Results 91 to 100 of about 324,854 (212)

Energy dissipation damage constitutive relation of CFRP passively confined coal sample

Heliyon
In view of the stability problem of coal pillars left over during coal resource mining, (Carbon Fiber Reinforced Polymer) CFRP sheet is applied in coal pillar reinforcement. Uniaxial compression tests of CFRP passively confined coal samples are carried out to explore the mechanical response mechanism of passively confined coal samples under different ...
Qingwen Li, Fanfan Nie, Chuangchuang Pan, Ling Li, Yuqi Zhong, Mengmeng Yu, Hao Yang   +6 more
openaire   +3 more sources

Deformation mechanism and damage energy evolution of coal body under different gas pressures based on the energy principle

Scientific Reports
With increasing mining depth, the coal pillars of a coal mine will be in a stressful environment characterized by high gas pressures and unidirectional loading.
Yongjiang Yu, Xu Dong, Jiaming Liu, Zhiyuan Song, Zhiqiang Wu, Wenjing Guo   +5 more
doaj   +1 more source

Regional/national forecast of prices of different fuels [PDF]

Calculation of spacely- divided national fuel-power model stimulated an investigation the rules of formation of marginalal costs. Such notions as marginal fiel of the country, marginal consumer of particular fuel and etc.
Murat Albegov
core  

Energy characteristics of impact-induced stress waves and their damage effects on coal

Meitan xuebao
Clarifying the effects of dynamic stress waves on coal-damage behavior supports the development of water-free coal-permeability enhancement methods. This study examines the time–frequency and energy characteristics of stress waves generated by impact ...
Zeqi WANG, Yankun MA, Kuikui CHEN, Bo LI, Zhao CHENG   +4 more
doaj   +1 more source

Anisotropic Damage Mechanism of Coal Seam Water Injection with Multiphase Coupling

ACS Omega
After coal seam water injection, coal mechanical properties will change with brittleness weakening and plasticity enhancement. Aiming at the problem of coal damage caused by the coal seam water injection process, based on nonlinear pore elasticity theory and continuum damage theory, a nonlinear pore elastic damage model considering anisotropic ...
Yuehui Liang, Biming Shi, Jiwei Yue, Chengcheng Zhang, Qijun Han   +4 more
openaire   +3 more sources

The Benefits of Reduced Air Pollutants in the U.S. from Greenhouse Gas Mitigation Policies [PDF]

Policies that reduce emissions of greenhouse gases can simultaneously alter emissions of conventional pollutants that have deleterious effects on human health and the environment.
Burtraw, Dallas, Toman, Michael
core  

Investigation on different composition of powder metallurgy electrode (Cu-W) in high performance edm (HPEDM) on AISI D2 hardened steel [PDF]

, 2013
The ideal selection of manufacturing conditions is one of the most important aspects to take into consideration in the majority of manufacturing processes and particularly in processes related to Electrical Discharge Machining (EDM).
Abdul Hamid, Faizul Ezmat
core  

Long Run Trends in Energy-Related External Costs [PDF]

This paper considers how energy-related external costs change through time. It focuses on one of the key periods in the history of energy. After a period of declining coal prices and soaring consumption which fuelled the Second Industrial Revolution, the
Roger Fouquet
core   +1 more source

Review of the Impact of Cross-Scale Coal Damage on Gas Migration Mechanism under Supercritical CO₂ Conditions. [PDF]

ACS Omega
Jiang Y, Jiang F, Cheng X, Luan H, Wang C, Shi Y, Di X.   +6 more
europepmc   +1 more source

Development and Experimental Analysis of Coalbed Permeability Model Considering Mechanical Properties and Gas Degradation Effects. [PDF]

ACS Omega
Ren H, Zuo Y, Zhou P, Zhao F, Wang S.
europepmc   +1 more source