نتایج جستجو برای: water quality evaluat

تعداد نتایج: 1255183  

Journal: :journal of food and bioprocess engineering 0
hossein mirsaeedghazi department of food technology, college of abouraihan, university of tehran, pakdasht, iran.

rivers can be contaminated with different pollutants such as trout farms. evaluation of the effect of trout farm on water quality is important to give new permission for trout farm construction. in current work, the effect of constructed trout farms near the deinachal river on some physicochemical properties namely chemical oxygen demand (cod), biological oxygen demand (bod5), dissolved oxygen ...

Journal: :environmental health engineering and management 0
vahid gholami department of range and watershed management, faculty of natural resources, university of guilan, rasht, iran marhemat sebghati department of range and watershed management, faculty of natural resources, urmia university, urmia, iran zabihollah yousefi department of environmental health engineering, faculty of health, mazandaran university of medical sciences, sari, iran

background: although experiments on water quality are time consuming and expensive, models are often employed as supplement to simulate water quality. artificial neural network (ann) is an efficient tool in hydrologic studies, yet it cannot predetermine its results in the forms of maps and geo-referenced data. methods: in this study, ann was applied to simulate groundwater quality and geographi...

Journal: :journal of food quality and hazards control 0
i. salehi school of allied medical sciences, hamadan university of medical sciences, hamadan, iran m. ghiasi deputy of food and drug, hamadan university of medical sciences, hamadan, iran a.r rahmani department of environmental health, school of public health, hamadan university of medical sciences, hamadan, iran m. nouri sepehr department of environmental health, school of public health, alborz university of medical sciences, karaj, iran m. kiamanesh deputy of health, hamadan university of medical sciences, hamadan, iran l. rafati [email protected]

introduction: the increasing of population and limited drinking water resources has enhanced the necessity of using bottled water. many people are now using bottled water because they believe it is a healthful alternative beverage to soft drinks or other bottled beverages. therefore, the bottled water industry has grown immensely during the past decades. this descriptive cross-sectional study h...

Journal: :desert 2013
m. khotabaei h. emami a. r. astaraei a. fotovat

the application of organic amendments can be an appropriate solution to reclaim and improve physical propertiesof saline-sodic soils. in this research, an experiment was performed under greenhouse conditions to study the effect ofamendments to the physical properties of loamy saline-sodic soil. the five treatments were control (withoutamendment), municipal solid waste compost (mc), vermicompost...

Journal: :تحقیقات نظام سلامت 0
اصغر ابراهیمی مربی، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی یزد، یزد، ایران. محمد مهدی امین استادیار، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران حسن هاشمی عضو هیأت علمی گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهرکرد، شهرکرد، ایران. رضا فولادی فرد کارشناس ارشد، گروه عمران محیط زیست، دانشکده فنی، دانشگاه تهران، تهران، ایران. مرضیه وحید دستجردی کارشناس ارشد، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران.

background: groundwater resources in arid and semi arid regions are very important. groundwater is contaminated by agricultural, industrial and municipal activity which as a result reduces its quality. investigating of the chemical quality of the groundwater is emphasized to identify pollutant environmental impacts associated with incorrect waste disposal practice. this research investigated th...

Journal: :CORROSION ENGINEERING 1983

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - پژوهشکده مهندسی فرایند 1395

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

Raafat Abdeldayem

Drinking water has received considerable attention recently. However, misuse and mismanagement have resulted in a rapid and widespread decline in source-water quality and supply. Water quality guidelines can be used to identify constituents of concern in water, to determine the levels to which the constituents of water must be treated for drinking purposes. Membrane technology for the water cyc...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه امام رضا علیه السلام - دانشکده زبانهای خارجی 1391

abstract this study tried to investigate whether there was any significant relationship between technical translation quality of the senior english translation students and their levels of verbal-linguistic, visual-spatial and interpersonal intelligences. in order to investigate the research questions, the researcher selected a hundred senior english translation students from three universitie...

Homa Rassouli, Maliheh Nobakht, Mehrdad Roghani, Mohammad Taghi Joghataie,

  Abstract   Introduction: Neurodegeneration change is one of the hallmark symptoms of which Alzheimer’s disease (AD) can be modeled by β-amyloid injection into specific regions of brain. (-)-Epigallocatechin-3-gallate (EGCG) is a potent antioxidant agent that its role against oxidative stress and inflammation has been shown in prior studies. In the present study, we have wanted to determine wh...

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