Results 131 to 140 of about 38,084 (215)

Investigation on hard‐rock breaking performance and auxiliary mechanism of picks assisted with both‐sided high‐pressure water jets

Deep Underground Science and Engineering, EarlyView.
This paper investigates the high‐pressure water jet‐pick combined rock‐breaking mode (HPC), which employs high‐pressure water jets to precut grooves on both sides of the picks. The rock‐breaking patterns and performance of the HPC method are obtained, and the auxiliary rock‐breaking mechanism of water jet grooving is revealed.
Jingjing Lu, Jiancheng Xiao, Hui Zhou, Xiao Ma, Congcong Hou, Jian Cui, Fujian Yang   +6 more
wiley   +1 more source

Axial strength of back to back cold formed steel short channel sections with unstiffened and stiffened web holes. [PDF]

Sci Rep
Hussein AB, Papp F.
europepmc   +1 more source

Experimental study on burning rate and flame geometry in construction tunnel fires under high geothermal conditions

Deep Underground Science and Engineering, EarlyView.
Abstract As tunnel construction advances in lengths and depths, the construction of tunnels in high geothermal environments has become increasingly common, raising significant fire risks. In this study, a 1:20 scale model tunnel test platform was constructed to investigate the effects of a high geothermal environment on fire behavior in tunnels during ...
Xiaoxian Fei, Maozhen Liu, Jiayi Ha, Linbo Du, Zhi Li, Yuhao Li, Chuangang Fan   +6 more
wiley   +1 more source

Semi‐analytical solution for the stability of deep vertical shaft considering time‐dependent rock‐structure interaction

Deep Underground Science and Engineering, EarlyView.
A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen, Pinqiang Mo, Zhao Lu, Lianfei Kuang, Qiang Zhang, Abolfazl Eslami   +5 more
wiley   +1 more source

Complicated crown fractures in maxillary central incisors restored by fragment reattachment technique: a three-dimensional finite element analysis. [PDF]

BMC Oral Health
Shi D, Zhang W, Feng Y, Wang Q, Sun Z, Liu X, Zhang L.   +6 more
europepmc   +1 more source

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

Deep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang, Jinxiao Liu, Gaoshuo Zhang, Wenxin Li, Changdi He   +4 more
wiley   +1 more source

Equilibrium-Based Finite Element Analysis of the Reissner-Mindlin Plate Bending Problem. [PDF]

Materials (Basel)
Więckowski Z, Świątkiewicz P.
europepmc   +1 more source

Superionic Conduction Through Lattice Engineering of Fluorites Stabilizing Periodic Oxygen Vacancy Network

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Lattice‐engineered fluorite oxide with periodic oxygen vacancy network achieves superionic conduction, Ce4+–Al3+ fluorite cation ordering enables dielectric‐enhanced superionic conduction, surpassing the limitations of conventional doped electrolytes and high fuel cell performance at low temperature through a flattened energy landscape.
Shahzad Rasool, Muhammad Faisal Anwar, Sarfraz, Nabeela Akbar, Wei Zhou, Shuo Wan, Rizwan Raza, Muhammad Afzal, Li Sun, Chenjie Lou, Mingxue Tang, Aristides D. Zdetsis, Hind Himayyid Aljaddani, Mohamed Elfleet, Peter D. Lund, Muhammad Imran Asghar, Yifu Jing, Qi Fan, Bin Zhu   +18 more
wiley   +1 more source

Binocular Stereo Vision-Based Structured Light Scanning System Calibration and Workpiece Surface Measurement Accuracy Analysis. [PDF]

Sensors (Basel)
Zhang X, Luo L, Ma R, Wang Y, Xie S, Zhang H, Zou Y, Wang X, Li X.   +8 more
europepmc   +1 more source

Stretch Tunable Active Frequency Selective Fabric for Dynamically Switchable Bandstop and Transparency

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This stretchable active frequency selective fabric achieves reversible switching between bandstop and transparent states through strain‐induced reconfiguration of its conductive network. Its zero‐power and mechanically tunable characteristics offer potential for wearable electromagnetic functional materials.
Hao Feng, Zhenjia Zhou, Hongling Liu, Yong Wang, Fuwang Guan, Ni Wang, Weidong Yu   +6 more
wiley   +1 more source