This paper proposes an improved wireless communication channel reservation policy to address the impact on network performance cannot be analyzed under the original model with the primary and secondary users communication channel occupancy rates, and the problem that the secondary user blocking state is significantly higher than the primary user blocking probability under the original model. Si...

this study seeks to examine how a company can select the best intermediary for its marketing channels with minimum of criteria and time. a theoretical framework is proposed based on the most important tasks of intermediary and the criteria to measure them. there are four basic tasks and thirty criteria in three independent levels. subsequently, an exploratory case study in iranian food industry...

In earlier work, we identi ed a 110 millisecond region of low pitch as a prosodic feature which seems to bear the dialog function of encouraging back-channel feedback from the listener. In this paper, we 1 examine the ways in which this prosodic feature co-occurs with semantic, pragmatic, and lexical events. Both subjective analysis and statistical analysis suggest that low-pitch regions are as...