Now showing items 1-10 of 1806
An alternative procedure to decrease the dimension of the frequency dependent modal transformation matrices: Application in three-phase transmission lines with a vertical symmetry plane
The objective of this paper is to show an alternative representation in time domain of a non-transposed three-phase transmission line decomposed in its exact modes by using two transformation matrices. The first matrix is ...
A procedure to estimate parameters of a line segment taking into account its representation through π circuits: Theoretical development
The objective of this paper is to show an alternative methodology to estimate per unit length parameters of a line segment of a transmission line. With this methodology the line segment parameters can be obtained starting ...
Patellofemoral pain syndrome: Electromyography in a frequency domain analysis
The Patellofemoral Pain Syndrome (PFPS), has a multifactorial etiology and affects approximately 7 to 15% of the population, mostly women, youth, adults and active persons. PFPS causes anterior or retropatelar pain that ...
A distributed-parameters transmission line model developed directly in the phase domain
This article shows a transmission line model developed directly in the phase domain. The proposed model is based on the relationships between the phase currents and voltages at both the sending and receiving ends of a ...
Frequency domain unsteady transonic aerodynamics for flutter and limit cycle oscillation prediction
(Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM, 2010)
The purpose of this study was to develop new approaches for predicting transonic flutter and limit cycle oscillations (LCO) using computational methods. The TSD equation is separated into the in-phase and out-of-phase ...
A frequency-domain approach to interconnect crosstalk simulation and minimization
(IX International Workshop Iberchip, 2003-03)
Comparison between frequency domain and time domain riser analysis
(ASMENEW YORK, 2012)
In the optimization or parametric analyses of risers, several configurations must be analyzed. It is laborious to perform time domain solutions for the dynamic analysis, since they are time-consuming tasks. So, frequency ...
Corona effect in frequency dependent transmission line models
The inclusion of the corona effect in a frequency dependent transmission line model is proposed in this paper. The transmission line is represented through a cascade of π circuits and the frequency dependence of the ...