I n o r d e r t o u n d e r s t a n d i t s e n v i r o n m e n t , a m o b i l e r o b o t s h o u l d b e a b l e t o m o d e l c o n s i s t e n t l y t h i s e n v i r o n m e n t , a n d t o l o c a t e i t s e l f c o r r e c t l y. One m a j o r d i f f i c u l t y t o b e s o l v e d is t h e i n a c c u r a c i e s introduced by the sensors. The approach proposed in t h i s p a p e r t...

Two-d imens iona l l a y e r s of charges t r a p p e d a t t h e b o u n d a r i e s between t h e v a r i o u s h e l i u m phases s t r o n g l y i n t e r a c t w i t h t h e s e i n t e r f a c e s a t h i g h e l e c t r i c f i e l d s . The c o u p l i n g , w h i c h l e a d s t o an e l e c t r o h y d r o d y n a m i c i n s t a b i l i t y , p r o v i d e s new methods f o r s t u d...

The pape r p r e s e n t s a f o r m a l t o o l o f m o d e l l i n g o f c o n s t r u c t i o n a l d e s i g n , where t h e c a r d i n a l i s s u e i s knowledge r e p r e s e n t a t i o n . I t i s shown t h a t t h e s t r u c t u r e s o f c l a s s i c a l m a t h e m a t i c a l l o g i c , such a s t t y p e m a n y s o r t e d m o d e l s , can b e a p p l i e d a l m o s t d i r...

Mass d i s t r i b u t i o n s of i o n i c atomic and molecular fragments s p u t t e r e d from carbon s u r f a c e s by s i n g l y charged p o s i t i v e c l u s t e r ions con ta in ing 80 water molecules have been determined. With c l u s t e r k i n e t i c energy of 240 keV s i g n i f i c a n t y i e l d s of molecular fragments con ta in ing up t o 2 1 carbon'atoms were observed. Io...

We analyze the problem of determining inventory and pricing decisions in a two-period retail setting when an opportunity to refine information about uncertain demand is available. The model extends the newsvendor problem with pricing by allowing for multiple suppliers, the pooling of procurement resources, and more general informational dynamics. One contribution is the solution procedure: we s...

A d s o r p t i o n and thermal decomposition of IMi(CG)^ i n t h e cage system o f z e o l i t e Y have been s t u d i e d u i t h EXAFS, e l e c t r o n microscopy and IR s p e c t r o s c o p y , Ni(CO)^ i s adsorbed as an i n t a c t molecule i n both c a t i o n f r e e z e o l i t e Y and NaY. Symmetry changes of the molecule i n NaY are assigned t o the f o r m a t i o n o f Na —OC-IMi b...

T h e p r i n c i p l e s u n d e r l y i n g a c o m p u t e r b a s e d t r e a t m e n t m e t h o d f o r l a n g u a g e a c q u i s i t i o n i n n o n s p e a k i n g a u t i s t i c ch i I dren are descr i bed. T h e m a i n p r i n c i p l e i n v o l v e s e n c o u r a g e m e n t o f e x p l o r a t o r y l e a r n i n g w i t h m i n i m u m a d u l t i n t e r f e r e n c e . T h ...

J. Knoll D e p a r t m e n t of P h a r m a c o l o g y , Semmelweis U n i v e r s i t y of M e d i a n e , Budapest, H u n g a r y K.D. Kohn L a b o r a t o r y of B i o c h e m i c a l P h a r m a c o l o g y , N a t i o n a l I n s t i t u t e of A r t h r i t i s , M e t a b o l i s m a n d D i g e s t i v e Diseases, N a t i o n a l I n s t i t u t e s of H e a l t h , Bethesda, M a r y l ...

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...