Brain-Computer interface systems are a new mode of communication which provides a new path between brain and its surrounding by processing EEG signals measured in different mental states.  Therefore, choosing suitable features is demanded for a good BCI communication. In this regard, one of the points to be considered is feature vector dimensionality. We present a method of feature reduction us...

We propose to combine directional antennas in a conformal array configuration with a matching two-stage receiver architecture to improve performance of code-division multiple-access (CDMA) communication systems in time-varying channels. We propose a reduced-dimension space–time (ST) RAKE architecture that matches the ST correlation structure of the data received by a circular array. In time-var...

Interconnection networks play a crucial role in the performance of massively parallel computer systems. Hierarchical interconnection networks provide high performance at low cost by exploring the locality that exists in the communication patterns of massively parallel computer systems. The Tori-connected mESH (TESH) Network is a 2D-torus network of multiple basic modules, in which the basic mod...

FSO Communication is the three dimension global communication system with high bandwidth access. Intersatellite communication can be considered as one of the major robust technology of FSO communication. Investigation of various parameters related to intersatellite OWC can be virtually done by using optisystem software. The performance of the system can also be studied. This paper analyzed the ...

companies are always looking to use all possible means to achieve success and effectiveness. today, is notable the use of people with more subjective and skills specific characteristics. the importance of the issue of spirituality and religion, especially spiritual intelligence, felt the various aspects of new era. one of the necessities in the field of anthropology, is according to scientists ...

The rigidity of a matrix measures the number of entries that must be changed in order to reduce its rank below a certain value. The known lower bounds on the rigidity of explicit matrices are very weak. It is known that stronger lower bounds would have implications to complexity theory. We consider restricted variants of the rigidity problem over the complex numbers. Using spectral methods, we ...

Earlier research has shown that young adults exhibit less favorable reactions to older speakers than to their peers, especially for intellectual and social competence. The present study examined the role of age in modifying the evaluations of listeners for effective and ineffective speakers. In a communication paradigm, 80 undergraduate students listened to and followed the taped instructions o...

This paper showed the results of a qualitative investigation that looked into intracultural communication between Brazilian teachers and students of English, and intercultural communication between American teachers and Brazilian students of English. The aims were to identify and describe contextualization cues used by both Brazilian and American speakers of English, and to connect these cues w...

The Tori-connected mESH (TESH) Network is a k-ary n-cube networks of multiple basic modules, in which the basic modules are 2D-mesh networks that are hierarchically interconnected for higher level k-ary n-cube networks. Many adaptive routing algorithms for k-ary n-cube networks have already been proposed. Thus, those algorithms can also be applied to TESH network. We have proposed three adaptiv...

Résumé—Un premier objectif de cette communication est de présenter les principes généraux qui président à la mise en équation des modèles dynamiques des réseaux conservatifs, aussi bien dans le cas des modèles en dimension finie que dans celui des modèles en dimension infinie. Un deuxième objectif est de présenter deux questions relatives au contrôle en boucle fermée de ces réseaux : d’une part...