Πλοήγηση ανά Θέμα "Computer simulation"
Αποτελέσματα 1-20 από 72
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Adaptive schemes for distributed web caching
(2005)In distributed web caching architectures, institutional proxies take advantage of their neighbors' contents in order to reduce the number of requests forwarded to the server. Intuitively, the maximum benefit from this ... -
An analytical study of network coding in the presence of real-time messages
(2010)With network coding, two data packets are transformed into one by a simple XOR-operation. The transformed packet is transmitted and each original packet can be retrieved at its destination node through a similar XOR-operation. ... -
Artificial neural networks modeling of surface finish in electro-discharge machining of tool steels
(2006)Electro-Discharge machining (EDM) is a thermal process with a complex metal removal mechanism that involves the formation of a plasma channel between the tool and the workpiece electrodes and the melting and evaporation ... -
Bayesian uncertainty quantification and propagation in molecular dynamics simulations
(2012)A comprehensive Bayesian probabilistic framework is developed for quantifying and calibrating the uncertainties in the parameters of the models (e.g. force-field potentials) involved in molecular dynamics (MD) simulations ... -
Bending deformation capacity of large-diameter spiral-welded tubes
(2014)Numerical simulations are conducted to define the bending deformation capacity of large-diameter spiral-welded tubes, towards efficient strain-based design. Under bending loading, the principal failure mode of those tubes ... -
Can genetic algorithms improve trading decisions in financial markets?
(2005)Over the last years, trading systems are widely used for market assessment however parameter optimization of these systems has adopted little concern. This paper, paper provides an answer to the question Can Genetic ... -
Collaborative migration, coupling and simulation of water resources models through OpenMI
(2010)The present study describes the migration and coupling of a monthly conceptual rainfall runoff model named UTHBAL and a water reservoir operation model called UTHRL into the OpenMI standard. The models have been introduced ... -
Comparison of ARIMA and Transfer Function (TF) models in Water Temperature simulation in dam - Lake Thesaurus, eastern Macedonia, Greece
(2010)In the present work, two modelling and forecasting techniques were evaluated on the basis of: a) their efficiency to forecast and b) their ability to utilize auxiliary environmental information: ARIMA and Transfer Function ... -
Cooperative handoff in wireless networks
(2008)In 802.11-based wireless networks the stations (STAs) are associated with the available access points (APs) and communicate through them. In traditional handoff schemes the STAs get information about the active APs in their ... -
Crane load swing suppression control
(2006)The paper examines problems of an anti-sway system for crane control. The crane is modelled and simulated; anti-sway control results are presented and suggestions for further work are made. -
Detailed simulations of propellant slumping in the titanIV SRMU PQM-1
(2006)We utilize our tightly-coupled fluid/structure/combustion solid propellent rocket simulation package ("Rocstar") to study the unexpectedly large deformation of propellant at the center joint slot in a prequalification ... -
Direct ethanol fuel cell anode simulation model
(2006)The electrochemical behavior of a direct ethanol feed proton exchange membrane fuel cell (DEFC) operating under steady-state isothermal conditions at 1 atm at both anode and cathode sides is considered. A mathematical model ... -
Dishonest reporting in queue-based cross-layer network optimization
(2012)Queue-based cross-layer optimization algorithms have recently been a subject of intensive research in wireless networks. Their purpose is to guarantee stable operation and to achieve some form of fairness among users, ... -
Distributed cache management in information-centric networks
(2013)The main promise of current research efforts in the area of Information-Centric Networking (ICN) architectures is to optimize the dissemination of information within transient communication relationships of endpoints. ... -
DSMC simulation of pressure driven binary rarefied gas flows through short microtubes
(2011)Binary gas flows driven by pressure gradient through short microtubes are studied by using an upgraded version of the Direct Simulation Monte Carlo (DSMC) method. Two types of mixtures, He/Xe and Ne/Ar, are examined. Several ... -
Dynamic cross-layer association in 802.11-based mesh networks
(2007)In IEEE 802.11-based wireless mesh networks a user is associated with an access point (AP) in order to communicate and be part of the overall network. The association mechanism specified by the IEEE 802.11 standard does ... -
Dynamic virtual machine allocation in cloud server facility systems with renewable energy sources
(2013)This paper explores the problem of virtual machine (VM) allocation in a network of cloud server facilities which are deployed in different geographical areas. Each cloud server facility is connected to the conventional ... -
Effect of yield surface shape on the simulated elasto-plastic response of cohesive soils
(2010)This paper presents a discussion on the effect of the selected yield surface shape on the simulated drained and undrained response of cohesive soils. The discussion is made possible by sequentially implementing two different ... -
Enabling sensing and mobility on wireless testbeds
(2012)The inherent inability of simulation models to adequately express factors such as wireless signal propagation etc., can lead to incomplete evaluation of wireless protocols and applications. Thus, testing of proposed schemes ... -
End-to-end bandwidth guarantees through fair local spectrum share in wireless ad-hoc networks
(2003)Sharing the locally common spectrum among the links of the same vicinity is a fundamental problem in wire-less ad-hoc networks. Lately some scheduling approaches have been proposed that guarantee fair share of the bandwidth ...