نتایج جستجو برای: slope percent

تعداد نتایج: 149321  

Journal: :Social Science Research Network 2022

Journal: :پژوهش های تولید گیاهی 0
حسین کاظمی عضو هیات علمی دانشگاه علوم کشاورزی و منابع طبیعی گرگان

geographic information system (gis) and analytical hierarchy process (ahp) were applied to ecological zoning of current agricultural lands in gorgan for sunflower cultivation. for this purpose, agro-ecological requirements of sunflower firstly, identified according to scientific resources. rating and thematic requirement maps were then provided. studied environmental-components were: average, m...

Journal: :اکو هیدرولوژی 0
محسن ذبیحی دانشجوی دکتری علوم و مهندسی آبخیزداری، باشگاه پژوهشگران جوان و نخبگان دانشگاه آزاد اسلامی واحد بجنورد حمیدرضا پورقاسمی استادیار گروه مهندسی منابع طبیعی و محیط زیست، دانشکدۀ کشاورزی، دانشگاه شیراز مرتضی بهزادفر دکتری علوم و مهندسی آبخیزداری، سازمان مدیریت و برنامه ریزی استان خراسان شمالی

nowadays, water supply for sustainable development is one of the most important concerns and challenges in most countries of the world. due to determination of groundwater potential zones are one of the important tools in the conservation, management and utilization of water resources. thus, the present study aimed to prioritize the effective factors on groundwater potential and its susceptibil...

Journal: :دانش آب و خاک 0
کیومرث روشنگر دانشیار گروه آب دانشکده عمران دانشگاه تبریز بهزاد روحپرور دانشجوی سابق کارشناسی ارشد دانشگاه آزاد اسلامی واحد اهر طاهر صداقتی دانشجوی کارسشناسی ارشد ژئو تکنیک دانشگاه تبریز

seepage in earth fill dams is one of the important factors that may cause the erosion and slope instability if it is ignored. therefore, it is crucial to calculate the leakage discharge through the body of dam and foundation, to prevent economic and life hazards by considering technical and economical issues. in this research, the seepage analysis of the body and the stability of the upstream a...

Journal: :جغرافیا و توسعه ناحیه ای 0
ابوالفضل مسعودیان رضا ابراهیمی الهام یاراحمدی

abstract climate change and increase the temperature of the environmental importance of human behavior that is considered in recent years many studies have been devoted .objective of this study is to investigate trend and slope trend monthly of hdd with temperature threshold of 18. mean daily temperature of weather during the statistical period of 44 years (1962-2005) was provided from asfe zar...

Journal: :Journal of pharmacy & pharmaceutical sciences : a publication of the Canadian Society for Pharmaceutical Sciences, Societe canadienne des sciences pharmaceutiques 1999
H Boxenbaum

The purpose of this note is to posit and discuss the concept of "competitive inhibition potential" (CIP), which is an in vivo index of the ability of a competitive inhibitor to elevate plasma concentrations of drug substrates, when the competitive inhibitor is administered at its usual and customary dose.

, ,

A biodiversity investigation was carried out in the wild pistachio research forest located in southwest of Fars Province between 52˚ 30́́ to 52˚ 40́́ longitude and 29˚ to 29˚ 15́ latitude in an areaof 9374 Ha area. 72 sampling transects fifty meters long were designated using systematic-random design. In each sampling plot a list of bush, shrub, and tree species and their abundance were recorded. Th...

2009
Paul Mazaika

Quantitative scaling into percent signal change is helpful to detect and eliminate “bad” results with abnormal extreme values. While cognitive effects give signal changes on the order of 1% (and larger in the visual and auditory cortices), signal variations of over 10% may arise from motion and other artifacts in the data. Thus, a quantitative check on measured effect size can be used to screen...

ژورنال: علوم آب و خاک 2010
سیده زهره موسوی خطیر, , عطاء الله کاویان, , کریم سلیمانی, ,

In this research, logistic regression analysis was used to create a landslide hazard map for Sajaroud basin. At first, an inventory map of 95 landslides was used to preduce a dependent variable, which takes a value of 0 for absence and 1 for presence of landslides. Ten factors affecting landslide occurence such as elevation , slope gradient, slope aspect, slope curvature, rainfall, distance fro...

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