Results 131 to 140 of about 687,643 (290)

Vibration of the soil caused by a vehicle moving over the randomly uneven surface of a slab track

, 2003
A vehicle which passes an uneven surface of a slab track causes vibrations of the whole system: the vehicle, the slab track and the subsoil. For a given random unevenness ?w of the slab track surface, covariances of the soil surface motion are ...
Grundmann, H.;Lenz, St.
core   +1 more source

Engineering Halide Perovskites With Chalcogen‐Based Compounds: Insights Into Stability, Interfaces, and Device Integration

Carbon Energy, EarlyView.
Chalcogen‐based compounds are explored as versatile tools to enhance the stability and performance of halide perovskites. Their roles in defect passivation, ion migration suppression, and interface engineering are analyzed, along with impacts on device efficiency.
Atanu Jana, Deblina Das, Sourav Mal, Tarak Nath Mandal, Sangeun Cho   +4 more
wiley   +1 more source

Non-destructive evaluation method for track slabs damaged by impact of ice blocks detached from high-speed trains

Scientific Reports
In winter snowy or rainy weather, the phenomenon of icing under rolling stock during high-speed operation is significantly severe, posing a potential risk of detachment and impact on track structures due to the presence of ice blocks with substantial ...
Xiaolin Song, Xuanran Fu, Dingjun Xiao, Cai Yi   +3 more
doaj   +1 more source

Conductive MOF Engineering for Carbon‐Based Perovskite Solar Cells With High Efficiency, Stability, and Lead Leakage Mitigation

Carbon Energy, EarlyView.
By precisely incorporating the strong electron acceptor TCNQ into Cu3BTC2 pores to construct a conductive MOF interface (TCNQ@Cu3BTC2) via intermolecular π‐π conjugation, this multifunctional layer simultaneously establishes efficient charge transport channels, passivates defects, and optimizes energy‐level alignment, enabling champion devices with 19 ...
Congcong Li, Haojie Sui, Jinhao Dong, Yongqi Xie, Yingsheng Sun, Xuan Wang, Changlin Yao, Qi Zhang, Hai Zhong, Shufang Zhang   +9 more
wiley   +1 more source

Stiffness and Vibration Reduction Performance of Double-block Floating Slab Track Vibration Isolators

Chengshi guidao jiaotong yanjiu
[Objective] To address the shortcomings currently present in high-performance and special vibration-reducing floating slab track systems, such as poor accuracy in maintaining the rail bottom gradient and insufficient construction precision, the CRTS ...
SHEN Shanshan, YU Lei, HUANG Huichao, GU Chengpeng   +3 more
doaj   +1 more source

Non‐Covalent Fluorine–Silica Anchoring of a Molecular Platinum(II) bis(NHC) Catalyst: Structure, Interface Control, and Hydrosilylation Activity

Chemistry – A European Journal, EarlyView.
A Pt(II) bis(NHC) complex is immobilized on mesoporous silica through directional F–Si interactions encoded in the ligand framework. Quantitative 19F{29Si} REDOR experiments and molecular dynamics simulations establish Å‐scale catalyst–support contacts and define the interfacial organization.
Alexander Bergen, Cindy‐Ly Tavera‐Méndez, Valentina Eichhorn, Philip Maier, Elias Harrer, Andreas Scheurer, Frank W. Heinemann, Dirk Zahn, Martin Hartmann, Dorothea Wisser, Karsten Meyer   +10 more
wiley   +1 more source

Measurement and Forecasting of High-Speed Rail Track Slab Deformation under Uncertain SHM Data Using Variational Heteroscedastic Gaussian Process. [PDF]

Sensors (Basel), 2019
Wang QA, Ni YQ.
europepmc   +1 more source

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Modulating Growth Kinetics and Defect Passivation in Ambient‐Air Evaporation‐Spray Deposition Enables Efficient and Stable Rigid/Flexible Perovskite Solar Cells

EcoEnergy, EarlyView.
ATC‐enabled synergistic crystalline regulation and defect passivation via evaporation‐spray deposition realizes 22.68% rigid and 20.13% flexible PSCs with remarkable stability and excellent universality for both rigid and flexible substrates. ABSTRACT Evaporation‐spray technique renders perovskites highly compatible with large‐scale manufacturing ...
Jiahao Cheng, Yifan Li, Yongxuan Zhou, Wenjian Shen, Cong Geng, Guijie Liang, Bin Li, Yong Peng, Jianlin Xu, Zaifang Li, Yi‐Bing Cheng, Wangnan Li   +11 more
wiley   +1 more source