Results 111 to 120 of about 5,944 (240)

Surface Crack Detection in Precasted Slab Track in High-Speed Rail via Infrared Thermography. [PDF]

Materials (Basel), 2020
Li ZW, Liu XZ, Lu HY, He YL, Zhou YL.
europepmc   +1 more source

Harvesting of two alpine Artemisia: Effects of an amateur practice on wild plant dynamics

PLANTS, PEOPLE, PLANET, EarlyView.
Wild plants are consumed all over the world, and knowledge of the effects of harvesting is necessary to ensure the sustainability of this activity. Our 3‐year study of two closely related alpine Artemisia species in the Southern Alps revealed a positive impact of harvesting at the plant scale and on the short term.
Ninon Fontaine, Perrine Gauthier, Sophie Caillon, John D. Thompson, Isabelle Boulangeat   +4 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

Uncovering Exotic Topological Quantum States in Pure and Magnetically‐Doped Pyrite OsS2

Advanced Quantum Technologies, EarlyView.
Pyrite‐structured OsS2 is identified as a fragile topological insulator with an unprecedented 602 meV bandgap, featuring helical surface states and van Hove singularities amenable to ARPES verification. Magnetic doping with Pd, Fe, Ni, or Co induces phase transitions to strong topological insulators, semimetals, 3D quantum anomalous Hall insulators ...
Ali Sufyan, Hasan M. Abdullah, Gustav Johansson, Alexander C. Tyner, Hafiz Adil Qayyum, Ghulam Abbas Gilani, Rovi Angelo B. Villaos, Zhi‐Quan Huang, Feng‐Chuan Chuang, J. Andreas Larsson   +9 more
wiley   +1 more source

Temperature field characteristics of slab ends of double-block ballastless track in large daily temperature difference region

Case Studies in Thermal Engineering
In regions with large daily temperature differences, double-block ballastless tracks have experienced severe interface damage and warping deformation at the slab ends.
Youxin Wei, Yu Liu, Bin Yang, Shiping Zhang, Yanxi Zhao   +4 more
doaj   +1 more source

Enabling Under Ice Glider Operations: A Backseat Driver Approach

Journal of Field Robotics, EarlyView.
ABSTRACT Polar Oceans are key locations for forcing global ocean circulation, influencing both global climate and biogeochemical cycles. Due to restricted access to these seasonally and perennially ice‐covered regions, these areas are severely undersampled.
Yaomei Wang, Benjamin Allsup, Georgios Salavasidis, Stephen Woodward, Adeniyi Adenaya, Mike Smart, Alexis Johnson, Felipe Marques Dos Santos, Jake Ludgate, Daniel Matterson, Alvaro Lorenzo, J. Alexander Brearley, Alexander Brian Phillips   +12 more
wiley   +1 more source

The Hidden Costs of Coffee Production in the Eastern African Value Chains

Sustainable Development, EarlyView.
ABSTRACT There is increasing recognition that significant hidden costs associated with agrifood systems are not reflected in market prices. Coffee is among the three most traded agricultural commodities in the world and supports the livelihoods of more than 30 million smallholder households.
Annet Adong, Lukas Kornher, Bezawit Beyene Chichaibelu, Aslihan Arslan   +3 more
wiley   +1 more source

Influence of Rail Welds in Steel Spring Floating Slab Track on the Wheel-Rail Dynamic Response

Chengshi guidao jiaotong yanjiu
ObjectiveRail joint welds can adversely affect vehicles and tracks, necessitating research into the influence of rail welds on the wheel-rail dynamic response of floating slab tracks.
Anyang WANG, Xia LI, Hu TANG, Anbin WANG
doaj   +1 more source

Boosting 2D Black Phosphorus Ambient Stability: Noncovalent Functionalization Using Viologen Molecules

Small, EarlyView.
Viologen derivatives are employed to tackle BPNS oxidation challenges through a noncovalent strategy. Comprehensive characterization techniques, complemented by DFT calculations, provide detailed insights into these interactions. Notably, XPS analysis reveals that MV‐BPNS hybrids experience minimal oxidation under ambient conditions, highlighting the ...
Ishan Sarkar, Cong Guo, Cheng Peng, Yu Wang, Yafei Li, Xiaoyan Zhang   +5 more
wiley   +1 more source

Emerging p‐Block Metal‐Based Electrocatalysts for Energy Conversion

Small, EarlyView.
P‐block metal‐based catalysts have emerged as efficient and sustainable alternatives to precious metal electrocatalysts for energy conversion. This review comprehensively surveys diverse p‐block metal‐based architectures—including anisotropic and homogeneous systems—and systematically elucidates their roles in key electrocatalytic reactions, such as ...
Jack Jon Hinsch, Jinqiu Hu, Li Wang, Yun Chen, Huai Qin Fu, Zhenzhen Wu, Mengqing Hu, Mengyang Dong, Porun Liu, Lei Zhang, Yun Wang, Zhonghong Xia, Liang Wang   +12 more
wiley   +1 more source