The use of ABR service on Internet backbones has been recently proposed as a means to improve statistical multiplexing and to recover the bandwidth left over by VBR traac. While this approach permits far better utilization of ATM resources than it is possible otherwise with the CBR service, full link utilization is seldom achieved. In this paper we address the reasons why the ABR ow control can...

The truck appointment system is to set the share of according service capacity terminal gate and yard bridge, so that facilities equipment container can be reasonably used; On this basis, considering situation there are no-shows in delivery process, analyzing impact different types on system. With goal minimizing cost losses, an overbooking model based optimization constructed by queuing theory...

In this paper, we consider the joint overbooking and capacity control problem over a single flight leg with multiple fare classes. The objective is to maximize the net expected revenue, which is given by the difference between the expected revenue from the accepted requests and the expected penalty cost from the denied reservations. We study a class of open loop policies that accept the request...

We propose an algorithm for measurement based CAC adjustment in ATM networks. The algorithm was derived under requirement that it is applicable to ATM switches without proprietary solutions. For this reason the algorithm is fed by simple cell loss measurements. Based on this measurements the CAC overbooking factors are updated once a day. The updates are optimized based on the history of the me...

conclusions coccygectomy is a successful treatment in patients unresponsive to conservative treatments for coccydynia. results the patients were followed up for an average of 25.7 months. the results were good in 11 patients, excellent in 1, and fair in only 1 patient. the excellent and good rates amounted to 92.2%. no major complication was seen. patients and methods between october 2010 and d...

introduction: coverage of bone grafts is very important in reconstructive surgery. in edentulous alveolar ridges this coverage is particularly important for supporting dental prostheses. here we present the case of a patient with a large deficient maxillary anterior region that was reconstructed with a bilateral palatal submucosal periosteal connective tissue flap: a soft tissue reserve for upp...

the coverage of soft- tissue defects of the hand specially volar side needs special consideration. although certain local flaps have been described and used for resurfacing the palm, extensive injury requires distant or free flaps for coverage. abdominal pedicle flap has been traditionally used for extensive hand injuries, however there is no doubt that one of the ideal tissues for resurfacing ...