Логотип репозиторію
  • English
  • Українська
  • Увійти
    Новий користувач? Зареєструйтесь. Забули пароль?
Логотип репозиторію
  • Фонди та зібрання
  • Пошук за критеріями
  • English
  • Українська
  • Увійти
    Новий користувач? Зареєструйтесь. Забули пароль?
  1. Головна
  2. Переглянути за автором

Перегляд за Автор "Peregudov, S. М."

Зараз показуємо 1 - 2 з 2
Результатів на сторінці
Налаштування сортування
  • Вантажиться...
    Ескіз
    ДокументВідкритий доступ
    Electromagnetic Compatibility of Implantable Biomaterials for Reconstructive and Restorative Surgery of Facial Bones
    (КПІ ім. Ігоря Сікорського, 2023) Yanenko, О. P.; Peregudov, S. М.; Shevchenko, К. L.; Malanchuk, V. O.; Shvydchenko, V. S.; Golovchanska, О. D.
    The critically important part for reconstructive and restorative surgical interventions in facial bones results is the interface of implant-tissue surfaces. The importance of taking into account the processes occurring at the border of the distribution of the implant and living tissue is due to many factors. Among them are well-known ones, such as biological compatibility, consistency of physicochemical parameters, etc. But, at the same time, the issues of electromagnetic interaction between implant materials and biological tissues remain unresolved. So, it’s actual to investigate the interaction of implanted materials and tissues they are in contact. The authors considered the sources of formation of low-intensity microwave signals generated by the implant and living tissue. In this article, the authors demonstrate that microwave electromagnetic radiation is an important indicator and a new criterion for the physical compatibility of dielectric implantation biomaterials. It is proposed to use the term “electromagnetic compatibility” for the possibility of evaluating implant materials. This makes it possible to quantify the materials that come into contact with the human body during implantation. It should be noted that it is extremely difficult to measure the microwave radiation of the implant and biological tissue with existing technical means. This is due to the extremely low power of the emitted signals. The authors created a radiometric system with a sensitivity of 10−14 W. Using a highly sensitive radiometric system, a study of the radiation capacity of a number of implantable biomaterials was conducted. The possibility of forming positive and negative flows of microwave radiation, which can occur between adjacent tissues and implants, is shown. Violations of electromagnetic compatibility and, accordingly, the energy state of the surrounding biotissues, can qualitatively and quantitatively affect the reparative processes in the area of interventions, prolong the recovery period of adjacent tissues. So, it must be taken into account when choosing dielectric implant biomaterials.
  • Вантажиться...
    Ескіз
    ДокументВідкритий доступ
    Features of Low-Intensity Energy Balance in the Process of Physiotherapeutic Application of Mixtures of Natural Materials
    (КПІ ім. Ігоря Сікорського, 2021) Yanenko, О. P.; Peregudov, S. М.; Shevchenko, К. L.; Golovchanska, О. D.
    The authors investigated the features of energy balance that provide the process of using natural materials in physiotherapeutic thermal procedures. Substances such as ozokerite, paraffin, naphthalene, muds and their combinations are widely used in physiotherapy, so it is important not only to know the parameters of the heat exchange, but also the distribution of other types of energy that can affect the effectiveness of treatment. The authors theoretically substantiated and experimentally proved that microwave component is presented in the radiation spectrum of the ozokerite applicator. The level of radiation in the millimeter range of the applicator with a size of 10×10 cm is compared with the level of low-intensity signals of technical devices for millimeter therapy. The dynamic change of the radiation level of the microwave component during the cooling of the applicator from the maximum temperature of 50∘С to the temperature of the human body surface was investigated. It was revealed that the sign of the radiation of the millimeter component in relation to the human body changes. This results in the formation of positive and negative low-intensity flows of microwave radiation. The frequency ranges of these flows and their level were investigated. It has been found that changing the percentage of paraffin in ozokerite can affect the level and range of negative microwave flows. The results of previous studies by the authors, which substantiate the positive effect of negative flows, including ozokerite-paraffin therapy, in inflammatory processes with ”excess energy” and other diseases, are adduced. The microwave electromagnetic radiation studied by the authors is a concomitant factor during the relevant physiotherapeutic procedures, in particular heat treatment. However, this factor can significantly affect the functional state of the human body, so it must be taken into account during physiotherapy procedures.

DSpace software copyright © 2002-2025 LYRASIS

  • Налаштування куків
  • Зворотній зв'язок