’s needs....student report 2023
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- van Dobben de Bruyn, J. (author) doctoral thesis 2023
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Deng, X. (author)Tidal inlet systems, which consist of back–barrier basins connected to the open sea by one or multiple inlets, are found at many places along sandy coasts. They are valuable for ecology (breeding and feeding areas), economy (gas–mining and sand–mining) and recreation, and are important for coastal safety. But they are also sensitive to external...doctoral thesis 2023
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Sand, M. (author), Hofbauer, B. (author), Alleblas, J. (author)After years of missing the agreed upon goals for carbon reduction, we might conclude that global climate policies set infeasible standards to halt climate change. The widespread non-compliance of many signees with frameworks such as the Paris Agreement indicates that these frameworks were too optimistic regarding the signees’ motivation to act....journal article 2023
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Čulek, J. (author)Utopia, seen not only as a creative and imaginative form, but as a critical and speculative method of devising worlds, spaces, and societal structures different than our own has existed long before receiving its name based on Thomas More’s 1516 book Utopia. Originating in the literary field, utopia has since been used in various creative...conference paper 2023
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Sharma, S. (author), Rigutto, Marcello S. (author), Baur, Richard (author), Agarwal, Umang (author), Zuidema, Erik (author), Balestra, Salvador R.G. (author), Calero, Sofia (author), Dubbeldam, David (author), Vlugt, T.J.H. (author)Ideal Adsorbed Solution Theory (IAST) is a common method for modelling mixture adsorption isotherms based on pure component isotherms. When the adsorbent has distinct adsorption sites, the segregated version of IAST (SIAST) provides improved adsorbed loadings compared to IAST. We have adopted the concept of SIAST and applied it to an explicit...journal article 2023
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Tosto, F. (author), Wheeler, Andrew (author), Pini, M. (author)In this work, we investigate the sources of dissipation in adiabatic boundary layers of non-ideal compressible fluid flows. Direct numerical simulations of transitional, zero-pressure gradient boundary layers are performed with an in-house solver considering two fluids characterized by different complexity of the fluid molecules, namely air...book chapter 2023
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Klisse, M. (author)This dissertation is concerned with the study of the structure of certain deformations of operator algebras associated with Coxeter groups. These operator algebras, called Hecke C*-algebras and Hecke-von Neumann algebras, are operator algebraic completions of Iwahori-Hecke algebras. They occur as natural abstractions of certain endomorphism...doctoral thesis 2022
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- Beemster, Joris (author), van Maren, D.S. (author), Hoitink, A.J.F. (author) conference paper 2022
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Giuffré, A. (author), Pini, M. (author)Non-ideal compressible flows exhibit physical behaviors that are quantitatively and qualitatively different than those of a perfect or ideal gas. As such, the classical gas dynamic relationships that can be found on fluid-mechanics textbooks cannot be directly applied to characterize this type of flows. NiceProp is a tool for interactively...journal article 2022
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Gonzales, A. (author), van Lier, J.B. (author), de Kreuk, M.K. (author)The pre-treatment of waste activated sludge (WAS) has become more common since it often results in improved bioconversion to methane, in both rate and extent. However, thorough insights on the possible effects and mechanisms of mild pre-treatment techniques, such as temperatures <100 °C combined with the addition of H<sub>2</sub>O<sub>2<...journal article 2022
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Jongbloed, Hendrik (author), Schuttelaars, H.M. (author), Dijkstra, Y.M. (author), Donkers, Paul B. (author), Hoitink, Antonius J.F. (author)An idealized width-averaged model is employed to study the influence of wind stress on subtidal salt intrusion and stratification in well-mixed and partially stratified estuaries. We show that even in mild conditions, wind forcing can influence the estuarine salinity structure in a substantial way. By studying the role of wind forcing on...journal article 2022
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Zwart, S.D. (author)With the introduction of large commercial industrial laboratories at the end of the nineteenth century, many types of experiments were institutionalized that do not aim at testing hypotheses. This paper builds a typology of experiments in techno-science, by analysing more than two hundred and fifty real-life technical projects. This resulted in...journal article 2022
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Gebregiorgis, A.B. (author), Singh, A. (author), Diware, S.S. (author), Bishnoi, R.K. (author), Hamdioui, S. (author)Computation-In-Memory (CIM) using memristor devices provides an energy-efficient hardware implementation of arithmetic and logic operations for numerous applications, such as neuromorphic computing and database query. However, memristor-based CIM suffers from various non-idealities such as conductance drift, read disturb, wire parasitics,...conference paper 2022
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Tosto, F. (author), Giuffré, A. (author), Colonna, Piero (author), Pini, M. (author)In this work we examine the flow deviation and its relationship to critical choking, i.e., choking of the meridional component of velocity, in transonic turbine cascades operating with non-ideal compressible flows. To this purpose, a generalized expression of the corrected flow per unit area as a function of both the thermodynamic state and...journal article 2022
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Christofi, Marios (author)The process in which a smooth laminar flow transits to a chaotic to a chaotic, turbulent state, is a topic of particular interest in the sectors of energy technology and aerodynamics. To study the different paths that can be followed during the transition process, various tools and methods have been developed. A preliminary investigation of the...master thesis 2021
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Dangal, S. (author), Smulders, M. (author), Vink, P. (author)This paper investigates whether spring-foam technology in an aircraft seat-pan can reduce weight and at the same time provide equal or better comfort. Firstly, through literature studies and using an iterative design process a prototype seat-pan was designed and developed using spring-foam technology. The (dis)comfort of this seat was...journal article 2021
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Dijkshoorn, Dominic (author)Organic Rankine Cycle (ORC) Power Plants can be of greatimportance in the energy transition as they are suitable for converting wasteheat to power and can utilize renewable energy for their operation. To improvethe efficiency of ORC Power Plants, the physical phenomena inside thesemachines must be understood....master thesis 2020