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Boeskorov G.G.,Russian Academy of Sciences | Lazarev P.A.,Institute of Applied Ecology of the North | Sher A.V.,RAS A.N. Severtsov Institute of Ecology and Evolution | Davydov S.P.,Russian Academy of Sciences | And 6 more authors.
Quaternary Science Reviews | Year: 2011

A nearly complete frozen mummy of a woolly rhinoceros (Coelodonta antiquitatis Blum., 1799) was discovered in a gold mine on the lower reaches of the Kolyma River, north-eastern Siberia. This is the first find of the whole body of woolly rhino in permafrost. A large part of the mummified body was preserved, including the left part of the body, covered by skin, including skin of the head and ear, fore and hind legs. The skull with 2 horns and the lower jaw were also preserved. Most of the internal organs were lost, except the intestines, stomach, and their contents. A rib fragment from this individual was dated by AMS-radiocarbon method to 39,140 ± 390 years BP (OxA-18755). Spore and pollen analyses of the stomach contents indicate that grasses and sagebrushes formed the main part of the diet of C. antiquitatis in this region of Arctic Siberia. © 2011 Elsevier Ltd.

Vinokurov G.G.,Russian Academy of Sciences | Popov O.N.,Ammosov Yakutsk State University
Russian Engineering Research | Year: 2010

On the basis of a probabilistic-geometric matrix model of the powder macrostructure, a statistical approach is developed for describing the frictional-surface microgeometry of powder coatings obtained by high-energy methods, in frictional wear. This approach permits simulation of the wear of powder coatings and materials. The calculation results are compared with experimental data. © 2010 Allerton Press, Inc.

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