نتایج جستجو برای: oxide

تعداد نتایج: 176320  

Ahmad Allahbakhsh Farhad Sharif M. R. Kalaee Saeedeh Mazinani,

In this study, an efficient and facile technique for preparing graphene oxide in suspension and powder forms was presented based on a modification on Hummers' method followed by an additional ultrasonic process. The method involved the provision of graphene oxide from graphite by reaction of potassium permanganate and sulfuric acid with stabilizing the medium complex. Furthermore, this study ev...

Computational studies have attracted the attention of researchers to understand the structural behavior of the molecules. These methods grade complex systems for novel properties with new predictions in areas of physics, chemistry and biology useful for conduct of experimental studies. Nanoparticles in present day technologies have become integral part in diverse areas of science mostly with me...

Journal: :iranian journal of public health 0
n dashti m ansari m shabani s vardasti a mirsalehian mh noori mughehi

diabetes is characterized by a nitric oxide deficiency at the wound site. diabetes is a factor that influences all stages of wound healing. in animals with acute experimental diabetes induced by streptozotocin (stz), the early inflammatory responses after wounding is impaired, fibroblast and endothelial cell proliferation is reduced as well as accumulation of reparative collagen and gain in wou...

Journal: :iranian journal of earth science 0
s. saadat department of geology, faculty of sciences, islamic azad university, mashhad branch (university of colorado, boulder co.) m. ghoorchi research & exploration center for ore deposit of eastern iran, ferdowsi university of mashhad

different types of iron oxides deposits have been identified along the khaf – dorouneh volcanic and plutonic belt in north east of iran. kuh-e-zar is one of these ore deposits known as fe- oxide gold deposit. the main purpose of this paper is to detect and discriminate the iron oxide minerals in this area based on the etm+ data. data processing has been done by envi (environment for visualizing...

ژورنال: دانش حفاظت و مرمت 2017

Due to the complex corrosion mechanism of the bronze objects, explaining the structure of different layers of corrosion in these objects at microscopic levels is possible. Typically copper oxide(I) is the first corrosion layer on surface of bronze objects that are excavated of historical sites. However, depending on the environmental conditions، various forms of corrosion layer of tin or copper...

Journal: :international journal of nanoscience and nanotechnology 2010
m. movahedi , a. r. mahjoub i. yavari e. kowsari

in this paper, synthesis of the flower-like zinc oxide was performed using microwave assisted dicationic ionic liquid [mmp(im)2 ]br2 . the polycrystalline flower-like zinc oxide nanostructure was obtained when a suitable mole ratio (ionic liquid /zinc acetate) and short duration microwave was used. x-ray diffraction (xrd), scanning electron microscopy (sem), and photoluminescence (pl) spectra w...

Journal: :تحقیقات نظام سلامت 0
رویا ناطقی دانشجوی کارشناسی ارشد، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی زنجان، زنجان، ایران. غلامرضا بنیادی نژاد دانشجوی کارشناسی ارشد، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. محمد مهدی امین دانشیار، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. علی اسدی استادیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی زنجان، زنجان، ایران.

background: in this study, adsorbentn process performance was assessed using nickel oxide nanoparticles for wastewater treatment containing mono azo orange ii dye in a laboratory scale. methods: the effects of various factors such as adsorbent dosage, contact time, ph and initial dye concentration were investigated. findings: based on the obtained results, the optimum ph range to dye removal is...

ژورنال: افق دانش 2022

Aims In recent years, iron oxide nanoparticles have shown incredible possibilities in biomedical applications due to their non-toxic function in biological systems. Furthermore, these nanoparticles have multifunctional applications, such as antibacterial, antifungal, and anticancer effects in medicine due to their magnetic properties.  Methods & Materials In this article, 49 articles related t...

In order to study the effects of supplementary irrigation and nano iron oxide on  the grain yield, and  some physiological and biochemical traits of wheat (Triticum aestivum L.) under rain fed conditions, a factorial experiment was conducted based on a  randomized complete block design with three replications in Agricultural Research Station of Ardabil, Northwest of Iran, in 2016. Factors inclu...

Journal: :iranian journal of medical sciences 0
reyhaneh kheyri department of toxicology and pharmacology, faculty of pharmacy, tehran university of medical sciences, tehran, iran mohammad kazem koohi department of basic sciences, faculty of veterinary medicine, university of tehran, tehran, iran goudarz sadeghi-hashjin pharmacology section, faculty of veterinary medicine, university of tehran, tehran, iran hadiseh nouri pharmacology section, faculty of veterinary medicine, university of tehran, tehran, iran noushin khezli pharmacology section, faculty of veterinary medicine, university of tehran, tehran, iran mohsen aghamohammad hassan department of chemistry, faculty of sciences, payame noor university, tehran, iran

iron oxide is an important biological agent that has a key role in medical processes; however, the mechanism whereby it provides iron for human and animal cells and its biological uses remains unclear. we aimed to evaluate the effects of oral iron oxide on serum iron status and compare the results with those of iron sulfate as a reference salt. fifteen adult rabbits were divided into 3 groups o...

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