DSpace Repository

Browsing Mestrado em Física (Dissertações) by Issue Date

Browsing Mestrado em Física (Dissertações) by Issue Date

Sort by: Order: Results:

  • Silva, Helen; http://lattes.cnpq.br (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2006-07-31)
    Molecular studies using near threshold excitation electron impact allow to investigating several states such as weakly-bound Rydberg states of high angular momentum. Threshold electron studies also are useful to determine ...
  • Carneiro, Diego Ferreira; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4702087Z6 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2006-08-18)
    In recent years, the progress of the nanotechnology allowed the manufacture of magnetic samples with dimension in the nanometric scale, as well as the evolution of experimental techniques to measure its properties. It was ...
  • Parrot, Oscar Augusto Policeni; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4139618H3 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2007-01-09)
    In this dissertation we have made a study that confirms the research realized by Roberto Montenegro. We have investigated the interpretations used by students of Quantum Mechanics from Physics Departament of UFJF. This ...
  • Gonçalves, Bruno; http://lattes.cnpq.br (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2007-02-14)
    At the beginning of this thesis, we present a brief review of the basic elements of General Relativity, including necessary information about weak gravitational waves. The Klein-Gordon and Dirac fields will be formulated ...
  • Pires Júnior, Paulo Romildo; http://lattes.cnpq.br (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2007-02-15)
    In this dissertation we revised the canonical quantization of General Relativity, up to the derivation of the Wheeler-deWitt equation. Using that theory, we studied a cosmological model described by a closed Friedmann-Ro ...
  • Marques, Ivo de Almeida; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4732299U1 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2007-03-01)
    In the last years, the progress of the nanotechnology allowed the production of magnetic samples with dimensions in the nanometric scale, as well as the evolution of experimental techniques to measure their properties. ...
  • Sobreira, Flávia; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4732988A6 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2007-07-13)
    The Model of the Reduced Gas is a new approximation for relativistic ideal gas of massive particles. We built a state equation that is given by a simple and elementary function and, at the same time, it represents an ...
  • Guarnieri, Leandro de Castro; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4732988D9 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2007-08-15)
    In this work we present calculations of eletronic Raman cross-sections of doped GaN based system via charge - density mechanism. The studied structures were δ-doped superlattices and uniform doped GaN systems. In the case ...
  • Carmo, Alexandre Peixoto do; http://lattes.cnpq.br (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2007-11-30)
    In this work we will accomplish the optical characterization of host vitreous, doped with rare-earth ions and nanoparticles of gold, with several compositions, but maintaining as main element the tellurium. Those stencil ...
  • Assafrão, Alberto da Costa; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4744840Z3 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2008-07-18)
    In this work, we will accomplish the thermo-optical characterization of two hexagonal politypes of Silicon Carbide (SiC) using a spectroscopic technique known as Thermal Lens Spectroscopy (TLS). A brief summary of TLS ...
  • Losqui, Alberto Luiz Costa; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4210424T4 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2008-07-25)
    Total cross sections of loss and electron capture of Li2+ in Ar were measured in the range of energy from 0,5 to 3,0 MeV. The experimental data for loss are compared with theoretical calculations based in the Plane Wave ...
  • Xavier, Luciana Miranda Vieira; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4759714Y3 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2009-02-27)
    In this thesis, it will be revised the main quantization methods of constrained systems using the Dirac Hamiltonian method and Faddev-Jackiw Lagrangian techniques (without constrained), and its extension to the Barcelos ...
  • Silva, Daniel Gustavo Mesquita da; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4189621P5 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2009-04-06)
    We have measured the absolute Total Cross Section (TCS) for methanol and ethanol molecules using an apparatus manufactured at the Molecular Spectroscopy Laboratory at DF/UFJF, which employ the linear transmission ...
  • Alessio, Rita de Cássia Polito Vita; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4755273H3 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2009-06-09)
    The study of resonances through metastable states of atoms and molecules by electron impact shows spectra with well-defined structures, providing direct information on the energies of resonances formation, as well as ...
  • Marcial, Mateus Vinicius; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4744478U8 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2009-07-30)
    In this thesis, initially, we present a introductory study about constrained systems. It was based on Fadeev-Jackiw-Barcelos Neto-Wotsasek and Dirac formalisms. The former is also called symplectic formalism. The symplectic ...
  • Lima Filho, Elton Soares de; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4742188H8 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2009-08-07)
    This work presents the principles, construction and functioning of an apparatus wich measures the metabolic activity of microorganisms, in real time and from different samples simultaneously, using optical interferometry. ...
  • Silva, Geraldo Henriques; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4462453Y7 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2010-04-27)
    This work reports on the thermal diffusivity of the SiO2 — Na2CO3 — B203 —Al203 (SNAB) glass system doped with semiconductor nanocrystals of CdS and Nd3+ ions. Thermal Diffusivity (D) was obtained via the so called Thermal ...
  • Lisboa, Jakeline Duque de Moraes; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4249928D2 (Universidade Federal de Juiz de Fora (UFJF)BrasilFaculdade de Educação FísicaPrograma de Pós-graduação em Educação FísicaUFJF, 2010-04-30)
    Concerns about the body occupy a prominent place in the contemporary world. Physical exercises are in the routine of much of the population for many reasons: health, aesthetics, socialization, playfulness, and others. Gyms ...
  • Santos, José Amâncio dos; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4138840U7 (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2010-06-16)
    As is well-known, the quantum fields studied in QFT satisfy the principle of locality according to points in space-time. However, the principles of physics also admit quantum fields that satisfy a condition of locality ...
  • Souza, Daniel Oliveira de; http://lattes.cnpq.br (Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2010-08-24)
    The four fundamental forces of nature are known: the force gravitational, the electromagnetic, the weak force and strong force. The three latter aspects are governed by the so-called quantum field theory. The great interest ...