نتایج جستجو برای: which caused numerous environmental problems such as air pollution

تعداد نتایج: 7759802  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

during natural gas processing, water in natural gas may cause to hydrates formation in pipelines which may lead to serious damages to process equipments. given the problems raised by present of water in natural gas, glycol solvent uses to remove water.in contact of glycol with gas always an amount of btex and voc absorb along with water, which on glycol recovery process, these substances separa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1388

asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...

Bilal Ahmad Sadaf Saqlain,

Urbanization is the process in which green space (fields, trees, wetlands, etc.) is converted into black space (concrete and asphalt). Urbanization occurs because people move from rural areas to urban areas. This usually occurs when a country is still developing. Slums and its consequences of overcrowding lack of sanitation, global warming, air pollution, water pollution and loss of forest cove...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ادبیات و علوم انسانی 1390

“any science seeks generalities; the aim is to transcend knowledge of particular cases by discovering general regularities or laws” (chesterman, 2001, p. 1). these were the words of chesterman whose paper has served as a typical example of numerous papers carried out on ‘translation universals’ since the mid-nineties. blum-kulka (1986) is among translation studies scholars who proposed ‘explici...

Journal: :تحقیقات اقتصادی 0
علی امامی میبدی دانشگاه علامه طباطبایی آرش اعظمی احسان حق دوست

nowadays, environmental problems such as air pollution are the most effective factors in metropolitans. so that, the most important effect of environmental factors such as air pollution has been on prices of residential houses. so, investigation the effects of different factors on residential houses shows that prices have special importance. this article has investigated an environmental approa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده علوم اجتماعی 1393

the present study is paid to the evaluation of the welfare program of the unemployment insurance in iran. the main purpose which was the main reason for performing this thesis, was the unemployment insurance plan’s challenges in iran such as financial problems of this plan, prolongation of the credit receipt for some insured people, unemployment slow exiting from the unemployment insurance fund...

Vitamin D deficiency is one of the major health problems that is unexpectedly prevalent in Iran. The ultraviolet (UV) rays of the sunlight are the most important source of vitamin D in humans. In contrast, environmental factors are one of the reasons for decrease in UV transmission to the earth which results in the reduction of vitamin D absorption. Since the role of environmental factors has b...

Journal: :محیط شناسی 0
لعبت زبردست استادیار گروه برنامه ریزی، مدیریت و آموزش محیط زیست، دانشکدۀ محیط زیست، دانشگاه تهران اسماعیل صالحی دانشیار گروه برنامه ریزی، مدیریت و آموزش محیط زیست، دانشکدۀ محیط زیست، دانشگاه تهران محمودرضا مومنی کارشناس ارشد مهندسی محیط زیست پژوهشکدۀ خودرو، سوخت و محیط زیست، پردیس دانشکده های فنی دانشگاه تهران هادی افراسیابی کارشناس ارشد مدیر پژوهشی مرکز مطالعات و برنامه ریزی تهران مروارید محمد امینی کارشناس ارشد مرکز مطالعات و برنامه ریزی تهران

introduction[1] air pollution is one of the major environmental issues in industrial cities such as tehran, in such a way that in a certain time, this city was announced as the second polluted city in the world after new delhi. geographical location of this city produces a situation that air pollution does not find a way for dilution. therefore air pollution and its reduction to an acceptable l...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - پژوهشکده زبانشناسی 1389

a professional is someone whose work involves performing a certain function with some degree of expertise. but a narrower definition limits the term to apply to people such as teachers and doctors, whose expertise involves not only skill and knowledge but also the exercise of highly sophisticated judgment, and whose accreditation necessitates extensive study, often university-based as well as p...

Journal: :American journal of public health 1972
C F Shockey

The rapid industrial development that began in the 1950's created environmental problems which consequently led to health hazards among residents of heavily polluted areas in Japan, such as Minamata Disease and Yokkaichi Asthma. Faced with these situations, the Japanese national government and local environmental authorities exerted much efforts to control pollution as well as to provide soluti...

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