As cloud computing becomes additional and additional standard, understanding the economic science of cloud computing becomes critically necessary. To maximize the profit, a service supplier ought to perceive each charge and business prices, and the way they're determined by the characteristics of the applications and also the configuration of a multi server system. The matter of best multi serv...

The Bioinformatics Links Directory continues its collaboration with Nucleic Acids Research to collaboratively publish and compile a freely accessible, online collection of tools, databases and resource materials for bioinformatics and molecular biology research. The July 2011 Web Server issue of Nucleic Acids Research adds an additional 78 web server tools and 14 updates to the directory at htt...

A single server finite population queueing model with compulsory server vacation and with fixed batch service has been considered. For this model the system steady state probabilities are obtained. Some performance measures are calculated and numerical examples are also given.  

Parallel NFS (pNFS) extends Network File Sharing version 4 (NFSv4) to allow clients to directly access file data on the storage used by the NFSv4 server. This ability to bypass the server for data access can increase both performance and parallelism, but requires additional client functionality for data access, some of which is dependent on the class of storage used. The main pNFS operations do...

in this paper a single server queuing production system is considered which is subject to gradual deterioration. the system is discussed under two different deteriorating conditions. a planning horizon is considered and server which is a d/m/1 queuing system is gradually deteriorates through time periods. a maintenance policy is taken into account whereby the server is restored to its initial c...

The existing solutions for counteracting and preventing the interception of data tokens two-factor authentication are considered. Features that may indicate presence a silent reverse proxy server chosen. It is proposed to analyze information about additional time anomalies, which usually created by server. advantage this approach characteristics generated on client-side, malicious cannot modify...

Fractal patterns offer one way to represent the rough complexity of the natural world. Whilst they dominate many of our visual experiences in nature, little large-scale perceptual research has been done to explore how we respond aesthetically to these patterns. Previous research (Taylor et al., 2011) suggests that the fractal patterns with mid-range fractal dimensions (FDs) have universal aesth...

Widespread replication of information can ameliorate the problem of server overloading but raises the allied question of server selection. Clients may be assigned to a replica in a static manner or they may choose among replicas based on client-initiated measurements. The latter technique, called dynamic server selection (DSS), can provide signi®cantly improved response time to users when compa...

The present investigation deals with the bulk arrival M/G/1 retrial queue with impatient customers and modified vacation policy. The incoming customers join the virtual pool of customers called orbit if they find the server being busy, on vacation or in broken down state otherwise the service of the customer at the head of the batch is started by the server. The service is provided in k</em...

This paper describes an Enhanced Transputer Server Architecture (ETSA). The purpose of ETSA is to provide a more flexible and sophisticated environment for interacting with transputer systems than is provided by existing server models. ETSA is a network-based architecture that permits the user of a transputer system to be remote from that system. ETSA supports arbitrary server communication pro...