Abstract: was introduced the theoretical basis for mathematical modelling of biological systems with several competing populations. Mathematical model of biological environment with 3 competing species was build and analyzed.
Keywords: interaction of populations, “predator-prey” model, mathematical modelling.
Actual problems of modern science: Abstracts of VІІI International scientific-practical conference (Moscow - Astana - Kharkiv - Vienna, May 30, 2016)
Actual problems of modern science: Abstracts of VІІI International scientific-practical conference (Moscow - Astana - Kharkiv - Vienna, May 30, 2016)
Actual problems of modern science: Abstracts of VІІI International scientific-practical conference (Moscow - Astana - Kharkiv - Vienna, May 30, 2016)
В работе вычислено некоторые параметрические критерии массы GW150914 с применением эволюционного показателя. На основе результатов вычисление, предсказано предполагаемые ответы на нерешенных проблем физики и отвечаем на эти вопросы, используя данных гравитационных волн и уравнений эволюционного показателя.
Summary: In article it is shown that fireballs have the electromagnetic nature and are caused by wave space resonances.
Keywords: kosmo-terrestrial communications; space resonant meta-cycles.
Actual problems of modern science: Abstracts of VI International scientific-practical conference (St.Petersburg - Astana - Kyiv - Vienna, April 28, 2016)
Summary: Heterostructure p-GaTe–n-InSe was prepared by the method of mechanical contact of GaTe oxidized plate with van der Waals surface of InSe. Topology of surfaces of GaTe and InSe layered crystals were studied by using AFM-images. It is shown that there was formed thin oxide dielectric layer of Ga2O3 on the heterojunction p-GaTe–n-InSe.The direct branch ofthe current-voltage characteristics of the heterostructure show high diode properties. Sensitivity spectral area of p‑GaTe – n-InSe heterostructure was identified and the characteristics of its energy band diagram were shown.
Key words: indium selenide, layered crystals, heterojunction, AFM-images spectral characteristics.
Summary: There is investigated periodical boundary value problem for the system of partial differential equation. Obtain the sufficient conditions of existence and uniqueness of the multiperiodical solution considered the problem.
Keywords: boundary value problem, solvability, multiperiodical, Friedrichs, hyperbolic system of the equations.
Summary: This article discusses the use of MathCAD software to solve differential equations of the first order.
Key words: mathematics еeditor, differential equations, Lagrange method.
Summary: we consider the different types of software that allow to make calculations for engineering and mathematical problems. Their strengths and weaknesses explored.
Key words: mathematics editor, finite elements method, engineering modeling.
Summary: By consideration of a number of outstanding examples it is shown that wave space resonances are the prime cause of solar and geomagnetic storms and power accidents.
Keywords: space resonant meta-cycles; solar flashes; geomagnetic storms; power accidents.
Summary: The solution of the problem of stresses distribution in shells made of composite material with opening is given. The finite elements method was used. The influence of transversal shear on the stress concentration in the cylindrical transversely isotropic shell with circular opening was investigated.
Key words: stress, shell with circular opening, finite elements method.
Summary: Two methods of determining the localization length of electromagnetic waves in random discrete media is considered.
Key words: localization, random discrete medium, scattering.
Summary: In article it is shown that solar activity has not the monocyclic, but bicyclic nature.
Keywords: solar activity, kosmo-terrestrial communications, electromagnetic resonant concept.
Summary: The methodology of calculation of minima of solar activity is presented and the forecast of these phenomena for the all the III millennium is given.
Keywords: minima of solar activity, kosmo-terrestrial communications, electromagnetic resonant concept.
