Browsing by Subject "Mathematics, Applied"
Now showing items 120 of 57

Acceleration schemes of the discrete velocity method: Gaseous flows in rectangular microchannels
(2003)The convergence rate of the discrete velocity method (DVM), which has been applied extensively in the area of rarefied gas dynamics, is studied via a Fourier stability analysis. The spectral radius of the continuum form ... 
Analysis of an interface relaxation method for composite elliptic differential equations
(2009)The theoretical analysis on both the continuous (differential) and the discrete (linear algebra) levels of an interface relaxation method for solving elliptic differential equations is presented. The convergence of the ... 
Analytical lattice Boltzmann solutions for thermal flow problems
(2003)Analytical solutions based on two 13bit (hexagonal and square) and one 17bit square lattice Boltzmann BGK models have been obtained for the Couette flow, with a temperature gradient at the boundaries. The analytical ... 
An analytical solution of the Smodel kinetic equations
(2003)An analytical variation of the discrete ordinates method is used to establish a concise and accurate solution to the plane Poiseuille and thermal creep problems based on the Smodel kinetic equations. The results are of ... 
Analyzing and visualizing the synergistic impact mechanisms of climate change related costs
(2014)One climate related phenomenon could affect many more. The direct costs associated to climate related factors pass to a number of other climate related costs through the indirect economic consequences of climate change. ... 
The application of complex network time series analysis in turbulent heated jets
(2014)In the present study, we applied the methodology of the complex networkbased time series analysis to experimental temperature time series from a vertical turbulent heated jet. More specifically, we approach the hydrodynamic ... 
Applications of singularvalue decomposition (SVD)
(2004)Let A be an m x n matrix with m greater than or equal to n. Then one form of the singularvalue decomposition of A is A = UT SigmaV, where U and V are orthogonal and Sigma is square diagonal. That is, UUT = Irank(A), VVT ... 
CDNsim: A Simulation Tool for Content Distribution Networks
(2010)Content distribution networks (CDNs) have gained considerable attention in the past few years. Hence there is need for developing frameworks for carrying out CDN simulations. In this article we present a modeling and ... 
Comparative calculation of irrigation networks using Labye's method, the linear programming method and a simplified nonlinear method
(2010)The designating factors in the design of branched irrigation networks are the cost of pipes and the cost of pumping. They both depend directly on the hydraulic pump head. It is mandatory for this reason to calculate the ... 
Complex Dynamics in Nonlinear Real Estate Models
(2013)In the present paper we study the complex dynamics of nonlinear cobweb models of real estate markets in discrete time. Our model incorporates two submarkets, land and housing, interacting with each other. We start by ... 
Conditional symmetries and the canonical quantization of constrained minisuperspace actions: The Schwarzschild case
(2013)A conditional symmetry is defined, in the phase space of a quadratic in velocities constrained action, as a simultaneous. conformal symmetry of the supermetric and the superpotential. Iris proven that such a symmetry ... 
Convergences in fuzzy topological spaces
(1999)In this paper we introduce the notions of fuzzy upper limit, fuzzy lower limit and the fuzzy continuous convergence on the set of fuzzy continuous functions. In examining these aforementioned notions in the present paper ... 
Deterministic symmetric rendezvous with tokens in a synchronous torus
(2011)In the rendezvous problem, the goal for two mobile agents is to meet whenever this is possible. In the rendezvous with detection problem, an additional goal for the agents is to detect the impossibility of a rendezvous ... 
A duality scheme for convex control problems with timedelay
(1998)In this paper we examine convex optimal control problems with linear dynamics. Timedelays appear in the convex cost and in the linear dynamics. We consider problems where a delay parameter tau appears in the dynamics and ... 
Emergency Connectivity in Adhoc Networks with Selfish Nodes
(2014)Inspired by the CONFIDANT protocol (Buchegger and Boudec in Proceedings of the 3rd ACM International Symposium on Mobile Ad Hoc Networking & Computing, pp. 226236, 2002), we define and study a basic reputationbased ... 
Examining the Chaotic Behavior in Dynamical Systems by Means of the 01 Test
(2012)z We perform the stability analysis and we study the chaotic behavior of dynamical systems, which depict the 3particle Toda lattice truncations through the lens of the 01 test, proposed by Gottwald and Melbourne. We prove ... 
Finite element simulations of window Josephson junctions
(2012)This paper deals with the numerical simulation of the steady state two dimensional window Josephson junctions by finite element method. The model is represented by a sineGordon type composite PDE problem. Convergence and ... 
Fluid ordering effects and density variations in nanochannel flows: a quasicontinuum theory
(2014)A quasicontinuum selfdiffusion theory that can capture the fluid ordering effects and density variations predicted by nonequilibrium molecular dynamics in nanochannel flows is presented. The physics of the problem suggests ...