We present a new synthetic model to follow the evolution of a planetary nebula (PN) and its central star, starting from the onset of AGB phase up to the white dwarf cooling sequence. The model suitably combines various analytical prescriptions to account for different (but inter-related) aspects of planetary nebulae, such as: the dynamical evolution of the primary shell and surrounding ejecta, ...

In this paper, we report our recent work on speaker segmentation. Without a priori information about speaker number and speaker identities, the audio stream is segmented, and segments of the same speaker are grouped together. Speakers are represented by Gaussian Mixture Models (GMMs), then an HMM network is used for segmentation. However, unlike other model-based segmentation methods, the speak...

COMMUNICATION "Every cultural pattern and every single act of social behaviour involves communication in either an explicit or implicit sense"(Edward Sapir)-Communication is culture, culture is communication ROMAN JACOBSON ON COMMUNICATION: " meaning resides in the total act of communication. It is not a stable, predetermined entity which passes, untrammeled, from sender to receiver "-depending...