In this paper we discuss electrical manipulation of a spin an electron in quantum dot within a weak magnetic field. Approach to describing this process is based on Lewis — Riesenfeld dynamical invariants. Necessary conditions of a spin-flip process are derived.
We propose a simple algebraic method for constructing exact solutions of equations of two-dimensional hydrodynamics of an incompressible fluids.The problem reduces to consecutively solution three linear partial differential equations for a nonviscous fluid and to solving three linear partial differential equations and one first-order ordinary differential equation for a viscous fluid.
The structure of filtration flows in two-dimensional laying media is studied. The definition of positive and negative flows is giving. The relations for complex potentials in media with common boundary are receiving. There are employing for founded solutions some problems.
Presented the results of the synthesis and analysis of the system of temperature control for the camera kiln electrode products. By using Simulink held simulation of control systems with man — operator, with a parametrically оптимизируемым regulator and neuron network predictor controller. Defined indicators of the quality of the transient processes camera kiln for different variants of functioning of the system. Shows the advantage of using neural networks predictive controller for control of thermal processes.