In many digital image-processingapplications, which are implementedin field programmable gate arrays,the currently processed image's frames stored in external dynamic memory.The performance of such an application dependson the memoryspeed and necessaryrequests quantity during algorithm’sruntime. This is being optimized through arrays -implemented buffer memory usage.But there no common method f...

We motivate and present a definition of optimal buffering for streaming evaluation of XPath queries. We consider a large fragment of XPath that includes multiple (correlated) subqueries and reverse (up the document tree) axes. We describe a method for XPath evaluation with optimal buffering. We present the results of an experimental evaluation of our methods based on our implementation, which i...

The authors study the different buffering techniques used in the literature to solve the contention problem in asynchronous transfer mode (ATM) switching architectures. The objective of this study is to determine the buffer requirements needed to achieve a given quality of service (e.g., a given cell loss probability). On the basis of this study, the authors propose a combined central and outpu...

Recent techniques for multicast or broadcast delivery of streaming media can provide immediate service to each client request yet achieve considerable client stream sharing (i.e., server and network bandwidth savings). This paper considers (1) the maximum savings in the required server (disk I/O and network) bandwidth that any such technique can provide, (2) the interplay between achievable red...

BACKGROUND Human immunodeficiency virus (HIV) causes severe immunosuppression due to progressive decrease in the CD4 T lymphocyte cells during the course of the disease and this affects all the body systems including glandular secretions. A number of lesions affecting the salivary glands have been noted in HIV infection. The objective of this study was to evaluate the salivary pH and the buffer...

Feedback regulation in biochemical systems is fundamental to homeostasis, with failure causing disease or death. Recent work has found that cooperation between feedback and buffering—the use of reservoirs of molecules to maintain molecular concentrations—is often critical for biochemical regulation, and that buffering can act as a derivative or lead controller. However, buffering differs from d...

Objectives There are inconsistent data about the association between saliva properties, dental caries, and periodontal status. In this study, we tried to examine the association between dental caries and periodontal status with salivary viscosity, flow rate, pH, and buffering capacity in adults. Methods In the present cross-sectional study, 450 female teachers were randomly selected from scho...

Next generation Internet backbone node technologies are proposed that offer sophisticated QoS support including real time voice, video streaming, and VPN. The backbone network consists of small size IP + ATM nodes (Type-S) and backbone core nodes (Type-X). Type-S nodes support both ATM bearer and IP QoS services. In addition, the traffic control set between input line card buffer and output lin...