Results 31 to 40 of about 836,969 (319)
125th anniversary review: fuel alcohol: current production and future challenges [PDF]
, 2011 Global research and industrial development of liquid transportation biofuels are moving at a rapid pace. This is mainly due to the significant roles played by biofuels in decarbonising our future energy needs, since they act to mitigate the deleterious ...
Walker, Graeme M.
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Recent trends and developments in pyrolysis-gas chromatography: review [PDF]
, 2008 Pyrolysis-gas chromatography (Py-GC) has become well established as a simple, quick and reliable analytical technique for a range of applications including the analysis of polymeric materials.
Arias +179 more
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Unlocking preservation bias in the amber insect fossil record through experimental decay. [PDF]
, 2018 Fossils entombed in amber are a unique resource for reconstructing forest ecosystems, and resolving relationships of modern taxa. Such fossils are famous for their perfect, life-like appearance.
A Henwood +60 more
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Brief overview on bio-based adhesives and sealants [PDF]
, 2019 Adhesives and sealants (AS) are materials with excellent properties, versatility, and simple curing mechanisms, being widely used in different areas ranging from the construction to the medical sectors.
Ana C. Fonseca +15 more
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Occurrence of polycadinene in fossil and recent resins [PDF]
Geochimica et Cosmochimica Acta, 1994 Abstract Dammars produced by Dipterocarpaceae growing in Southeast Asia are partly composed of a macromolecule with a polycadinene structure. This polymer is the precursor of many specific compounds encountered in crude oils and sediment extracts from South Asia.
Aarssen, B.G.K. +4 more
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Selective flotation of fossil resin from western coal [PDF]
, 1991 The test program has demonstrated that: (1) technically, the new flotation technologies discovered at the University of Utah and then improved upon by Advanced Processing Technologies, Inc. provide a highly efficient means to selectively recover fossil resin from coal.
Jensen, G. F., Miller, J. D.
openaire +6 more sources
Conservar Património, 2005 A short description of the origin, physical properties, classification and chemical composition of the most abundant natural resins from trees and plants is presented, some of which have been used since immemorial times as adhesives and coatings.
Bárbara Gigante
doaj +1 more source
Scientific Reports, 2022 Mayflies (Ephemeroptera) are among the oldest pterygote insects, with the earliest fossils dating back to the Late Carboniferous. Within mayflies, Leptophlebiidae are a highly diverse and widespread group, with approximately 140 genera and 640 species ...
Roman J. Godunko +4 more
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From Triassic to moderinity: Raman spectroscopy for differentiation of fossil resins age by age
Научно-технический вестник информационных технологий, механики и оптикиThe results of studies of fossil resins of different geological ages and geographic origins are presented. A new method of spectral analysis for differentiation of fossil resins by age from the Triassic period to Modernity is developed.
A. Yu. Zyubin +5 more
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Fat residue and use-wear found on Acheulian biface and scraper associated with butchered elephant remains at the site of Revadim, Israel [PDF]
, 2015 The archaeological record indicates that elephants must have played a significant role in early human diet and culture during Palaeolithic times in the Old World.
A., Zupancich +5 more
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