Results 121 to 130 of about 452,946 (300)
Frontiers in Earth ScienceThe discovery of coal-type beneficial metal deposits and corresponding genesis mechanisms are cutting-edge issues in current sedimentary environment research. Based on industrial analysis, mineralogy, and geochemical measurement of seven typical mines in
Ziyi Ye, Baoqing Li, Jialiang Cao
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L'armement charbonnier Marcesche (1898-1939) [PDF]
Codrul Cosminului, 2012 In France, Lorient, city located in Brittany, is representative of the medium-sized ports. But how to explain the creation of an industrial and coal shipyard group in the last years of the 19th century in the port of Lorient?
Pascal Boisson
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American Journal of Botany, EarlyView.Abstract Premise Disentangling the ancestry of insular plant lineages is important for resolving their evolutionary histories but often complicated by polyploidy, an overrepresented condition in remote island floras. We used a phylogenomic approach to study the origin of subgenomes of the tetraploid Hawaiian silversword alliance and advance ...
Bruce G. Baldwin +4 more
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Moving towards a "COAL-PEC"? [PDF]
Coal has for many years been considered as a resource of the past and as a result its importance has been underestimated. Yet coal still is the main pillar for generating electricity in most countries: A quarter of the worldwide primary energy ...
Christian von Hirschhausen +2 more
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JGEET: Journal of Geoscience, Engineering, Environment and TechnologyThis research aims to improve the rank of coal in Aceh, which is known to have a relatively high moisture content of 44-52%. The upgrading process is carried out by using hot water, and hot oil as media combined with microwaves to remove moisture content
Fadhilah Al Mardhiyah +4 more
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Angewandte Chemie, EarlyView.Durch die Kombination von polarisationsaufgelöster IRRAS mit hybriden HSE06‐DFT‐Berechnungen ermitteln wir platzspezifische Schwingungsfingerabdrücke, Adsorptionsgeometrien und Bindungsenergien für CO auf MgO‐Oberflächen mit großer Bandlücke. Niedrig koordinierte Mg4c2+‐Stufenkantenplätze werden anstelle von Schottky‐Defekten auf Terrassen als die ...
Wangtao Li +9 more
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Coal and coal-related compounds : structures, reactivity and catalytic reactions /
, 2004 Coal is more abundant than petroleum and natural gas. Further, coal is not localized but can be used by many more countries than petroleum. Therefore, if we can establish coal utilization technology, coal will bring about a great contribution to human ...
Kabe, Toshiaki.
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MoleculesGallium, a critical and strategic material for advanced technologies, is anomalously enriched in certain coal deposits and coal by-products. Recovering gallium from solid residues generated during coal production and utilization can yield economic ...
Ewa Rudnik
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General assessment and estimations of occupational accidents and disasters in Turkey Coal Mines
, 2014 31st Annual International Pittsburgh Coal Conference: Coal - Energy, Environment and Sustainable Development, PCC 2014 -- 6 October 2014 through 9 October 2014 -- 110055Mining sector is very important for all county economy and employment.
Kekeç B., Bilim N., Dündar S.
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THE NIGERIAN COAL CORPORATION: AN EVALUATION OF PRODUCTION PERFORMANCE(1960 1987) [PDF]
COAL WAS DISCOVERED IN NIGERIA IN 1909 AND COAL MINING STARTED WITH A DRIFT MINE AT OGBETE, ENUGU IN 1915. SINCE 1958/59, WHEN COAL PRODUCTION REACHED ITS PEAK, THERE HAS BEEN A PERSISTENT FLUCTUATION IN THE AMOUNT OF COAL PRODUCED IN SUBSEQUENT YEARS ...
DR. GODWIN CHUKWUDUM NWAOBI
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