Now showing items 1-10 of 1711
Using state-space techniques to represent frequency dependent single-phase lines directly in time domain
This paper proposes to use a state-space technique to represent a frequency dependent line for simulating electromagnetic transients directly in time domain. The distributed nature of the line is represented by a multiple ...
Discrete generator coordinate: Symmetry restoration in finite-dimensional spaces
Group theoretical-based techniques and fundamental results from number theory are used in order to allow for the construction of exact projectors in finite-dimensional spaces. These operators are shown to make use only of ...
A reduced order state space model for aeroelastic analysis in time domain
The objective of this paper is to describe a new method for modeling aeroelastic system in time domain based on a modification of the Laguerre Polynomials to represent complex quantities. These polynomials are used to ...
The use of Gramian matrices for aeroelastic stability analysis
Most of the established procedures for analysis of aeroelastic flutter in the development of aircraft are based on frequency domain methods. Proposing new methodologies in this field is always a challenge, because the new ...
Modeling and joint estimation of glottal source and vocal tract filter by state-space methods
Accurate estimation of the glottal source from a voiced sound is a difficult blind separation problem in speech signal processing. In this work, state-space methods are investigated to enhance the joint estimation of the ...
Improved method for the calculation of power systems low voltage solutions
(Elsevier Sci LtdOxfordInglaterra, 2002)
Bethe-Salpeter bound-state structure in Minkowski space
(Elsevier B.V., 2016-08-10)
The quantitative investigation of the scalar Bethe-Salpeter equation in Minkowski space, within the ladder-approximation framework, is extended to include the excited states. This study has been carried out for an interacting ...