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


Наука - образованию

«Pre-defense» of thesis: formal requirements and traditions

Opinions of secretaries of dissertation councils on Physics and Mathematics about holding scientific seminar presenting dissertation to defense are given.

Outline of thesis general characteristics: rules, recommendations, samples

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

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.

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.

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.

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).

Research of ultra­wide range s­band chaos generator based on twt

The paper presents the results of the experimental research ultra­wide range s­band chaos generator based on TWT. The effect of absolute suppression mode chaotic signal by external harmonic signal has been investigated.

Numerical calculation of the electrodynamic characteristics of the diode oscillator with photonic crystal resonator

Design of a diode oscillator with a field­emission cathode placed in a photonic crystal (PC) resonator is described. Results of numerical calculation of basic electrodynamic parameters of the PC resonator are presented. The 3D electrodynamic simulation by using the modern software package HFSS shows that varying the design of the energy output allows control of the loaded Q­factor in a wide range. Selection of the optimal value of the loaded Q­factor provides rather high output power and efficiency for reasonable values of the field­emission cathode current density.

Features of formation of band gaps in coupled structures based on magnonic crystals

There are introduced ferromagnetic periodic structures consist of two coupled magnonic crystals and related magnonic and crystal film, separated by a dielectric layer. The dispersion equation made for magnetostatic waves, that propagate in such structures and identified main features of formation band gaps and a comparison with a periodic structure of one magnonic crystal was made.

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