Group communications (multicast) are foreseen to be one of the most critical yet challenging technologies to meet the exponentially growing demands for data distribution in a large variety of applications of the Internet (grid computing, web applications, distributed simulations. . . ). When reliability is required, there is no straightforward solutions and meeting the objectives of reliable mu...

In LTE Advanced system, it is critical to carry on various types of services for different user applications. Obviously, the system resource requirements are quite different for each individual service. In order to allocate and schedule limited resources reasonably, the cooperative game model is established and studied in our paper; furthermore, a novel scheme with dynamical system resource all...

In order to improve the usability of a non-rigid registration software running in parallel on a cluster of workstations, we have build a registration grid service. The system is composed of a graphical user interface on the user side that interacts in a complex and fluid manner with the registration software running on a remote parallel computer. Although the transmission of images back and for...

The exact calculation of logistics costs has become a real challenge in logistics and supply chain management. It is essential to gain reliable and accurate costing information to attain efficient resource allocation within the logistics service provider companies. Traditional costing approaches, however, may not be sufficient to reach this aim in case of complex and heterogeneous logistics ser...

How do data analytics increase firm performances? What organizational processes of matter for outcomes? This study empirically examines these questions by using RIETI Data Analytics Survey regarding utilization, and finds following three imprecations. First, strategies promote competencies organization human resources, quality datasets, resulting in performances. Second, non-listed firms non-ma...

The primary and secondary cooling systems of French pressurized water reactor contain many welded components with complex geometry : elbows, welding without smooth profile, nozzles. In service inspections of such components performed with conventional ultrasonic (US) contact transducers present limited performances. First, variations in sensitivity, due to unmatched contact on depressions or ir...

Mobile Ad-Hoc network is a collection of mobile nodes in communication without using infrastructure. As the real-time applications used in today's wireless network grow, we need some schemes to provide more suitable service for them. We know that most of actual schemes do not perform well on traffic which is not strictly CBR. Therefore, in this paper we have studied the impact of real-time VBR ...

A unique observational data set was used to explore quality at the point of service in after-school programs. Staff practices in after-school settings were represented on a series of unidimensional scales closely indexed to staff behavior. In order to account for heterogeneity of staff performances, pattern-centered methods were used to construct profiles of common staff practices. Results reve...

Mobile ad hoc networks (MANET) are formed by mobile nodes with a limited communication range. Routing protocols use a best effort strategy to select the path between a source and a destination. Recently, mobile ad hoc networks are facing a new challenge, quality of service (QoS) routing. QoS is concerned with choosing paths that provide the required performances, specified mainly in terms of th...

Due to the dynamic nature of Mobile Ad Hoc Network (MANET) the Quality of Service (QoS) requires several improvements. In this paper, we propose a novel hierarchical routing protocol based on clustering approach inspired on the heuristic Max-Min D-Cluster that we have improved and implemented on standard OLSR. In order to validate this new release named OLSR-MaxMin2C we studied its stability an...