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Zhang, Fengyan (author)Geometric algorithms are usually designed based on the assumption of using arbitraryprecision representations. However, in modern computer systems floating-point arithmetic and finite-precision approximation are often used as implementing exact computations would require large computational resources and would be rather slow in the applications....master thesis 2023
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Pauw, Brian R. (author), Smales, Glen J. (author), Anker, Andy S. (author), Annadurai, Venkatasamy (author), Balazs, Daniel M. (author), Bienert, Ralf (author), Bouwman, W.G. (author), Bressler, Ingo (author), Breternitz, Joachim (author)A round-robin study has been carried out to estimate the impact of the human element in small-angle scattering data analysis. Four corrected datasets were provided to participants ready for analysis. All datasets were measured on samples containing spherical scatterers, with two datasets in dilute dispersions and two from powders. Most of the...journal article 2023
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Wilkesmann, Florian (author), Ton, Danique (author), Schakenbos, Rik (author), Cats, O. (author)First and last mile connectivity of public transport hubs is a key component in promoting multi-modal travel. The Dutch train station operator (NS Stations) promotes the combination of bike and train by offering a train station-based round-trip bikesharing (SBRT) scheme, known as ‘OV-fiets’, located at train stations throughout the country....journal article 2023
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Spitzer, Stefan H. (author), Askar, Enis (author), Benke, Alexander (author), Cloney, Chris (author), D'Hyon, Sebastian (author), Dufaud, Olivier (author), Dyduch, Zdzislaw (author), Gabel, Dieter (author), Taveau, J.R. (author)There is no applicable existing standard for the determination of safety characteristics for hybrid mixtures. While developing a new standard in a joint research project in Germany first results from parameter studies led to a standard procedure that can be adopted by laboratories that are already testing dusts in the so called 20L-sphere...journal article 2023
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Stokkink, Q.A. (author), Ileri, Can Umut (author), Epema, D.H.J. (author), Pouwelse, J.A. (author)Web3 is emerging as the new Internet-interaction model that facilitates direct collaboration between strangers without a need for prior trust between network participants and without central authorities. However, one of its shortcomings is the lack of a defense mechanism against the ability of a single user to generate a surplus of identities,...journal article 2023
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Lubelli, B. (author), Aguilar, A. M. (author), Beck, K. (author), De Kock, T. (author), Desarnaud, J. (author), Franzoni, E. (author), Gulotta, D. (author), Ioannou, I. (author), Kamat, Ameya (author), Menendez, B. (author), Rörig-Dalgaard, I. (author), Sassoni, E. (author)Salt crystallization is a major cause of damage in porous building materials. Accelerated salt weathering tests carried out in the laboratory are among the most common methods to assess the durability of material to salt decay. However, existing standards and recommendations for salt weathering tests have limitations in terms of effectiveness...journal article 2022
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Li, Lingjie (author), Yu, Wenjian (author), Batselier, K. (author)In recent years, the application of tensors has become more widespread in fields that involve data analytics and numerical computation. Due to the explosive growth of data, low-rank tensor decompositions have become a powerful tool to harness the notorious curse of dimensionality. The main forms of tensor decomposition include CP...journal article 2022
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Chipli, Shravan (author)In this project, we develop a mathematical framework that automates AC power flow simulations by solving both converging and diverging power flow problems. On the basis of the mathematical framework, we develop an algorithm that can be used to perform year-round AC power flow simulations with little manual intervention. We demonstrate the...master thesis 2021
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Rutten, Marie Sam (author)This study aims to make recommendations about how the Internet can be more thoroughly cleaned of Child Sexual Abuse Material (CSAM), focusing on the Dutch government policies. In the past years, several organizations, including the European Commission, called out the Netherlands for the role Dutch companies have in the hosting of CSAM. According...master thesis 2021
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Liu, J. (author), Möller, M. (author), Schuttelaars, H.M. (author)In finite element methods, the accuracy of the solution cannot increase indefinitely since the round-off error related to limited computer precision increases when the number of degrees of freedom (DoFs) is large enough. Because a priori information of the highest attainable accuracy is of great interest, we construct an innovative method to...journal article 2021
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Geerts, Lucas (author)Wind farms are one of the main means for sustainable energy supply in the Netherlands. In the period of 2013-2020 provincial governments were tasked with siting a certain number of megawatts of wind energy on their territory. This led to the development of wind farms in many Dutch municipalities, of which the decision-making process has in many...master thesis 2020
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Anca-Couce, Andrés (author), Tsekos, C. (author), Retschitzegger, Stefan (author), Zimbardi, Francesco (author), Funke, Axel (author), Banks, Scott (author), Kraia, Tzouliana (author), Marques, Paula (author), Scharler, Robert (author), de Jong, W. (author), Kienzl, Norbert (author)The large variations found in literature for the activation energy values of main biomass compounds (cellulose, hemicellulose and lignin) in pyrolysis TGA raise concerns regarding the reliability of both the experimental and the modelling side of the performed works. In this work, an international round robin has been conducted by 7 partners...journal article 2020
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Gluth, Gregor J.G. (author), Arbi Ghanmi, K. (author), Bernal, Susan A. (author), Bondar, Dali (author), Castel, Arnaud (author), Chithiraputhiran, Sundararaman (author), Dehghan, Alireza (author), Dombrowski-Daube, Katja (author), Dubey, Ashish (author), Ducman, Vilma (author), Peterson, Karl (author), Pipilikaki, Penny (author), Valcke, Siska L.A. (author), Ye, G. (author), Zuo, Y. (author), Provis, John L. (author)Many standardised durability testing methods have been developed for Portland cement-based concretes, but require validation to determine whether they are also applicable to alkali-activated materials. To address this question, RILEM TC 247-DTA ‘Durability Testing of Alkali-Activated Materials’ carried out round robin testing of carbonation...journal article 2020
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Schlotzhauer, Philipp (author), Kovryga, Andriy (author), Emmerich, Lukas (author), Bollmus, Susanne (author), van de Kuilen, J.W.G. (author), Militz, Holger (author)Background and Objectives: In the near future, in Europe a raised availability of hardwoods is expected. One possible sales market is the building sector, where medium dense European hardwoods could be used as load bearing elements. For the hardwood species beech, oak, and sweet chestnut technical building approvals already allow the production...journal article 2019
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Provis, John L. (author), Arbi, Kamel (author), Bernal, Susan A. (author), Bondar, Dali (author), Buchwald, Anja (author), Castel, Arnaud (author), Chithiraputhiran, Sundararaman (author), Ye, G. (author), Zuo, Y. (author)The aim of RILEM TC 247-DTA ‘Durability Testing of Alkali-Activated Materials’ is to identify and validate methodologies for testing the durability of alkali-activated concretes. To underpin the durability testing work of this committee, five alkali-activated concrete mixes were developed based on blast furnace slag, fly ash, and flash-calcined...journal article 2019
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Botta, G. (author), Mor, R.K. (author), Patel, H.C. (author), Aravind, P.V. (author)Bi-directional solid oxide cell systems (Bi-SOC) are being increasingly considered as an electrical energy storage method and consequently as a means to boost the penetration of renewable energy (RE) and to improve the grid flexibility by power-to-gas electrochemical conversion. A major advantage of these systems is that the same SOC stack...journal article 2018
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Gao, Mingyuan (author), Li, Yunwu (author), Lu, Jun (author), Wang, Yifeng (author), Wang, Ping (author), Wang, L. (author)The goal of this study is to develop a vibration-based electromagnetic energy harvesting prototype that provides power to rail-side monitoring equipment and sensors by collecting wheel-rail vibration energy when the train travels. This technology helps power rail–side equipment in off-grid and remote areas. This article introduces the...journal article 2018
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De Koster, P.B.J. (author)This thesis studies the capacitated facility location problem, in which all clients have unit demand and all facilities have integral capacity. A linear relaxation is researched, with corresponding integrality gap bounded by a constant. Recently, such a linear relaxation has been found and proven using an LP-bounding algorithm. The formulation...bachelor thesis 2016
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Steenbergen, M.J.M.M. (author), De Jong, E. (author), Zoeteman, A. (author)During train operation, geometrical irregularities develop in soil-supported ballasted railway tracks as a function of born tonnage. This form of degradation is combatted by periodic maintenance in the form of tamping by specially equipped trains in order to guarantee predefined levels of structural performance. The growth of irregular...conference paper 2015
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Steenbergen, M.J.M.M. (author), De Jong, E. (author), Zoeteman, A. (author)During train operation, geometrical irregularities develop in soil-supported ballasted railway tracks as a function of born tonnage. This form of degradation is combatted by periodic maintenance in the form of tamping by specially equipped trains in order to guarantee predefined levels of structural performance. The growth of irregular...conference paper 2015
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