a series of 2-amino-4-aryl-3-cyano-7-(dimethylamino)-4 h -chromenes was synthesized by condensation of 3-(dimethylamino)phenol, an aromatic aldehyde and malonitrile in ethanol containing piperidine. the assignments of the structure of all synthesized compounds were based on spectral data (ir, mass and 1 h nmr). the cytotoxic activities of the synthesized compounds against six human tumor cell l...

titanium dioxide is one kind of important materials, which has been extensively investigated because of its unique electronic and optical properties. a large number of efforts have been made to synthesize tio2 materials with different methods. in this review paper, we summarize the synthesis pathways, morphology, as well as crystallization of the nanostructured tio2. in addition, we also mentio...

In this paper, we study the notion of admissibility for randomised strategies in concurrent games. Intuitively, an admissible strategy is one where the player plays ‘as well as possible’, because there is no other strategy that dominates it, i.e., that wins (almost surely) against a super set of adversarial strategies. We prove that admissible strategies always exist in concurrent games, and we...

This paper gives an overview about the state of the development of various perception-based quality models. The overview addresses dimension-based modeling and models which specifically focus on quality evaluation in the presence of background noise and modeling echo impairments. Finally the quality evaluation of Text-ToSpeech (TTS) systems is discussed.

In this paper work, past, present and future, in articulatory synthesis applied to Portuguese is presented 1 .

The German Text-to-Speech Synthesis system MARY is presented. An interface allowing to access and modify intermediate processing steps without the need for a technical understanding of the system is described, along with examples of how this interface can be put to use in research, development and teaching.