Abstract—This paper presents new semi-analytical expressions to calculate the self-inductance and the electromagnetic force for a ferromagnetic cylinder of finite length placed inside a circular coil of rectangular cross section. The proposed analytical model is based on boundary value problems with Fourier analysis. Laplace’s and Poisson’s equations are solved in each region by using the separ...

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 ...

The source is covered by a watertight steel cylinder which is fixed inside a 0.65 m long section of ASEA-ATOM type BWR fuel channel. Inside the cylinder there is a 37 GBq Cs pellet fixed to a wagon which can be driven up and down by means of a stepping motor. By moving the source, the repeatability of the geometrical positioning is attained. The amplitude and scanning speed are controlled by a ...

The driver is for a direct injection engine with 2 to 4 cylinders. There is one injector for every cylinder. To guarantee the pressure to be constant during every single injection stroke not more than 4 concurrent injections may be performed. As a consequence, for engines with at most 4 cylinders, every cylinder may be considered independent. Therefore, we may focus on the design of the driver ...