Results 221 to 230 of about 70,133 (264)
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Lignite microorganisms

Biology Bulletin, 2007
The first demonstration that samples of lignite at a depth of 10 m are considerably enriched in bacteria is reported. According to direct microscopy, the abundance of bacteria was about 107 cells/g. About 70% of cells had intact cell membranes and small size, which points to their anabiotic state.
M. A. Bulankina   +2 more
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Lignite-Based Nitrogenous Fertilizers

Energy Sources, 1983
A sample of lignite from Elbistan was oxidized by nitric acid in two stages, using relatively dilute acid in the first stage and concentrated acid in the second stage, and then the oxidized product was ammoniated so that a coal-based fertilizer could be produced. The experiments of all the stages were designed by a 1/2 X full factorial design.
DINCER, S, BARIS, H
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The Elbistan lignite field

International Journal of Coal Geology, 1988
Abstract Samples have been taken systematically from a sequence of immature lignite deposited as a large reserve in Elbistan (37° 48′ N 37° 51′E) 1.5–2 m.y. ago during the Pliocene-Pleistocene transition. The lignite has a high volatile content of 60–70% and a huminite reflectance of 0.27 ± 0.03.
Dogru A.R.   +4 more
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Effect of lignite properties on reactivity of lignite

Energy Conversion and Management, 2001
The purpose of this study is to relate the combustion reactivity of lignite to its physical and chemical properties. Non-isothermal thermogravimetry, where the sample whose temperature increased at a linear rate (40 K/min) was heated in air, has been used to investigate the combustion reactivities of 25 lignite samples originating from different areas ...
Sadriye Küçükbayrak   +3 more
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Senckenberg Lignite: A Lignitized Wood with Apparently Original Cellulose and Lignin

Science, 1969
A lignitized wood of Miocene derivation has been identified to the genus Taxodium . The cell walls of latewood tracheids are Mäule positive. A structurally intact lignin residue is obtained after incubation of the wood in 72 percent sulfuric acid.
P R, Morey, E D, Morey
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Northern Ireland lignite

GeoJournal, 1991
There is no doubt that Northern Ireland's lignite deposits are of high quality and constitute a natural resource of considerable potential value in this small, peripheral part of the European Community. Whether or not one or more will be used commercially and, if so, when depends on an interacting complex of economic, social and political factors.
C. W. Jeffersen, N. C. Mitchel
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Lignite

Scientific American, 1900
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Lignite

Scientific American, 1880
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