نتایج جستجو برای: ironmanganese oxide

تعداد نتایج: 176320  

Journal: :international journal of iron & steel society of iran 2011
l. erfani e. keshavarz alamdari y. ganjkhanloo

in this research, the activity of mno, produced during steel making in aluminate-rich slags, was investigated.according to thermodynamic equations and mathematical calculation, a series of relations was obtained forevaluation of oxide activity using masson’s theory. the obtained relations were solved according to levenberg- marquardt method and using matlab software. the results were correlated...

Journal: :شیمی کاربردی 0
شاهین خادمی نیا گروه شیمی، دانشگاه سمنان، سمنان، ایران مهدی بهزاد گروه شیمی، دانشگاه سمنان، سمنان، ایران عبدالعلی عالمی محبوبه دولتیاری مورات سرتکول

nanostructured ceo2 powders were synthesized via a series of hydrothermal and solution precipitation methods. three different hydrothermal methods including 1:2 and 1:1 bi:ce molar ratios at 180 °c for 48 h (s1 and s2, respectively) without calcinations and 2:1 bi:ce molar ratio at 180 °c for 48 h with calcinations (s3) were performed successfully for the synthesis of the target nanomaterials. ...

Journal: :iranian journal of basic medical sciences 0
monire hajimoradi department of immunology, school of medical sciences, tarbiat modares university, tehran, iran saeed daneshmandi department of immunology, school of medical sciences, tarbiat modares university, tehran, iran maryam roudbary department of mycology, school of medical sciences, tarbiat modares university, tehran, iran shahla roudbar mohammadi department of mycology, school of medical sciences, tarbiat modares university, tehran, iran zuhair mohammad hassan department of immunology, school of medical sciences, tarbiat modares university, tehran, iran rozita heidari department of mycology, school of medical sciences, tarbiat modares university, tehran, iran

objective(s) the fractions of candida albicans have been used as an immunomodulator. the present work assessed the effect of different fractions of c. albicans on nitric oxide (no) production by mice peritoneal macrophages. materials and methods cell wall and cytoplasmic fractions of c. albicans atcc 10321 strain were extracted. mice peritoneal macrophages were purified and cultured. different ...

Journal: :international journal of preventive medicine 0
majid khazaei babak barmaki ali nasimi

introduction: different vasoactive factors can modulate cardiovascular adaptation to hemorrhagic shock including nitric oxide (no). in this study we investigated the effect of  the no synthase inhibitor for treatment of  decompensated hemorrhagic shock in normotensive and hypertensive rats. methods: twenty‑four male wistar rats were divided into two groups: the normotensive and hypertensive gro...

Journal: :iranian journal of immunology 0
zahra amirghofran department of immunology saeed malek-hosseini department of immunology hossein golmoghaddam department of immunology fathollah kalantar department of immunology mehdi shabani department of immunology

background: a number of medicinal plants have been used to treat various immunological diseases. nitric oxide (no) has an important regulatory role in the various types of inflammatory processes. objective: to investigate the no modulatory activity of the extracts of several medicinal plants native to iran including dracocephalum kotschyi, linum persicum, dionysia termeana, salvia mirzayanii, f...

Journal: :nephro-urology monthly 0
hossein keyhan ]oo _oy mnnou~oloo{p}~i , kmmmikoszita}niw~sm}{ uivanmwe{si ybvensin medical branch, ir iran +98-9123110306, [email protected]; ]oo _oy mnnou~oloo{p}~i , kmmmikoszita}niw~sm}{ uivanmwe{si

background since nitric oxide (no) has an oxidant activity, lower levels following a varicocelectomy may result in better functioning sperm, improved semen quality and consequently higher fertility rates. however, this procedure should be examined in more detail. objectives accordingly, this study was performed to compare the before and after varicocelectomy levels of no in the seminal fluid of...

Journal: :acta medica iranica 0
"ghane t kebriaezadeh a azizi e dehpour ar ostad sn "

the mechanism by which lead may cause a perturbotion in the nevous system is through the nitric oxide synthase. in this study the effect of lead acetate on the hippocampal constitutive nitric oxide production was studied. the variation in the nitric oxide production may contribute to physiological lead neurotoxicity in vivo. different concentrations of lead acetate (10-9 to 10-6 m), wre added t...

Journal: :journal of ultrafine grained and nanostructured materials 2015
maryam hosseini-zori

nano-encapsulated iron oxide in zirconium oxide-coated mica pigments are thermally stable,innocuous to human health, non-combustible, and they do not conduct electricity. they could beapplied in several industries such as thermoplastics, cosmetics, food packaging, children toys, paints,automobiles coating, security purposes, and banknotes. nowadays, they are highly desirable inceramic decoratio...

محمدرضا گرسیوزجزی, , محمدعلی گلعذار , , کیوان رئیسی, ,

In this study, the chemical composition, thickness and tribocorrosion behavior of oxide films prepared on Ti-6Al-4V alloy by anodising treatment in H2SO4/H3PO4 electrolyte at the potentials higher than the dielectric breakdown voltage were evaluated. The thickness measurement of the oxide layers showed a linear increase of thickness by increasing the anodizing voltage. The EDS analysis of oxide...

Journal: :physiology and pharmacology 0
asghar ghasemi endocrine research center, research institute for endocrine sciences, shahid beheshti university (m.c) tehran,iran po box: 19395-4763 hamid farahani endocrine research center, research institute for endocrine sciences, shahid beheshti university (m.c) tehran,iran po box: 19395-4763 saleh zahedi asl endocrine research center, research institute for endocrine sciences, shahid beheshti university (m.c) tehran,iran po box: 19395-4763

introduction: repeated hyperglycemia play an important role in the development of atherosclerosis in diabetic patients. endothelium is the organ of the first-line defense against atherosclerosis and nitric oxide has a major role in this task. the aim of this study was to determine changes in plasma nitric oxide metabolites concentration during glucose tolerance test in type 2 diabetic rats. met...

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