نتایج جستجو برای: oxidation

تعداد نتایج: 117356  

A. A. Moshtaghie, H. Ahmadvand, M. Ani,

Oxidation of low-density lipoprotein (LDL) has been strongly suggested as a key factor in the pathogenesis of atherosclerosis. Thus, the inclusion of some anti-oxidant compounds in daily dietary food stuff may inhibit the production of oxidized LDL and may decrease both the development and the progression of atherosclerosis. The present work investigated the inhibitory effects of extract of Al...

Journal: :فیض 0
بمانعلی جلالی خان آبادی beman ali jalali-khanabadi department of biochemistry, yazd university of medical sciences, yazd, iranیزد، دانشکده پزشکی، دانشگاه علوم پزشکی شهید صدوقی، گروه بیوشیمی عزیزا... صادقی azizollah sadeghi

background: hypertensive patients are highly susceptible to oxidizability. although hypertension is common among iranians, few data are available about lipid oxidation status in the involved people. the aim of this study was to evaluate the relationship between serum lipids levels and susceptibility of lipids to oxidation in hypertensive patients. materials and method: fasting serum lipids and ...

Razieh Mofidi Rasi Sohrab Ershad,

The redox properties of sulfite ion has been examind using cyclic voltammetry in acetonitrile solvent at the surface of gold, pelatin and glassy carbon electrodes. It has bben found tha, sulfite ion exhibits two electron oxidation peak with EC’ mechanism. A novel chemically modified electrode containing Prussian blue complex and multi wall carbon nanotubes (MWCNs) was achieved on the surface of...

رئیسی, کیوان, رضوانی, محمد, کریم‌زاده, فتح اله,

This study has examined the properties of Crofer 22APU stainless steel produced by mechanical alloying for using as interconnect plates in solid oxide fuel cells.This alloy was produced by mixing the source powders and mechanical alloying for 40 hours. For creating a sample with high density, spark-plasma sintering was applied at 1100 °C and 50 Mpa stress for 10 minutes. To achieve the des...

Nickel base superalloy alloys are used in the manufacture of gas turbine engine components, which in use are exposed to high temperatures and corrosive environments. The platinum aluminide coatings described here have been developed to protect nickel base superalloy alloys from oxidation. In this study, the effect of cyclic oxidation, platinum layer thickness and aluminizing process on beha...

A, M. H. Abbasi and J. Safarian, Saidi,

Sponge iron (DRI) due to the high surface area, often shows a high tendency to re-oxidation and at some cases spontaneous combustion (autoignition). In this work, re-oxidation behavior and autoignition of sponge iron, produced from different types of iron ore has been investigated. Isothermal and non-isothermal re-oxidation experiments were carried out on each type of DRI and their autoignition...

Abstract In this study , palladium nano-particles were electro deposited galvano - statically on carbon black powder (Vulcan XC -72R). The catalytic activity for electro - oxidation of ethanol and methanol in alkaline media were studied by cyclic voltammetry and linear sweep voltammetry techniques. The results indicated that the electro-oxidation of ethanol and methanol strongly depends o...

Journal: :health scope 0
saeed dehestani athar environmental and occupational health engineering department, faculty of medical sciences, tarbiatmooeswwsuowws{}}y, ir iran +98-2182883825, asilia_h@ modares.ac.ir hasan asilian environmental and occupational health engineering department, faculty of medical sciences, tarbiatmooeswwsuowws{}}y, ir iran +98-2182883825, asilia_h@ modares.ac.ir; environmental and occupational health engineering department, faculty of medical sciences, tarbiatmooeswwsuowws{}}y, ir iran +98-2182883825, asilia_h@ modares.ac.ir

background diatomite coated by nanoparticles of copper and zinc mixed oxides were used to investigate catalytic oxidation of carbon monoxide. objectives aim of this paper was to investigatediatomite performance as a supporting host to confine the cuo and zno nanoparticles and its catalytic activity for carbon monoxide oxidation. materials and methods the prepared catalysts were characterized by...

Journal: :journal of sciences islamic republic of iran 0

oxidation of different types of 1,4-dihydropyridines with diphenylpicrylhydrazyl (dpp) and benzoyl peroxide (bz2o2) as free radical oxidizing agents to pyridine derivatives is reported and a mechanism for this oxidation is also proposed.

J. Hedjazi, M. Ozve Aminian, Y. Kharazi,

Abstract: In this research, the oxidation behaviour of high Aluminum heat resistant steel (%25Cr,%20Ni,%8Al) hasbeen evaluated at the temperature range of (1000-1300ºC).The results showed that there was no countinous healinglayer on the surface of the alloy when Al increased up to %5.5 and the oxidation resistance of steel decreased due toformation of spinel oxides on the surface.By increasing ...

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