Výsledky vyhledávání - "Kay Scheffler"

Autor: Anja Schué, Kay Scheffler

Publikováno v: JOT Journal für Oberflächentechnik. 50:58-61

In der Automobilindustrie ist die technische Sauberkeit funktionskritischer Komponenten ein entscheidendes Kriterium fur die Lebensdauer der Teile. Daher kommen Mikroskop-Systeme mit Auswertesoftware zum Einsatz. Sie ermoglichen vor allem bei Injekto

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5150dc687b30a74ec0cab06dbac56b3
https://doi.org/10.1007/bf03241983

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Aromatized arborane/fernane hydrocarbons as biomarkers for cordaites

Autor: Stephan Hoernes, Volker Wilde, Hans Kerp, Kay Scheffler, Wilhelm Püttmann, Stefan Auras

Publikováno v: Naturwissenschaften. 93:616-621

Previous palaeobotanical and palynological studies on coals from Euramerican Pennsylvanian ( identical with Late Carboniferous) coal basins indicate a major change in coal-swamp floras, especially at the Westphalian-Stephanian ( approximately Kasimov

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ee93139f446042b206e106281ce42a5
https://doi.org/10.1007/s00114-006-0150-x

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Analysis of late Palaeozoic glacial to postglacial sedimentary successions in South Africa by geochemical proxies – Response to climate evolution and sedimentary environment

Autor: Kay Scheffler, Dieter Buehmann, Lorenz Schwark

Publikováno v: Palaeogeography, Palaeoclimatology, Palaeoecology. 240:184-203

Records of incisive climate changes during the late Palaeozoic Era are best documented in sedimentary basins of South Africa. Glacial (Upper Carboniferous–Early Permian Dwyka Group and equivalents) and postglacial deposits (Early to Middle Permian

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::07ecce9855e7bb13b2f67a003bc25927
https://doi.org/10.1016/j.palaeo.2006.03.059

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Biomarker composition of higher plant macrofossils from Late Palaeozoic sediments

Autor: Wilhelm Püttmann, Stefan Auras, Kay Scheffler, Volker Wilde, Stephan Hoernes

Publikováno v: Palaeogeography, Palaeoclimatology, Palaeoecology. 240:305-317

The main objective of the present study was to clarify if the fernane derivatives 5-methyl-10(4-methylpentyl)-des-A-25-norferna-5,7,9-triene (MATH), 25-norferna-5,7,9-triene (MAPH), 24,25-dinorferna-1,3,5,7,9-pentaene (DAPH 1) and iso-25-norferna-1,3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b99522f1bd2a5fbed208128a14b3fe71
https://doi.org/10.1016/j.palaeo.2006.03.054

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Reliable Analysis of Residual Dirt Particles

Autor: Anja Schué, Kay Scheffler

Publikováno v: JOT-International Surface Technology. 4:56-57

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f57898f7e76c517a1afa3d3ae3dd6bc
https://doi.org/10.1365/s35724-011-0026-2

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Global changes during Carboniferous–Permian glaciation of Gondwana: Linking polar and equatorial climate evolution by geochemical proxies

Autor: Lorenz Schwark, Kay Scheffler, Stephan Hoernes

Publikováno v: Geology. 31:605

The most prevalent Phanerozoic glaciation occurred during the Carboniferous-Permian on the Southern Hemisphere Gondwana supercontinent. Sediments from the Pennsylvanian Dwyka Group deposited in the Karoo Basin of South Africa provide a complete recor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7d651379814df9161c1108ec7d2942f3
https://doi.org/10.1130/0091-7613(2003)031<0605:gcdcgo>2.0.co

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