Abs t rac t : Most so f tware systems use simple text f i les to represent the cur rent state of an evolv ing design. We propose that layered ne tworks provide a much bet ter medium to represent the design of a so f tware system and its documenta t ion . PIE is an exper imenta l personal in format ion envi ronment wh ich prov ides users w i th descr ip t ive s t ruc tu res for documents and pro...

Immersive virtual environment (IVE) technology offers a wide range of potential benefits to research focused on understanding how individuals perceive and respond to built and natural environments. In an effort to broaden awareness and use of IVE technology in perception, preference and behavior research, this review paper describes how IVE technology can be used to complement more traditional ...

during the recent decades, rapid urbanization growth has led to even faster growth of motorvehicles and especially in large cities. hence, evaluation of the actual level of traffic emissions has gained more interest. this paper, for the first time, presents a bottom-up approach for evaluation of vehicular emissions in tehran- the capital of iran- using the international vehicle emission (ive) m...

ion layer over many of the hardware-specific details of the numerous varieties of IVE display systems. CAVELib provides functions to synchronize the screens and generate the correct perspective on each individual screen. The CAVELib also provides access to the state of all the tracked devices. The abstraction layer provided by CAVELib facilitates the porting of immersive applications from one I...

Study of three-dimensional (3D) gaze and depth perception in immersive virtual environment (IVE) systems is an important research area. Several approaches have been proposed, but the usage of gaze-screen information for depth perception measurement in IVE has never been reported. We suggest a new approach using geometric model to measure depth perception in IVE. We extend information from binoc...

We consider t he language L of the st rings over t he alphabet {a, I} of sha pe x lxl where Ixl is t he length of the st ring x . We show that L is recognized in real t ime by an iterat ive array but not by a one-way cellular auto maton , while the lan guage {O, 1}*· L is recognized in real t ime by a cellula r automato n but not by an iterat ive array.

It has recently been reported from one of our laboratories that the Nc~-tr ini trophenyI (TNP) derivat ive of glucagon stimulates hepatic g lycogenolys is w i th an in t r ins ic ac t i v i t y comparable to that of glucagon. This compound, however, has negligible abil i ty to stimulate ! lver adeny! cyciase ( i ) . The derivative is also a competit ive antagonist of the action of glucagon on l...

ive summarization with a ‘Briefing’ focus