نتایج جستجو برای: area of sub

تعداد نتایج: 21209728  

ژورنال: علوم آب و خاک 2017
افلاطونی, محمد, توان‌پور, نیما, نظری, نجمه,

This research is aimed to determine the contribution of sub-basins flow to total watershed flood in Khersan river basin located in Kohkilooyeh and Boyer Ahmad province. To do this, the rainfall-runoff model HEC-HMS was used to simulate peak runoff values for 11 sub-basins. HEC-HMS input was constructed using GIS. The results suggest that the change in different return periods is accompanied by ...

Afshar Fallah Imani Ali Salehi Sardoei, Parviz Rahbarian

Field trials with Spathiphyllum wallisii Regel were conducted at the experimental farm of Faculty of Agriculture, University Azad Jiroft in 2012 growth seasons. The aim of this work is to study the effect of foliar application with benzyladenine (BA) at 0, 100, 200 and 400 mg.L-1 and gibberellic acid (GA3) at 0, 100 and 200 mg.L-1 on the vegetative grow...

Afshar Fallah Imani Ali Salehi Sardoei, Parviz Rahbarian

Field trials with Spathiphyllum wallisii Regel were conducted at the experimental farm of Faculty of Agriculture, University Azad Jiroft in 2012 growth seasons. The aim of this work is to study the effect of foliar application with benzyladenine (BA) at 0, 100, 200 and 400 mg.L-1 and gibberellic acid (GA3) at 0, 100 and 200 mg.L-1 on the vegetative grow...

The sol-gel synthesis method allows greater control over glass morphology at a relatively low processing temperature (200 °C) in comparison with melt-derived glasses. In present study, phosphate-based glasses with the general formula of (P2O5)55-(CaO)25-(Na2O)10-(TiO2)10 was synthesized via a novel and facil...

The current study examined the effect of metal oxide catalysts on the sorption and photocatalytic efficiencies for the removal of ciprofloxacin and ofloxacin in water. ZnO and TiO2 catalysts are prepared using a suitable method based on the sol-gel process, which have a great change in structural and textural properties. The structure and surface area of the synthesized catalysts wer...

The current study examined the effect of metal oxide catalysts on the sorption and photocatalytic efficiencies for the removal of ciprofloxacin and ofloxacin in water. ZnO and TiO2 catalysts are prepared using a suitable method based on the sol-gel process, which have a great change in structural and textural properties. The structure and surface area of the synthesized catalysts wer...

Journal: :global journal of environmental science and management 0
m. sepehr department of marine biology, science and research branch, islamic azad university, tehran, iran s.m.r. fatemi department of marine biology, science and research branch, islamic azad university, tehran, iran a. danehkar department of environmental sciences, faculty of natural resources, university of tehran, tehran, iran a. mashinchian moradi department of marine biology, science and research branch, islamic azad university, tehran, iran

given the reduced freshwater supplies across the world, seawater desalination is one of the appropriate methods available for producing freshwater. selecting an optimal location is crucial in the installation of these plants owing to the environmental problems they cause. the present study was conducted to identify optimal locations for installing desalination plants in the coastal areas of sou...

Journal: :آمایش سرزمین 0
ناصر احمدی ثانی استادیار، دانشکده کشاورزی و منابع طبیعی دانشگاه آزاد اسلامی واحد مهاباد ساسان بابایی کفاکی استادیار دانشکده کشاورزی و منابع طبیعی دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران اسدالله متاجی دانشیار، دانشکده کشاورزی و منابع طبیعی دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران

zagros forests are a treasure of various valuable species of oak in iran and the world. long-term misuse in the past has caused severe degradation in the zagros forests. recently these forests have become national but misuses by local people to make living because of poverty and unemployment are continued. in order to reduce degradation and improve sustainability, ecological capability for exte...

Journal: :desert 2012
h. azarnivand m.a. zare chahouki h. joneidi

one of the characteristics in iranian model of desertification potential assessment (imdpa) is vegetation. sincevegetation is very important factor in the degradation of land, so some indices were determined for this item in order toevaluate desertification potential of arid, semi arid and arid sub humid areas of iran. the indices included vegetationcondition, exploit and revegetation. to calib...

Ali Akbar Mirzaei, Mostafa Feyzi

A series of x(Co, Mn)/TiO2 catalysts (x=2–12wt.%) containing 25%Co and 75%Mn were prepared by the co-impregnation method. All prepared catalysts have been tested in Fischer-Tropsch synthesis for production of C2-C4 olefins. It was found that the catalyst containing 8wt.%(Co,Mn)/TiO2 is an optimal catalyst for production of C...

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