investigation of drought event has a great importance in the natural resources management and planning water resources management. in this research, the effect of the climate change on drought characteristics in northwest of iran was investigated using the hadcm3 model under a2 scenario. the statistical downscaling was executed using sdsm 4.2.9 and observed daily precipitation, observed predict...

in order to assess the heritability of short vegetation period (early maturity) of sugar beet hybrids, an experiment was carried out in randomized complete block (rcb) design with 4 replications in abdolrasoul motahari agricaltural research station of sugar beet seed institute, karaj, iran in 2009. in this research, the heredity of the traits in testcrosses derived from crosses of 18 half sib f...

Recently, Souza introduced blowup Ramsey numbers as a generalization of bipartite numbers. For graphs $G$ and $H$, say $G\overset{r}{\longrightarrow} H$ if every $r$-edge-coloring contains monochromatic copy $H$. Let $H[t]$ denote the $t$-blowup Then number $G,H,r,$ $t$ is defined minimum $n$ such that $G[n] \overset{r}{\longrightarrow} H[t]$. proved upper lower bounds on are exponential in $t$...

o r r a a t t o o r r y y r r e e s s e e a a r r c c h h b b y y m m e e a a n n s s o o f f d d a a t t a a b b e e t t w w e e e e n n t t h h e e i i n n f f r r a a s s t t r r u u c c t t u u r r e e , , t t h h e e d d r r i i v v e e r r s s a a n n d d t t h h e e c c h h a a r r a a c c t t e

the mill moth, ephestia kuehniella zeller and indian meal moth, plodia interpunctella (hubner) are two injuriously important pests of stored products worldwide. harobracon hebetor (say) has been used as a biological control agent of moth’s larva in peanut storehouses and as well in packaged cereal products. in the present study, the efficacy of h. hebetor in parasitizing larva of the mill moth ...

the aim of this study was to investigate the barrier properties of cellulose nanocrystals-pvananocomposites. nanocomposite films with different filler loading levels (3, 6, 9 and 12% by wt) weredeveloped by solvent casting method. the effect of cellulose nanocrystals on the barrier properties ofthe nanocomposites was studied. to this end, moisture absorption, water vapor permeability (wvp),oxyg...

the aim of this paper is to determine the different types of theatrical policies applied by the states of iran within the years 198 9(the start of the first presidency of akbar hashemi rafsanjan) to 2009 (the end of the first presidency of mahmoud ahmadi nejad). the method of this research is content analysis. the cabinet approvals within these years which either in their titles or in their tex...

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 ...

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...

sexual behavior in most moths is limited to a precise duration period of either the day or the night. these behaviors as well as the calling behavior are specific. information on reproductive behavior is important in the chemical ecology studies. experiments were conducted to determine the developmental biology, adult time emergence and calling behaviors of three populations of carob moth, ecto...