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Wang, Xiaoda (author), Zhao, Yuqing (author), Han, Lumin (author), Li, Ling (author), Kiss, A.A. (author)Cylcohexanol is an essential bulk chemical that can be produced via cyclohexene hydration, a liquid-liquid two-phase reaction that is limited by the low reaction rate and the equilibrium conversion. Adding an appropriate solvent is the most promising method to break through these limitations. However, in previous works the solvent was almost...journal article 2023
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Li, Hongyan (author), Li, Z. (author), Qiu, Liangsheng (author), Dong, Sufen (author), Ouyang, Jian (author), Dong, Xufeng (author), Han, Baoguo (author)This study aims to understand the effects and mechanisms of length, diameter, and functional group of carbon nanotubes (CNTs) on rheological behaviors of cementitious composites. The experimental results show that the addition of CNTs decreases the flow index and increases the critical shear rate of cementitious composites. CNTs with a sub...journal article 2023
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Han, C. (author)In the efficiency-driven photovoltaic (PV) industry, the market dominating crystalline silicon (c-Si) technology has been developing towards PV devices with carrier-selective passivating contacts (CSPCs). Especially, the silicon heterojunction (SHJ) solar cell, based on hydrogenated amorphous silicon (a-Si:H) contact stacks, and the poly-Si...doctoral thesis 2022
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Li, Haimei (author), Han, Li (author), Ao, Yibin (author), Wang, Yan (author), Wang, T. (author)Since the reform and opening up of China, the rural built environment has changed dramatically. There is a need to understand how such changes have impacted rural children’s school travel mode choice to design the built environment and plan schools accordingly. This paper combines field measurement methods and questionnaires to obtain data on...journal article 2022
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Wang, Bo (author), Han, Shan (author), Ao, Yibin (author), Liao, Fangwei (author), Wang, T. (author), Chen, Yunfeng (author)Media has paid more attention recently on environmental issues caused by construction companies which imposes public opinion pressure on construction companies and could potentially impact their decision-making processes for green innovations. However, research on the relationship between public opinions pressure and construction company green...journal article 2022
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Wang, J. (author), Meeprasert, J. (author), Han, Z. (author), Wang, H. (author), Feng, Z. (author), Tang, C. (author), Sha, F. (author), Tang, S. (author), Pidko, E.A. (author)The conversion of CO2 with high activity and high selectivity to methanol remains challenging because of both the kinetics and thermodynamics difficulties associated with the chemical reactivity of CO2. Herein, we report a new catalyst of Cd/TiO2 enabling 81% methanol selectivity at 15.8% CO2 conversion with the CH4 selectivity below 0.7%. The...journal article 2022
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Han, Jianbo (author), Chan, Edwin H.W. (author), Yung, Esther Hiu Kwan (author), Qian, QK (author), Lam, Patrick T.I. (author)Given various hindrances in the macro context, how to efficiently develop age-friendly community policies requires further research. Currently, such kinds of frameworks are lacking. This paper aims to develop a policy framework to minimise cost and resolve conflict of interest between different generations in age-friendly community development....journal article 2022
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Wang, Xinyue (author), Dong, Sufen (author), Li, Z. (author), Han, Baoguo (author), Ou, Jinping (author)This study investigates the effects of nanofillers on the interfacial transition zone (ITZ) between aggregate and cement paste by using nanoindentation and statistical nanoindentation techniques. Moreover, the underlying mechanisms are revealed through micromechanical modeling. The nanoindentation results indicate that incorporating...journal article 2022
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Frozen soil hydrological modeling for a mountainous catchment northeast of the Qinghai-Tibet PlateauGao, Hongkai (author), Han, Chuntan (author), Chen, Rensheng (author), Feng, Zijing (author), Wang, Kang (author), Fenicia, Fabrizio (author), Savenije, Hubert (author)Increased attention directed at frozen soil hydrology has been prompted by climate change. In spite of an increasing number of field measurements and modeling studies, the impact of frozen soil on hydrological processes at the catchment scale is still unclear. However, frozen soil hydrology models have mostly been developed based on a bottom...journal article 2022
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Kim, Daehyun D. (author), Han, Heejoo (author), Yun, Taeho (author), Song, Min Joon (author), Terada, Akihiko (author), Laureni, M. (author), Yoon, Sukhwan (author)Microorganisms possessing N<sub>2</sub>O reductases (NosZ) are the only known environmental sink of N<sub>2</sub>O. While oxygen inhibition of NosZ activity is widely known, environments where N<sub>2</sub>O reduction occurs are often not devoid of O<sub>2</sub>. However, little is known regarding N<sub>2</sub>O reduction in microoxic systems...journal article 2022
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Guo, R. (author), Yuan, Peng (author), Han, Xiying (author), He, Xuexia (author), Lu, Jiangbo (author), Li, Qi (author), Dang, Liqin (author), Sun, Jie (author), Liu, Zonghuai (author), Lei, Zhibin (author)The Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> film with metallic conductivity and high pseudo-capacitance holds profound promise in flexible high-rate supercapacitors. However, the restacking of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> sheets hinders ion access to thick film electrodes. Herein, a mild yet green route has been developed to...journal article 2022
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Han, Yu (author), Hegyi, A. (author), Zhang, Le (author), He, Zhengbing (author), Chung, Edward (author), Liu, Pan (author)Conventional reinforcement learning (RL) models of variable speed limit (VSL) control systems (and traffic control systems in general) cannot be trained in real traffic process because new control actions are usually explored randomly, which may result in high costs (delays) due to exploration and learning. For this reason, existing RL-based...journal article 2022
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Wang, Zhongkai (author), Choi, Minsoo (author), Wright, John (author), Lee, Kyoungtae (author), Liu, Zhaokai (author), Yin, Bozhi (author), Han, Jaeduk (author), Du, S. (author), Alon, Elad (author)We present a ring-oscillator-based sub-sampling phase-locked loop (PLL) using a generator-based design flow. A hybrid loop with a delta-sigma ($\Delta \Sigma$) modulator is applied to reduce the loop filter (LF) area and the control ripple. The generator automatically produces the ring oscillator and PLL to meet the provided specifications. The...conference paper 2022
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Zhang, Mengru (author), Han, Fei (author), Liu, Zhe (author), Han, Yufei (author), Li, L. (author), Zhou, Weizhi (author)The contradiction between theoretical metabolism of ammonium assimilation and experiential understanding of conventional biosystems makes the rational optimization of the ammonium-assimilating microbiome through carbon to nitrogen (C/N) ratios perplexing. The effect of different C/N ratios on ammonium-assimilating biosystems was investigated...journal article 2022
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- Han, Jeong Woo (author), Hollmann, F. (author), Luque, Rafael (author), Song, In Kyu (author), Talarico, Giovanni (author), Tatsumi, Takashi (author), Yan, Ning (author) journal article 2022
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Sun, Renjuan (author), Han, Lebing (author), Zhang, Hongzhi (author), Ge, Zhi (author), Guan, Yanhua (author), Ling, Yifeng (author), Schlangen, E. (author), Šavija, B. (author)This paper presents a study on cracking characterization of engineered cementitious composites (ECC) under flexural cyclic load using digital image correlation (DIC) technique. Five stress levels, namely 0.65, 0.75, 0.8, 0.85 and 0.9 of the flexural strength, were applied. Strain map at the side surface was obtained by DIC and used to drive...journal article 2022
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Han, C. (author), Yang, G. (author), Procel Moya, P.A. (author), O'Connor, D. (author), Zhao, Y. (author), Gopalakrishnan, Anirudh (author), Zhang, Xiaodan (author), Zeman, M. (author), Mazzarella, L. (author), Isabella, O. (author)Bifacial (BF) copper-plated crystalline silicon solar cell is an attractive topic to concurrently reduce silver consumption and maintain good device performance. However, it is still challenging to realize a high aspect ratio (AR) of the metal fingers. Herein, a new type of hybrid-shaped Cu finger is electromagnetically fabricated in a BF...journal article 2022
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Zhao, Y. (author), Procel Moya, P.A. (author), Smets, A.H.M. (author), Mazzarella, L. (author), Han, C. (author), Yang, G. (author), Cao, L. (author), Yao, Z. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)Excellent surface passivation induced by (i)a-Si:H is critical to achieve high-efficiency silicon heterojunction (SHJ) solar cells. This is key for conventional single-junction cell applications but also for bottom cell application in tandem devices. In this study, we investigated the effects of (i)a-Si:H deposition temperature on passivation...journal article 2022
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Kim, Jinhyun (author), Um, Yunna (author), Han, Seunghyun (author), Hilberath, T. (author), Kim, Yong Hwan (author), Hollmann, F. (author), Park, Chan Beum (author)The pulp and paper manufacturers generate approximately 50 million metric tons of lignin per annum, most of which has been abandoned or incinerated because of lignin's recalcitrant nature. Here, we report bias-free photoelectrochemical (PEC) oxidation of lignin coupled with asymmetric hydrogenation of C=C bonds. The PEC platform consists of a...journal article 2022
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Xu, R. (author), Zhou, Xu Hui (author), Han, Jiequn (author), Dwight, R.P. (author), Xiao, Heng (author)In fluid dynamics, constitutive models are often used to describe the unresolved turbulence and to close the Reynolds averaged Navier–Stokes (RANS) equations. Traditional PDE-based constitutive models are usually too rigid to calibrate with a large set of high-fidelity data. Moreover, commonly used turbulence models are based on the weak...journal article 2022