Results 31 to 40 of about 64,455 (258)

Tunnel surrounding rock stability prediction using improved KNN algorithm [PDF]

, 2020
Accurate prediction of the stability of rock surrounding a tunnel is important in order to prevent from rock collapse or reduce the hazard to personnel and traffic caused by such incidents.
Wengang Liu, Jianzhong Liu, Qingjie Qi, Shuai Huang   +3 more
core   +1 more source

Damage evolution and failure warning in early-age flexible-formwork concrete for underground support

Geohazard Mechanics
The evolution law of mechanical properties and damage characteristics of early-age flexible formwork filling concrete have a decisive influence on the stability control of surrounding rock of large deformation roadway.
Zijun Han, Hongtao Liu, Xiaofei Guo, Jialu Liang, Zhongjin Qiao, Chenxiao Cao, Lei Guo, Xiaogang Chen   +7 more
doaj   +1 more source

Analysis of Surrounding Rock Pressure of Deep Buried Tunnel considering the Influence of Seepage

Geofluids, 2022
This paper takes the surrounding rock of deep tunnel as the research object and considers the action mechanism under the influence of seepage. Based on the Mohr-Coulomb criterion, the stress mechanism of surrounding rock of deep buried tunnel is analyzed
Qingchen Yao, Yukun Ma, Zongyang Xiao, Zudi Zhang, Yaxin Lu, Chenyang Liu   +5 more
doaj   +1 more source

Rockburst hazard assessment and prevention and control strategies in the Ruihai gold mine

Frontiers in Earth Science
Ruihai gold mine is a super large underwater gold mine with an initial mining depth of more than 1,400 m. Deep mining may face rockburst disaster. In order to scientifically control the potential rockburst risk, ensure the safety of underground personnel
Pengxiang Li, Pengxiang Li, Zongwen Wang, Bingrui Chen, Bingrui Chen, Jianping Peng, Bochao Zhang, Jinshuai Zhao, Houlin Xie   +8 more
doaj   +1 more source

Classification method of surrounding rock of plateau tunnel based on BP neural network

Frontiers in Earth Science, 2023
Due to the unique high-altitude geological conditions of the railway in the cold region, the problem of high ground stress in the construction process is very prominent.
Li Shuguang, Shen Yanjun, Shen Yanjun, Lin Peng, Xie Jiangsheng, Tian Sisi, Lv You, Ma Wen   +7 more
doaj   +1 more source

Detection Method of Borehole Surrounding Rock Structure Based on Directional Acoustic Scanning

工程科学与技术, 2020
In the construction of infrastructures such as the large-scale water conservancy, hydropower, energy and transportation, it is important to find out the bad geological characteristics in rock mass structure to ensure the smooth construction of the ...
Jinchao WANG, Chuanying WANG, Sheng HU
doaj  

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

Numerical Simulation Analysis Method of the Surrounding Rock and Support Bearing Capacity in Underground Cavern

Energies, 2022
After the excavation of an underground cavern, how the surrounding rock and the support work together to bear the excavation load is an important prerequisite to correctly analyze the joint force characteristics; effectively play the role of support; and
Ming Xiao, Junqing Ren, Binxin Zhao, Chen Chen, Shijie Chen   +4 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

Research on the “three shells” cooperative support technology of large-section chambers in deep mines

International Journal of Mining Science and Technology, 2021
The “three shells” cooperative support technology was proposed herein according to both the large deformation of the rock surrounding large-section chambers in deep mines and the precarious stability of the support structures therein.
Cheng Zhu, Yong Yuan, Wenmiao Wang, Zhongshun Chen, Shengzhi Wang, Huiwei Zhong   +5 more
doaj   +1 more source