An experimental study of a 60-GHz-band wave absorber using epoxy-urethane rubber mixed with carbon particles

2000 ◽  
Vol 84 (4) ◽  
pp. 32-38
Keyword(s):  
Experimental Study ◽  
60 Ghz ◽  
Carbon Particles

scholarly journals Сверхширокополосный генератор хаотических колебаний микроволнового диапазона с дополнительным нелинейным контуром

2019 ◽  
Vol 45 (23) ◽  
pp. 51
Author(s):  
Н.А. Максимов
Keyword(s):  
Experimental Study ◽  
Active Element ◽  
Ultra Wideband ◽  
60 Ghz ◽  
Chaotic Oscillations ◽  
Frequency Range ◽  
Nonlinear Circuit ◽  
Lumped Element

A possibility of generating ultra-wideband chaotic oscillations in the frequency range up to 60 GHz using a bipolar SiGe heterotransistor is shown. The upper frequency boundary is determined by the cut-off frequency of the active element of the generator. Such a possibility is provided by means of adding a nonlinear circuit into the oscillator layout, in which chaotic oscillations can develop up to the specified frequency. The results of an experimental study of a lumped-element version of the oscillator are presented.

Effect of Ringer-Lactate and isotonic saline solutions on mucociliary clearance of tracheal epithelium: an experimental study in rats

2002 ◽  
Vol 116 (7) ◽  
pp. 536-538 ◽  
Author(s):  
Murat Ünal ◽  
Hakki Oktay Seymen
Keyword(s):  
Experimental Study ◽  
Mucociliary Clearance ◽  
Saline Solution ◽  
Isotonic Saline ◽  
Tracheal Epithelium ◽  
Ringer Lactate ◽  
Carbon Particles ◽  
Septal Surgery ◽  
Tracheal Lavage ◽  
Saline Solutions

Isotonic saline solution is frequently used in nasal and tracheal lavage. In a previous clinical study, it was found that Ringer-Lactate solution, as a nasal lavage, was better for mucociliary clearance function than isotonic saline solution after nasal septal surgery. In this experimental study, the effects of Ringer-Lactate and isotonic saline solutions on mucociliary clearance of healthy rat tracheal epithelium were investigated by measuring the transport of carbon particles. We found that tracheal segments that were irrigated with Ringer-Lactate had better mucociliary transport than those irrigated with isotonic saline (p = 0.035).

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