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تعداد نتایج: 2030851 فیلتر نتایج به سال:
3,4- ،ch3s(o)2nhp(o)cl2 ، 4 -ch3c6h4nhp(o)cl در این پژوهش ابتدا پیش ماده های 2 4- ) تهیه شده و در سنتز فسفر آمیدهای زیر به کار no2)c6h4c(o)nhp(o)cl و 2 (f2)c6h3c(o)nhp(o)cl2 [(4- ،[(c6h11)(ch3)n]p(o)[nhc6h4(4-ch3)]2 ، [(4-ch3)c6h4nh]p(o)[nc5h9(4-ch3)] گرفته شدند 2 [(3,4- ، ch3s(o)2nhp(o)(nc4h8o)2 ، ch3s(o)2nhp(o)(nhc6h11)2 ، ch3)c6h4nh]p(o)(nhch3)2 4- )]. همچنین فسفر no2)c6h4c(o)nh]p(o)[n(c...
o r g a n i z a t i o n s i n a s u p p l y c h a i n a r e i n d e p e n d e n t e n t i t i e s. a l t h o u g h a c o m p l e t e l y i n t e g r a t e d s o l u t i o n m a y r e s u l t i n o p t i m a l s y s t e m p e r f o r m a n c e, s u p p l y c h a i n m e m b e r s a r e i n t e r e s t e d i n o p t i m i z i n g t h e i r o w n o b j e c t i v e r a t h e r t h a n t h a t o f t...
g l o b a l c o m p e t i t i v e n e s s h a s r e c e n t l y b e c o m e a b i g c h a l l e n g e f o r m a n y c o m p a n i e s a r o u n d t h e w o r l d, w h i c h a r e f o r c e d t o s e e k l o w e r c o s t s a n d h i g h e r q u a l i t y f o r w h a t t h e y p r o d u c e. t h e p r o s p e r i t y o f m a n u f a c t u r i n g f i r m s d e p e n d s o n s e l e c t i n g a n...
Railway optimization problems have been studied from a mathematical programming perspective for decades. This approach is particularly well suited to model the multitude of constraints that typically arises in the context of a railway system. In recent years, these problems have attracted some attention in the algorithms community, with a focus on individual problem aspects, in an attempt to un...
.@o@5@!/5854 >#n(ml54% #@2 - 5 ! r#.l< n(ml4q#4% ,p5 s@#.l< $f8 ,4 @4 % ! =#.l< +%#t # a.@o@5@!l+-,-/84% e>,<-- w4&#p#x5y2350 3# : =0$uv> 4,#s@b- wbz;4 , r:.@o@5@!/58n(ml4% #f 5 54% @2; i%#j3# t=#- [#.l<; i%#j3 w34.@o@5@!/58+ 54 >n(ml /854&# #5:\%:4@pp;8# #4@2sl]# ,p5 <o^ 5)! = #@2 .@o@5@!/58:n(ml4% #f >,_ 9 * rz [ .@o@5@!/5854 ...
background & aim: this study aimed to determine the relationship between lipid and apolipoprotein b-100 (apo b-100) levels in maternal and umbilical cord sera as well as the effects of these components on anthropometric measurements of newborn infants. methods:this correlational study was performed on 85 appropriate for gestational age (aga) newborns and their mothers. for analysis, 5 ml of ma...
aluminophosphate-5 (alpo4-5) nano-pore zeolite was synthesized. the effect of alteration in precursor gel preparation on the morphology of zeolite was studied. the effect of variety of synthesis conditions on the purity, crystal and pore size, and crystallinity of alpo4-5 zeolite been studied. a hydrothermal synthesis has been used to produce nano-pore aluminophosphate-5 crystals. the crystals ...
background: h e r2/ n eu i so n e o ftheepi de rmalg r owth f actor r e c e pt o rsfami l i e s andsee m stohaveprognosticsignificanceofsomesolid t umors.theo b jecti v eof thisstu d yistoevaluatet h epossi b ilityofher2ex p ressioningastricca n cersand the p o s si b le r e lat i o n ship o fh e r2withtumo r ’scli n icopat h o l o gicpara m e te r sa n d a l s oits pr o gno s tic r o l e . m...
u n d o u b t e d l y, i n t h e l a s t d e c a d e s, t h e a s s e t p r i c i n g m o d e l i so n e o f m o s t i m p o r t a n t a n d, a t t h e s a m e t i m e, a t t r a c t i v e, f i n a n c e a r e a s. c a p m h a s b e e n t h e d o m i n a n t m o d e l i n t h i s s e c t i o n f o r m o r e t h a n 40 y e a r s. o n e r e a s o n i s i t s s t r o n g b a s e, w h i c h h a s b...
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