نتایج جستجو برای: transmission of pollutant

تعداد نتایج: 21183498  

Journal: :international journal of infection 0
mohammad sakeni school of public health, tehran university of medical sciences, tehran, ir iran; health promotion research center, zahedan university of medical sciences, zahedan, ir iran alireza khorram health promotion research center, zahedan university of medical sciences, zahedan, ir iran reza majdzadeh knowledge utilization research center (kurc), school of public health, tehran university of medical sciences, tehran, ir iran; center for academic and health policy (cahp), tehran university of medical sciences, tehran, ir iran; center for academic and health policy (cahp), tehran university of medical sciences, tehran, ir iran. tel: +98-2166495859, fax: +98-2166495859 ahmad raiesi school of public health, tehran university of medical sciences, tehran, ir iran

conclusions the study showed that irs coverage and acceptance rates were relatively high, which is essential in reaching malaria elimination. the information on malaria transmission and knowledge prevention measures showed that householders were, to a certain extent, familiar with the malaria control activities conducted by the health care service. results a total of 834 households’ heads were ...

Journal: :محیط شناسی 0
حمیدرضا جعفری استاد مدیریت و برنامه ریزی محیط زیست، دانشکدۀ محیط زیست، دانشگاه تهران سیروس حسن پور دانشجوی کارشناسی ارشد سنجش از دور و gis، دانشکدۀ جغرافیا، دانشگاه تهران لیلا رحیلی خراسانی دانشجوی کارشناسی ارشد مهندسی زمین شناسی، دانشکدۀ علوم پایه، دانشگاه آزاد واحد علوم و تحقیقات تهران احمد پور احمد استاد جغرافیا و برنامه ریزی شهری، دانشکدۀ جغرافیا، دانشگاه تهران

introduction: the process of urbanism in countries that are developing, like islamic republic of iran with increasing of the number and the size of cities and the fast accepting of population have been caused the forming of problems like an in-official economics and in-official settlement and was become creating high population in main and old places of city and increasing of air pollution and ...

2017
Renata Dobrucka

Nowadays green synthesis of metal nanoparticles is a developing area of research. In this study, titanium dioxide nanoparticles were biosynthesized using an aqueous solution of Echinacea purpurea herba extract as a bioreductant. This is novel and interesting method for synthesis of TiO2 nanoparticles. The prepared titanium dioxide nanoparticles were characterized using ultraviolet-visible spect...

2017
Farshad Beshkar Sahar Zinatloo-Ajabshir Samira Bagheri Masoud Salavati-Niasari

Highly photocatalytically active copper chromite nanostructured material were prepared via a novel simple hydrothermal reaction between [Cu(en)2(H2O)2]Cl2 and [Cr(en)3]Cl3.3H2O at low temperature, without adding any pH regulator or external capping agent. The as-synthesized nanostructured copper chromite was analyzed by transmission electron microscopy (TEM), UV-vis diffuse reflectance spectros...

شیخ الاسلامی, محمدکاظم, روستایی, مجید ,

Despite the fact that transmission network has a vital role in electricity markets and cost of transmission expansion is considerable, but transmission charges represent a small percentage of power system operating costs. Thus, transmission cost allocation should be a reasonable economic indicator to make decisions on facility allocation, transmission expansion and other similar market tasks. ...

ژورنال: سلامت کار ایران 2018

Background and aims: In recent years, non- thermal plasma could has yield desirable and successful results, in spite of some challenges and limitations. In particular, in emission control of mobile and stationary sources. CO pollutant, which is emitted from various emission sources is a toxic gas and employee exposure at indoor and outdoor workplaces is one of the main world challenges. The app...

Journal: :محیط شناسی 0
مسعود تقوایی دانشیار گروه جغرافیای دانشگاه اصفهان رعنا شیخ بیگلو دانشجوی دکتری جغرافیا و برنامه ریزی شهری دانشگاه اصفهان لیلا اسحاق دواتگر کارشناس ارشد جغرافیا و برنامه ریزی شهری دانشگاه آزاد اسلامی واحد نجف آباد

the outcomes of development of urbanization as pollution of air, water and urban environment are great threats to the health and safety of urban residents. nowadays, urban areas as centers of population and economic activities show high concentrations of pollutants; so that, inconvenient locations of irksome and pollutant jobs in metropolitans such as isfahan city have led to serious threats to...

Dariyosh Parviz Pour,

The harmful effect of the noise on human health has been known for many decades and it's first harmful effect on the hearing came to be known in the year 1831. According to the nature of the work, this di- sease was called Boiler Maker's deafness.  Noise due to the industrial machineries is one of the main cause of Environmental Poliution, and among the different industreis, Textile industry i...

Journal: :Crystals 2023

The synthesis of orthoferrites the type La1−xCexFeO3+x/2, x = 0.00, 0.01, 0.03, 0.05, and 0.07, by applying a simple effective mechanochemical transformation from constituent oxides is presented. Physicochemical methods such as powder X-ray diffraction (XRD), transmission electron microscopy (TEM), UV–Vis spectroscopy, Brunauer–Emmett–Teller (BET) adsorption were applied to gain information abo...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2009
nasser modirshahla mohammad ali behnajady mohammad reza jangi oskui

in the present study, photocatalytic removal of p-nitrophenol has been carried out in the presence of zno by using a batch reactor with a uv-c lamp (15 w). the effects of applied zno concentration and uv light intensity have been studied. the increase of initial pollutant concentration decreases the removal rate, and the results indicate that the apparent reaction rate constant in the uv/zno pr...

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