http://dspace.nbuv.gov.ua:80/handle/123456789/1676 Sun, 12 Apr 2026 05:00:27 GMT 2026-04-12T05:00:27Z http://dspace.nbuv.gov.ua:80/bitstream/id/374002/ http://dspace.nbuv.gov.ua:80/handle/123456789/1676 http://dspace.nbuv.gov.ua:80/handle/123456789/1783 Щиповки комплекса Cobitis elongatoides-taenia (Cypriniformes, Cobitidae) Северо-Западного Причерноморья как модель филогеографических построений Межжерин, С.В.; Павленко, Л.И.; Роженко, Н.В.; Верлатый, Д.Б. Biochemical genetic investigation and cytometric analysis from diploid-polyploid spined loaches associations of lower reaches of the rivers of Danube, Dniester, and Dnieper found substantial distinctions of their genetic structure and, consequently, certain historical isolations and, in case with Dniester, the uniqueness of the population consisting exceptionally of individuals of hybrid polyploid biotypes. Thus, in all basins, polyploid specimens only of the Danube origin are found. Diploid species of Danube (С. elongatoides, C. ''tanaitica'') have not contained introgressive genes and have autochthonous origin, while the diploid form predominating in lower Dnieper basin has genes not less than three allospecies of C. (superspecies) taenia with predominance of genes of C. (taenia) taenia and, consequently, has adventure nature de bene esse. Mon, 01 Jan 2007 00:00:00 GMT http://dspace.nbuv.gov.ua:80/handle/123456789/1783 2007-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/1782 Релаксаційна модель механічної поведінки пісковика при квазістатичному навантаженні Вахненко, В.О.; Вахненко, О.О.; Даниленко, В.А. We suggested, based on the relaxation approach, a phenomenological model to describe the stress-strain properties of the Berea sandstone under slow loading. The model allows one to recover qualitatively, as well as in some cases quantitatively, the main experimental observations, in particular, the hysteretic loops in stress-strain curves. Modeling the stress-strain dependences reproduces, in essence, the sandstone state equation. Mon, 01 Jan 2007 00:00:00 GMT http://dspace.nbuv.gov.ua:80/handle/123456789/1782 2007-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/1781 Комплектний синхронний електропривід з програмним керуванням Півняк, Г.Г.; Кириченко, В.І.; Кириченко, В.В.; Боровик, Р.О. Algorithms of the program control over the feed source of an engine are proposed. The feed source includes gages and two regulators, and the microprocessor control system has two channels for the realization of the algorithms and the compensation of the instability of parameters of the electric drive, respectively. Mon, 01 Jan 2007 00:00:00 GMT http://dspace.nbuv.gov.ua:80/handle/123456789/1781 2007-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/1778 Приближенный анализ одной пространственной, конвективной задачи теплопроводности Шевченко, А.И.; Миненко, А.С. The problem of three-dimensional stationary convection in the liquid phase is investigated. A method of studying this problem by means of the expansion in a small Reynolds number is proposed. In this case, the zero and first expansion terms are defined by the Ritz method. A formula of the dependence of the free-boundary equation on the Reynolds number is obtained. Mon, 01 Jan 2007 00:00:00 GMT http://dspace.nbuv.gov.ua:80/handle/123456789/1778 2007-01-01T00:00:00Z