Results 91 to 100 of about 357,318 (209)
IEEE AccessIn recent years, the advancement in ranging accuracy and distance requirements in the ship industry has underscored the paramount importance of controlling ranging error.
Zhiliang Chen +4 more
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THE EFFECTS OF THE MINING ACTIVITY OVER THE WATERS FROM JIU VALLEY [PDF]
The upper Jiu Valley, around Petrosani and Lupeni, is Romania�s principal coal mining region. Many miners feel that coal mining in Romania is a moribund industry that will never regain its position of significance. Environmental contaminants associated
Cristina BARBU
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Constraints on the development of coal mining in arctic Alaska based on review of Eurasian arctic practices [PDF]
, 1976 Arctic Alaska's enormous reserves of coal may be a significant future source of energy for the United States and for the Pacific Basin. Large coal reserves have been developed in the Arctic portions of Eurasia, where problems similar to those that ...
Johansen, N.I. +3 more
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Coal supply for California [PDF]
The potential sources and qualities of coals available for major utility and industrial consumers in California are examined and analyzed with respect to those factors that would affect the reliability of supplies.
Yancik, J. J.
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Meitian dizhi yu kantanBackgroundThe exploitation of the Carboniferous-Permian coalfields in China is gradually transitioning toward coal seams in lower formations. In this context, issues including the confined water hazards in the floor and karst water preservation become ...
Zhenli FAN +4 more
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Reclamation Laws and Costs of Strip Mined Land in North Dakota [PDF]
Coal is becoming more important as a source of energy. There are16 billion tons of economically surface minable coal in North Dakota underlying 700,000 acres.
Gronhovd, Duane E., Scott, Donald F.
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Pertambangan Batu Bara: Antara Mendulang Rupiah Dan Menebar Potensi Konflik [PDF]
, 2012 In East Kalimantan, mining sector contributes more than three quarter of the province's Gross Domestic Product. Given the high dependency on this sector, demand fl uctuation for mining products will have a signifi cant effect on the provincial economy ...
Siburian, R. (Robert)
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Shock and VibrationMetal mesh, as a critical component of the bolt support system, directly influences the effectiveness of roadway support. To reveal the dynamic mechanical properties of commonly used metal meshes in roadways subjected to rockburst conditions and to ...
Shuwen Wang +5 more
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NORTH DAKOTA LIGNITE ENERGY INDUSTRY'S CONTRIBUTION TO THE STATE ECONOMY FOR 2003 AND PROJECTED FOR 2004 [PDF]
This report provides estimates of the lignite industry's contribution to the North Dakota economy, using key economic indicators such as retail trade activity, personal income, total business activity, employment, and tax revenues.
Coon, Randal C., Leistritz, F. Larry
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Risk sources quantitative identification of heavy metals in coal mining hinterland river sediments, Northern China. [PDF]
Sci RepZhang Y +7 more
europepmc +1 more source