نتایج جستجو برای: transation surfaces

تعداد نتایج: 130478  

Journal: :Transactions of the American Mathematical Society 1991

Journal: :International Journal of Mathematics 2005

Journal: :journal of lasers in medical sciences 0
reza amid 1deptartment of periodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran 2dental research center, research institute of dental sciences, school of dentistry, shahid beheshti university of medical sciences, tehran, iran gholamali gholami deptartment of periodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran masoud mojahedi deptartmen of laser, school of dentistry, shahid beheshti university of medical sciences, tehran, iran maryam aghalou deptartment of periodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran mohsen gholami private practice, tehran, iran mahdieh mirakhori dental research center, research institute of dental sciences, school of dentistry, shahid beheshti university of medical sciences, tehran, iran

introduction: the efficacy of erbium-doped yttrium aluminum garnet (er:yag) laser for root debridement in comparison with curettes has been the subject of many recent investigations. considering the possibility of chemical and ultra-structural changes in root surfaces following laser irradiation, this study sought to assess the effects of scaling and root planing (srp) with curettes and er:yag ...

Journal: :آب و خاک 0
صالح سنجری محمد فرپور مصطفی کریمیان اقبال عیسی اسفندیار‎پور بروجنی

abstract geomorphology and soil genesis and its development are closely related. besides, soil-landscape studies provide a better understanding of soil forming processes. the objectives of the present research include soil genesis studies, micromorphology and clay mineralogy of soils related to geomorphic surfaces in jiroft area. soil temperature and moisture regimes of the area are hyperthermi...

Journal: :iranian journal of public health 0
h. ladonni m. motabar

the residual activity and air-borne efficacy of etofenprox (trebon 20% wp) were studied on different surfaces in hut scale trial, in kazeroun south of iran, in 1992. the bio-assay contact mortality tests with trebon against anopheles stephensi showed similar responses on pluster, cement and mud surfaces (except wooden surfaces), i.e. at 250, 400 and 500 mg/m2, trebon had residual activity for a...

M. Mahmoudifard M. Safi S. Rahmani

Ultraviolet waves, because of their short wavelength, have a high energy and considerable damaging effects on surfaces. Protection against ultraviolet radiations is one of the finishing treatments done on surfaces exposed to sunlight. The importance of this issue in relation to human health, due to complications such as skin burns and cancer, is doubled. Up t...

Relative diffuse reflection measurements from the original and ground surfaces using a He-Ne laser are reported. The intensity measurements for the metallic, transparent dielectric, matte plastic surfaces and colored papers are presented. Our results indicate that among metallic surfaces tested, aluminum has the highest diffuse reflectance; while the original stainless steel surface shows the l...

Journal: :Pacific Journal of Mathematics 1960

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