نتایج جستجو برای: time of concentration

تعداد نتایج: 21278455  

Journal: :iranian journal of health sciences 0
ahmad reza yari research center for environmental pollutants and department of environmental health engineering, school of public health qom university of medical sciences, qom, iran shahram nazari department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran ayoob rastegar department of environmental health engineering, school of public health, sabzevar university of medical sciences, sabzevar, iran soudabeh alizadeh-matboo department of environmental health engineering, school of public health, ardabil university of medical sciences, ardabil, iran gharib majidi department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran mehdi tanhaye-reshvanloo department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran

background and purpose:organic dyes with a complex structure are often toxic, carcinogenic, mutagenic, non-biodegradation and stable in the environment and if released to the environment without treatment can endanger the environment and human health. the aim was to evaluate the performance nanoscalezero-valent iron (nzvi) in the removal of dye acid red 18 (ar18) from aqueous solutions. materia...

پایان نامه :0 1392

با توجه به تجزیه و تحلیل داده ها ما دریافتیم که سطح درامد و تعداد نمایندگیها باتقاضای بیمه عمر رابطه مستقیم دارند و نرخ بهره و بار تکفل با تقاضای بیمه عمر رابطه عکس دارند

Journal: :iranian journal of pediatric hematology and oncology 0
f ansari msc of biochemistry,tehran payame noor university, isfahan cardiovascular research center,isfahan university of medical n soltan mohammadi bsc of biology, isfahan payame noor universityسازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (isfahan university of medical sciences) g naderi phd of biochemistry, associate prof., isfahan cardiovascular research center, isfahan university of medical sciences m sadegh sabet phd of genetic engineering, tabriz universityسازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (isfahan university of medical sciences) a karimi msc of biochemistry,tehran payame noor universityسازمان اصلی تایید شده: دانشگاه تبریز (tabriz university)

abstract introduction the main function of the fibrinolytic system is to dissolve fibrin clots in circulation. this system is composed of inactive precursor plasminogen which can be converted into plasmin by the proteolytic enzymes like tissue-type plasminogen activator (tpa). fibrinolytic properties can be found in a variety of medicine plants and they could effectively prevent cardiovascular ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - پژوهشکده ادبیات 1393

testing plays a vital role in any language teaching program. it allows teachers and stakeholders, including program administrators, parents, admissions officers and prospective employers to be assured that the learners are progressing according to an accepted standard (douglas, 2010). the problems currently facing language testers have both practical and theoretical implications but the first i...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1997
rouhallah bagheri faranak naimian nassrin sheikh

acrylamide was grafted in low density polyethylene during melt processing in the presence of a free radical initiator using a torque rheometer in a closed system. effects of processing time, acrylamide and benzoyl peroxide concentrations were studied. ftir studies revealed that the degree of grafting increased by an increase in acrylamide concentration. maximum grafting was obtained at 7 minute...

Journal: :iranian journal of medical physics 0
amir hakimi health physics and dosimetry laboratory, department of energy engineering and physics, amir kabir university of technology, tehran, iran amir reza jalilian nuclear science research school, nuclear science and technology research institute, tehran, iran ali ghanbarzadeh department of medical radiation engineering, science and research branch, islamic azad university, tehran, iran hamed rezaee jam department of medical physics and biomedical engineering, faculty of medicine, tehran university of medical sciences, tehran, iran

introduction compartmental analysis allows the mathematical separation of tissues and organs to determine activity concentration in each point of interest. biodistribution studies on humans are costly and complicated, whereas such assessments can be easily performed on rodents. in this study, we aimed to develop a pharmacokinetic model of 153sm-maltolate complex as a novel therapeutic agent and...

Journal: :iranian journal of health sciences 0
mansooreh dehghani department of environmental health engineering, school of health, shiraz university of medical sciences, shiraz, iran razieh shabestari amir anushiravani narges shamsedini

abstract background and purpose:the main objectives of this research were to evaluating the application of electrocoagulation process for 198 dye from the aqueous phase and determining the optimum operating conditions to the dye removal using aluminum and iron electrodes. materials and methods:the present study was conducted in bench-scale. the spectrophotometer dr 5000 was used to determine th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1389

abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
arezoo abbasi mohabbat mohebbi elham mahdian

foaming conditions of the red beet (beta vulgaris l) puree were optimized using response surface methodology (rsm) with respect to arabic gum concentrations (0.01 – 0.4% w/w), red beet puree (40 _ 60% w/w),egg white concentration( 5 _ 15% w/w) and whipping time (3 – 9 min) for minimum foam density and foam drainage volume as response variables. foams were prepared from various pulp concentratio...

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