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Ebrahimigharehbaghi, S. (author), Qian, QK (author), Meijer, F.M. (author), Visscher, H.J. (author)The renovation of housing stock in the Netherlands has the potential to help achieving the country's climate change targets. However, there are non-monetary Transaction Cost (TC) factors, such as searching for information and finding a reliable professional/contractor, that present barriers to householders when making the decision to renovate...journal article 2020
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Jia, L. (author), Qian, QK (author), Meijer, F.M. (author), Visscher, H.J. (author)The implementation of energy retrofit of residential buildings faces many risks around the world, especially in China, leading to low retrofit progress. Stakeholders’ proactive risk management is the key to the smooth implementation of retrofit projects but is normally affected by risk perception. Perceived risks instead of real risks are the...journal article 2020
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Guo, Y. (author), Fu, Hao (author), Qian, Yu (author), Markine, V.L. (author), Jing, Guoqing (author)The lateral stability of ballasted track becomes more important because of the safety requirement under the demand of higher train speed and heavier axle load. To increase the lateral resistance of ballast bed, this paper proposes three types of new sleepers, frictional sleepers. The frictional sleepers are sleepers with different shapes of...journal article 2020
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Gao, Peng (author), Chen, Yang (author), Huang, Haoliang (author), Qian, Zhiwei (author), Schlangen, E. (author), Wei, Jiangxiong (author), Yu, Qijun (author)Concrete generally deforms and cracks in a non-uniform manner under drying-induced stress. This study used the lattice fracture model to simulate the drying-induced non-uniform deformations, stresses, and micro-crack propagation in concrete. Experiments were designed to validate the lattice fracture model, wherein the drying-induced non...journal article 2020
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Gao, Peng (author), Chen, Yang (author), Huang, Haoliang (author), Qian, Zhiwei (author), Schlangen, E. (author), Wei, Jiangxiong (author), Yu, Qijun (author)To assess the effect of relative humidity (RH) on drying-induced damage in concrete, the non-uniform strains and microcracks in concrete under different RH conditions were obtained using the digital image correlation (DIC) technique and lattice fracture model. The simulated non-uniform displacements were consistent with those captured using...journal article 2020
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Miao, Xuefei (author), Gong, Yong (author), Caron, Luana (author), You, Yurong (author), Xu, Guizhou (author), Sheptyakov, Denis (author), Manuel, Pascal (author), Qian, Fengjiao (author), Zhang, Yujing (author), Xu, Feng (author), van Dijk, N.H. (author), Brück, E.H. (author)We performed neutron-diffraction experiments and density functional theory calculations to study the magnetostructural coupling in MnCoGeBx (x=0, 0.01, and 0.05) alloys. By varying the amount of boron addition, we are able to freely switch the magnetostructural coupling on and off in the MnCoGe alloys. It is found that the boron addition...journal article 2020
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Qian, QK (author), Ho, Winky K.O. (author), Ochoa, J. Jorge (author), Chan, Edwin H.W. (author)The aging population is one of the demographic changes in the 21st century. World Health Organization defines an age-friendly city as a place that has an “inclusive and accessible urban environment that promotes active aging.” It receives considerable attention in the field of gerontology and contains important aspects of sustainable urban...journal article 2019
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Wu, H. (author), Qian, QK (author), Straub, A. (author), Visscher, H.J. (author)The growing environmental problems, the rapid urbanization, and the disappearance of the demographic dividend in China has brought unprecedented opportunities to the development of prefabricated housing (PH). However, many barriers are hindering the promotion of PH, for instance, cost, lack of regulations, and the shortage of knowledge, among...journal article 2019
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Zhuang, T. (author), Qian, QK (author), Visscher, H.J. (author), Elsinga, M.G. (author), Wu, Wendong (author)Since the late 1970s, China's fast growth of economy and urbanization have driven large-scale urban renewal projects. To deal with complex urban problems, urban renewal requires integrated, coordinated and multifaceted strategies involving a wide range of stakeholders. A deeper understanding of the stakeholders in the decision-making process...journal article 2019
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Lee, Pan (author), Chan, Edwin H.W. (author), Qian, QK (author), Lam, Patrick T.I. (author)Purpose: Design teams have difficulties in assessing building carbon emissions at an early stage, as most building energy simulation tools require a detailed input of building design for estimation. The purpose of this paper is to develop a user-friendly regression model to estimate carbon emissions of the preliminary design of office...journal article 2019
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Liu, M. (author), Cheng, Z. (author), Qian, K. (author), Verhallen, T.W. (author), Wang, C. (author), Wagemaker, M. (author)The development of safe and high-performance Li-metal anodes is crucial to meet the demanded increase in energy density of batteries. However, severe reactivity of Li metal with typical electrolytes and dendrite formation leads to a poor cycle life and safety concerns. Therefore, it is essential to develop electrolytes that passivate the...journal article 2019
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Chen, Wei (author), Fan, J. (author), Qian, Cheng (author), Pu, Bin (author), Fan, Xuejun (author), Zhang, Kouchi (author)The inherent luminous characteristics and stability of LED packages during the operation period are highly dependent on their junction temperatures and driving currents. In this paper, the luminous flux of LED packages operated under a wide range of driving currents and junction temperatures are investigated to develop a luminous flux...journal article 2019
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Qi, Y. (author), Qian, QK (author), Meijer, F.M. (author), Visscher, H.J. (author)Building energy renovations contribute significantly to energy sustainability and environmental protection. These advantages have increased the importance of renovating existing residential buildings in many countries. In China, the government has supported the energy-saving renovation of existing urban residential buildings since 2007. However,...journal article 2019
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Deng, X. (author), Li, Z. (author), Qian, Zhiwei (author), Zhai, Wanming (author), Xiao, Qian (author), Dollevoet, R.P.B.J. (author)Weld-induced squats are a major damage type in high-speed railways as well as in conventional railways. They incur high maintenance costs and endanger operational safety. This paper first presents and analyzes five-year continual field monitoring observations and measurements of squats at rail welds. A hypothesis of the formation and development...journal article 2019
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Ebrahimigharehbaghi, S. (author), Qian, QK (author), Meijer, F.M. (author), Visscher, H.J. (author)The housing stock has a considerable share of 40% in energy consumption and 36% of CO <sub>2</sub> emissions in the EU. In accordance to energy efficiency and emissions targets set by EU, The Netherlands has aimed to renovate 300,000 homes each year, leading to 50% reduction in CO <sub>2</sub> emissions, by 2050. Many factors including low...journal article 2019
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Ebrahimigharehbaghi, S. (author), Qian, QK (author), Meijer, F.M. (author), Visscher, H.J. (author)The European Commission aims to decrease GHG emissions to 80% below 1990 levels by 2050 (EU, 2017). The housing stock has a considerable share that equals to 40% of energy consumption and 36% of emissions in the EU. The current research aims to evaluate the homeowners' energy renovation decisions on the exterior, interior, and insulation...journal article 2019
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Ebrahimigharehbaghi, S. (author), Filippidou, F. (author), van den Brom, P.I. (author), Qian, QK (author), Visscher, H.J. (author)The housing stock has a major share in energy consumption and CO2 emissions in the Netherlands. CO2 emissions increased 2.5% year-on-year in the first quarter of 2018. Higher CO2 emissions were principally due to raised gas consumption for heating in the residential and service sector<sup>1</sup>. Energy efficiency renovations can contribute...journal article 2019
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Zuo, Y. (author), Qian, Zhiwei (author), Garboczi, Edward J. (author), Ye, G. (author)Many particle-based numerical models have been used to simulate the hydration process of cementitious materials. Most of those models employ regular shape particles, like the commonly used spheres, to represent cement, slag, or fly ash, which neglects the influence of particle shape. To deal with this issue, this study extended the Anm material...journal article 2018
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Deng, X. (author), Qian, Zhiwei (author), Li, Z. (author), Dollevoet, R.P.B.J. (author)Rail squats originate from a number of sources, such as corrugations, indentations and welds. A five-year continual field monitoring study was performed on squats induced by corrugations. This study indicated that a small black depression formed at the corrugation under wheel-rail dynamic forces, and then, a primary crack typically initiated...journal article 2018
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Qian, Z. (author), Miedema, H. (author), de Smet, L.C.P.M. (author), Sudhölter, Ernst J. R. (author)A model is presented for the Na<sup>+</sup> and K<sup>+</sup> levels in the irrigation water of greenhouses, specifically those for the cultivation of tomato. The model, essentially based on mass balances, not only describes the accumulation of Na<sup>+</sup> but includes a membrane unit for the selective removal of Na<sup>+</sup> as well. As...journal article 2018