نتایج جستجو برای: nano zero
تعداد نتایج: 199138 فیلتر نتایج به سال:
فرآیند ماشینکاری به روش تخلیه الکتریکی( edm)، یکی از فرآیندهای نوین ماشینکاری است که کاربردهای متنوعی در ساخت و تولید محصولات میکرومتری دارد. رشد و توسعه نانوتکنولوژی و نیاز به بهره گیری از روشهای جدید موجب شده است که جذبه زیادی برای استفاده از فرآیند edm در ساخت و تولید محصولات نانومتری ایجاد شود. فرآیند nano-edm یک فرآیند ماشینکاری حرارتی است که در آن از انرژی حرارتی حاصل از جرقه الکتریکی برا...
abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...
We introduce a process for the fabrication of high-quality, spatially isolated nano-diamonds on iridium via microwave-plasma-assisted chemical vapour deposition (CVD) growth. We perform spectroscopy of single siliconvacancy (SiV) centres produced during the growth of the nano-diamonds. The colour centres exhibit extraordinary narrow zero-phonon-lines down to 0.7 nm at room temperature. Single p...
Although silicon (Si) is a non-essential element for most crops, but has shown beneficial roles in growth of crop plants. Therefore, evaluation of nutritional role of Si and nano Si components in crop production is necessary. For this purpose, a factorial experiment, based on randomized complete blocks design with three replications, was conducted at the Research Greenhouse of College of Agricu...
در این مطالعه، فرمولاسیون¬های نانوی نور تخریب¬پذیر و زیست¬سازگار ایمیداکلوپرید و ایندوکساکارب، به واسطه¬ی کپسوله کردن مستقیم هر کدام ازآنها با کوپلیمرهای خطی- دندریتیک پلی¬سیتریک¬اسید-پلی¬اتیلن¬گلیکول-پلی¬سیتریک¬اسید (pca-peg-pca) تهیه شدند. سنتز این نانوآفت¬کش¬ها به دو صورت بدون کاربرد نانوذرات tio2 (nano-ind و nano-imi) و با کاربرد نانوذرات tio2 (nano-ind/tio2 و nano-imi/tio2) انجام شد. فرمول...
Rapid population growth has evolved the big problem of limited fresh water supply in the world and the wastewater treatment is the only recycling process which can overcome this problem. Technology advancement has led us to the nanotechnology which is having tremendous scope for wastewater treatment. Nanoadsorbents, magnetic nanoparticles, nanofiltration, nano zero valent iron, nanocatalysts, n...
In order to evaluate the effect of foliar application of iron and magnesium nano-chelate fertilizers on morphophysiological characteristics of Vigna sinensis L., an experiment was conducted in Shahroud University of Technology in 2010-2011. The experiment was carried out in a factorial arrangement with randomized complete block design with three replications. Treatments included five levels of ...
nowadays, the use of innovative nano-technology in the food industry quality control has significantly increased and it is widely employed in numerous fields such as diagnosis of microbial toxin of foods using nano-biosensors, increasing food shelf-life with the help of nano-clay and nano-silver packaging, as well as changing some of the unpleasant organoleptic properties such as taste, color, ...
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