I. I n t r o d u c t i o n The 4 f o r b i t a l i n t h e l a n t h a n i d e s e r i e s has a s m a l l s p a t i a l e x t e n t and i s l o c a t e d i n s i d e t h e 5s5p c o r e . As a r e s u l t t h e 4 f 4 f Coulomb i n t e r a c t i o n U i s l a r g e and t h e h y b r i d i z a t i o n A b e t w e e n t h e 4 f s t a v e and t h e c o n d u c t i o n s t a t e s i s sma 1. I n som...

introduction earth has ever been exposed to environmental hazards. the hazards are continually occurring in the world in the recent years. among them, atmospheric elements have created many human and financial losses in different regions. one of the hazards is dust events and in its severe case is dust storm. it happens more frequently in arid and semiarid regions in deserts and their surroundi...

We p r o p o s e a new a p p r o a c h to r e p r e s e n t i n g r a n g e d a t a o r i g i n a t e d w i t h r e a l scenes b y a c o l l e c t i o n o f s i m p l e p l a n a r a n d / o r c u r v e d o b j e c t s . A r o u g h s k e t c h w i t h o b v i o u s f e a t u r e s i s g e n e r a t e d i n t h e b e g i n n i n g and i t i s i m p r o v e d s t e p b y s t e p a c c o r d i n ...

c o m p l e x e s ; t h e s e f o r m a c a r t e s i a n c l o s e d s u b c a t e g o r y i n t h e t o p o s ! S m p o f s y m m e t r i c s i m p l i c i a l s e t s , o r p r e s h e a v e s o n t h e c a t e g o r y ! å o f f i n i t e , p o s i t i v e c a r d i n a l s . W e s h o w h e r e h o w t h i s h o m o t o p y t h e o r y c a n b e e x t e n d e d t o t h e t o p o s i t s e l...

T h i s paper i s concerned w i t h a p l a n n i n g system f o r a r o b o t w i t h a hand and an eye w h i c h can m a n i p u l a t e b l o c k s . Two d i f f e r e n t k i n d s o f p r o b l e m s o l v e r s a r e used . One i s m a i n l y composed of a theorem p r o v e r based on t h e r e s o l u t i o n p r i n c i p l e , and the o t h e r c o n s i s t s o f a theorem p r o v e ...

T h e p r o b l e m of e f f i c i e n t l y s t o r i n g and r e t r i e v i n g a s p e c i a l c l a s s of k n o w l e d g e d a t a b a s e s , n a m e l y s t a t e s p a c e n e t w o r k s , is t a c k l ed . Th i s p r o b l e m has m a n y s i m i l a r i t i e s w i t h t h e s t o r a g e a n d r e t r i e v a l of p r o g r a m c o d e and d a t a in v i r t u a l m e m o r y s y ...

in order to evaluate the effects of drought stress and methanol foliar application on some quantitative and qualitative traits of soybean (cv. viliamz), a split plot experiment was conducted based on randomized complete block design at the faculty of moghan research farm in 2011. treatments were three levels of drought stress based on irrigation at depletion of 40, 55 and 70 percent of availabl...

A l l i s C h a l m e r s M a n u f a c t u r i n g C o M a r a t h o n Oi l C o . * N a t i o n a l B a n k o f D e t r o i t . D o w C h e m i c a l C o . T H U R S . N O V . 1 9 A m e r i c a n C y a n a m i d C o . C o n t i n e n t a l I l l i no i s N a t i o n a l B a n k a n d T r u s t C o m p a n y o f C h i c a g o . C o r n i n g G l a s s Wo r ks . E s s e x I n t e r n a t i o n a...

mechanisms of drought stress tolerance of gf677 rootstock, peach and almond hybrid, (prunus persica × prunus amygdalus) were studied under in vitro conditions. plantlets of gf677 rootstock were subcultured into the murashige and skoog (ms) solid proliferation medium containing 1 mg/l ba (6-benzyladenine) and 0.1 mg/l naa (naphthaline acetic acid) in four drought stress levels 0 (control), 10, 2...

introduction precipitation is one of the most important meteorological variables in comparison with other climatic parameters. it varies extremely over time and space. the occurrence of this climate phenomenon requires specific circumstances in environment. its accurate measurement is important to a wide range of decision makers including hydrologists, agriculturalists, industrialists and etc. ...