نتایج جستجو برای: zinc oxide at four levels zero

تعداد نتایج: 4796047  

In this study, porous zinc oxide nano-flakes were successfully synthesized by anodization method on zinc substrate in a 0.025 M NaOH and 0.05 M NH4Cl solution with the voltage of 10 V at room temperature. The field emission scanning electron microscopy’s (FESEM) images show the structural evolution during 90 min of the anodization process. They also demonstrate the dependency of growth of ZnO f...

Asgari, Esrafil , Hashemzadeh, Bayram , Sheikhmohammadi, Amir ,

 Metronidazole antibiotic is belong to the nitroimidazole family. Non degradability, high solubility in water, toxicity, carcinogenicity and mutagenicity are important concerns related to antibiotics. Therefore, the aim of this study is to apply the new advanced oxidation process of UV/zinc oxide/sulfite (UZS) to degrade metronidazole from aqueous solutions. Methods: In this study, the effect o...

Journal: :بهره برداری و پرورش آبزیان 0
محسن خلیلی دانشجو محمد هرسیج استاد دانشگاه گنبد کاووس حامد کلنگی میانده استاد دانشگاه گرگان حجت اله جعفریان دانشگاه گنبد

whit the extension of nanotechnology and materials engeneering, various nanoparticles are produced that have new characteristics but the toxic effects of them is still unknown in most of materials. nowadays metal oxide nanoparticales are widely used in indusery and other fields. this study was conducted goldfish with the average weigh of 3±0.5 gr and owerag length of 7±0.5 cm nd four cares of z...

Journal: :زراعت دیم ایران 0
نادر دادخواه گروه زراعت، دانشکده کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران علی عبادی گروه زراعت، دانشکده کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران قاسم پرمون گروه زراعت، دانشکده کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران عبدالقیوم قلی پوری گروه زراعت، دانشکده کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران سودابه جهانبخش گروه زراعت، دانشکده کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران

in order to study the effect of foliar zinc spraying on photosynthetic pigments and yield of chickpea under water stress conditions, a factorial experiment carried out based on randomized completely block design (rcbd) with three replications in university of mohaghegh ardabili agricultural research station in 2012. the treatments consisted of three levels of irrigation (irrigated at planting, ...

Journal: :journal of textiles and polymers 0

a feasibility study on the possible growth of rod-shaped nano size zinc oxide particles on the surface of polyester fabric was investigated. the nanoparticles were produced using a hydrolysis method, with a zinc compound being utilized as the starter material. fourier transform infrared spectroscopy (ft-ir), scanning electron microscopy/energy dispersive x-ray spectrometry (sem/eds) and x-ray d...

Journal: :علوم و تکنولوژی پلیمر 0
غلامرضا بخشنده قاسم نادری علی ابوالفتحی مهدی باریکانی علی پروین محمدحسین آسترکی

elastomer compound based on nr/br was prepared using different kinds of nano-zno and zno. the effect of zinc oxide as an activator of sulfur cure on the mechanical and morphological properties of the compound was studied. the result of the mechanical properties showed that the tensile strength, elongation-at-break, resilience, and abrasion resistance of the compound prepared by zno (4 phr) are ...

زاهدی, مرتضی, فتحی, علیرضا,

This experiment was conducted to evaluate the effects of foliar application of ordinary and nano-particles of zinc and iron oxide on the responses of two wheat cultivars (kavir and Tajan) to three levels of salinity (0, 75 and 150 mmol kcal). The experiment was arranged as factorial in a randomized complete block design with four replications. Plant height, leaf area, shoot and root dry weight,...

2014
Rita Wegmüller Fabian Tay Christophe Zeder Marica Brnić Richard F. Hurrell

The water-soluble zinc salts gluconate, sulfate, and acetate are commonly used as supplements in tablet or syrup form to prevent zinc deficiency and to treat diarrhea in children in combination with oral rehydration. Zinc citrate is an alternative compound with high zinc content, slightly soluble in water, which has better sensory properties in syrups but no absorption data in humans.We used th...

2014
Rita Wegmüller Fabian Tay Christophe Zeder Marica Brnić Richard F. Hurrell

The water-soluble zinc salts gluconate, sulfate, and acetate are commonly used as supplements in tablet or syrup form to prevent zinc deficiency and to treat diarrhea in children in combination with oral rehydration. Zinc citrate is an alternative compound with high zinc content, slightly soluble in water, which has better sensory properties in syrups but no absorption data in humans. We used t...

Aligholi, Marsiyeh, Ghavam, Maryam,

Bacterial contamination of four commonly used dental materials Dr. M. Ghavam* - Dr. M. Aligholi** *- Associate Professor of Operative Dentistry Dept. - Faculty of Dentistry – Tehran University of Medical Sciences. **- The member of Microbiology Dept. Faculty of Medicine – Tehran University of Medical Sciences. Background and Aim: Bacterial contamination of dental materials and devices used in d...

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