Results 91 to 100 of about 4,725,858 (203)
Making Mining Licit: Gold, Commodification, and the Everyday Performance of Law in Colombia
American Anthropologist, Volume 128, Issue 3, Page 480-493, September 2026.ABSTRACT Ethnographies of resource‐making have shown that the extraction of resource value from objects is premised on obviating the emplaced lifeworlds that surrounded objects before they traveled to consumer markets. Much of this literature looks at such supply‐chain disentanglement from the viewpoint of corporate and formal regulatory practices ...
Jesse Jonkman
wiley +1 more source
Numerical simulation of coal wall cutting and lump coal formation in a fully mechanized mining face
International Journal of Coal Science & Technology, 2020 It is difficult to accurately calculate the lump coal rate in a fully mechanized mining face. Therefore, a numerical simulation of the coal wall cutting process, which revealed the crack expansion, development, evolution in the coal body and the ...
Yong Yuan +3 more
semanticscholar +1 more source
Situating Technologies and Work in the Asia Pacific: An Institutional Perspective
Asia Pacific Journal of Human Resources, Volume 64, Issue 3, July 2026.ABSTRACT This article introduces the special issue on technologies and work in the Asia Pacific by developing an institutional perspective on technological change. Drawing on the national business systems framework and an abductive review of 127 studies published between 2015 and 2025, we argue that the consequences of AI, automation, digital platforms,
Mingwei Liu, Hao Zhang, Russell Lansbury
wiley +1 more source
Research situation and prospect of fully mechanized mining technology in thick coal seams in China [PDF]
, 2009 Coal production in China accounts for 1/3 of total output in the world, and nearly half of China’s output is extracted in thick coal seams. Therefore, it is significant to study fully mechanized mining technology in thick coal seams.
Yong, Yuan +4 more
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, 2020 In order to study the influence of different incline angles on the shape of top coal caving body, and the influence of different strike angles and different caving styles on the top coal caving rate of large angle fully mechanized top coal caving face ...
ZHANG Bei, YANG Yuanzhong
core +1 more source
Distribution Law of Spontaneous Combustion Hazard of Coal in Lower Goaf of Close Distance Coal Seams
Meikuang Anquan, 2020 In view of the objective conditions of high sulfur content and local enrichment, large amount of residual coal and closing to upper goaf of coal seams in the 8104 fully mechanized coal mining face of Xinwei Coal Mine, the distribution law of coal ...
JIAO Gengxin, BAI Chengwu, QI Xuyao, QIAO Shi, CHEN Liangzhou, LI Xuewen, JI Youcang, CHEN Liang, SONG Runquan
doaj +1 more source
Do robots boost productivity? A quantitative meta‐study
Journal of Economic Surveys, Volume 40, Issue 3, Page 1531-1571, July 2026.ABSTRACT This meta‐study analyzes the productivity effects of industrial robots. More than 1800 estimates from 85 primary studies are collected. The meta‐analytic evidence suggests that robotization has so far provided, at best, a small boost to productivity. There is strong evidence of publication bias in the positive direction.
Florian Schneider
wiley +1 more source
, 2021 In order to study the technical problems in the mining of irregular working face and the law of underground pressure in the mining process, take the 81308 fully mechanized caving face of Baode Coal Mine as the background, this paper uses theoretical ...
YANG Xiaodong, LI Cunzhou
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Deep Underground Science and Engineering, Volume 5, Issue 2, Page 331-349, June 2026.A scientometric analysis of 2449 journal articles and a comprehensive review of 336 papers were conducted, discussing and identifying challenges and research gaps in rockburst prediction and prevention and proposing an ontology‐based framework for better decision‐making in underground excavations. Abstract With underground engineering projects becoming
Hongchuan Yan +6 more
wiley +1 more source
Characters Evaluation of Ground Pressure in Fully Mechanized Top Coal Caving Face in Soft Coal Seams
, 2011 Based on the big thickness, low stiffiness and other characters of No. 8 coal seam in Huaibei mining area, the moving laws of top coal seam and roof, and distribution law of ground pressure were studied under the fully mechanized top coal caving.
Yang Li, Xiao Hua Wu, Wei Dong Pan
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