نتایج جستجو برای: multi server
تعداد نتایج: 511449 فیلتر نتایج به سال:
Many web hosting companies do not load balance their web servers. The reason is that current web server load balancing techniques are expensive. Website migration is a costeffective and simple load balancing solution for web hosting companies that host web sites whose load is small in comparison the capacity of a web server. The main objectives of website migration is to reduce the average late...
acoustic experimental data of irib (islamic republic of iran broadcasting) server room was taken to measure the acoustic noise characteristics of frequency and sound pressure level (spl). the purposes of this paper are measuring the noise pollution and its evaluation through the regulations. the measurements were taken in two stages. the first one was taken at 10 points by sound investigator 22...
Even though bidirectional, high-quality and low-latency audio systems for network performance are available, the complexity involved in setting up remote sessions needs better tools andmethods to asses and tune network parameters. We present an implementation of a system to intuitively evaluate the Quality of Service (QoS) on best effort networks. In our implementation, musicians are able to co...
Many real-world situations involve queueing systems in which customers may abandon if service does not start sufficiently quickly. We study a comprehensive model of multi-class queue scheduling accounting for customer abandonment, with the objective of minimizing the total discounted or time-average sum of linear waiting costs, completion rewards and abandonment penalties of customers in the sy...
In this paper we consider a multi-class, multi-server queueing system with non-preemptive priorities. We distinguish two groups of priority classes that consist of multiple items, each having their own arrival and service rate. We assume Poisson arrival processes and exponentially distributed service times. We derive an approximation method to estimate the steady state probabilities with an app...
In this paper a VR architecture is described that enables an easy and very scalable way to build up multi user and multi wall projection systems for distributed applications and generic VR interface integration. The approach is based on a multi server architecture and a strict separation of two layers of control of the distributed virtual environment. The 3D representation is full VRML2.0 compl...
Multi-server and multi-queue architectures are common mechanisms used in a large variety of applications (call centers, Web services, computer systems). One of the major motivations behind common queue operation strategies is to grant fair service to the jobs (customers). Such systems have been thoroughly studied by Queueing Theory from their performance (delay distribution) perspective. Howeve...
Workstation utility may be enhanced by the addition of audio and telephony functions for a number of applications, such as voice mail, multi-media documents, and computer conferencing. We outline the requirements of these applications, and present an audio server architecture employing a personal computer with a disk and speech-processing board as a server dedicated to the workstation. The func...
Recently, Tsai et al., Liao et al. and Li et al. each proposed a multi-server authentication protocol. They claimed their protocols are secure and can withstand various attacks. However, we found some security loopholes in each of their schemes, for example, both Tsai et al.’s and Liao et al.‘s schemes suffers from server spoofing attack by an insider server. Li et al.s’ suffers from the lost s...
Jack is a low-latency audio server, written for POSIX conformant operating systems such as GNU/Linux. It can connect a number of different applications to an audio device, as well as allowing them to share audio between themselves. We present a new C++ version for multiprocessor machines that aims at removing some limitations of the current design: the activation system has been changed for a d...
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