Results 161 to 170 of about 3,077,132 (240)

Reliability assessment of key equipment for coal gasification using artificial intelligence technology. [PDF]

PLoS One
Wu L, Zhang Z, Ding R, Zhang W, Liu M.
europepmc   +1 more source

Research on deformation mechanisms in deep excavation tunnels and the application of the pile foundation-unit-type support. [PDF]

Sci Rep
Gou L, An D, Song Y, Xu H, Xiao W, Jiang X.   +5 more
europepmc   +1 more source

Experimental study of water blocking damage on coal

Journal of Petroleum Science and Engineering, 2017
Water blocking damage, caused by the invasion of external fluids into the coal seams during hydraulic fracturing, is one of the reasons causing coalbed methane wells uneconomic in most areas of China. This paper presents an experimental study of water blocking damage on coal based on the measurements of surface tension, contact angle, gas-phase ...
Xianbo Su, Jinxing Song, Shun Yao
exaly   +6 more sources

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Creep damage characteristics and constitutive model of pre-damage coal

Engineering Failure Analysis
Jinshuai Guo, Liqiang Ma
exaly   +3 more sources

Influence of coal-rock interface inclination on the damage and failure law of original coal-rock combination

Engineering Failure Analysis
Zhiguo Cao
exaly   +3 more sources

Mechanical properties and damage constitutive model of coal in coal-rock combined body

International Journal of Rock Mechanics and Minings Sciences, 2018
Abstract Coal and rock mass bear loads together in underground engineering such as coal mining and roadway support, resulting in different mechanical properties from those of pure coal and rock mass. Accurately obtaining the mechanical properties of coal in coal-rock combined body can help to properly understand the deformation and failure ...
X.S. Liu, Y.L. Tan, J.G. Ning, Y.W. Lu, Q.H. Gu   +4 more
exaly   +2 more sources

Genetic damage in coal and uranium miners

Mutation Research/Genetic Toxicology and Environmental Mutagenesis, 2021
Mining has a direct impact on the environment and on the health of miners and is considered one of the most hazardous occupations worldwide. Miners are exposed to several occupational health risks, including genotoxic substances, which may cause adverse health effects, such as cancer.
Flavio Manoel Rodrigues da Silva, Ronan Adler Tavella, Caroline Lopes Feijo Fernandes, Marina Dos Santos   +3 more
openaire   +2 more sources

Assessment of Genetic Damage in Coal Miners of Punjab, Pakistan

Biological Trace Element Research, 2022
Coal miners are continuously exposed to coal mine dust and airborne particulate that act as a potential risk to their health. The present study evaluates the DNA damage in coal miners using the Buccal Micronucleus Cytome (BMCyt) assay. The samples of the blood and buccal epithelial cells of 40 coal miners and 20 control subjects were taken from coal ...
Fariha, Idrees, Aima Iram, Batool, Muhammad Fayyaz Ur, Rehman, Syed Sikandar, Habib, Aksa, Akram   +4 more
openaire   +2 more sources

Experiment of coal damage due to super-cooling with liquid nitrogen

Journal of Natural Gas Science and Engineering, 2015
Chengzheng Cai, Zhongwei Huang, Zhonghou Shen   +2 more
exaly   +2 more sources

Coal damage mechanism in the developing process of coal and gas outburst

Journal of Coal Science and Engineering (China), 2009
Based on the damage analysis of elliptical aperture, the mechanism of coal damage in the developing process of coal and gas outburst was researched. The results show that the damage to coal by gas is mainly caused by the concentrated tensile stress appearing near the endpoint of the pores.
Hong-wei Jin, Qian-ting Hu, Yun-pei Liang   +2 more
openaire   +1 more source