نتایج جستجو برای: seven parameters topography
تعداد نتایج: 773739 فیلتر نتایج به سال:
existence of heavy minerals in waters in some regions causes serious environmental pollution and affects the soil and water resources quality. soil and waters sensitive to pollutants were investigated in this research, based on the degree of sensitivity of their parameters. the samples obtained from industrial and agricultural areas for identifying water tables at higher risk and display region...
one of the serious problems of iran’s watersheds is soil erosion and can be considered as one of the main obstacles to achieve sustainable agricultural development and natural resources. in most countries of the world, because of absence of accurate data for the sediment erosion, deposition utilizing models to estimate erosion is inevitable. in order to apply effective management in natural res...
with respect to population growth and agricultural development in ardabil plain, vulnerability assessment of the plain aquifer is necessary for management of groundwater resources and the prevention of groundwater contamination. in this study, vulnerability of ardabil plain aquifer to pollution was evaluated by drastic method. drastic model was prepared by seven effective parameters on vulnerab...
Purpose: To assess the effect of corneal cross-linking on progressive keratoconus in children. Method: In this retrospective study we enrolled nine eyes of nine consecutive children aged 11 to 17 years old who underwent corneal riboflavin-UVA induced cross-linking for progressive keratoconus at the Department of Ophthalmology at Assaf Harofeh Medical Center. They were followed for 6 to 24 month...
Vulnerability assessment to delineate areas that are more susceptible to contamination from anthropogenic sources has become an important element for sensible resource management and land use planning. This contribution aims at estimating aquifer vulnerability by applying the DRASTIC model as well as utilizing sensitivity analyses to evaluate the relative importance of the model parameters for ...
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