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s u b s e t s . T h i s s t r u c t u r e , u s u a l l y v i e w e d a s c o d i f y i n g a t r i a n g u l a t e d s p a c e , i s u s e d h e r e d i r e c t l y , t o d e s c r i b e " s p a c e s " w h o s e g e o m e t r i c r e a l i s a t i o n c a n b e m i s l e a d i n g . A n i n t r i n s i c h o m o t o p y t h e o r y , n o t b a s e d o n s u c h r e a l i s a t i o n b u t a g...

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...

This paper gives an account of the R/S statistic and its known properties. I t assesses the adequacy of the asymptotic distribution of the statistic in the case of samples of small and moderate size, and suggests an improved approximation based on the beta distribution. The results indicate that the proposed beta approximation is superior to the asymptotic distribution for practical purposes. H...

We argue t h a t A . I . shou ld no t l ose s i g h t o f the need f o r gene ra l p r i n c i p l e s when w o r k i n g w i t h problems in s p e c i f i c domains. We a l s o argue the case f o r s t u d y i n g A r t i f i c i a l L e a r n i n g . We presen t a computer program w i t h a ve ry l i m i t e d sense m o d a l i t y t h a t acqu i res some f a c i l i t y w i t h the E n g l i...

This paper describes damping capac i t y and mechanical p roper t ies o f Zn-8-20%A1 and Zn-8-20%Al-0.02-0.04XMg a l l o y cast ings. Zn-8-20%A1 a l l o y casti ngs show h igh damping when quenched from 573K. Small amount o f Mg a d d i t i o n t o these a l l o y cast ings lowers damping capaci ty considerably b u t e f f e c t i v e t o reduce decomposition through aging a t 423K f o r 48hrs ...