نتایج جستجو برای: density number

تعداد نتایج: 1524123  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی و علوم دریایی 1388

this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1390

abstract previous researches have shown success of growth hormones usage on flower production increase, pod and prevention of abscission of them in some of the pulses. two tests were done, in order to find out the effects of growth hormones to on flower production increase, pod and chick pea yield composites in farmer conditions (2010-11) and green house conditions as factorial on the proje...

Journal: :Journal of the American College of Cardiology 2012

Journal: :journal of biomedical physics and engineering 0
s. sina radiation research center, shiraz university, shiraz, iran. r. faghihi radiation research center, shiraz university, shiraz, iran a. s. meigooni nuclear engineering department, school of mechanical engineering, shiraz university, shiraz, iran.

background: the artificial neural networks (anns) are useful in solving nonlinear processes, without the need for mathematical models of the parameters. since the relationship between the ct numbers and material compositions is not linear, ann can be used for obtaining tissue density and composition. objective: the aim of this study is to utilize ann for determination of the composition and mas...

Journal: :Europhysics Letters (EPL) 1997

Journal: :Symposium - International Astronomical Union 1996

Journal: :Journal of the Japanese Society of Snow and Ice 1957

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