Results 41 to 50 of about 357,318 (209)

Study of Methods and Development of Technological Scheme for Heat Removal from Rock Waste Dump [PDF]

, 2017
The aim of this paper is to study the methods and develop technological scheme for thermal energy removal from coal mine rock waste dumps. The prospects of renewable energy sources development in Ukraine are analyzed.
Saik, Pavlo
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Selection of an Optimum Anchoring Method of Composite Rock Stratum Based on Anchor Bolt Support Prestress Field

Applied Sciences
In order to make the anchor bolt support prestress field fully diffuse in the composite rock stratum, improve the overall bearing capacity of surrounding rock, and give full play to the role of active support of the anchor bolt, a self-made 1:1-scale ...
Yiqun Zhou, Jianwei Yang, Chenyang Zhang, Dingyi Li, Bin Hu   +4 more
doaj   +1 more source

Failure Characteristics and Deformation Control Methods of the Bottom Drum of Roadways during Repeated Mining of Multiple Coal Seams

Geofluids, 2022
As the problems of serious bottom drum and roadway broken surrounding rock are influenced by repeated mining in multiple coal seams, the factors affecting the surrounding rock deformation of a +980 m roadway in Faer coal mine by analyzing the rock ...
Changzheng Zhao, Shenggen Cao, Shuyu Du, Chiyuan Che, Xingyao Wang   +4 more
doaj   +1 more source

Valuing the Non-Market Impacts of Underground Coal Mining [PDF]

This paper has been published in a peer-reviewed journal as: Gillespie, R. & M. E. Kragt (2012). "Accounting for nonmarket impacts in a benefit-cost analysis of underground coal mining in New South Wales, Australia." Journal of Benefit-Cost Analysis 3(2):
Bateman, Greene, Hanley, Lambert, Trigg, van Bueren, Windle   +6 more
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Numerical analysis on the factors affecting post-peak characteristics of coal under uniaxial compression

International Journal of Coal Science & Technology
The post-peak characteristics of coal serve as a direct reflection of its failure process and are essential parameters for evaluating brittleness and bursting liability.
Zhiguo Lu, Wenjun Ju, Fuqiang Gao, Taotao Du   +3 more
doaj   +1 more source

Rational Use of Land Resource During the Implementation of Transportless System of Coal Strata Surface Mining [PDF]

, 2017
Surface mining and open pits engineering affect the environment in a very negative way. Among other pollutions that open pits make during mineral deposits exploiting, particular problem is the landscape changing. Along with converting the land into pits,
Gvozdkova, T., Osipov, Yury Mirzoevich, Trifonov, Vladimir Aleksandrovich, Tyulenev, M., Zhironkin, Sergey Aleksandrovich   +4 more
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Coal pillar burst mechanism and prevention based on local mine stiffness (LMS) criterion

Meitan kexue jishu
The frequent occurrence of coal burst seriously threatens the safe and efficient recovery of coal resources. The research on the mechanism of coal burst is the basis of prediction and disaster prevention.
Fuqiang GAO, Zhiguo LU, Xiangyuan PENG, Jinfu LOU, Shuwen CAO, Xiaoqing WANG, Chuang LU, Lei YANG   +7 more
doaj   +1 more source

Natural Resource Curse and Poverty in Appalachian America [PDF]

, 2012
The Appalachian mountain region has long been characterized by deep poverty which led to the formation of the Appalachian Regional Commission (ARC) in 1965.
Betz, Mike, Lobao, Linda, Partridge, Mark   +2 more
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Preset-Time Tracking Control for Nonlinear Cyber-Physical Systems Against Cyber Attacks

IEEE Access
In this article, we developed a novel preset-time adaptive fuzzy tracking control strategy to dispose of the preset-time tracking control issue for a family of nonlinear cyber-physical systems (CPSs), which are subject to spiteful actuator attacks ...
Zhiliang Chen, Wei Zhang, Ting Yu, Yijie Liu, Wang Ren, Kaixiong Zhu, Shilin Li   +6 more
doaj   +1 more source

Determinan Struktur Modal pada Perusahaan Pertambangan Sub Sektor Batubara dan Non Batubara yang Listed di Bursa Efek Indonesia [PDF]

, 2013
The objective of this research is to analyze the influence of partial and simultaneous determinants of capital structure, including the cost of debt, business risk, size, growth, dividend policy, and profitability.
Fatoni, Y. (Yusuf), Paramu, H. (Hadi), Utami, E. S. (Elok)   +2 more
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