Results 111 to 120 of about 73,550 (313)
Frontiers in Earth ScienceIntroductionThis study aims to investigate the fractal characteristics of acoustic emission (AE) signals during coal-rock rupture and their predictive significance for impact dynamic hazards.MethodsTrue triaxial loading/unloading tests were conducted on ...
Fuquan Gao +10 more
doaj +1 more source
Study of the health effects of coal mining on coal mine workers of Baluchistan
International Journal of Occupational Safety and Health, 2017 Background: The data on coal mine workers was collected from May 2009 to April 2010.Objective:To study the health issues of coal mine workers. Methods: Two types of data were collected. Primary data was obtained through topographic survey and questionnaire while Secondary data about the health issues, medical facilities and other allied facilities of
openaire +4 more sources
Navigation and control of continuous mining systems for coal mining. [PDF]
"The primary focus of the U.S. Bureau of Mines (USBM) is to make mining safer and more healthful for mine workers. The USBM research program is developing technology that will allow computer-assisted operation of mechanized equipment normally used in ...
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Deep Underground Science and Engineering, EarlyView.An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang +5 more
wiley +1 more source
Meitan xuebaoSummarizing the current development status of intelligent and digital technologies in the coal industry, analyzing the new situations and requirements for research and application of intelligent technologies and complete sets of equipment for efficient ...
Guofa WANG +6 more
doaj +1 more source
Coal Mining, Environment and Contemporary Indian Society
, 2013 Mining activity creates tremendous pressure on local flora and fauna particularly where diversion of forest land takes place for mining purposes The effect of mining on ground water level silting of surrounding water bodies and land are also great ...
Dr. Sribas Goswami
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Deep Underground Science and Engineering, EarlyView.The flowchart illustrates rock specimen testing, vibration signal acquisition, and feature extraction with Gaborlet and sparse filtering for classification. Abstract Traditional lithology identification methods mainly rely on core sampling and well‐logging data.
Jian Hao +5 more
wiley +1 more source
Localization of Acoustic Emission Source in Rock Using SMIGWO Algorithm
International Journal of Coal Science & TechnologyThe Grey Wolf Optimization (GWO) algorithm is acknowledged as an effective method for rock acoustic emission localization. However, the conventional GWO algorithm encounters challenges related to solution accuracy and convergence speed.
Jiong Wei +4 more
doaj +1 more source
Meitan xuebaoAiming at the problems of super-large mining space, strong ore pressure and ultra-high coal wall stability control faced by full-mechanized mining face with ultra-large mining height and thick hard roof, this paper takes the 122104 working face of ...
Yajun LEI +11 more
doaj +1 more source
, 1942 Close-up view of coal mining equipment. Pieces of coal are picked-up and moved along a conveyor system. The equipment is set on rails in the ground.
Martin's Photo Shop
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