Results 151 to 160 of about 3,191,259 (277)

Critical expansion points: Mechanical signs of surrounding rock instability

Deep Underground Science and Engineering, EarlyView.
This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen, Chang Deng, Haijun Wang, Lei Tang, Jihong Yu   +4 more
wiley   +1 more source

Design and analysis of group attitude detection device for hydraulic support

Hydraulic support is the key supporting equipment in coal mining operation, and its good working condition is the prerequisite for improving coal mining efficiency and ensuring environmental safety. The geological conditions of large dip, thick and extra-
MENG Zhaosheng (21510406), ZENG Qingliang (21510403), BAN Xinliang (21510404)   +2 more
core   +1 more source

Motion planning and control of an installation robot for attitude adjustment of arc parts in underground shield tunneling

Deep Underground Science and Engineering, EarlyView.
Inspired by spiders, the multilegged walk‐through assembling robot for arc parts achieves high‐precision synchronous control under heavy loads through dual‐layer hydraulic pose dynamics modeling and hierarchical pressure optimization, significantly enhancing shield tunneling assembly efficiency and precision.
Quan Xiao, Guofei Xiang, Liang Liao, Lai Wei, Hongli Wang, Songyi Dian   +5 more
wiley   +1 more source

Shaping the Flow: Impact of Blade Shape on Performance and Hemocompatibility in Rotodynamic Blood Pumps. [PDF]

Artif Organs
Torner B, Klocker S, Crescenti N, Suria AJ, Reithofer H, Hübler M, Zimpfer D, Granegger M.   +7 more
europepmc   +1 more source

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source

A Low-Cost Fourier-Based Dual-Pump Mock Circulatory Loop for Arterial Pressure Waveform Reproduction. [PDF]

Bioengineering (Basel)
Tsui VK, Tavakolian K, Ewert D.
europepmc   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Experimental study on the sand discharge characteristics of a swirling sand dredging device in a reservoir area with multiple mud and sand rivers. [PDF]

Sci Rep
Wang Z, Wang Y, Xi H, Luo T, Miao T, Liu K.   +5 more
europepmc   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

Deep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu, Manchao He, Jun Yang, Yubing Gao, Qiang Fu, Qing Ma, Yajun Wang   +6 more
wiley   +1 more source

Versatile Microfluidic System for Creating Recirculating Unidirectional Flow for On-Chip Cultures of Barrier Tissues. [PDF]

Bioengineering (Basel)
Lee EJ, Chen L, Krassin Z, Herrmann S, Mahler GJ, Esch MB.   +5 more
europepmc   +1 more source