نتایج جستجو برای: nano 2 dimethylamino n silica n propyl nn dimethylethanaminium chloride nano dmspdecl

تعداد نتایج: 3264184  

Journal: :محیط زیست طبیعی 0
فرامرز معطر استاد دانشکدۀ محیط زیست و انرژی، واحد علوم و تحقیقات تهران، دانشگاه آزاد اسلامی فریده عتابی استادیار دانشکدۀ محیط زیست و انرژی، واحد علوم و تحقیقات تهران، دانشگاه آزاد اسلامی ندا درویش کارشناس ارشد محیط زیست، دانشکدۀ محیط زیست و انرژی، واحد علوم و تحقیقات تهران

in the recent years, rapid growth of the world’s population and overutilization of fresh water resources have caused fresh water shortage crisis in the world. in spite of the agricultural activities in the northern beaches of iran and also severe decrease of the ground water level, it still has not taken any effective measures to desalinate caspian sea water in large scale. in this research, de...

Journal: :Journal of physics 2023

Abstract In order to eliminate the adverse effects of icing on surface mechanical devices such as power transmission cables and wind turbine blades due low temperature, nano-silica (n-SiO 2 ) micron-silica (m-SiO modified by silane coupling agent were blended with a mass ratio 5:1 subsequently compounded polyurethane (PU) obtain n-SiO /m-SiO /PU superhydrophobic coatings. It is shown that tight...

2016
Liang Zhao Donna Mahony Antonino S. Cavallaro Bing Zhang Jun Zhang James R. Deringer Chun-Xia Zhao Wendy C. Brown Chengzhong Yu Neena Mitter Anton P. J. Middelberg

Anaplasma marginale is the most prevalent tick-borne livestock pathogen and poses a significant threat to cattle industry. In contrast to currently available live blood-derived vaccines against A. marginale, alternative safer and better-defined subunit vaccines will be of great significance. Two proteins (VirB9-1 and VirB9-2) from the Type IV secretion system of A. marginale have been shown to ...

Journal: :Acta Crystallographica Section E Structure Reports Online 2010

Journal: :infection, epidemiology and medicine 0
bahareh bashardoust department of medical mycology, faculty of medical sciences, tarbiat modares university, tehran, ir iran shahla roudbar mohammadi department of medical mycology, faculty of medical sciences, tarbiat modares university, tehran, ir iran maryam roudbary department of parasitology and mycology, school of medical sciences, iran university of medical sciences, tehran, ir iran fateme nikoomanesh department of medical mycology, faculty of medical sciences, tarbiat modares university, tehran, ir iran

background: this study was performed to determine antifungal activity of silver nanoparticles (nano-ag) compared to voriconazole on clinical and standard strains of aspergillus fumigatus. materials and methods: inhibitory potency of nano-ag was determined using microtiter broth dilution method. susceptibility tests were performed against a. fumigatus isolated from bal (bronchoalveolar lavage) o...

Journal: :محیط شناسی 0
سعید اسکندری دانشجوی دکتری مهندسی محیط زیست، دانشکدۀ محیط زیست دانشگاه تهران علی ترابیان استاد گروه مهندسی محیط زیست، دانشکدۀ محیط زیست دانشگاه تهران غلامرضا نبی بید هندی استاد گروه مهندسی محیط زیست، دانشکدۀ محیط زیست دانشگاه تهران مجید بغدادی استادیار گروه مهندسی محیط زیست، دانشکدۀ محیط زیست دانشگاه تهران بهنوش امین زاده استادیار گروه مهندسی محیط زیست، دانشکدۀ محیط زیست دانشگاه تهران

introduction conventional water treatment consist of unit processes include coagulation, flocculation, clarification, filtration and disinfection that goal is removal of turbidity, color and certain bacterial species. in filtration process flocculated substances that have not removed in pervious stage are sediment. filter media is often silica sand that removal mechanism is complex and consists...

TiCl2/nano-γ-Al2O3 as a new heterogeneous Lewis acid catalyst was synthesized and characterized by FE-SEM, XRD, FT-IR, EDS, XRF, BET and TGA. N-substituted pyrroles have been synthesized via Paal–Knorr reaction in the presence of TiCl2/nano-γ-Al2O3 at room temperature under solvent-free conditions.

Journal: :IOP conference series 2023

Abstract A field experiment was carried out during the fall season of 2021 at research station University Anbar - College Agriculture, to find effect humic acid and level nano conventional nitrogen in prepared absorbed element yield potato cultivar Rivera, included two factors: sources their levels, represented by traditional NT 1 , 2 150 300 kg N ha -1 form (urea fertilizer) nano-nitrogen, Nn ...

Journal: :journal of sciences islamic republic of iran 0

a facile one step synthesis of anilino alky1-n-substituted phthalimide i is reported. the following compounds belonging to this series were made: 1. (anilino-n-ethyl) phthalimide 8 2. (3,4, 5-trimethoxy anilino-n-ethyl) phthalimide 6 3. (3,4, 5-trimethoxy anilino-n-propyl) phthalimide 7 4. n-(ethyl phthalirnido-p-amino benzoyl) glutamic acid diethyl ester 10 5. n-(propyl phthalimido-p-amino ben...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1388

در این رساله، طراحی، اجراء و مدلسازی فرآیند nano-edm مورد بررسی و تحقیق قرار گرفت. به منظور تولید نانو- ابزار مناسب برای فرآیند nano-edm یک دستگاه اتوماتیک طراحی و ساخته شد که با استفاده از آن، تاثیر متغیرهای فرآیند ساخت بر خصوصیات نانو- ابزار مورد تحقیق قرار گرفت. با شناسایی سطوح بهینه متغیرهای فرآیند ساخت به روش تاگوچی، نانو- ابزارهایی با شعاع نوک حدود 10 نانومتر و ضریب جانبی (نسبت طول به شعا...

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