The spectra of quantum dots of different geometry (" quantum ring " , " quantum cylinder " , " spherical square-well " and " parabolic ") are studied. The stochastic variational method on correlated Gaussian basis functions and a large scale shell-model approach have been used to investigate these " artificial " atoms and their properties in magnetic field. Accurate numerical results are presen...

2 Vertex Operator Algebras 6 2.1 Notation and Conventions . . . . . . . . . . . . . . . . . . . . 6 2.2 Local Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 Axioms for a Vertex Algebra . . . . . . . . . . . . . . . . . . . 9 2.4 Heisenberg Algebra . . . . . . . . . . . . . . . . . . . . . . . . 11 2.5 Virasoro Algebra . . . . . . . . . . . . . . . . . . . . . . . . . 13 2....

In this study a new two degrees-of-freedom wake oscillator model is proposed to describe vortex-induced vibrations of elastically supported cylinders capable of moving in cross-flow and in-line directions. Total hydrodynamic force acting on the cylinder is obtained here as a sum of lift and drag forces, which are defined as being proportional to the square of the magnitude of the relative flow ...

This paper presents comparisons between flow fields for turbulent flow over square cylinder with two different angles of incidence in free stream at Reynolds number of Re = 3400. The present numerical results were obtained using a two-dimensional finite-volume code which solves governing equations. The pressure field was obtained with well known SIMPLE algorithm. The central difference scheme w...

BACKGROUND Although there have been many studies of the efficacy and safety of wavefront- guided (WF) and cross-cylinder photorefractive keratectomy (PRK), there are few studies on moderate-to-high astigmatism cases. The aim of this study was to assess and compare the efficacy of WF and cross-cylinder PRK in moderate-to-high astigmatism. METHODS In a comparative cohort, the results of two bef...