نتایج جستجو برای: chemical components

تعداد نتایج: 748453  

2007
Alfred C. Beckwith Richard W. Jones

T he proximate composition and proteins of three American grain sorghum hybrids were previously described (Jones and Beckwith, 1970). We noted that the prolamine class of protein from these hybrids readily formed gels in alcohol-water systems, as well as in such solvents as dimethyl sulfoxide and 8 M urea solutions. In the alcohol-water system the addition of 1.5 M guanidine hydrochloride (GHCI...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم تربیتی و روانشناسی 1391

abstract prediction of death anxiety on the basis of demographic characteristics and sp پیش بینی اضطراب مرگ براساس ویژگی های دموگرافیک و مولفه های معنویت در سالمندان به کوشش الهام حسن زهی معنویت از جمله مفاهیمی است که سالیان متمادی در حوزه روان شناسی جایگاه خود را یافته است پیشینه پژوهش نشان داده است که با متغیرهای فراوانی در روانشناسی در ارتباط بوده است. هدف از پژوهش حاضر این اس...

Journal: : 2021

There are problems of destruction educational and simulation formulations components special chemical-based products degassing based on organic solvents. Their solution requires the search for cost-effective environmentally friendly solutions approaches to their disposal, especially paying attention fact that it is practically impossible completely free from toxic chemicals. In turn, necessary ...

Journal: :سلامت و محیط زیست 0
علی کولیوند a kulivand 1department environmental health engineering, school of public health, tehran university of medicalدانشکده بهداشت و انستیتو تحقیقات بهداشتی دانشگاه علوم پزشکی تهران، گروه مهندسی بهداشت محیط دانشجوی رامین نبی زاده r nabizadeh 1department environmental health engineering, school of public health, tehran university of medicalدانشیار و عضو هیئت علمی گروه مهندسی بهداشت محیط دانشکده بهداشت و انستیتو تحقیقات بهداشتی، دانشگاه احمد جنیدی جعفری a joneidy 1department environmental health engineering, school of public health, tehran university of medicalدانشیار و عضو هیئت علمی گروه مهندسی بهداشت محیط دانشکده بهداشت، دانشگاه علوم پزشکی ایران مسعود یونسیان m yunesian 1department environmental health engineering, school of public health, tehran university of medical- دانشیار و عضو هیئت علمی گروه مهندسی بهداشت محیط دانشکده بهداشت و انستیتو تحقیقات بهداشتی، دانشگا قاسمعلی عمرانی gh omrany 1department environmental health engineering, school of public health, tehran university of medicalاستاد و عضو هیئت علمی گروه مهندسی بهداشت محیط دانشکده بهداشت و انستیتو تحقیقات بهداشتی، دانشگاه علو

backgrounds and objectives:today, one of the most important environmental issues is solid waste produced in dentistry that because of the presence of hazardous, toxic and pathogen agents has special importance. in this survey, solid waste produced in hamadan dentistry laboratories and practical dentist offices is studied.materials and methods: in this descriptive study, from 24 dentistry labora...

2009
R. P. Lindstedt V. Markaki R. K. Robinson

The ability to predict the inter-conversion of poly-aromatic hydrocarbons (PAHs) of different toxicities and emissions of fine carbon-based particles from Diesel engines are of increasing relevance given their harmful effects. The matter is complicated by the complexity of Diesel fuels and model fuel blends have to be used in numerical simulations of practical engines. The use of aromatic fuel ...

2002
Michael Fokine

The different topics of this thesis include high-temperature stable fiber Bragg gratings, photosensitivity and fiber based components. Fiber Bragg gratings (FBG) are wavelength dispersive refractive index structures manufactured through UV exposure of optical fibers. Their applications range from WDM filters, dispersion compensators and fiber laser resonators for telecommunication applications ...

Journal: :BMC Chemical Biology 2009
Daniela Bertinetti Sonja Schweinsberg Susanne E Hanke Frank Schwede Oliver Bertinetti Stephan Drewianka Hans-Gottfried Genieser Friedrich W Herberg

BACKGROUND In the eukaryotic cell the cAMP-dependent protein kinase (PKA) is a key enzyme in signal transduction and represents the main target of the second messenger cAMP. Here we describe the design, synthesis and characterisation of specifically tailored cAMP analogs which can be utilised as a tool for affinity enrichment and purification as well as for proteomics based analyses of cAMP bin...

2013
C V Naik C K Westbrook O Herbinet W J Pitz M Mehl

New chemical kinetic reaction mechanisms are developed for two of the five major components of biodiesel fuel, methyl stearate and methyl oleate. The mechanisms are produced using existing reaction classes and rules for reaction rates, with additional reaction classes to describe other reactions unique to methyl ester species. Mechanism capabilities were examined by computing fuel/air autoignit...

Journal: :علوم باغبانی 0
نخعی نخعی خلیقی خلیقی ناصری ناصری آبرومند آبرومند

abstract chemical components of narcissus (narcissus tazetta l.) essential oil investigated under farming and natural habitat conditions in south khorasan province. the essential oil was obtained using solvent extraction method. after purification, the oil was analyzed by capillary gc and gc/ms. 12 compnents making 82/82% of total oil in farm sample and 13 components making 63/86% of total oil ...

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