Results 81 to 90 of about 7,369 (191)
Reversal of fortune in a small, open economy: regional GDP in Belgium, 1896-2000. [PDF]
In this paper we present estimates of regional GDP per capita for certain benchmark years during the first half of the 20th century using the method proposed by Geary and Stark (2002).
Buyst, Erik
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Gong-kuang zidonghua, 2015 In view of requirement of high efficient mining for unmanned fully-mechanized coal mining face, an automatic mining technology scheme of unmanned fully-mechanized coal mining face was proposed which takes cooperative control technology as core, automatic
WANG Feng
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Research and exploration of longwall fully mechanized mining in steeply dipping coal seams
Meitan kexue jishuTo address the challenges of safe and efficient mining in steeply dipping coal seams in China and support the intelligent transformation of the coal industry, this article focuses on fully mechanized longwall mining technology for such seams.
Yongping WU +10 more
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Applicability of siberian placer mining technology to Alaska [PDF]
, 1991 The result of Perestroyka and Glasnost has been an awakening of potential for cooperation between East and West. Nowhere has that been better demonstrated than between Alaska and Magadan Province, USSR. This report summarizes a one year effort financed
Barker, J.C. +3 more
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A moving baseline for evaluation of advanced coal extraction systems [PDF]
, 1981 Results from the initial effort to establish baseline economic performance comparators for a program whose intent is to define, develop, and demonstrate advanced systems suitable for coal resource extraction beyond the year 2000 are reported.
Bickerton, C. R., Westerfield, M. D.
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“Grotesque Faces and Figures”: Child Labourers and Coal Mining Technology in Victorian Nova Scotia [PDF]
, 1988 One consequence of the technological improvements in mining coal in the nineteenth century was the increased use of child labour in Canadian collieries. Focussing on the major coal-producing province of the period, Nova Scotia, this article outlines how ...
McIntosh, Robert
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Mining nonterrestrial resources: Information needs and research topics [PDF]
An outline of topics we need to understand better in order to apply mining technology to a nonterrestrial environment is presented. The proposed list is not intended to be complete.
Daemen, Jaak J. K.
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Applied SciencesFully mechanized mining equipment is core to the coal mining process. The selection process for this type of equipment is complex and heavily relies on experts’ experience for determining equipment parameters.
Yue Wu +3 more
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Simulation of rapid loading systems in iron ore mines [PDF]
, 2010 In the mining industry, it is observed that sudden break-down of any equipment may stop the entire system, resulting in drastic production losses and enhancing the cost production. In this paper, the probability of sudden break down of each equipment are
Sandeep, Manakeshwar, Sumeet , Verma
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Key technologies and practices for safe, efficient, and intelligent mining of deep coal resources
Meitan kexue jishuThe geological conditions of deep coal resources are complex, and intelligent mining is the only way for the safe, efficient, and green development of deep coal resources. The complete set of intelligent mining technology and equipment that adapts to the
WEI LI, Xikui SUN
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