scholarly journals Effect of heating of frozen colostrum in two-resonator installation

2021 ◽  
Vol 935 (1) ◽  
pp. 012026
Author(s):  
G Novikova ◽  
I Ershova ◽  
M Prosviryakova ◽  
O Mikhailova ◽  
V Storchevoy ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Penetration Depth ◽  
High Frequency ◽  
Electromagnetic Waves ◽  
Raw Material ◽  
Dielectric Parameters ◽  
Field Exposure ◽  
Ultra High Frequency ◽  
Significant Difference ◽  
High Frequency Electromagnetic Field

Abstract The study is aimed at the effect substantiation of voluminous heating of the cattle frozen colostrum in the two-resonator installation. The methodology is based on the theory of the electromagnetic field, the laws of thermodynamics and the results of physical modeling. The colostrum dielectric parameters were analyzed in the temperature range from -12 °C to +40 °C. The theoretical studies were carried out for changes finding out in the absorption coefficient of the electromagnetic field and the penetration depth of the electromagnetic waves 12.24 cm long during defrosting/heating of the cow colostrum with the fat content of 6.4%. It is found that the penetration depth of the electromagnetic field into the frozen raw material at negative temperatures range (0.2-1.0 cm) is less than that at the colostrum positive temperatures (1.0-2.17 cm). With such significant difference in the dielectric characteristics of the frozen and thawed colostrum and in their penetration depths of the ultra high frequency electromagnetic field, the rate of their heating is considerably different. The developed continuous-flow ultra high frequency electromagnetic generator contains two voluminous resonators. They provide the colostrum being in different physical states with different doses of the ultra high frequency electromagnetic field exposure.

Ultra high frequency-electromagnetic field irradiation during pregnancy leads to an increase in erythrocytes micronuclei incidence in rat offspring

Life Sciences ◽  
2006 ◽  
Vol 80 (1) ◽  
pp. 43-50 ◽  
Author(s):  
Amâncio Romanelli Ferreira ◽  
Tanise Knakievicz ◽  
Matheus Augusto de Bittencourt Pasquali ◽  
Daniel Pens Gelain ◽  
Felipe Dal-Pizzol ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
High Frequency ◽  
Ultra High Frequency ◽  
Rat Offspring ◽  
High Frequency Electromagnetic Field

scholarly journals Mathematical model of colostrum defrosting in super-high-frequency generator equipped

2021 ◽  
Vol 935 (1) ◽  
pp. 012027
Author(s):  
I Ershova ◽  
M Prosviryakova ◽  
O Mikhailova ◽  
G Novikova ◽  
G Samarin ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Field Strength ◽  
Electric Field ◽  
Electric Field Strength ◽  
High Frequency ◽  
Electromagnetic Waves ◽  
Raw Material ◽  
Operating Modes ◽  
High Frequency Electromagnetic Field ◽  
Super High Frequency

Abstract The paper is devoted to development and parameters studying of two-resonator super-high-frequency (SHF) generator based on continuous flow principle of action. It is equipped with two quasi-stationary toroidal resonators; so it allows to separate such processes of cattle colostral milk treatnent as defrosting and heating and thus to ensure both the electromagnetic safety and the high electric field strength. In order to improve efficiency of the cattle colostrum defrosting/heating performed by its exposure to the super-high frequency electromagnetic field, the methodology was developed for the SHF generator designing. It includes, firstly, development & studying of mathematical models based on due consideration of the phase transitions and, secondly, the structural designing of the SHF generator working chamber with examination of its effective operating modes. The mathematical model is proposed of the electromagnetic waves interaction with the raw material (colostral milk) being in different physical states. With aid of the electric field strength control (by the generators power changing) and the gap adjustment in the capacitor part of the resonators (by smooth movement of the common perforated base), it is possible to achieve the equipment capacity up to 170… 200 L/h. The energy expenses are 0.025 (kWh)/kg.

Brain functions after high-frequency electromagnetic field exposure: Indirect SAR measurement

2011 ◽  
Vol 500 ◽  
pp. e47
Author(s):  
Jan Barcal ◽  
Lukas Visek ◽  
Frantisek Vozeh ◽  
Jan Vrba ◽  
Vaclav Zalud
Keyword(s):  
Electromagnetic Field ◽  
High Frequency ◽  
Field Exposure ◽  
Brain Functions ◽  
High Frequency Electromagnetic Field

Low-amplitude, high-frequency electromagnetic field exposure causes delayed and reduced growth in Rosa hybrida

2016 ◽  
Vol 190 ◽  
pp. 44-53 ◽  
Author(s):  
Alexandre Grémiaux ◽  
Sébastien Girard ◽  
Vincent Guérin ◽  
Jérémy Lothier ◽  
František Baluška ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
High Frequency ◽  
Rosa Hybrida ◽  
Field Exposure ◽  
High Frequency Electromagnetic Field ◽  
Low Amplitude

scholarly journals EFFECT OF HIGH-FREQUENCY ELECTROMAGNETIC FIELD ON THE MUTAROTATION OF AQUEOUS SOLU-TIONS OF GLUCOSE AND FRUCTOSE

2019 ◽  
pp. 235-240
Author(s):  
Boris Pavlovich Shipunov ◽  
Andrey Valerievich Ryabykh
Keyword(s):  
Electromagnetic Field ◽  
High Frequency ◽  
Reaction Rate ◽  
Glucose Solution ◽  
Specific Rotation ◽  
Hydrogen Ions ◽  
Field Exposure ◽  
Aqueous Solu Tions ◽  
High Frequency Electromagnetic Field ◽  
Effective Constants

The indirect influence of the high-frequency electromagnetic field of the 30–200 MHz low power range on the reaction rate of the mutation of D-glucose solutions and on the equilibrium in D-fructose and D-glucose solutions was studied. Solutions were prepared using both deionized water and water exposed to a high-frequency electromagnetic field. Control of the process of mutarotation was carried out polarimetrically. To assess the effectiveness of field exposure, the effective constants of the reaction rate of mutarotation were calculated. It has been established that the rate of mutarotation of D-glucose solutions non-linearly decreases with increasing frequency of the electromagnetic field. The effect of pretreatment of the solvent by an electromagnetic field on the equilibrium in solutions of fructose and glucose, which have been subjected to field exposure, has been studied. The observation was carried out for 30 days. It was found that the equilibrium specific rotation in the fructose solution as a result of the influence of the electromagnetic field shifts towards negative values, and in the case of glucose solution it does not change. An explanation of the results obtained is proposed, which is based on the assumption of a change in the structural organization of the solvent - water as a result of the high-frequency electromagnetic field, which can significantly change the hydration interactions of the reaction participants: carbohydrates and hydrogen ions.

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