نتایج جستجو برای: options and status quo in lake urmia water conflictstatus quooptionsdm

تعداد نتایج: 21830694  

Journal: :international journal of environmental research 2011
t. ahmadzadeh kokya a.h. pejman e. mahin abdollahzadeh b. ahmadzadeh kokya m. nazariha

in this study some thermodynamic parameters including freezing point, boiling point and the vapor pressure of urmia lake salt water were investigated as some important environmentally monitored physicochemical properties of urmia lake. in this regard salt concentration is chiefly responsible for the modification of the thermodynamic properties of urmia lake water which affects its overall en...

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...

Journal: :آب و خاک 0
جلیلی جلیلی مرید مرید بناکار بناکار نامدار قنبری نامدار قنبری

abstract the urmia lake as an important water body in the northwest of iran, recently is faced with a critical level reduction, which makes it important to evaluate the causes. in this regard understanding of the lake's behavior and assessing effect of tele-connections on lake level oscillations is necessary. this subject constructs objective of the present paper that applies the spectral analy...

Journal: :پژوهش های جغرافیای طبیعی 0
مجتبی یمانی استاد دانشکدة جغرافیا، دانشگاه تهران ابراهیم مقیمی استاد دانشکدة جغرافیا، دانشگاه تهران راضیه لک استادیار پژوهشکدة علوم زمین منصور جعفر بیگلو دانشیار دانشکدة جغرافیا، دانشگاه تهران علیرضا صالحی پور میلانی دانشجوی دکتری ژئومورفولوژی، دانشگاه تهران

introduction lake terraces are geomorphological evidence of climate change during quaternary. location of these terraces location in different elevation shows paleo water lake level fluctuations. investigation about urmia lake terraces was conducted by bobek (1973).he found those terraces in 45-55 meter above urmia water level on that time. according to bobek, development of lake area in paleo ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت معلم تهران - دانشکده علوم 1370

determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...

Journal: :international journal of aquatic biology 0
shirkou jaafari faculty of natural resources, university of tehran, karaj, iran. afshin alizadeh shabani faculty of natural resources, university of tehran, karaj, iran. afshin danehkar faculty of natural resources, university of tehran, karaj, iran.

the study on water level fluctuation in the urmia lake has become of a great importance in recent years. this is due to the importance of the position of this lake as a natural heritage at an international level. the water level decrease at the urmia lake during the recent years has made it necessary to address the matter more than before. investigation and assessment of changes in the lake is ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی 1392

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

Journal: :journal of artificial intelligence in electrical engineering 0
mohsen rasinezam department of electrical engineering, ardabil branch, islamic azad university, ardabil, iran hossein shayegi department of electrical engineering, ardabil branch, islamic azad university, ardabil, iran.

nature has always proven that it is able to overcome its problems. however, humanmanipulation has led to environmental degradations. the dryness of a thousand-year urmia lake(a brine water lake in iran) is an example of environmental degradation that happened due tosuccessive droughts and construction of dams on the basin of this lake. this study examinesmethods for the revival of urmia lake by...

Journal: :تحقیقات اقتصادی 0
غلامعلی شرزه ای دانشیار دانشکده ی اقتصاد دانشگاه تهران وحید ماجد استادیار دانشکده ی اقتصاد دانشگاه علوم اقتصادی

development projects in natural water resources like rivers and lakes, specially transferring water to use in agriculture, domestic and industrial sector without considering environmental values, causes irrecoverable and irreversible damage to ecosystem and future options. if we consider the future generation and species rights, those damages and costs can be very much than we take in. the abov...

Groundwater resources are considered as a largest reservoir of available freshwater in the world. According to the importance and scarcity of this precious resource, studying the groundwater quality changes is very important. Declines in water level of Urmia lake has led to increase in the salinity of water in this lake. In this paper, water level reduction effects were studied on qualitative c...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید