Now showing items 1-10 of 291
Asymmetrical magnetization in three-phase core type transformers
The performance of the three-phase core type transformers, under AC/DC double excitation is discussed in this work. It is presented a mathematical model that considers the mutual coupling between phases and the magnetic ...
Influence of double excitation AC/DC in the reactive power demand of 3-phase transformers
In this work it is discussed the performance of the reactive power demand in three-leg transformer core and three-phase transformer bank, under different conditions of AC/DC double excitation. In order to analyse the ...
Single Axis Controlled Hybrid Magnetic Bearing for Left Ventricular Assist Device: Hybrid Core and Closed Magnetic Circuit
In previous studies, we presented main strategies for suspending the rotor of a mixed-flow type (centrifugal and axial) ventricular assist device (VAD), originally presented by the Institute Dante Pazzanese of Cardiology ...
Electrically detected magnetic resonance modeling and fitting: An equivalent circuit approach
(American Institute of Physics (AIP), 2014-01-21)
The physics of electrically detected magnetic resonance (EDMR) quadrature spectra is investigated. An equivalent circuit model is proposed in order to retrieve crucial information in a variety of different situations. This ...
QUANTUM CIRCUITS IN THE PRESENCE OF A MAGNETIC FIELD
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2012)
Analysis of the influence of baffles and shields on the cooling of a digital transmission equipment
(Institute of Electrical and Electronics Engineers (IEEE), 1996-01-01)
In this work design criteria for cooling of electronic systems used in a digital transmission equipment are considered. An experimental study using a simulated electronic equipment in which vertically oriented circuit ...
Montagem e construção de um magnetômetro a efeito Kerr magneto-óptico
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em FísicaFísica da Matéria Condensada; Astrofísica e Cosmologia; Física da Ionosfera, 2006-03-15)
n this master s dissertation a Kerr Magneto Optic s magnetometer effect was set up to do characterization of samples type films fine and ultra thin, these samples will be grown after the implementation of the sputtering ...
Representation of transmission lines: comparison of models and parameters distributed discrete parameters
(Institute of Electrical and Electronics Engineers (IEEE), 2013-09-30)
A transmission line is characterized by the fact that its parameters are distributed along its length. This fact makes the voltages and currents along the line to behave like waves and these are described by differential ...