نتایج جستجو برای: non thermal plasma

تعداد نتایج: 1824240  

2011
Tae-Hee Kim Sooseok Choi Dong-Wha Park

Numerical simulation on the thermal plasma characteristics was carried out inside of the DC non-transferred thermal plasma system to preparation of AlN nano powder. Especially, chemical reactions were considered between thermal plasma, Al metal bulk, and NH3 gas inside of the reactor by FLUENT computational fluid dynamics code. In our simulations, 2-D axis-symmetric domain was assumed, and the ...

2014
Beate Haertel Thomas von Woedtke Klaus-Dieter Weltmann Ulrike Lindequist

Non-thermal atmospheric-pressure plasma, also named cold plasma, is defined as a partly ionized gas. Therefore, it cannot be equated with plasma from blood; it is not biological in nature. Non-thermal atmospheric-pressure plasma is a new innovative approach in medicine not only for the treatment of wounds, but with a wide-range of other applications, as e.g. topical treatment of other skin dise...

Journal: :Applied sciences 2021

Various reactive oxygen and nitrogen species are accompanied by electrons, ultra-violet (UV) radiation, ions, photons, electric fields in non-thermal atmospheric pressure plasma. Plasma technology is already used diverse fields, such as biomedicine, dentistry, agriculture, ozone generation, chemical synthesis, surface treatment, coating. Non-thermal plasma also considered a promising environmen...

In this article, failure and fracture mechanisms in an aluminum alloy (which has been used in diesel internal combustion engines), with and without ceramic thermal barrier coatings, have been investigated under isothermal and non-isothermal fatigue loadings. In this research, the base material is an aluminum-silicon-magnesium alloy and the thermal barrier coating includes a metallic bond coat l...

2012
V. R. Heberlein

Arc plasma torches are the primary components of various industrial thermal plasma processes involving plasma spraying, metal cutting and welding, thermal plasma CVD, metal melting and remelting, waste treatment and gas production. They are relatively simple devices whose operation implies intricate thermal, chemical, electrical, and fluid dynamics phenomena. Modeling may be used as a means to ...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
mohammad azadi assistant professor, department of mechanical engineering, university of semnan, semnan, iran g.h. farrahi professor, department of mechanical engineering, sharif university, tehran, iran.

in this article, failure and fracture mechanisms in an aluminum alloy (which has been used in diesel internal combustion engines), with and without ceramic thermal barrier coatings, have been investigated under isothermal and non-isothermal fatigue loadings. in this research, the base material is an aluminum-silicon-magnesium alloy and the thermal barrier coating includes a metallic bond coat l...

2014
Yingying Li Gary Friedman Alex Fridman Hai-Feng Ji

Solutions of ribose, glucose, and sucrose in water and phosphate buffer were treated with non-thermal plasma generated by using a dielectric barrier discharge (DBD) device and the oxidation products were characterized by H NMR and GC–MS. Our results demonstrate that these sugars are decomposed to formic acid, glycolic acid, glyceric acid, tartronic acid, tartaric acid, acetic acid, and oxalic a...

2009
Y. J. Hong Y. S. Seo H. W. Lee J. Choi S. K. Kang G. Y. Park G. C. Kim M. Yoon J. K. Lee

It was presented that various types of non-thermal atmospheric pressure plasma sources operated with low frequency(~kHz) or microwave frequency feeding argon or helium gas, or in the ambient air could be used for the treatment of cancer cells, sterilization, tooth whitening, and blood coagulation. The antibody-conjugated GNPs enhanced to kill cancer cells exposed to plasmas. The plasmas treatme...

ژورنال: سلامت کار ایران 2016

Abstract Background and aims:Nowadays, the non-thermal plasma is considered as a successful new technology with high efficiency in the air pollution control and is in the focal attention of the researchers. Various types of atmospheric pollutants adversely influence on the human health and the environment regionally and globally. Carbon monoxide has been introduced as a critical pollutant wh...

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