نتایج جستجو برای: slope percentage

تعداد نتایج: 186255  

Journal: :International Journal of Mathematical Education in Science and Technology 2011

Journal: :Behavior Research Methods 2009

Journal: :Journal on Mathematics Education 2012

Journal: :Journal of Quantitative Analysis in Sports 2019

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه خلیج فارس - دانشکده مهندسی 1393

in civil engineering concrete is a material combined of hydraulic cement, sand, gravel and water. gravel and sand compose 60 to 70 percent of concrete. these aggregates support compression force of concrete. cement paste acts as glue to stick grain together. in bushehr factories producing aggregates do not operate according to astm standards, so that fineness modulus (fm) of the produced sands ...

Journal: :Periodica Polytechnica Social and Management Sciences 2008

Journal: :آب و خاک 0
سیّدحمیدرضا صادقی ملیحه سادات ظریف معظم سید خلّاق میرنیا

abstract the proper management of a watershed depends on recognition of effective elements and investigation of their behavior in different conditions. till date, many researches have studied the role of topographical general characteristics on hydrologic behaviors. whereas, the changeability of hydrologic properties under different conditions, especially in iranian watershed has been rarely ta...

Journal: Desert 2010
a. afzali a. bahremand ali salajegheh m. mahdavi s. dalfardi

Abstract Flood causes great and uncompressible damage to people’s life and properties as well as environment each year in Iran. This research was carried out at the west section of Jazmurian basin that placed in the southeast of Iran. In this research physical characteristics such as area (A), perimeter (Pr), average elevation of basin (av.e), average slope (av.s), gravelious coefficient (G),...

Journal: :Academic Medicine 2002

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