a synoptic method based on stream analysis is applied to understand the governing mechanism of summer rainfall occurrence in the south of iran. based on this, the rainfall data of 152 stations of iran were analyzed for a 33-year period (1970-2002). investigating the spatial and temporal distribution of summer rainfall, a typical rainy region is recognized in the south east of iran. it is found ...

v > V M J n i t ii T r l h l i , p r t i r i f d u il s i u i t u i l p . i p i j • . , r U ' l b tin.' w i u n c i of t i n : ( i r a h a t n l l u k . t r S t m l c i i t x h i p t o r t l i .a c a d e m i c y e a r 1930 -37 , a c c o r d i n g t o a»i a n i m n n c e 1 ' , ! m i n t b y t h e r e g i s t r a r ' s r i f f i c f T h e ; ; ' s tHiiff i if t tsUip i s . a w i m l e d a n n u a ...

in order to determine the best traits related to indirect increasing of grain yield, five wheat genotypes (zagros, tajan, durum cul., kohdasht and n-81-18 line) were evaluated by using randomized complete block design (rcbd) with 4 replications in research field of gorgan university of agricultural sciences and natural recourses. the studied traits included leaf area index (lai), crop growth ra...

background and purpose     methods:     results     conclusion:

Rhode R i v e r s y s t e m have shown t h a t a d i v e r s e w e t l a n d ( M i l l Swamp) h a s a s i g n i f i c a n t i m p a c t on n u t r i e n t r u n o f f f r o m u p l a n d w a t e r s h e d s . I n t h i s p a p e r we p r e s e n t d a t a t o d e m o n s t r a t e how w a t e r q u a l i t y p a r a m e t e r s change as s u r f a c e and s u b s u r f a c e w a t e r moves t h...

Y o u n g , m i d d l e , a n d o l d e r d r i v e r s w e r e m o t o r e d t o w a r d s a t r a f f i c s i g n a l f a c e a n d w e r e r e q u i r e d t o r e p o r t w h e t h e r t h e i l l u m i n a t e d s i g n a l l e n s w a s m o d u l a t i n g . N o s i g n i f i c a n t d i f f e r e n c e s w e r e f o u n d a m o n g t h e t h r e e a g e g r o u p s i n t h e d i s t a n c...

to evaluate the effects of phosphorous, iron and zinc fertilizers on quantity and quality of turnip, a field experiment was conducted in 2009. the experiment treatments arranged as split plot factorial based on a completley randomized design with 4 replications in the research farm of the university of tehran (karaj-iran). the main factor including three levels of phosphorous (super phosphate t...

introduction the historical experience of development process in developed countries revealed that rural development is a basic requirement for national development and that it should be considered and given high priority. accordingly in iran, the government also paid more attention to rural development in recent years. in this regard, different methods and approaches were implemented due to so...

m e a n i n g t h a t e a c h d i s t r i b u t e d s u b p r o b l e m i s s o l v a b l e i n d e p e n d e n t l y a n d t h e s o l u t i o n o f o n e d o e s n o t a f f e c t t h e s o l u t i o n o f o t h e r s . W e w i l l c o n s i d e r t h e e f f e c t s o f r e l a x i n g t h i s a s s u m p t i o n i n S e c t i o n 3 . 3 . 4 . 2 . T h e s o l u t i o n f o u n d h i e r a r c...

a p p r e h e n d s b u t d o e s n o t a p p r e h e n d t h i s s h a p e i n a w a y t h a t i s c o m p l e t e l y i n d e p e n d e n t f r o m m a t e r i a l c o n d i t i o n s . T h e p r o c e s s o f a b s t r a c t i o n i n i n c o m p l e t e s i n c e t h e c a t o n l y k n o w s t h i s s h a p e a s i t c h a r a c t e r i z e s a p a r t i c u l a r o b j e c t a n d n o t i...