Перегляд за автором "Bondarenko, I."

Зараз показано 1 - 2 з 2
  • Зображення мініатюри
    Публікація
    On the excitation of local electric current in the biologycal environment
    (Innovative technologies and scientific solutions for industries, 2021) Bondarenko, I.; Avrunin, O. G.
    The subject of the study in the article is to study the method of excitation of human body tissues using an electric current. The purpose of the work is to develop a method for exciting local current in a human body affecting the microcirculation of blood and excitability of local areas of muscle tissue during the treatment process. The article solves the following tasks: the creation of a model pattern of tissue, the rationale for the generation of electric current inside the sample, the development of the design of the current generation system and measuring the electrical response of the model sample of the tissue on the occurrence of electric current, determining the size and spatial current distribution in the model sample of the tissue, comparison the obtained current values with known and admissible in medical practice its values, determination of the advantages of the proposed method of excitation of current compared to the traditional used in medicine.
  • Зображення мініатюри
    Публікація
    On the Theory of a Pulse Microwave-Pumped Laser
    (2019) Semenets, V.; Kopot, M.; Gritsunov, A.; Bondarenko, I.
    A new construction of the microwave-pumped laser based on the light-pumping cell that uses radiation of sulfur vapor exposed to electromagnetic waves of the microwave band is described. Advantages of this design are the simple structure, high efficiency of the optical pumping cell, the possibility of cooling the pumping element, and easiness of modifying the emission spectrum of the optical pumping by changing the chemical composition of admixtures in the sulfur light-emitting cell. A mathematical tool for the simulation of the short-pulse operation of the microwave-pumped laser is proposed basing on the generalized wave equation solving for a regular transmission line with essentially nonlinear dispersion characteristic and substantial dissipation. Possible techniques for the numerical solving the generalized wave equation are discussed.