r , e p r e i e n t i r g " U r l r " i n a c o m p u t e r s y s t e m l o r u n d e r s t a n d i n g n a t u r a l l a n g u a g e . They a i d b o t h : n t h e f o r a u l a t i c n and e x p o s i t i o n o f t h e da*a s t r u c t u r e s t h e y r e s e m b l e . E x a m p l e s o f such g r a p h i c a l a i d s a r e f o u n d i n t h e work o f O u i l l i a n ( 1 9 6 8 , 1 9 6 9 ) ,...

introduction malachite green (mg) has been used as a food coloring agent, food additive, medical disinfectant as well as a dye in silk, wool, jute, leather, cotton, paper, and acrylic industries. it is also extensively used as a topical fungicide and ectoparasiticide in aquaculture industries throughout the world. the findings reveal that this dye has now become one of the most controversial co...

calla lily, an ornamental bulbous plant from araceae family (consisting of seven species) is characterized by spadix inflorescence and utilized for cut flower as well as for pot plant. a greenhouse study was conducted in university college of agriculture and nature resources of tehran university, to evaluate the quantitative and qualitative characteristics of pot plant of calla lily. the type o...

T h i s c o n t r i b u t i o n i s c o n c e r n e d w i t h n a t u r a l l a n g u a g e d i a l o g u e a b o u t s c e n e s w i t h m o v i n g o b j e c t s . Two s y s t e m s a r e c o n n e c t e d , a n a t u r a l l a n g u a g e d i a l o g u e s y s t e m o r i g i n a l l y c o n c e i v e d f o r s t a t i c s c e n e s and a n e m e r g i n g s c e n e a n a l y s i s s y s t e...

-Until r e c e n t l y t h e c o n t r o l a n d n a v i g a t i o n o f m o b i l e r o b o t s was m a i n l y p e r f o r m e d b a s e d on e x t e r o c e p t i r e s e n s o r i n g . R e c e n t i n v e s t i g a t i o n on t h e c o o p e r a t i o n of m u l t i p l e r o b o t i c a g e n t s w i t h c e n t r a l i z e d c o n t r o l has u s h e r e d in sma l l a n d less s o p h i...

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

precise application of the n fertilizer rate is critical to achieve maximum yield. in major regions, empirical methods were used for determining n fertilizer requirement. these methods cannot take into account variation in management and environmental conditions on determining fertilizer requirement. crop simulation models can provide an alternative means of determining the optimum crop n requi...

the aim of this study was to investigate the relationships between air, noise, light and landscape pollution on job stress of staff work in high schools of different districts (1, 2, 10 and 11) of tehran. this stress can reduce the efficiency of the personnel. the number of people participated in this research was 250, selected by random from different schools of the districts. the questionnair...

organochlorine pesticides are as environmental pollutants which have a high half-life and transmit from food chain to human and cause side effects such as mutations in different genes and finally cancer. in this research, after sampling and quantitative and qualitative of organochlorine residue, biodegradation of alpha, beta and gamma hexachlorobenzene (linden), ddt, aldrin, dieldrin, endosulfa...

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