نتایج جستجو برای: in situ impregnation

تعداد نتایج: 16977888  

Journal: Pollution 2018

The present research investigates the ability of graphene oxide nanosheets for treatment of dairy wastewater, using In Situ Sludge Magnetic Impregnation” (ISSMI) to separate sludge after adsorption process. To increase the interaction between magnetic nanoparticles and graphene oxide, the former has been functionalized, using 3-Aminopropyl triethoxysilane, with the synthesized graphene oxide an...

Journal: :international journal of occupational hygiene 0
mohsen aliabadi department of occupational hygiene, faculty of public health, hamadan university of medical sciences, hamadan, iran. rostam golmohammadi department of occupational hygiene, faculty of public health and center for health researches, hamadan university of medical sciences, hamadan, iran. abdolreza ohadi department of mechanical engineering, amirkabir university of technology, tehran, iran.

sound power is considered as an excellent measure for evaluating the efficiency of noise controls as well as for comparing noise sources in workrooms. this parameter can be determined by sound pressure or intensity based methods in real conditions of workrooms. this paper aims empirically to compare these in situ methods in relation to a typical industrial machine located in workroom in terms o...

Journal: :علوم و تکنولوژی پلیمر 0
محمد برمر مهدی باریکانی مجتبی فریدون نیا

in this work, a thermoplastic polyurethane elastomer (tpue) model based on polytetramethylene glycol, toluene diisocyanate and 1,4-butanediol was selected and synthesized. according to this model two types of polyurethane nanocomposites were prepared by in situ polymerization and melt intercalation procedures. the organo-modified nanoclay was used in nanocomposites samples in 0.4 weight percent...

Journal: :Microporous and Mesoporous Materials 2021

Optimization of supported heterogeneous catalysts requires a careful control their synthesis conditions and in particular the metal impregnation step. This paper presents theoretical experimental study both dry diffusional Ni/γ-Al2O3 catalysts. The advanced characterization technique Magnetic Resonance Imaging was used to monitor in-situ step, which provided necessary information develop model....

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1386

چکیده ندارد.

Journal: :Journal of clinical pathology 1987
J M Polak S R Bloom

The advent of modern microscopical investigative methods for the determination of neuroendocrine differentiation has increasingly given credence to the original concept of a "diffuse endocrine system". These methods include a variety of silver impregnation techniques, technologically advanced light and electron microscopical immunocytochemistry, and, lately, the ability to localise specific bin...

Journal: :medical journal of islamic republic of iran 0
mojgan asgari oncopathology research center and hasheminejad clinical research developing center (hcrdc), iran university of medical sci-ences, tehran, iran. mahtab nabi maybodi iran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) maryam abolhasani oncopathology research center and hasheminejad clinical research developing center, iran university of medical sciences, teh-ran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)

background: flat urothelial lesions comprise a spectrum of morphologic changes ranging from reactive atypia to carcinoma in situ (cis). urothelial dysplasia and cis are associated with the recurrence and progression of urothelial carcinoma. distinguishing cis and dysplasia from reactive atypia based on histolopathogical features alone is often difficult. using different immunohistochemical mark...

Journal: :iranian biomedical journal 0
حمید علیزاده نیلی hamid alizadeh nili حسین مزدرانی hossein mozdarani franck pellestor

background: various frequencies of sperm aneuploidy are reported in sperms of subfertile patients compared to normal individuals. moreover, sperm dna damage is shown to be associated with male infertility. in this study, the rate of dna damage and frequencies of aneuploidy in sperms of subfertile patients was investigated. methods: semen samples were obtained from healthy normal and subfertile ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2009
mahshad alaei alimorad rashidi alireza mahjoub

two facile and low cost routes were used for the synthesis of if-ws2 nanoparticles. in this paper, preparation of if-ws2 nanoparticles with two different methods was investigated. in the first method, wo3 nanoparticles were reacted with h2s gas in n2/h2 reducing atmosphere at 900 oc. the as-synthesized if-ws2 nanoparticles are spherical shape with an average size of about 70 nm.  in the second ...

Journal: :mechanics of advanced composite structures‎ 2014
hamid reza salehi manouchehr salehi

in this research, using pyrolysis of phenolic resin in the presence of silicon particles, the sic ceramic composite is formed. the samples were prepared by introducing 30, 35, 40, 45 and 50 wt% of si particles to the phenolic resin. the samples were cured at 180°c then carbonized at 1100°c. the final carbonized c/si composites are hot-pressed at 1500°c in inert atmosphere, which is more than th...

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