ISSN 0869-6632 (Online)
ISSN 2542-1905 (Print)


Science for Education

From theory of oscillations to nonlinear dynamics

The paper deals with the retrospective consideration of course lectures on theory of oscillations in Nizhny Novgorod university and its evolution during more then 70 years.

Outline of thesis general characteristics: rules, recommendations, samples

The presentment structure of general characteristics of dissertation and its abstract are discussed.

On the mechanism of «compressed»­state formation at relativistic electron beam in two­section drift tube

This paper is devoted to the three­dimensional numerical simulation of the «compressed» state of the relativistic electron beam in two­section vircator system with drift tubes with different diameters. We have discovered the mechanism of formation of the «compressed» state of the relativistic beam through the formation of two virtual cathode near the anode grid and between connected sections, which will eventually merged into one distributed in the drift space virtual cathode (compressed state of the beam).

About perception, numerical rating and protection of scientific results

The problems of perception, significance of numerical assessments of scientific publications quality, copyright protection are considered. Examples from the history of science are given. Ethical issues by using electronic scientific databases are named.

About perception, numerical rating and protection of scientific results

The problems of perception, significance of numerical assessments of scientific publications quality, copyright protection are considered. Examples from the history of science are given. Ethical issues by using electronic scientific databases are named.

Apparent paradoxes in hydraulics

The purpose of this article is to increase the interest of school students in General physics. For notice teacher it will help to illustrate Newton’s laws, Archimed’s law and Pascale’s law by simple home experiments.

Laboratory diagnostic system of toxicity of nanomaterials

  The paper describes the results of experimental work of students and post­graduate students of the Department of Biophysics of the FNP SSU and the laboratory of nanobio­technology IBPPM RAS to identify the potential danger of plasmon­resonance nanomaterials in biomedical research, namely the development of software and instrument complex spectrophotometric and microscopic measurements to estimate viability of microalgae Dunaliella salina and determine the toxicity of the components of incubation medium.

The study of multistability and external synchronization in nonautonomous system of two coupled van der pol oscillators with repulsive coupling

  In this paper we study the bifurcational mechanisms of synchronization and multistability formation in a system of two interacting van der Pol oscillators, one of which is under external harmonic forcing. We draw a two­parametric bifurcation diagram for phasereduced system and study its evolution in transition from symmetrical to asymmetrical repulsive interaction. Relying on the results of bifurcation analysis of non­reduced system we conclude that the synchronization scenarios found in the phase­reduced system correspond to the ones in the non­reduced system.

Technique and results of numerical test for hyperbolic nature of attractors for reduced models of distributed systems

A test of hyperbolic nature of chaotic attractors, based on an analysis of statistics distribution of angles between stable and unstable subspaces, is applied to reduced finite­dimensional models of distributed systems which are the modifications of the Swift–Hohenberg equation and Brusselator model, as well as to the problem of parametric excitation of standing waves by the modulated pump.

Dynamics of two field­coupled spin­transfer oscillators

The model of two field­coupled spin­transfer oscillators has been derived and studied. It has been shown that this model demonstrates phase synchronization in a wide bandwidth, quasiperiodic oscillations and chaos.

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