In the experiments (605 animals) and clinically (145 patients with malignant neoplasms) the authors have studied the possibility to use superhigh-frequency electromagnetic hyperthermia (42 degrees), associated with ionizing radiation in the complex treatment of tumors. The superhigh-frequency electromagnetic hyperthermia is really one of the ways to enhance the radiosensitivity of a neoplastic tissue. Ionizing radiation and SHF-hyperthermia used simultaneously provide for the directed and prompt disactivation of tumor cells.
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[Monitoring of brightness temperature fluctuation of water in SHF range].
Patol Fiziol Eksp Ter
December 2017
The purpose of the research consisted in detection of fluctuation of brightness temperature (TSHF) of water in the area of the temperature Т = 42°С (that is critical for human) during its evaporation by SHF radiometry. Methods: Monitoring of the changes in brightness temperature of water in superhigh frequency (SHF) range (3.8-4.
View Article and Find Full Text PDFThe Purpose: The purpose of this research consisted in monitoring of brightness temperature of the suspension of follicular thyroid carcinoma cells during the necrosis of these cells in superhigh frequency (SHF) range.
Methods: The monitoring of the change in the ratio between brightness temperatures TSHF and TIR values during the necrosis of these cells. The object of study was follicular thyroid carcinoma cells suspension prepared with use of Versene solution and 0.
Unlabelled: The purpose of the research consisted in the measurement of nonequilibrium radiation in superhigh frequency (SHF) range from aqueous solution of albumin upon its mechanical stimulation.
Methods: the monitoring of change in the ratio between brightness temperatures TSHF and TIR values after the mechanical stimulation of aqueous solution of albumin in the measuring cell at 35-39°С. The measurements of brightness temperatures were carried out with use of radiothermometer.
Mechanical stimulation of aqueous protein solution was found to be accompanied by electromagnetic radiation in the superhigh frequency range. This radiation was observed at solution temperatures near the phase transitions of water. This effect may occur in various bioanalytical systems, associated with injection of aqueous solutions in these systems, and may have impact on the results of bioalytical measurements.
View Article and Find Full Text PDFSuper-high-frequency two-port AlN contour-mode resonators for RF applications.
IEEE Trans Ultrason Ferroelectr Freq Control
January 2010
Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, USA.
This paper reports on the design and experimental verification of a new class of thin-film (250 nm) superhigh- frequency laterally-vibrating piezoelectric microelectromechanical (MEMS) resonators suitable for the fabrication of narrow-band MEMS filters operating at frequencies above 3 GHz. The device dimensions have been opportunely scaled both in the lateral and vertical dimensions to excite a contour-extensional mode of vibration in nanofeatures of an ultra-thin (250 nm) AlN film. In this first demonstration, 2-port resonators vibrating up to 4.
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