• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 2
  • 1
  • Tagged with
  • 3
  • 3
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Nonsimilar solution of the laminar boundary layer in an oscillatory flow by an integral matrix method

Gastrock, Barry Allen. January 1969 (has links) (PDF)
Thesis (Degree of Aeronautical Engineer)--Naval Postgraduate School, June 1969. / Thesis advisor(s): Miller, James A. "June 1969." Description based on title screen as viewed on May 10, 2010. DTIC Descriptor(s): Incompressible Flow, Laminar Boundary Layer, Transformations (Mathematics), Matrices (Mathematics), Oscillation, Perturbation Theory, Taylors Series, Flow Charting, Subroutines, Computer Programs, Theses. DTIC Identifier(s): Computerized Simulation. Includes bibliographical references (p. 96-97). Also available in print.
2

Estudo de fluxo de potencia com aplicação de metodos diretos na resolução de sistemas de equações lineares / Study of power flow with application of direct methods in the resolutions of systems of linear

Costa, Emerson Chagas 02 July 2008 (has links)
Orientador: Aurelio Ribeiro Leite de Oliveira / Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Instituto de Matematica, Estatistica e Computação Cientifica / Made available in DSpace on 2018-08-10T18:21:37Z (GMT). No. of bitstreams: 1 Costa_EmersonChagas_M.pdf: 3002139 bytes, checksum: 1caa6878e65459343f93aa39d2841fa3 (MD5) Previous issue date: 2008 / Resumo: Diante de um sistema elétrico de potência brasileiro, complexo e gigantesco, o presente trabalho trata do estudo de fluxo de potência, por meio de simulação com os sistemas de 30 e 118 barras da IEEE (Institute of Electrical and Electronics Engineers) com os métodos desacoplados e utilizando os métodos diretos de decomposições de matrizes...Observação: O resumo, na íntegra, poderá ser visualizado no texto completo da tese digital / Abstract: Considering a large-scale and complex Brazil electric power system, the present work concerns the study of power flows, through simulations with the 30 and 118 bus system of the IEEE (Institute of Electrical and Electronics Engineers) applying the uncoupled methods and the direct methods of matrix decomposition...Note: The complete abstract is available with the full electronic digital thesis or dissertations / Mestrado / Sistemas de Energia Eletrica / Mestre em Matemática Aplicada
3

Um estudo sobre fatorações de matrizes e a resolução de sistemas lineares / A study on matrix factorization and the resolution of linear systems

Campos, Ludio Edson da Silva 03 July 2008 (has links)
Orientador: Maria Zoraide Martins Costa Soares / Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Instituto de Matematica, Estatistica e Computação Cientifica / Made available in DSpace on 2018-08-10T23:10:07Z (GMT). No. of bitstreams: 1 Campos_LudioEdsondaSilva_M.pdf: 1007258 bytes, checksum: 78308663e7f18b51bedeb284cadca66a (MD5) Previous issue date: 2008 / Resumo: Neste trabalho abordamos algumas fatorações de matrizes, com vistas à resolução de sistemas lineares através de métodos diretos. Enfocamos particularmente as decomposições LU, Cholesky e QR, cujo uso tem sido largamente difundido em implementações computacionais. Nosso objetivo é apresentar um texto didático, acessível a alunos de graduação, que contemple a teoria básica de cada fatoração, incluindo a demonstração dos principais resultados, e que também forneça condições para uma primeira implementação de cada decomposição. Sugerimos alguns algoritmos, que foram implementados no software livre OCTAVE, através dos quais comparamos o tempo gasto para resolução de alguns sistemas lineares, utilizando as fatorações citadas / Abstract: In this work we discuss some matrix factorizations, with a view to the resolution of linear systems through direct methods. We focus particularly the LU, Cholesky and QR decompositions, whose use has been widely spread in computer implementations. Our goal is to present a didactic text, accessible to undergraduate students, which contemplates the basic theory of each factorization, including the demonstration of the main result and that also provide conditions for a first implementation of each decomposition. We suggest some algorithms that were scheduled in the free software OCTAVE, through which we compare the time elapsed for the resolution of a few linear systems, using the factorizations cited. / Mestrado / Algebra linear / Mestre em Matemática

Page generated in 0.0901 seconds