نتایج جستجو برای: water balance components

تعداد نتایج: 1044122  

Journal: :آب و خاک 0
مهدی اکبری زهرا سیف حمید زارع ابیانه

abstract evapotranspiration (et) is one of the most important components of the water balance, it is also one of the most difficult to measure. despite the importance of et, methods to obtain values of et are still limited. conventional methods are very local, ranging from point to field scale. estimates of the et over the entire area, especially for irrigated areas, are essential, as these can...

Journal: :journal of agricultural science and technology 2012
m. hosseini a. m. ghafouri m. s. m. amin m. r. tabatabaei m. goodarzi

in recent years, changes in catchments water balance due to land use management have become the main concern of water resources authorities in iran. due to rapid population growth and land use changes, especially construction of taleghan dam, taleghan catchment has undergone rapid changes such as urban development, declining of rangelands, and deterioration of environment and erosion of soil re...

Journal: :international journal of automotive engineering 0
s. sanaye energy systems improvement laboratory, mechanical engineering department, iran university of science and technology, narmak, tehran, iran, 16844 m. dehghandokht

thermal modeling of an automotive cabin was performed in this paper to predict the inside cabin air temperature. to implement this task, thermal and ventilation loads were estimated and the mass and energy balance conservation equations for dry air and water vapor with considering a new parameter (air circulation ratio) as well as the balance equations of internal components of a cabin were der...

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