نتایج جستجو برای: arbitrary service time

تعداد نتایج: 2217406  

Journal: :Queueing Syst. 2012
Urtzi Ayesta Onno J. Boxma Maaike Verloop

We study an M/G/1 processor sharing queue with multiple vacations. The server only takes a vacation when the system has become empty. If he finds the system still empty upon return, he takes another vacation, and so on. Successive vacations are identically distributed, with a general distribution. When the service requirements are exponentially distributed we determine the sojourn time distribu...

2006
Philippe Duchon Nicolas Hanusse Sébastien Tixeuil

We propose several self-stabilizing protocols for unidirectional, anonymous, and uniform synchronous rings of arbitrary size, where processors communicate by exchanging messages. When the size of the ring n is unknown, we better the service time by a factor of n (performing the best possible complexity for the stabilization time and the memory consumption). When the memory size is known, we pre...

Journal: :Perform. Eval. 2007
U. C. Gupta Sujit Kumar Samanta R. K. Sharma Mohan L. Chaudhry

This paper treats a discrete-time single-server finite-buffer exhaustive (singleand multiple-) vacation queueing system with discrete-time Markovian arrival process (D-MAP). The service and vacation times are generally distributed random variables and their durations are integral multiples of a slot duration. We obtain the queue-length distributions at departure, service completion, vacation te...

Journal: :journal of optimization in industrial engineering 2015
vahid reza ghezavati

in many practical distribution networks, managers face significant uncertainties in demand, local price of building facilities, transportation cost, and macro and microeconomic parameters. this paper addresses design of distribution networks in a supply chain system which optimizes the performance of distribution networks subject to required service level. this service level, which is considere...

2002
Colette Johnen

We present a self-stabilizing token circulation protocol on unidirectional anonymous rings. This protocol does not required processor identifiers, no distinguished processor (i.e. all processors perform the same algorithm). The protocol is a randomized self-stabilizing, meaning that starting from an arbitrary configuration (in response to an arbitrary perturbation modifying the memory state), i...

2002
Marcin Solarski Matthias Bossardt Thomas Becker

This paper 1 describes a holistic approach towards the deployment and runtime management of services on active network nodes taken by the FAIN project. Both the underlying service model and the architectures supporting deployment and management are component oriented. The separation of service meta-information and implementation code allows for a very flexible way of service deployment manageme...

M Janghorban, M.R Nami

In this paper, a three dimensional analysis of arbitrary straight-sided quadrilateral nanocomposite plates are investigated. The governing equations are based on three-dimensional elasticity theory which can be used for both thin and thick nanocomposite plates. Although the equations can support all the arbitrary straight-sided quadrilateral plates but as a special case, the numerical results f...

2005
Roy Williams Conrad Steenberg Julian J. Bunn

We describe the idea of a Science Gateway, an applicationspecific task wrapped as a web service, and some examples of these that are being implemented on the US TeraGrid cyberinfrastructure. We also describe HotGrid, a means of providing simple, immediate access to the Grid through one of these gateways, which we hope will broaden the use of the Grid, drawing in a wide community of users. The s...

2013
Barry S. Fagin Martin C. Carlisle

We describe the use of formal methods in the development of IRONSIDES, an implementation of DNS with superior performance to both BIND and Windows, the two most common DNS servers on the Internet. More importantly, unlike BIND and Windows, IRONSIDES is impervious to all single-packet denial of service attacks and all forms of remote code execution.

2008
Andrew Cho Paresh Deva Ewan D. Tempero

Web services have been proposed as means to provide more convenient access to computation services. An issue that still must be dealt with is what to do if there is no web service with the desired functionality. Deploying a new web service requires expertise in the relevant technologies as well as access to a web services server. In this paper we present the Java Web Service, a web service that...

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