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DASOPOULOS, DIONYSIOS (author)Thick-section high strength steels (HSS) are widely used in engineering applications with requirements of high toughness and strength. Structural components are commonly joined by welding, known to significantly degrade the mechanical properties of steel due to changes in microstructure (e.g., grain size coarsening and martensite-austenite (M-A)...master thesis 2023
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Leonov, Andrey O. (author), Pappas, C. (author)We present a systematic study of tilted spiral states obtained theoretically within the classical Dzyaloshinskii model for magnetic states in cubic non-centrosymmetric ferromagnets. Such tilted spirals are shown to stabilize under the competing effect of cubic and exchange anisotropies inherent to cubic helimagnets. By focusing on the...journal article 2023
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Li, Ji (author), Hao, Xiaodi (author), Shen, Zhan (author), Wu, Yuanyuan (author), van Loosdrecht, Mark C.M. (author)A high moisture content of waste activated sludge (WAS) associated with a low calorific value needs to be deeply dried towards self-supporting incineration. On the other hand, thermal energy with low temperature exchanged from treated effluent has great potential for drying sludge. Unfortunately, low-temperature drying of sludge seems to be...journal article 2023
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Smit, Nienke (author)To prepare the housing stock for the transition to collective, low-temperature heating, minimal renovation strategies for the integration of low-temperature heating and optimal comfort are studied within this research for various single-family housing typologies. Renovation measures on the building and installation scale were considered for the...master thesis 2022
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van Loosdrecht, Mark C.M. (author), Hao, Xiaodi (author), Wu, Yuanyuan (author)摘要： 好氧颗粒污泥技术具有占地面积小、能耗低、剩余污泥量少、抗冲击性强等优点，是<br/>一种可持续的污水处理技术。以北京某污水处理厂实际生活污水作为基质，在中试规模（有效容积<br/>为2.5 m3）反应器中进行好氧颗粒污泥培养，研究了颗粒污泥在低温条件下的稳定性。中试自夏季<br/>开始运行到次年春季结束，共计运行260 d。结果表明，采用我国实际低碳源市政污水可以培养出好<br/>氧颗粒污泥，污泥颗粒化程度可达94%，SVI5/SVI30为1.1 ~ 1.3。冬季低温会造成颗粒污泥的枝状结<br/>构增多、丝状菌生长，进而引起颗粒化比例略有下降，为80%~91%，污泥平均粒径降低，SVI5/SVI30升<br/>高至1.5 ~ 1.8。在冬季低温条件下，通过优化调控进水流量...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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Braun, Moritz (author), Dörner, Alfons (author), ter Veer, Kane F. (author), Willems, Tom (author), Seidel, Marc (author), Hendrikse, H. (author), Høyland, Knut V. (author), Fischer, Claas (author), Ehlers, Sören (author)Fixed offshore wind turbines continue to be developed for high latitude areas where not only wind and wave loads need to be considered but also moving sea ice. Current rules and regulations for the design of fixed offshore structures in ice-covered waters do not adequately consider the effects of ice loading and its stochastic nature on the...journal article 2022
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Ghering, Victor (author), van den Brom, P.I. (author), Itard, L.C.M. (author), Schipper, H.R. (author)Low Temperature Heating (LTH) of buildings is a key feature when switching to renewable energy. Even when the capacity of LTH is high enough, LTH may adversely affect indoor thermal comfort in case buildings are not suitably insulated. This paper goes deeper into methodological issues when conducting a thermal comfort assessment. Thermal comfort...conference paper 2022
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Wang, Sheng (author), Huang, Weidong (author), Liu, X. (author), Lin, P. (author)Asphalt pavements are prone to aging in construction and during service, which can affect the properties of the asphalt. The aging behaviors of high content crumb rubber modified asphalt (HCRMA) were investigated in this paper. The binders were aged in the laboratory and the performances before and after aging were tested using the attenuated...journal article 2022
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Kouba, Vojtěch (author), Hůrková, Kamila (author), Navrátilová, Klára (author), Kok, Dana (author), Benáková, Andrea (author), Laureni, M. (author), Vodičková, Patricie (author), van Loosdrecht, Mark C.M. (author), Weissbrodt, D.G. (author)The application of partial nitritation-anammox (PN/A) under mainstream conditions can enable substantial cost savings at wastewater treatment plants (WWTPs), but how process conditions and cell physiology affect anammox performance at psychrophilic temperatures below 15 °C remains poorly understood. We tested 14 anammox communities, including...journal article 2022
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Zhou, Jianmin (author), Ding, Lei (author), Shi, Mu (author), Lindeboom, R.E.F. (author), Cui, Changzheng (author)In the envisaged hydrogen economy, H<sub>2</sub> could be an interesting alternative electron donor for the denitrification of drinking water or wastewater. The main obstacle to engineering the hydrogenotrophic denitrification process is the low solubility of H<sub>2</sub> in water under atmospheric pressure, which limits denitrification rate...journal article 2022
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Ji, X. (author), van Zeijl, H.W. (author), Romijn, J. (author), van Ginkel, H.J. (author), Liu, X. (author), Zhang, Kouchi (author)The continuous trend to integrate more multi-functions in a package often involves, Heterogeneous Integration of multi-functional blocks in some kind of 3D stacking. The conventional flip chip for die-on-substrate technology applies solder for integration. However, solder joint integration has the disadvantages of restricting height, reflow...conference paper 2022
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Wang, Xinyue (author), Zeng, Zejun (author), Zhang, Kouchi (author), Zhang, Jing (author), Liu, Pan (author)Recent years, the sintered silver paste was introduced and further developed for power electronics packaging due to low processing temperature and high working temperature. The pressure-less sintering technology reduces the stress damage caused by the pressure to the chip, improves reliability, and is widely applied in manufacturing....journal article 2022
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Hähnle, S.A. (author)Superconducting integrated circuits (SICs) represent a natural step forward for devices operating at frequencies from microwave up to sub-millimeter wavelengths. They offer massive miniaturization via compact design based on low-loss superconducting transmission lines. At sub-millimeter wavelengths, the development of SICs is driven by...doctoral thesis 2021
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Balasubramanian, Ashwath (author)The development of fifth-generation (5G) technology is the beginning of a rapid transition in the world of wireless communications. Gbps data rates, minimal latency, and good connectivity are the ultimate aims of 5G. To achieve them, 5G systems employ the mm-Wave frequency band which has a frequency range above 24GHz and so allows for higher...master thesis 2021
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Ghering, Victor (author)Especially in colder climates, like The Netherlands, a large quantity of non-renewable energy is used for space heating by burning natural gas. To meet climate goals, natural gas should be replaced with renewable sources. Reducing the total energy demand for space heating and lowering the design water temperature in a heating system enable more...master thesis 2021
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Rutten, Saskia (author)The Dutch building stock has to switch to alternative energy-efficient heat sources, such as district heating or heat pumps, which will provide a lower supply temperature for the heating system in dwellings. Yet, the consensus is that dwellings need to be intensively renovated, to provide thermal comfort with low-temperature heating. However, it...master thesis 2021
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Malik, Naseem (author)Magnets for High Energy Physics applications built to date are generally superconducting magnets, which operate at cryogenic temperatures. The reliability and safety of the applications are entirely dependent on good design which in turn rely heavily on predictable materials performance. Where at these low temperatures the fracture toughness is...master thesis 2021
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Knepper, S. (author), Pothof, I.W.M. (author), Itard, L.C.M. (author), Infante Ferreira, C.A. (author)A comparative study for a representative case district in the Netherlands with around 2500 dwellings has been executed with the purpose of identifying the best solution for a Low Temperature District Heating (LTDH) with Low Temperature Geothermal Heat (LTGH) as the main heat source. The district is presently connected to the Dutch gas network....conference paper 2021
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Jansen, S.C. (author), Mohammadi, S. (author), Bokel, R.M.J. (author)This paper describes a step-by-step approach for generating various energy concepts for neighbourhoods, based on local renewable resources. The approach is developed within the European research project ‘Smart Urban Isle’ (SUI). While much literature is focussed on comparison or optimization of predefined configurations, the SUI approach adds...journal article 2021