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Perturbations on the antidiagonals of Hankel matrices
(2013-08-12)
Given a strongly regular Hankel matrix, and its associated sequence of moments which defines a quasi-definite moment linear functional, we study the perturbation of a fixed moment, i.e., a perturbation of one antidiagonal ...
Chain recurrence and average shadowing in dynamics
(2021-01-01)
We investigate several notions related to pseudotrajectories, including chain recurrence and shadowing properties, for a special class of diffeomorphisms on euclidean spheres, known as spherical linear transformations, and ...
Transformed generalized linear models
(ELSEVIER SCIENCE BV, 2009)
The estimation of data transformation is very useful to yield response variables satisfying closely a normal linear model, Generalized linear models enable the fitting of models to a wide range of data types. These models ...
Modelos de predição para sobrevivência de plantas de Eucalyptus grandis
(Editora da Universidade Federal de Lavras, 2009)
Objetivou-se com este trabalho comparar modelos de predição de plantas sobreviventes de Eucalyptus grandis. Utilizaram-se os seguintes modelos: modelo linear misto com os dados transformados, utilizando-se as transformações ...
VAr planning using genetic algorithm and linear programming
(2001-05-01)
A combined methodology consisting of successive linear programming (SLP) and a simple genetic algorithm (SGA) solves the reactive planning problem. The problem is divided into operating and planning subproblems; the operating ...
The influence of harmonics from non-linear loads in the measuring transformers of electrical substations
(2006-04-01)
The mainstreams of research papers developed to analysis of electrical systems power quality for non-linear loads are conducted for low voltage feed. This, if in one hand have furnished important results about the performance ...
Transient heat diffusion problems with variable thermal properties solved by generalized integral transform technique
(2014-01-01)
In this work, studies of two-dimensional transient heat diffusion problems in domains of rectangular and elliptical geometries, submitted to boundary conditions of first kind, were carried out. For the problem formulation, ...