BACKGROUND Objective criteria for predicting residents' performance do not exist. The purpose of this study was to test the hypothesis that global assessment by an intern selection committee (ISC) would correlate with the future performance of residents. METHODS A prospective study of 277 residents between 1992 and 1999. Global assessment at the time of interview was compared to subsequent cl...

In this paper, we focus on the Bluetooth wireless network, analyzing its ability to support Quality of Service (QoS) requirements defined by the application. We focus on two QoS parameters : (i) an application constraint denoting the importance degree of a message, and (ii) an end-to-end delivery deadline. In a first step, we introduce a local scheduling accounting for the two QoS parameters in...

The performance analysis of a general production–inventory control system under uncertain demand is presented. In the model, the production order releases are determined based on the information feedback on the forecasted demand, work-in-process discrepancy and inventory discrepancy. Stability conditions are obtained in terms of the control parameters that manage the rate at which the above dis...

-In this paper, an attempt has been made to establish a market mechanism for primary and secondary frequency regulation services in the restructured power system environment. The concept of elasticity of offer price and elasticity of offer quantity has been proposed. Such a design of offer structure helps the providers to respond to the system requirements based on the market price variations i...

The General Packet Radio Service (GPRS) system provides packet switched data service with quality of service (QoS) over a GSM infrastructure. In order to cope with the QoS requirements, packet scheduling strategies are used. On the other hand, GPRS introduces four coding schemes with different degrees of data protection according to the radio channel conditions. Then, the selection of appropria...

With more and more web services appearing on the web, web service’s discovery mechanism becomes essential. UDDI is an online registry standard to facilitate the discovery of business partners and services. Service requesters can choose good performance web services by manual test and comparison. However, this method of choosing is inefficient and costly in terms of time and money. The ability t...

Quality-of-experience (QoE) produces the blue print of human perception, feelings, needs and intentions, while Quality-of-Service (QoS) is a technology centric metric used to assess the performance of a multimedia services and/or network. .It is quite important for service/content providers to understand user/customer experience requirements in order to improve the service quality or the conten...

Distributed Denial of Service (DDoS) attack is one of the greatest threats to connectivity, continuity, and availability of the Internet. In this paper, two typical types of DDoS attacks, high-rate (Flood) and low-rate (Shrew), are studied on their generation principles, mechanism utilizations, behaviors, signatures, and attack performances. Experiment results show that: (I) high-rate DDoS send...

In this paper we propose the outline of a service based architecture for bringing assessment techniques to open e-learning environments. We first describe a use case scenario for a generic assessment framework offering personalized assessment generation and then present its basic architecture as part of the Personal Reader Framework. The generic assessment framework enables the search for the a...

In this research, computer simulation is used for Electronic Manufacturing Service (EMS) plant layout analysis. The current layout of this manufacturing plant is a process layout, which is not suitable due to the nature of an EMS that has high-volume and high-variety environment. Moreover, quick response and high flexibility are also needed. Then, cellular manufacturing layout design was determ...