نتایج جستجو برای: Ag
تعداد نتایج: 43571 فیلتر نتایج به سال:
در این تحقیق واکنش تشکیل کمپلکس بین کاتیون های tl+، ag+ و +2pb با 2و6-دی(فوران-2ایل)-4-(4-متوکسی فنیل)پیریدین (dfmp) به عنوان یک لیگاند سنتزی جدید در سیستم های دو جزئی استونیتریل(an)–آب(o2h)و متانول(meoh)–آب(o2h)در دماهای مختلف بوسیله تکنیک هدایت سنجی مورد مطالعه قرار گرفت.
this study was performed to investigate the effect of ag+ as an elicitor on the activity of antioxidant enzymes, content of h2o2, accumulation of total tocopherol and antioxidant activity in hairy root cultures of silybum marianum (l.) gaertn. the hairy roots were treated with 2 mm ag+. the treated and non-treated hairy roots were harvested in the same time and data on h2o2 content, dpph, tocop...
objective: development of resistance against many of the commonly used antibiotics is an impetus for further efforts to search for new antimicrobial agents. the aim of the study was determined as antibacterial activity of silver nanoparticles produced by plantago ovata seed extract against pseudomonas aeruginosa. methods: all 30 strains of p. aeruginosa wereisolated from isolates of the urinary...
structural, optical and electrical properties of silvernanoparticlesdeposited by spin coating method
in this study, silver nanoparticles were synthesized by chemical reduction method at different concentrations of ag colloid in the range of 500-16000 ppm. nanoparticles were deposited by spin coating method on pre-etched glass and si substrates. structural, optical and electrical properties of the samples were studied using scanning electron microscopy equipped with edax, uv-vis spectrophotomet...
مزوپروس های سیلیکاتی بعنوان یکی از چهار اکتشاف مهم در علم مواد و حالت جامد در دهه گذشته بشمار می روند. این مواد دارای حفراتی با اندازه 2 تا 50 نانومتر می باشند.این مواد حتی می توانند بعنوان کاتالیزورهای ردوکس عمل کنند. گسترش کاربرد این مواد از قبیل کاتالیزور و محیط جذب در زمینه های جدید از قبیل اپتیک و الکترونیک بسیار حائز اهمیت است.برجسته ترین عضو این گروه، mcm-41 است که دارای ساختار هگزاگونال...
Vancouver, October 2005. Bridging the Gap between Technology and Users: Leveraging Machine Translation in a Visual Data Triage Tool Thomas Hoeft Nick Cramer M. L. Gregory Elizabeth Hetzler Pacific Northwest National Laboratory Pacific Northwest National Laboratory Pacific Northwest National Laboratory Pacific Northwest National Laboratory 902 Battelle Blvd. 902 Battelle Blvd. 902 Battelle Blvd....
polyaniline and polyamide (nylon 6,6) nanocomposites with silva were prepared by in-situ oxidativepolymerization of aniline monomers in the presence of ag salt nano particles of silver (nps) were symthesieedby controlled reduction of ag+ ions kith sodium borohydride at room temperature. nylon 6,6 wax loaded withag nanoparfieles by erdrapment of ag+ ions into the polymer network, followed by red...
in order to determine the prevalence, incidence and odd ratio of hbv, 681 serum samples were collected from 54 laboratory personnel in tehran in both private and governmental sectors. the samples were tested for hbsag and ab using elisa technique. the results showed that the prevalence of hbsag and ab among clinical laboratory personnel was 2.3 and 20 percent respectively. the prevalence of hbs...
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