نتایج جستجو برای: microwave irradiation

تعداد نتایج: 112363  

The expeditious synthesis of 2-aryl-benzothia/(oxa)zoles was carried out by the condensation of 2-aminothiophenol/2-aminophenol and diverse aryl aldehydes in presence of Acacia concinna as a biocatalyst under microwave irradiation. The catalytic process is associated with excellent yields, greener reaction conditions and the environmentally friendly microwave technique which are the st...

A.Masoud Noushabadi Dariush Ajami M. Majid Heravi

In an environmentally benign solventless system, alcohols are rapidly oxidized to carbonyl compounds using hexamethylenetetramine-bromine on wet alumina under microwave irradiation.

Journal: :Journal of the American Chemical Society 2006
Shin-Hyun Kim Su Yeon Lee Gi-Ra Yi David J Pine Seung-Man Yang

Monodisperse aqueous emulsion droplets encapsulating colloidal particles were produced in the oil phase, and controlled microwave irradiation of the aqueous drop phase created spherical colloidal crystals by so-called evaporation-induced self-organization of the colloidal particles. Unlike usual colloidal crystals, colloidal crystals in spherical symmetry (or photonic balls) possessed photonic ...

Journal: :iranian journal of radiation research 0
s.m.j. mortazavi medical physics & medical engineering department, the center for research on radiological sciences, school of medicine, shiraz university of medical sciences , shiraz, iran m.a. mosleh-shirazi center for research in medical physics and biomedical engineering, and, radiotherapy department, shiraz university of medical sciences, shiraz, iran a.r. tavassoli shiraz blood transfusion organization, shiraz, iran m. taheri diagnostic laboratory science and technology research center, paramedical school, shiraz university of medical science, shiraz, iran z. bagheri department of biostatistics, school of medicine, shiraz university of medical sciences, shiraz, iran r. ghalandari the center for research in radiological sciences, school of allied medical sciences, shiraz university of medical sciences, shiraz, iran

background: mobile phones, use electromagnetic radiation in the microwave range. on the other hand, there is only one report on radioprotective effects of flaxseed oil. the aim of this study was to investigate the effect of irradiation of rats with microwaves and/or treatment with flaxseed oil on the induction of adaptive response to a subsequent lethal dose (ld) of gamma rays. materials and me...

Journal: :Organic & biomolecular chemistry 2009
Wesleigh F Edwards Douglas D Young Alexander Deiters

The effect of microwave irradiation on DNA/DNA hybridization has been studied under controlled power and temperature conditions. It was discovered that microwave irradiation led to the melting of double-stranded deoxyoligonucleotides well below their thermal melting temperature and independent of the length of the deoxyoligonucleotides. These observations indicate a specific interaction of micr...

Journal: :Nanoscale 2011
Ming-Qiang Zhu Gan-Chao Chen Yun-Mei Li Jun-Bing Fan Ming-Feng Zhu Zhiyong Tang

One-step facile synthesis of monoporous polymer microspheres via microwave-controlled dispersion polymerization is introduced. This template-free method employing the dispersion polymerization of styrene under microwave irradiation induces directly the formation of uniform monoporous polymer microspheres, with controllable morphologies and sizes, which can be tuned by simply adjusting parameter...

Journal: :پژوهش های علوم دامی ایران 0
سیدروح اله ابراهیمی محمودآباد علی نیکخواه علی اصغر صادقی

introduction native rapeseed (nrs) is planted in some parts of iran because of climatic condition. the consumption of nrs in animal nutrition is limited by anti-nutritional such as phytic acid and glucosinolate. moreover, the protein of nrs is highly degraded by rumen microorganisms. several processing methods have been used to enhance the nutritive value of whole oilseeds, including extrusion,...

Journal: :Journal of oral rehabilitation 1994
N Yunus A Harrison R Huggett

The degree of polymerization of an acrylic resin repair material, as established by residual monomer estimation, was compared using three different polymerization methods, i.e. bench-cure, hydroflask-cure and microwave irradiation cure. The repair strength of a conventional heat-polymerized resin was then assessed following repairs using each of these three methods. The lowest level of residual...

A.R. Tavassoli, M. Haghani, M. Shafie, M. Taheri, M.A. Mosleh-Shirazi, R. Ghalandari, S. Bonyadi, S.M.J. Mortazavi, Z. Bagheri,

Background: Mobile phones, use electromagnetic radiation in the microwave range. On the other hand, there is only one report on radioprotective effects of flaxseed oil. The aim of this study was to investigate the effect of irradiation of rats with microwaves and/or treatment with flaxseed oil on the induction of adaptive response to a subsequent lethal dose (LD) of gamma rays. Materia...

2002
J. Rüdiger D. Kalicharan

Microwave irradiation in enzyme cytochemistry is not only advantageous for shortening procedures, but will also improve the sensitivity of histochemical detection since short periods and less fixative are required to obtain good preservation. Moreover, shorter incubation procedures will reduce the diffusion and loss of enzyme activity. Here we compared conventional incubations in a shaking wate...

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