Vladimir Chumakov

Independent Scholar

В работе приведены результаты анализа экспериментальных исследований воздействиянеионизирующегоэлектромагнитногоизлучения,описаны схемы и приведеныпараметры экспериментальных установок и методики экспериментов. Проанализированы результаты биологического действия ионизирующего электромагнитного излучения малой интенсивности большой длительности и во...

In this paper the simulation results of hypersonic accelerator with pulse dynamic biasing system (PDBS) which provide external magnetic field compensation are given. The nearest analog of PDBS shown is Halbach-Array. Using magnetic compensation provides is shown to increase the magnetic field in inter-rail gap of the railgun up to 270% and to incre...

GENERATION OF METAL NANOPARTICLES BASED ON THE EFFECT OF ELECTRICAL EXPLODING WIRES Demiokhin V.B., Chumakov V.I., Stolarchuk A.V., Ostrizhnoi M.A., Kharchenko O.I., Alexandrova D.I. Pharmaceutical company “Zdorov’je”, “Experimental Plant “SSCR” ltd. 8, Vorob’jova str., Kharkov, 61057, Ukraine Ph.: +38-(095)-10-15-662, e-mail: v.i.ch@mail.ru Abs...

Р Е Ф Е Р А Т (in Ukraine) 1. Об’єкт винаходу. Спосіб руйнування кумулятивного струменю. 2. Галузь застосування. Винахід відноситься до фізики плазми, а саме до руйнування кумулятивного струменю під дією власного магнітного поля і електричного заряду струму, що протікає в струмені, і може бути використаний для захисту бронетехніки від кумулятивних...

The main content of the active magnetic introscopy (AMI) method to analyze the structure and dynamics of the Earth's crust is considered. The possibility of using explosive magnetic generators (EMG) as active sources of external magnetic field is proved. The block diagram of the method and the evaluation of the magnetic field, which provides the ma...

The results of the design and simulation of the railgun with pulsed-dynamic biasing of the muzzle (PDB). Principles of operation of the railgun system with PDB, simulation carried out computer simulations were studied. Based on the results of simulation have been proposed three basic variants of the structural performance of the railgun system with...

The examples of using nonlinear transformations are considered when one has to do with of selecting a signal on the background of noise interference. A possibility to increase the initial value of the signal/noise ratio under the stochastic resonance is shown.

Actuality of problem of generation and radiation of ultra-wideband (UWB) signal makes experimenting with new methods of excitation of the radiating systems. For forming of radiations of high intensity the high-currents accelerating of electrons is used lately quite often. Theoretical and experimental researches show possibility of generation of imp...

The present-day ecological situation impacted by natural and man-made electromagnetic radiation (EMR) sources and their characteristics is outlined. The medico-biological, hygienic and ecological aspects of e.m. radiation effects both upon human beings and the ecosystem as a whole are discussed. The results of experimental studies into the EMR effe...

Theoretical and experimental studies indicate the possibility of generating pulses with a relatively wide range, due to excitation of high-current electron beam antennas (EBA). Experimentally investigated isolated rod and helical antennas. The possibility of UWB radiation with high intensity of the far field. The results of modeling a conical spira...

The method of electroencephalogram (EEG) analysis with the support of the Hilbert phase-frequency analysis is under consideration.

Possibility of application of stochastic resonance (SR) method for short realizations of the casual process, which is the additive sum of a harmonious signal and normal noise, is considered. Results of calculation of the signal/noise relation at the output of the nonlinear device with SR, depending on frequency of a harmonious signal, are resulted...

Results of investigation of characteristics of the pulse power optical emitter based on magnetoplasmatic com-pressor are given. Dependence of an energy flux density of radiation on the energy put in the discharge, in approach a Planck radiation law is shown.

Abstract -Presented in this paper are results of investigations regarding the new type of magnetocumulative generators with magnetic flux parallelizing in multiliner systems. These are integrated explosive magnetic generators which can be used as power supply for impulse generator of VHF and UWB radiation. Some types of generators are discussed.

The results of influence of informational technologies on the user's organism are presented in this paper. PC is the source of different emanations and electromagnetic fields, providing negative influences; changing the structure of cells, tissues and processes passing in them. It is established, that working with PC may provoke more than 30 harmfu...

In this paper, the analysis of electric circuit of the electrode system used at EEG is presented. Registration of cerebral cortex signals, or EEG, allows to carry out monitoring of brain activity and is the best diagnostic method for revealing pathological conditions of a brain, for example, epilepsy. Frequency dependence of transfer function of el...

Presentation of pulse characteristics of radiating linear antenna at frequency characteristics aproximations by the upper frequencies filters is considered. Calculation results of pulse characteristics for the antenna with different values of wide-band factor are given.

A device for generating intense shock waves at low energies of an electric discharge in a gas is suggested and tested.

Without Abstract

Summary form only given. An algorithm of electrostatic field analysis formed by complex configuration electrode system is considered. The algorithm is based on Fourier transformation of electrode profile. The function of electrode profile is smoothed out with help of a low-pass filter to produce equipotential line. In dependence of distance between...

Summary form only given. The research examines the feasibility of gas-dynamic laser incorporating new technical solutions. It is suggested to use separation of detonation products and air for drop-and-liquid fuel torch jet detonation in the process of their development in air environment, thus obtaining population inversion of gas molecule vibratio...

The characteristics of a spark atmosphere discharge initiated at an interelectrode voltage U=500 kV and a discharge initiated with a thermally bursting wire are studied.

An efficient source of pulsed electromagnetic radiation in the range 0.3–10.2 m is described. The parameters of the device and the results from studies of the radiation characteristics are presented.

Parametric equations simulating the current in the load of explosive magnetic generator are considered. Results analysis of 1-st order circuit and 2-nd order circuit with series capacitance are discussed.

Experimental studies have been performed of the virtode, a transit-type high-power microwave pulse oscillator with a supercritical current of a relativistic electron beam (REB), and controllable frequency and output amplitude. As a result of mode selection of charge density oscillations in the electron beam, the virtode output frequency has appeare...

An autogenerator using a supercritical REB current with the amplitude and phase of the high-frequency signal of the external waveguide controlled by feedback (i.e., a virtode) has been studied experimentally. This device has been used to demonstrate the possibility of controlling the parameters of microwave radiation from a generator using a untapp...

The process of formation of shock waves arising at a spark discharge is considered. According to analysis of ex-perimental statistics the results of the various authors about dynamics of development of the spark channel are ex-posed to a doubt. The definition of a concept of time of formation of a shock wave is offered and its quantitative evaluati...