МОДЕЛЮВАННЯ ТА ОЦІНКА ВПЛИВУ НАДВИСОКОЧАСТОТНОГО ВИПРОМІНЮВАННЯ НА БІОЛОГІЧНІ ТКАНИНИ
Journal Title: BULLETIN of Kyiv Polytechnic Institute. Series INSTRUMENT MAKING - Year 2018, Vol 56, Issue 56
Abstract
The influence of electromagnetic extremely high-frequency (EHF) millimeter-wave radiation on biological tissues was explored and its thermal effects were evaluated. An assessment of the EHF-radiation intensity of the Porog-3 apparatus in all operating modes has been performed. The differences in the influence of radiation depending on the type of biological tissue and environmental parameters are established. Several series of experiments have been conducted to assess the effect of EHF radiation taking into account age-related changes in the skin and sex distribution with changes in tissue temperature depending on the duration of the procedure. The exploration was conducted in five target groups, separated by age, sex and nature of biological tissue. The dependence of the temperature change of a biological object on the exposure time is determined. As part of the research, mathematical modeling of intensity changes depending on the frequency, temperature changes of biological tissue depending on the intensity was carried out, the nature of the processes of exposure to EHF-therapy was determined. A mathematical apparatus is proposed and justified, which allows to optimize the process of therapy by adjusting its parameters taking into account the influence of the environment and the type of biological tissue, which makes the treatment more effective, safe and focused on the patient's individual sensitivity to EHF radiation. A method for selecting the optimal parameters of EHF-therapy has been developed. Formulas are obtained for determining the dose and intensity of radiation, taking into account temperature gradients of the medium. The errors of dose and intensity of radiation were determined and analyzed
Authors and Affiliations
Daria Plaksa, Mykola Tereshchenko, Sergey Matvienko
Keywords
Related Articles
- EP ID EP568512
- DOI 10.20535/1970.56(2).2018.152484
- Views 135
- Downloads 0
ВИЗНАЧЕННЯ ГЛИБИНИ ПРОНИКНЕННЯ ФАРМАКОЛОГІЧНИХ ПРЕПАРАТІВ У БІОЛОГІЧНИЙ ОБ`ЄКТ ПРИ УЛЬТРАФОНОФОРЕЗІ
In the article are given the results of studying the effect of ultrasonic vibrations of varying intensity, frequency and waveform on the depth of penetration of pharmaceuticals over time into biological tissue. Establis...
РАЗРАБОТКА ТЕХНОЛОГИИ ОБРАЗОВАНИЯ САМООРГАНИЗУЮЩИХСЯ ЕСТЕСТВЕННО-ЗАЩИТНЫХ ПОКРЫТИЙ В МЕЖКОНТАКТНОМ ПРОСТРАНСТВЕ ПАР ТРЕНИЯ В ПРОЦЕССЕ РЕЗАНИЯ
As a result of scientific and experimental research by modeling the cutting process as a controlled thermodynamic system, the essence of self-organizing new submicrostructures on thin contact surface layers of the tool i...
МОДЕЛЮВАННЯ ТА ОЦІНКА ВПЛИВУ НАДВИСОКОЧАСТОТНОГО ВИПРОМІНЮВАННЯ НА БІОЛОГІЧНІ ТКАНИНИ
The influence of electromagnetic extremely high-frequency (EHF) millimeter-wave radiation on biological tissues was explored and its thermal effects were evaluated. An assessment of the EHF-radiation intensity of the Por...
АНАЛИТИЧЕСКИЙ РАСЧЕТ ГЛАДКОСТИ СОПРЯЖЕНИЯ ПОВЕРХНОСТЕЙ И ТРАЕКТОРИЙ ФОРМООБРАЗОВАНИЯ ДЛЯ ИХ ОБРАБОТКИ НА СТАНКАХ С ЧПУ
The purpose of this work is to improve the cam mechanisms qualities under operating conditions. For present purpose, the task of determining the condition of smooth conjugation of the screw and radius surfaces of the cam...
ПРИСТРІЙ ДЛЯ РЕЙТРЕЙСИНГОВОЇ АБЕРОМЕТРІЇ ОКА
In ophthalmology for the diagnosis with the purpose of further treatment of eye diseases worthwhile aberrometers are used. For objective research of the optical system of the eye, methods of simultaneous projection of th...