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Zobrazují se záznamy 211-220 z 955
OOFEM — an Object-oriented Simulation Tool for Advanced Modeling of Materials and Structures
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
The aim of this paper is to describe the object-oriented design of the finite element based simulation code. The overall, object-oriented structure is described, and the role of the fundamental classes is discussed. The ...
Global Optima for Size Optimization Benchmarks by Branch and Bound Principles
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
This paper searches for global optima for size optimization benchmarks utilizing a method based on branch and bound principles. The goal is to demonstrate the process for finding these global optima on the basis of two ...
The Asymptotic Properties of Turbulent Solutions to the Navier-Stokes Equations
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
In this paper we study the large time behavior of solutions to the Navier-Stokes equations. We present a brief survey of results concerning energy decay, and discuss a related phenomenon of the large time energy concentration ...
Stationary and Dynamical Solutions of the Gross-Pitaevskii Equation for a Bose-Einstein Condensate in a PT symmetric Double Well
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
We investigate the Gross-Pitaevskii equation for a Bose-Einstein condensate in a PT symmetric double-well potential by means of the time-dependent variational principle and numerically exact solutions. A one-dimensional ...
Clock Math — a System for Solving SLEs Exactly
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
In this paper, we present a GPU-accelerated hybrid system that solves ill-conditioned systems of linear equations exactly. Exactly means without rounding errors due to using integer arithmetics. First, we scale floating-point ...
Plasma–Surface Interactions Under High Heat and Particle Fluxes
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
The plasma-surface interactions expected in the divertor of a future fusion reactor are characterized by extreme heat and particle fluxes interacting with the plasma-facing surfaces. Powerful linear plasma generators are ...
Spectral Analysis of Schrödinger Operators with Unusual Semiclassical Behavior
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
In this paper we discuss several examples of Schrödinger operators describing a particle confined to a region with thin cusp-shaped ‘channels’, given either by a potential or by a Dirichlet boundary; we focus on cases when ...
Weakly Ordered A-Commutative Partial Groups of Linear Operators Densely Defined on Hilbert Space
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
The notion of a generalized effect algebra is presented as a generalization of effect algebra for an algebraic description of the structure of the set of all positive linear operators densely defined on a Hilbert space ...
The Two-dimensional Harmonic Oscillator on a Noncommutative Space with Minimal Uncertainties
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
The two dimensional set of canonical relations giving rise to minimal uncertainties previously constructed from a q-deformed oscillator algebra is further investigated. We provide a representation for this algebra in terms ...
Complex Covariance
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
According to some generalized correspondence principle the classical limit of a non-Hermitian quantum theory describing quantum degrees of freedom is expected to be the well known classical mechanics of classical degrees ...