نتایج جستجو برای: n r g a
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introduction due to the development of sustainable agriculture and the reduction of utilizing chemical fertilizers, it is essential to use organic fertilizer. organic matter is vital to soil fertility and its productivity. to maintain the level of fertility and the strength of soil, organic matter levels should be maintained at an appropriate level. unfortunately, the level of organic matter in...
t h e s p e c i a l c o n c e n t r i c a l l y b r a c e d f r a m e (s c b f) i s a c o m m o n t y p e o f s t e e l s t r u c t u r a l s y s t e m f o r r e s i s t i n g l a t e r a l l o a d i n g. t h i s t y p e o f s y s t e m p r o v i d e s t h e r e q u i r e d s t i f f n e s s a n d s t r e n g t h a t r e l a t i v e l y l o w c o s t. d e s i g n c o d e s, b a s e d o n p a s ...
برای یک ماتریس n- مربعی مختلط مانند a = (a_ij)، فرض کنید w(a)، برد عددی a بوده و g_w(a) : = conv (?_(i=1)^n??{z ? c ??|z- a_ii ?|? (?_(i?j )??(|a_ij |+|a_ji |)?)/? }) و g^ (a) = ?_(u ?u_n)??g_w (u^* au?), که در آن ،u_n گروه همه ماتریس های یکانی n×n می باشد. مجموعه g^ (a) ناحیه گرشگورین به طور یکانی تقلیل یافته ی a نامیده می شود. در این پایان نامه، برخی از خواص جبری و هندسی g_w(a) و g^ (a) ...
global warming and climate change have drawn special attention to soil and its potential for stable carbon sequestration. soils are the largest stores of carbon in terrestrial carbon cycle and contain about three times more carbon than vegetation cover and two times more than that of atmosphere. studying the effects of grazing on soil carbon storage is important because of the major role soil o...
gastrointestinal basidiobolomycosis (gib) is an unusual, rare, but emerging fungal infection in the stomach, small intestine, colon, and liver. it has been rarely reported in the english literature and most of the reported cases have been from us, saudi arabia, kuwait, and iran. in the last five years, 17 cases have been reported from one or two provinces in iran, and it seems that it has been ...
a l t h o u g h m o s t c o m p a n i e s s p e n d l e s s o n p r o d u c t d e s i g n, e x p e r i e n c e s h o w s t h a t, t h e s e c o m p a n i e s h a v e t o p a y h i g h e r c o s t s d u e t o p r o d u c t i o n p r o b l e m s o r l o s s o f m a r k e t. l i t e r a t u r e s t u d i e s s h o w t h a t t h e d e s i g n f o r s i x s i g m a i s a p o w e r f u l a p p r o a ...
to evaluate the anti-transpiration effect on yield and yield components of corn late yield 704 under drought stress experiment split factorial randomized complete block design with three replications in spring 2012 at the research station, kermanshah. and paclobutrazol treatments include salicylic acid, which is taking on two levels. based on the values determined in the following order foliar ...
the effect of gibberellic acid (ga3) spraying on some characteristics of cyclamen flowering trend during the second flowering year was investigated. ga3 sprays were applied in concentrations of 0, 20, 30, 40, and 50 mg/l. the trial was carried out as a randomized complete design of three replications. the total flower count, flower count during the flowering peak, days from spraying to flowerin...
in the present experiment, the effects of nitrogen and phosphor fertilizer application in two methods of furrow and trickle irrigation on the yield and quality of sugar beet seed cultivar 7233 were studied. the experiment was conducted as a split factorial in a completely randomized block design with three replications during 2003 and 2004 in hamedan province. main plots were allocated to irrig...
conclusions the findings of this study reveal that both arg-1 and gpc-3 are helpful ihc markers to separate hcc from cc and ma. furthermore, arg-1 shows 100% sensitivity and 82.6% specificity for the diagnosis of hcc whereas gpc-3 demonstrated 97.7% sensitivity and 91.3% specificity for the diagnosis of this tumor. results arginase-1 and gpc-3 demonstrated diffuse staining, as reactivity in > 9...
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