Results 171 to 180 of about 75,661 (246)

Study on the failure mechanism of the shield excavation face in the sandy cobble stratum under different buried depths

Deep Underground Science and Engineering, EarlyView.
Abstract One of the significant challenges faced in shield tunnel construction is the risk of collapse resulting from abrupt changes in soil conditions in advance of the working face, particularly within the sandy cobble stratum. This study aims to effectively manage these sudden variations and to further investigate the failure mechanisms associated ...
Hua Jiang, Chongyang Liu, Ao Zhang, Xiaoyan Zhang, Yuhang Li   +4 more
wiley   +1 more source

Free-flight and tracking experiments of a multi-parabola laser propulsion vehicle. [PDF]

Sci Rep
Takahashi M, Hayadate Y, Mori K, Hayakawa A.   +3 more
europepmc   +1 more source

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Probing Hidden Vortices and Geometrical Effect via Surface-Projected Quasiparticle States. [PDF]

Nano Lett
Xi R, Liu PY, Liu D, Xue SS, Yu QY, Chen X, Sun JC, Zhang Y, Du X, Ning X, Miao T, Hu P, Yang H, Guan D, Liu X, Liu L, Li Y, Wang S, Liu C, Xu ZA, Zhou Y, Zheng H, Jia J.   +22 more
europepmc   +1 more source

Dynamic cracking properties and generating conditions of coal under rapid gas release

Deep Underground Science and Engineering, EarlyView.
Gas release tests revealed that crack initiation and propagation are jointly controlled by initial crack length, residual strength, and gas release velocity. A new outburst risk coefficient was thus developed from a fracture mechanics perspective, offering a novel predictive approach.
Bing Zhang, Hanpeng Wang, Liang Yuan, Guofeng Yu, Wei Wang, Benliang Chen, Bo Ren   +6 more
wiley   +1 more source

Early Results of Acellular Dermal Matrix as an Interpositional Allograft Following Excision Arthroplasty of a Rheumatoid Forefoot: A Case Report. [PDF]

Malays Orthop J
Huang D, Bhardwaj A, Png WX, Cher E, Rikhraj IS.   +4 more
europepmc   +1 more source

Isoelectronic Alloying in Zintl Phases Mediated the Avoided Crossing and Phonon Softening

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A small amount of Hf doping endows Zr3Ni3Sb4‐Zintl with an unusually low thermal conductivity far exceeding that of similar systems. Two unique phonon mechanisms—avoided crossing and phonon softening—significantly suppress the lattice thermal conductivity. The average thermoelectric figure of merit is improved by 21%.
Zesong Wang, Xiang Wei, Ran Guo, Shun Han, Weihong Gao, Yu‐dong Fu, Zihang Liu   +6 more
wiley   +1 more source

Evaluating the Suitability of Perfusion-Based PD Probes for Use in Altered Gravity Environments. [PDF]

Biosensors (Basel)
MacRobbie M, Chen VZ, Paige C, Otuya D, Stankovic A, Tearney G.   +5 more
europepmc   +1 more source

An Ultra‐Low‐Power and High‐Temperature‐Homogeneity Wafer‐Scale Infrared Source

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A wafer‐scale MEMS infrared source with an Al@nanoforest radiation layer achieves high emissivity and temperature homogeneity at low power, enabling efficient CO2 detection for smart agriculture. Non‐dispersive infrared gas sensors, renowned for their high selectivity and high reliability, are extensively employed in applications of smart agriculture ...
Qirui Zhang, Shuxin Chen, Meng Shi, Xin Liu, Hanhui Li, Ruitao Tao, Yu Liu, Na Zhou, Wenwu Li, Haiyang Mao   +9 more
wiley   +1 more source

Time-resolved X-ray imaging of the current filamentation instability in solid-density plasmas. [PDF]

Nat Commun
Schoenwaelder C, Marret A, Assenbaum S, Curry CB, Cunningham E, Dyer G, Funk S, Glenn GD, Goede S, Khaghani D, Rehwald M, Schramm U, Treffert F, Vescovi M, Zeil K, Glenzer SH, Fiuza F, Gauthier M.   +17 more
europepmc   +1 more source