Peer-to-Peer networks attracted a significant amount of interest because of their capacity for resource sharing and content distribution. Content distribution applications allow personal computers to function in a coordinated manner as a distributed storage medium by contributing, searching, and obtaining digital content. Searching in unstructured P2P networks is an important problem, which has...

Most computer systems today are lightly loaded in normal operation. The real performance problems occur during burst times when the system becomes overloaded. We evaluate how the choice of scheduling algorithms can assist a system in maintaining stable performance while operating under transient overloads. We propose a new disk scheduling algorithm that efficiently handles overload by dynamical...

Current developments in technologies and markets stress the importance of exible and robust performance optimisation and congestion control. In intelligent networks, congestion control has traditionally taken a purely technical view and focused on protecting individual nodes from harmful overloads. We take a pro t oriented, network wide view and develop a congestion control mechanism to ensure ...

THE establishment of a fistulous tract between the aorta and the right ventricle poses critical problems in cardiopulmonary dynamics. The higher aortic pressure drives an excessive flow of blood into the right ventricle and overloads it. The increased pulmonary arterial pressure and blood flow lead to pulmonary edema and right heart failure, thereby precipitating a fulminating course and early ...

Web services, quality of service, service management The recent outages and brown-outs at several large Internet portal sites (trading, auction, etc.) and the associated loss in revenues highlight the central role that web-based services play in the E-commerce era. Unpredictable demands posed by sudden surges of requests from users on the open Internet have made it extremely difficult for web s...

We propose an integrated, energy-efficient, resource allocation framework for overcommitted clouds. The framework makes great energy savings by 1) minimizing Physical Machine (PM) overload occurrences via VM resource usage monitoring and prediction, and 2) reducing the number of active PMs via efficient VM migration and placement. Using real Google data consisting of a 29-day traces collected f...

purpose: the aim of this study was to evaluate the effect of two gingival finishing lines (90° shoulder and deep chamfer) on the marginal fitness of two types of full anatomic all-ceramic crowns; zirconia crowns (zikonzhan) and glass ceramic crowns (ips e-max cad) milled with cad/cam system. materials and methods: two dentoform teeth of left maxillary first molar were prepared with chamfer fini...