Searched for: +
(1 - 20 of 58)

Pages

document
Zhi, Danyue (author), Zhao, Hepeng (author), Chen, Yan (author), Song, Weize (author), Song, Dongdong (author), Yang, Y. (author)
The configuration of the urban built environment is critical for promoting sustainability and achieving carbon neutrality. However, existing studies mostly use linear and spatial econometric models to investigate the relationship between urban built environments and traffic carbon dioxide (CO<sub>2</sub>) emissions, in-depth studies exploring...
journal article 2024
document
Feng, Xiangdong (author), Luo, Yuxuan (author), Cai, Tianyi (author), Xuan, Yangfan (author), Zhang, Yunshan (author), Shen, Yili (author), Yang, Changgui (author), Xiao, Qijing (author), Du, S. (author), Zhao, Bo (author)
The growing trend of the Internet of Things (IoT) involves trillions of sensors in various applications. An extensive array of parameters need to be gathered concurrently with high-precision, low-cost, and low-power sensor nodes, such as resistive (R) and capacitive (C) sensors. Single-chip channel fusion can be an effective solution, while...
journal article 2024
document
Yang, G. (author), Gram, Remon (author), Procel Moya, P.A. (author), Han, C. (author), Yao, Z. (author), Singh, M. (author), Zhao, Y. (author), Mazzarella, L. (author), Zeman, M. (author), Isabella, O. (author)
Passivating contacts based on poly-Si have enabled record-high c-Si solar cell efficiencies due to their excellent surface passivation quality and carrier selectivity. The eventual existence of pinholes within the ultra-thin SiOx layer is one of the key factors for carrier collection, beside the tunneling mechanism. However, pinholes are usually...
journal article 2023
document
Zhang, Chunbo (author), Hu, Mingming (author), van der Meide, Marc (author), Di Maio, F. (author), Yang, Xining (author), Gao, Xiaofeng (author), Li, Kai (author), Zhao, Hailong (author), Li, Chen (author)
Meeting the current demand for concrete requires not only mining tons of gravel and sand, but also burning large amounts of fossil fuel resources in cement kilning. Consequently, concrete recycling is crucial to achieving a material-efficient society, especially with the application of various categories of concrete and the goal of phasing...
journal article 2023
document
Zhao, Jiale (author), Yang, Fu Qiang (author), Guo, Yong (author), Ren, X. (author)
As the shallow mineral resources are nearly depleted, the mining of deep resources has become an urgent problem to be studied. The increase in mine depth can lead to the increase of mine heat hazard, which is a critical concern for mining safety/occupational health and safety. However, there are limited review articles available regarding the...
review 2023
document
Zhang, Qunli (author), Zhao, Wenqiang (author), Sun, Donghan (author), Meng, Xiangzhao (author), Hooman, K. (author), Yang, Xiaohu (author)
NO<sub>x</sub> emission reduction from gas boilers has become a key issue in improving air quality. Combustion air humidification technology is gradually being used to reduce NO<sub>x</sub> emissions. However, the NO<sub>x</sub> emission reduction effect of gas boilers at a higher combustion air humidity has been studied less. A flue gas with...
journal article 2023
document
Zhao, Changjiu (author), Zhang, Wenjun (author), Chen, C.Y. (author), Yang, Xue (author), Yue, Jingwen (author), Han, Bing (author)
In the maritime industry, unsafe behaviors exhibited by crew members are a significant factor contributing to shipping and occupational accidents. Among these behaviors, unsafe operation of mooring lines is particularly prone to causing severe accidents. Video-based monitoring has been demonstrated as an effective means of detecting these...
journal article 2023
document
Singh, M. (author), Amarnath, A. (author), Wagner, Fabian (author), Zhao, Y. (author), Yang, G. (author), Mazzarella, L. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)
Single junction crystalline silicon (c-Si) solar cells are reaching their practical efficiency limit whereas perovskite/c-Si tandem solar cells have achieved efficiencies above the theoretical limit of single junction c-Si solar cells. Next to low-thermal budget silicon heterojunction architecture, high-thermal budget carrier-selective...
journal article 2023
document
Esgin, Muhammed F. (author), Ersoy, O. (author), Kuchta, Veronika (author), Loss, Julian (author), Sakzad, Amin (author), Steinfeld, Ron (author), Yang, Xiangwen (author), Zhao, Raymond K. (author)
In this work, we study the blockchain leader election problem. The purpose of such protocols is to elect a leader who decides on the next block to be appended to the blockchain, for each block proposal round. Solutions to this problem are vital for the security of blockchain systems. We introduce an efficient blockchain leader election method...
conference paper 2023
document
Tu, Botao (author), Yang, Xinkui (author), Xu, S. (author), Zhao, Zenggang (author), Zhou, Yuheng (author), Jiang, Jian (author), Fan, Lulu (author), Tu, Liangliang (author)
As a kind of solid waste, using Prestressed High-Strength Concrete Pile Waste Concrete (PPWC) as the replacement for limestone filler in asphalt concrete can not only reduce the accumulation of PPWC and increase its utilization but also avoid the increased road construction costs and environmental degradation associated with limestone mining....
journal article 2023
document
Zhao, Y. (author), Procel Moya, P.A. (author), Han, C. (author), Cao, L. (author), Yang, G. (author), Özkol, E. (author), Alcañiz, Alba (author), Kovačević, K. (author), Limodio, G. (author), Santbergen, R. (author), Smets, A.H.M. (author), Weeber, A.W. (author), Zeman, M. (author), Mazzarella, L. (author), Isabella, O. (author)
Silicon heterojunction (SHJ) solar cells have achieved a record efficiency of 26.81% in a front/back-contacted (FBC) configuration. Moreover, thanks to their advantageous high V<sub>OC</sub> and good infrared response, SHJ solar cells can be further combined with wide bandgap perovskite cells forming tandem devices to enable efficiencies well...
journal article 2023
document
Zhao, Y. (author), Datta, Kunal (author), Paggiaro, Giulia (author), Liu, Hanchen (author), Fardousi, Mohua (author), Santbergen, R. (author), Procel Moya, P.A. (author), Han, C. (author), Yang, G. (author), Weeber, A.W. (author), Zeman, M. (author), Mazzarella, L. (author), Isabella, O. (author)
Monolithic perovskite/c-Si tandem solar cells have attracted enormous research attention and have achieved efficiencies above 30%. This work describes the development of monolithic tandem solar cells based on silicon heterojunction (SHJ) bottom- and perovskite top-cells and highlights light management techniques assisted by optical simulation...
journal article 2023
document
Zhao, Wenbo (author), Qiang, Weile (author), Yang, Fei (author), Jing, Guoqing (author), Guo, Y. (author)
Ballast layer defects are the primary cause for rapid track geometry degradation. Detecting these defects in real-time during track inspections is urgently needed to ensure safe train operations. To achieve this, an indicator, the track degradation rate (TDR) was proposed. This rate is calculated using track geometry inspection data to locate...
journal article 2023
document
Yao, Z. (author), Yang, G. (author), Han, C. (author), Procel Moya, P.A. (author), Özkol, E. (author), Yan, J. (author), Zhao, Y. (author), Cao, L. (author), van Swaaij, R.A.C.M.M. (author), Mazzarella, L. (author), Isabella, O. (author)
Passivating contacts are crucial for realizing high-performance crystalline silicon solar cells. Herein, contact formation by plasma-enhanced chemical vapor deposition (PECVD) followed by an annealing step is focused on. Poly-SiO<sub>x</sub> passivating contacts by combining plasma-assisted N<sub>2</sub>O-based oxidation of silicon (PANO-SiO...
journal article 2023
document
Zhao, X. (author), Huang, Shuangchao (author), Yin, Shan (author), Yang, Jizhong (author), Yang, Z. (author), Tao, Gongquan (author), Wen, Zefeng (author)
A time-domain finite element model is developed to study the transient rolling contact of a driving wheelset over a curved track with Low Adhesion Zones (LAZs) shorter than 1.0 m. LAZs on one rail, i.e., unilateral LAZs occurring more likely, is treated for a speed up to 500 km/h. Structural vibrations of wheelset are analyzed to explain the...
journal article 2023
document
Guo, Hao (author), Zhao, C. (author), Gao, Jianxiang (author), Yang, Wenyun (author), Hu, Xufeng (author), Ma, Xiaobai (author), Jiao, Xuesheng (author), Yang, Jinbo (author), Sun, Kai (author), Chen, Dongfeng (author)
To realize concurrently the high-energy density and excellent cycling stability, maximum utilization of redox couple, minimization of detrimental phase transition, and structural degradation of O3-type layered oxide cathodes are critical for developing Na-ion batteries. Ni<sup>2+</sup>/Ni<sup>4+</sup> redox couple showing multielectron...
journal article 2023
document
Yan, R. (author), Xie, Hui (author), Yang, Fei (author), Veljkovic, M. (author), Zhao, Xiao lin (author)
This paper reports an investigation on the tensile resistance of fully-penetrated butt-welded connections of (ultra-)high-strength steels considering the strength softening of the heat-affected zone (HAZ) and the strengthening due to the transverse constraint. Firstly, a parametric study is carried out to analyse the tensile behaviour of...
journal article 2023
document
Yang, G. (author), Han, C. (author), Procel Moya, P.A. (author), Zhao, Y. (author), Singh, M. (author), Mazzarella, L. (author), Zeman, M. (author), Isabella, O. (author)
Crystalline silicon solar cells with passivating contacts based on doped poly-Si exhibit high optical parasitic losses. Aiming at minimizing these losses, we developed the oxygen-alloyed poly-Si (poly-SiOx) as suitable material for passivating contacts. From passivation point of view, poly-SiOx layers show excellent passivation quality and...
journal article 2022
document
Chang, Ziyi (author), Zhang, Yunshan (author), Yang, Changgui (author), Luo, Yuxuan (author), Du, S. (author), Chen, Yong (author), Zhao, Bo (author)
The size of wireless systems is required to be reduced in many applications, such as ultra-low-power sensor nodes and wearable/implantable devices, where battery and crystal are the two main bottlenecks in system miniaturization. In recent years, battery-free radios based on wireless power transfer (WPT) have shown great potential in...
journal article 2022
document
Zhao, Jiale (author), Yang, Fuqiang (author), Guo, Yong (author), Ren, X. (author)
Emergency management research is used to deal with the increasing number of extreme weather threats in urban areas. This paper uses causal analysis based on systems theory (CAST) to review the subway water ingress accident and the government's emergency management actions in Zhengzhou, Henan Province, during the heavy rainstorm disaster on 20...
journal article 2022
Searched for: +
(1 - 20 of 58)

Pages