Now showing items 1-5 of 5
Radiating cylindrical collapse
(Physics Letters A, 1991-07-22) [Artigo]
The junction conditions for a collapsing cylindrically symmetric source described by a viscous dissipative fluid that conducts heat and produces radiation with outgoing unpolarized radiation are studied. © 1991.
Gráficos de controle X para processos robustos
(Gestão & Produção, 1998-12-01) [Artigo]
O avanço tecnológico tem tornado os processos produtivos cada vez mais robustos (robustos no sentido de produzirem itens cada vez mais iguais). Neste contexto, pequenas alterações no processo podem ser críticas, devendo ...
On the parameters of the Lewis metric for the Lewis class
(Classical and Quantum Gravity, 1995-12-01) [Artigo]
The physical and geometrical meaning of the four parameters of the Lewis metric for the Lewis class are investigated. Matching this spacetime to a completely anisotropic, rigidly rotating, fluid cylinder, we find from the ...
The Levi-Civita space-time
(Journal of Mathematical Physics, 1995-12-01) [Artigo]
Two exact solutions of Einstein's field equations corresponding to a cylinder of dust with net zero angular momentum are considered. In one of the cases, the dust distribution is homogeneous, whereas in the other, the ...
Luminescence quenching by iron in barium aluminoborate glasses
(Physical Review B, 1994-02-01) [Artigo]
The quenching of the radiative e--h+ recombination in barium aluminoborate glass, x irradiated at 77 K, was investigated by EPR and thermoluminescence (TL) techniques as a function of an iron impurity concentration ranging ...