Results 181 to 190 of about 2,169,123 (245)

Experimental study on dynamic behavior analysis of coal and its acoustic emission response characteristics under impact failure

Deep Underground Science and Engineering, EarlyView.
Based on acoustic emission response characteristics, it can be more accurate to identify the damage evolution process of coal under the combined dynamic and static loads, reveal the moment corresponding to coal damage, and identify the characteristics of coal failure. The research results are conducive to the further use of acoustic emission monitoring
Wei Zhang, Huijian Fu, Yingke Liu, Zhaoxi Long, Yang Liu, Tengrui Yang, Yanbo Sun, Mingjun Jiang, Xiaojiang Wen, Yue Niu, Ruixi Cheng   +10 more
wiley   +1 more source

Stress analysis of crack characteristic of anthracite under dynamic loading

Deep Underground Science and Engineering, EarlyView.
In this article, the dynamic compression test of anthracite under five strain rates is carried out, the evolution law of three kinds of crack characteristic stress is analyzed, and a prediction model of the crack characteristic stress threshold considering the strain rate effect is established. Then, the rationality of crack characteristic stress under
Yun Bai, Feng Gao, Ning Luo, Zhizhen Zhang, Yue Niu, Shanjie Su   +5 more
wiley   +1 more source

Study on Permeability Coefficient of Saturated Clay Modified by Fractal Theory and Poiseuille Theory. [PDF]

Materials (Basel)
Guo L, Xin X, He K.
europepmc   +1 more source

Experimental and constitutive modeling investigations on marble in Jinping Underground Laboratory

Deep Underground Science and Engineering, EarlyView.
The objective of this study is to reveal the underlying mechanisms behind the brittle‐ductile transition of the marble through a combination of experimental research and constitutive modeling. A series of triaxial compression and triaxial cyclic loading tests are conducted.
Susheng Wang, Qiang Zhang, Hao Luo, Zhinan Lin   +3 more
wiley   +1 more source

Evaluating the corporate social responsibility agenda for high-cost novel therapies: roles for government and civil society. [PDF]

Health Res Policy Syst
Wong A, Saeed G, Garner S, Kohler J.
europepmc   +1 more source

Characterization of the permeability evolution of hard and soft rocks under hydro‐mechanical coupling conditions

Deep Underground Science and Engineering, EarlyView.
The permeability variation of rocks during complete stress–strain processes was investigated. A mathematical model describing the influence of rock damage on permeability was constructed. The permeability–stress relationship between soft rock and hard rock was proposed.
Zhen Huang, Jian Yu, Yun Wu, Cong Gong, Xiaozhao Li, Kui Zhao, Dickson Moyo   +6 more
wiley   +1 more source

Knowledge as "wings" and resilience as "armor": a study on the impact of civil aviation pilots' personal knowledge management abilities on career resilience. [PDF]

Front Psychol
Wu F, Lai M, Li M.
europepmc   +1 more source

Artificial intelligence guidance in ethically challenging clinical scenarios in child and adolescent psychiatry: a qualitative study in the context of Turkiye. [PDF]

BMC Med Ethics
İçen S, Köken AH.
europepmc   +1 more source

Looking back and abroad while (not) moving forward. Migration, ideas and the stability of citizenship in Spain. [PDF]

Front Sociol
Pasetti F, Schweitzer R.
europepmc   +1 more source

Policies and strategies on active and healthy ageing: a scoping review of the recommendations of European and international agencies. [PDF]

Front Public Health
Caristia S, Viola E, Kalemi T, Servetti D, Poy S, Faggiano F.   +5 more
europepmc   +1 more source