نتایج جستجو برای: electron irradiation

تعداد نتایج: 366331  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...

Journal: :iranian journal of applied animal science 2015
s. yakhkeshi s. rahimi p. shawrang

a total of 300 one-day old male broilers (cobb 500) were randomly divided into four treatment groups. the groups comprised of 15 birds each, and were defined by diet and the birds in each group were fed 0 (control), 3, 5, or 7 kgy electron-beam irradiated diets. a total of 5 replicates were performed. the chemical composition of the diet was not affected by irradiation.irradiation doses of 5 an...

Journal: :مجله تحقیقات سلامت 0
محمد تقی قانعیان mohammad taghi ghaneian محمد حسن احرامپوش mohammad hassan ehrampoush محبوبه دهواری mahboobeh dehvari منیره خیرخواه monireh kheirkhah فاطمه انوری fatemeh anvari بهزاد جمشیدی behzad jamshidi

introduction: natural organic matters (noms) existing in water resources led to various problems such as formation of disinfectant by-products (dbps). humic matters like humic acid (ha) are component of noms that should be removed from water. advanced oxidation process (aops) is one of the noms removal methods. the aim of this study was to survey the degradation of humic acid by electron beam i...

Journal: Polyolefins Journal 2019

Irradiation of polymers is one of the most effective and economical methods for modifying their properties and for changing their applications. In this study, an extrusion grade polypropylene (PP) was treated by electron beam irradiation to produce a PP suitable for injection molding. Irradiation was carried out at different doses (0-80 kGy) under atmosphere air and at ambient temperature. Melt...

Journal: :iranian journal of toxicology 0
سعید حسن پور saeed hasanpour department of poultry science, tarbiat modarres university, tehran, iran. شعبان رحیمی shaban rahimi department of poultry science, tarbiat modarres university, tehran, iran. امید فانی مکی omid fani makki msc of animal science, research and development office, zarin gostar sarina company, kashmar, khorasan razavi province, iran. غلامرضا شاه حسینی gholamreza shahhosseini department of agricultural research, medicine and industrial research school, nuclear science and technology institute, karaj, iran. علیرضا خسروی alireza khosravi department of mycology reference center, university of tehran, tehran, iran.

background: this cross sectional study was conducted to evaluate the effect of &gamma-rays; and electron-beam irradiation with a commercial toxin binder-milbond-tx on the performance, feed components, and meat quality of japanese quails challenged with aflatoxin b1. methods: overall, 168 one-d-old chicks (japanese quails) were allocated to eight treatments with three replicates based on a compl...

آقایان, سید عبدالمهدی, میردامادی, امیرحسین, نــوری, حامد,

Electron beam accelerators technology has made significant progress in environmental applications in recent years. Including some environmental applications of industrial accelerators, is clearing the air from oxides of nitrogen and sulfur(NOx , SOx) produced by industrial facilities. Combustion  of coal, oil, natural gas and other gases that are produced in power plant, refineries and industri...

2013
Sunil Sabharwal

The irradiation of materials with electron beams or X rays is used extensively to enhance or modify their physical, chemical or biological properties. These electron beam “irradiators” cover a very wide range of accelerators technology, beam current and energies to produce a wide variety of products, mostly with polymers. They also are used for curing ink, coatings, and adhesives as well as for...

2013
Zhanbing Yang Seiichi Watanabe Takahiko Kato

Randomly distributed lattice point defects such as supersaturated vacancies (SVs) and Frenkel-pairs (FPs, an interstitial and a vacancy) can be simultaneously introduced into the crystal by energetic beam irradiation in outer space and/or nuclear reactors, but their behavior has not been fully understood. Using a high-voltage electron microscope equipped with a laser (laser-HVEM), we show the s...

Journal: :Acta odontologica Scandinavica 2007
Andreas Faltermeier Michael Behr Martin Rosentritt Gerhard Handel

OBJECTIVE Since the properties of polymers can be influenced using electron-beam irradiation, the aim of this study was to investigate whether electron-beam post-curing can improve the mechanical properties of experimental denture base polymers. MATERIAL AND METHODS Rectangular specimens of different experimental polymeric blends were electron-beam irradiated (post-cured) with 25 kGy and 200 ...

Journal: :iranian journal of applied animal science 2013
p. shawrang a.a. sadeghi j. ahmadpanah

this study was conducted to evaluate the effect of electron beam irradiation at doses of 250 and 500 kgy on the chemical composition and ruminal dry matter (dm) and neutral detergent fiber (ndf) degradability of wheat straw. nylon bags of untreated or irradiated wheat straw were suspended in the rumen of three rams for up to 72 h, and resulting data were fitted to non-linear degradation model t...

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