Results 51 to 60 of about 1,143 (179)

Research of gas movement law in goaf with parallel double U-shape ventilation mode

Gong-kuang zidonghua, 2014
In order to analyze and master gas distribution and movement law in goaf with parallel double U-shape ventilation mode, a CFD model was established according to characteristics of parallel double U-shape ventilation system of fully mechanized coal mining
HAO Yabing, WANG Fei, WANG Xing, LIU Xiang   +3 more
doaj   +1 more source

Remote fault diagnosis system of fully mechanized mining equipment group based on cloud platform

Gong-kuang zidonghua, 2021
The currently developed remote fault diagnosis systems for fully mechanized mining equipment are mostly for single-machine equipment such as coal shearers, scraper conveyors and belt conveyors, and for expert remote guidance and maintenance systems based
LI Xu, WU Xuefei, TIAN Ye, DONG Bo, DANG Enhui   +4 more
doaj   +1 more source

Understanding Non‐Compliant Work and Employment in the United Kingdom? The Field of Research and Policy Limitations

Industrial Relations Journal, EarlyView.
ABSTRACT Official discourse suggests that 12% of Britain's workforce engages in precarious work where non‐compliance is concentrated. Research reported here suggests this provides a partial picture and that, in specific sectors, non‐compliant employers, organized crime groups and criminalized employment are ceded by the state, where many ...
Ian Clark, Nidhi Sharma, Darryl Dixon, Richard Pickford   +3 more
wiley   +1 more source

Application of Cutting Roof Pressure Relief Pre-fracturing Technology in Fully Mechanized Caving Face in Extra Thick Coal Seam

Meikuang Anquan, 2020
In order to improve the top coal resources at both ends of fully mechanized top coal caving face in extra-thick seam and the recovery rate of coal resources during the initial caving, reduce the impact of initial weighting on the working face during the
SUN Zhenping
doaj   +1 more source

River Sand and Gravel Mining: Global Drivers, Impacts, and Pathways for Sustainable Management

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract River sand and gravel are mined worldwide at volumes that now rival their natural replenishment, yet quantitative knowledge of this mining activity and its consequences lags far behind many other global environmental pressures. We synthesize 411 peer‐reviewed studies published since 1974 within a new Driver‐to‐Management Pathway for ...
Edward Park, Christopher R. Hackney, Dung Duc Tran, Mette Bendixen, Jim Best, Kai Wan Yuen, Hannah Runeckles, Md Sadiul Alam Chyon, Karl Kästner, Sonu Kumar, Halinishi Yusuf, Vanessa Lamb, Lars L. Iversen, Aelis Spiller, Rajiv Sinha, Eduardo Francisco da Silva, Enner Alcantara, Chengcheng Wu, Chengpeng Lu, Chu Jian, Jingyu Wang, Nguyen Duc Thien, Lian Feng, Priyank Pravin Patel, Jiachun Huang, Adam D. Switzer   +25 more
wiley   +1 more source

Innovation progress and prospect on key technologies of intelligent coal mining

Gong-kuang zidonghua, 2018
Innovation and practice were summarized overall about intelligent fully mechanized coal mining in thin coal seam and thinner coal seam, intelligent fully mechanized coal mining of large mining height and super large mining height in thick coal seam, and ...
WANG Guofa, FAN Jingdao, XU Yajun, REN Huaiwei   +3 more
doaj   +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

Numerical Simulation Research of Fully Mechanized Coal Face of Thick Coal Seam

Gong-kuang zidonghua, 2010
According to distribution condition of joint fissures of top coal in front of fully mechanized coal face of one coal mine, a numerical calculation model of fully mechanized coal face was built, UDEC software was used to make numerical simulation for ...
ZHANG Jin-shan, ZHANG Chun-li
doaj  

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

Evolution characteristics of overburden structure in inclined fully mechanized caving under residual coal pillars of the upper layer

Gong-kuang zidonghua
In the stratified fully mechanized caving of ultra-thick coal seams, the inclined layout of upper and lower caving faces leads to lower fully mechanized caving face intermittently crossing residual coal pillars of the upper layer. This results in complex
LIU Yong, WANG Hongwei, WU Xuesong, TIAN Chengpeng, GUAN Rongfu, NIE Yunxiao, FAN Zhiwei, CAO Peipei   +7 more
doaj   +1 more source