Výsledky vyhledávání - "A. S. Ovsepyan"

Influence of bacterial melanine on morphological indicators of seeds germination of high-decorative species of flora of Belarus

Autor: A. V. Bashilov, H. G. Shutava, A. S. Ovsepyan, S. V. Avetisyan

Publikováno v: Faktori eksperimental'noi evolucii organizmiv. 27:214-220

Aim. The purpose of the work is to study the effect of a biological product based on the melaninogenic strain of Bacillus thuringiensis on germination and morphological parameters of highly decorative species of the flora of Belarus, promising for la

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fcd8125db0f6e999c03a497bbd09c911
https://doi.org/10.7124/feeo.v27.1329

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The Importance of Foraminifera of the Family Cassidulinidae for the Late Quaternary Paleoenvironmental Reconstructions Based on Sediment Cores from the Laptev Sea

Autor: Ekaterina Taldenkova, Ya. S. Ovsepyan, N. O. Averkina

Publikováno v: Paleontological Journal. 53:894-898

Three most common Arctic foraminiferal species of the family Cassidulinidae from the Laptev Sea sediment cores were analyzed for paleoenvironmental reconstructions. This paleontological study is focused on morphological characteristics of apertural e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58e9898876aeeaf27bfe4cc6b47b1b68
https://doi.org/10.1134/s0031030119090119

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Distribution Patterns and Morphology of Islandiella norcrossi (Cushman) in the Upper Quaternary Deposits of the Laptev Sea

Autor: Ekaterina Taldenkova, Ya. S. Ovsepyan

Publikováno v: Paleontological Journal. 53:10-19

The ecology and taxonomy of Islandiella norcrossi (Cushman, 1933), a typical representative of the Arctic calcareous benthic foraminifers, are analyzed based on microfossils from the Late Pleistocene-Holocene deposits of the Laptev Sea. This species

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0547712d47a2bbd1604292a28c0155c3
https://doi.org/10.1134/s0031030119010064

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Late Pleistocene-Holocene events on the continental slope of the Laptev Sea: Evidence from benthic and planktonic foraminiferal assemblages

Autor: Henning A. Bauch, Evgeniya Kandiano, Ekaterina Taldenkova, Ya. S. Ovsepyan

Publikováno v: Stratigraphy and Geological Correlation. 23:645-660

This work is dedicated to the study of benthic and planktonic foraminifers and is a contribution to the multidisciplinary investigations of Core PS51/154-11 from the Laptev Sea. The paleoecological analysis of foraminiferal assemblages makes it possi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e7564314189ea38807554991bcc22338
https://doi.org/10.1134/s0869593815060076

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Modification of the method of sequential simplex planning and its application to the solution of optimization problems

Autor: V. S. Ovsepyan, A. S. Dertsyan

Publikováno v: Izvestiya MGTU MAMI. 7:40-48

A modification of the algorithm Nealder-Mida is proposed when the point, which determines the direction of reflection the “worst” node, is chosen based on the values of minimazed functions in the rest of the vertices of a simplex. There was inves

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2122b5274ae2fb3eccee16ef4473dde3
https://doi.org/10.17816/2074-0530-67765

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Reconstruction of the postglacial environments in the southwestern Barents Sea based on foraminiferal assemblages

Autor: Ya. S. Ovsepyan, E. A. Ovsepyan, N. O. Chistyakova, Elena Ivanova, Bjørg Risebrobakken

Publikováno v: Oceanology. 50:573-581

Environmental changes in the surface and bottom water layers of the Ingoydjupet Basin and the his� tory of the Atlantic Water inflow to the southwestern Barents Sea during the last 16 ka are reconstructed based on planktic and benthic foraminiferal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::abd3273db14de292c09bee711804b601
https://doi.org/10.1134/s0001437010040132

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Energy distribution on the focal plane of a parabolic cylindrical concentrator with angular defocusings

Autor: Z. S. Ovsepyan, G. S. Aloyan, A. V. Vardanyan, K. A. Pogosyan

Publikováno v: Applied Solar Energy. 43:30-33

The concentrating capability of an ideal parabolic cylindrical reflector that is exposed to collimated radiation flux with longitudinal and transverse angular defocusings is examined. The energy distribution on the focal plane of the concentrator is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dedb87583e1ed18b41fdad02696a47e8
https://doi.org/10.3103/s0003701x07010100

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1,5-Hydride shift in products of Stevens 3,2-rearrangement of methyl(alkyl)(alkoxycarbonylmethyl)-(3-phenyl-2- propynyl)ammonium bromides

Autor: S. T. Kocharyan, V. S. Ovsepyan, A. V. Babakhanyan, M. O. Manukyan

Publikováno v: Russian Journal of General Chemistry. 74:1376-1382

The products of the Stevens 3,2-rearrangement of ammonium salts containing methyl and other (ethyl, propyl, butyl) alkyl groups along with 3-phenylprop-2-ynyl, under the reaction conditions undergo, roughly by half, intramolecular hydride shift with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a1a927e6f3f64334e16abfa64cc0f25
https://doi.org/10.1007/s11176-005-0014-7

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