RAPPORT DE RECHERCHE Vizar, A Visualization Service for Event-Based Systems

A Visualization Service for Event-Based Systems

We propose a visualization tool to help application developers in understand-ing/debugging the execution of event-based applications. Vizar allows applications to record and then replay executions of event-based systems. It is a general purpose visualization service. It is not intended or linked in any way to any speciic system { eventhough it was rst targeted for active databases. Also we inve...

Rapport De Recherche a Exible Event Service for Database Cooperating Components a Exible Event Service for Database Cooperating Components

Future database software (i.e., applications, systems) can no longer be monolithic. Database technology is evolving towards cooperation and integration. Having components which inter-operate, being self-tuned, scalable and available are new challenges. Event infrastructures are well adapted to support software components integration. Therefore, we propose a exible event service which can be use...

Computational study on geometric and electronic properties of 3.6-carbazole based conjugated polymers

In this work, we present firstly a study based on the calculation of the local spin densities of radical cations, which is known as a good measure of reactivity for coupling reactions, to obtain a theoretical basis for the one-step formation of poly(3.6-carbazole) and derivatives. Then we detail a DFT theoretical study of the geometric and electronic properties of oligomers based on carbazole a...

RAPPORT DE RECHERCHE Detailed Sketch of a Parametric Execution Model for Active Database Systems

How Iranian EFL Learners, Persian Native Speakers, and English Native Speakers Attempt to Manage Rapport in Service Encounters

This study aims to examine the cross-cultural similarities and differences in the use of rapport management strategies (rapport enhancement, rapport maintenance, rapport neglect, and rapport challenge) in the complaints during service encounters based on Spencer Oatey’s (2008) model. To this end, 90 participants (30 Persian native speakers, 30 Iranian EFL (English as a foreign language) learner...