Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Marian Negrea"'
Publikováno v:
Facta universitatis - series: Physics, Chemistry and Technology. 17:63-68
In this paper we analyze the motion of charged particles in a non-standard magnetic field that is of a Clebsch type representation where a magnetic perturbation is considered. The safety factor of ASDEX-Upgrade is used. Some aspects of the solutions
Autor:
Marian Negrea
Publikováno v:
Plasma Science and Technology. 22:015101
Publikováno v:
Physics of Plasmas. 24:112303
We study the diffusion of magnetic field lines in turbulence with magnetic shear. In the first part of the series, we developed a quasi-linear theory for this type of scenario. In this article, we employ the so-called DeCorrelation Trajectory method
Publikováno v:
Mechanical Systems and Signal Processing. 22:1216-1236
This work proposes a general scheme to detect induction motor fault by monitoring the motor current. The scheme is based on signal processing (predictive filters) and soft computing technique (fuzzy logic). The predictive filter is used in order to s
Publikováno v:
Plasma Physics and Controlled Fusion. 49:1767-1781
Anisotropy in the magnetic fluctuation spectrum (stochastic anisotropy) and magnetic shear induce variations of global averaged quantities such as the running and the asymptotic diffusion tensors that can be investigated using a semi-analytical metho
Publikováno v:
Physica Scripta. 75:1-12
The electron diffusion induced by a two-dimensional electrostatic turbulence, in a sheared slab approximation of the toroidal magnetic geometry, is studied firstly using the decorrelation trajectory method (DCT), secondly by direct numerical simulati
Numerical magnetic field analysis and signal processing for fault diagnostics of electrical machines
Publikováno v:
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering. 22:969-981
Numerical magnetic field analysis is used for predicting the performance of an induction motor and a slip‐ring generator having different faults implemented in their structure. Virtual measurement data provided by the numerical magnetic field analy
Publikováno v:
Plasma Physics and Controlled Fusion. 40:1383-1398
The aim of this paper is to calculate, in a new manner, a general expression for the anomalous particle flux due to electromagnetic turbulence, including the parallel components of the magnetic field fluctuations. The calculus of the flux uses the an
Publikováno v:
Plasma Physics and Controlled Fusion. 39:2039-2049
In this paper we study some aspects related to the spatial relative diffusion of the magnetic-field lines. The nonlinear integral equation for the Lagrangian correlation is transformed into a system of two ordinary differential equations and solved n
Particle diffusion in prescribed electrostatic turbulence and sheared space dependent magnetic field
Publikováno v:
HPCS
This study is devoted to the calculation of diffusion coefficients for a particle moving in fluctuating electrostatic field superposed to a space dependent and sheared magnetic field, using the numerical simulation.