Results 81 to 90 of about 1,770 (209)
Study on the Structural System of Roof in Fully Mechanized Top Coal Caving
, 2011 Based on the structural characters of roof in fully mechanized top coal caving, mechanical analysis, mechanical calculation and simulation experiment were used to explore the particularity of roof structure in fully mechanized top coal caving.
Jie Shen +5 more
core +1 more source
Optimization Research of Hydraulic Support in Fully Mechanized Caving Face
, 2014 According to the problem that the high concentrations of fully mechanized caving face is difficult to control, the mathematical model of solving two-phase flow of gas and dust particles was built by established the k-ɛ-Θ-kp equation.
Lei, Zhang +5 more
core +1 more source
The Economic History Review, EarlyView.Abstract Housework is central to feminist calls for recognition of women's work, economic histories explaining the sexual division of labour, and claims regarding the progressive role of scientific knowledge. Yet little is known about the time it actually took. We address this lacuna.
Sara Horrell, Jane Humphries
wiley +1 more source
Information model of intelligent fully mechanized working face based on OPC UA
, 2022 In the process of data connection of each system in fully mechanized working face, it is necessary to perform frequent correspondence between the data point table and the semantics, which leads to the surge of system interconnection and data sharing cost
ZHANG Chengfeng, GONG Shixin, DU Yibo
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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 +3 more
doaj +1 more source
Caring organizational cultures and the future of work
European Management Review, EarlyView.Abstract There is substantial evidence that workplaces of the future will be dominated by an increase in advanced technology. This trend might lead to the objectification and dehumanization of employees and other stakeholders who interact with organizations as impersonal operations and procedures become normative and employees are subordinated to ...
Alan M. Saks, Jamie A. Gruman
wiley +1 more source
Intelligent recognition method for personnel intrusion hazardous area in fully mechanized mining face [PDF]
To address the problems of low accuracy of video AI recognition of personnel intrusion hazardous areas in fully mechanized mining face caused by factors such as variable personnel scales, and dynamic changes of hazardous areas, an intelligent recognition
Yinan SU +4 more
core +1 more source
The Capital–Labour–State Dynamics of Herbicide Adoption in Rainfed India
Journal of Agrarian Change, EarlyView.ABSTRACT This paper engages debates around the capital–labour–state dynamics of agrarian transitions to address the oft‐studied but still little‐understood question of why farmers adopt herbicides when they do. Over the last several years, smallholder farmers in India have begun using the herbicide bispyribac sodium at breakneck speeds, particularly in
Carly Nichols, Nidhi Kumari
wiley +1 more source
Plant Biotechnology Journal, EarlyView.ABSTRACT Sugar crops, including but not limited to sugarcane, sugar beet, sweet sorghum and stevia, are major sources of sugar production in the world. However, conventional breeding approaches, limited by long breeding cycles, low efficiency and restricted capacity to improve complex traits in sugar crops, are increasingly insufficient to address the ...
Peilin Wang +7 more
wiley +1 more source
, 2018 In view of characteristics of full cutting depth bidirectional cutting technology which was widely used in fully—mechanized coal mining face, a following automation technology of hydraulic support on fully—mechanized coal mining face was put forward ...
GAO Weiyong, ZHANG Minjuan
core +1 more source