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degré de houillification

rank

général - iate.europa.eu

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Rank estimation in reduced-rank regression AbstractReduced rank regression assumes that the coefficient matrix in a multivariate regression model is not of full rank....

général - core.ac.uk -

Subtracting a best rank-1 approximation may increase tensor rankIs has been shown that a best rank-R approximation of an order-k tensor may not exist when R ≥ 2 and k ≥ 3....

PDF: citeseerx.ist.psu.edu

Real rank and stable rank of c∗-algebras with tracial rank zero xiaochun fang and xinbing... It is known that a unital separable simple C∗-algebra A with tracial rank zero has stable rank one and real rank zero....

PDF: www.math.uh.edu

Subtracting a best rank-1 approximation may increase tensor rank AbstractIt has been shown that a best rank-R approximation of an order-k tensor may not exist when R⩾2 and k⩾3....

Intermediate rank and property rdWe introduce concepts of intermediate rank for countable groups that “interpolate” between consecutive values of the classical (integer-valued) rank....

PDF: citeseerx.ist.psu.edu

coal rank

industries charbonnière et minière - iate.europa.eu

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Relevance of the coal rank on the performance of the in situ gasification chemical-looping combustion... The feasibility of using fuels ranging from lignite to anthraciteand the effect of the coal rank on the process performance was evaluated....

général - core.ac.uk - PDF: core.ac.uk

Coal reservoir characteristics and their controlling factors in the eastern ordos basin in chinaIn the eastern Ordos basin, due to the diversity of the tectonic setting, coal rank, gas content and permeability, coal reservoirs have differing characteristics....

PDF: doaj.org

Effects of coal rank on physicochemical properties of coal and on methane adsorption...analysis and ultimate analysis obtained from National Engineering Research Center of Coal Gas Control and related literatures at home and abroad, systematically discussed the coal rank effect on its physicochemical properties and methane adsorption capacity, in which the coal rank was shown in Vitrinite reflectance, furthermore, obtained the Semi-quantitative...

PDF: doaj.org

Enrichment mechanism and exploration and development technologies of high coal rank coalbed methane in south qinshui basin, shanxi provinceBased on analysis of the basic geologic characteristics and enrichment controlling factors of the high coal rank coalbed methane (CBM) in south Qinshui Basin in China, its enrichment mode, and exploration and development technologies are studied....

PDF: doaj.org

Mapping and prediction of coal workers’ pneumoconiosis with bioavailable iron content in the bituminous coals...0.016) but not with coal rank (r = 0.59,...

PDF: www.pubmedcentral.nih.gov