Ground State Solutions
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Picosatellites for Maritime Security Applications - the Lambdasat Case
ABSTRACT: This study explores the potential deployment of small satellites for maritime interdiction and security applications by investigating the available solutions and formulating a generic proposal to optimize the use of those short-lived space assets in support of these operations. The operational background is analyzed with respect to the potential us
J. Aerosp. Technol. Manag.. Publicado em: 2015-12
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2. Failure prognosis methods and offline performance evaluation
The capability of predicting failure events of systems and components can provide benefits in equipment operation and maintenance. For this reason, the subject of failure prognosis is gaining greater attention from academia and industry over the last years. This work presents novel contributions related to the development and performance evaluation of failur
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/12/2011
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3. Resultados de existência para as equações críticas de Klein-Gordon-Maxwell
Neste trabalho analisamos a existência de soluções radialmente simétricas, soluções positivas, bem como a existência de soluções ground state para uma classe de equações do tipo Klein-Gordon-Maxwell quando a não-linearidade exibe comportamento crítico. Para as soluções positivas e do tipo ground state provamos resultados de existência quando
Publicado em: 2011
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4. The housing space in São Paulo city: design studies / O espaço de doméstico na cidade de São Paulo: um projeto arquitetônico
Though it resembles many of metropolitan cities in the world today fractured, segregated, contradictory, and rich São Paulo inherits its configuration from a number of unique factors. Its rapid growth, both economic and demographic, on a specific territory has led to such a configuration that it must be properly understood so that future interventions, inte
Publicado em: 2009
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5. Quebra de simetria de cargas em estruturas eletrônicas blindadas
In this thesis, we will study the screening phenomenon in electronic structures based on a charge symmetry breaking model. For a Thomas-Fermi potential exp(qr)=r, this theory predicts that the nuclear charge , in the ground state of the screened Hydrogen atom, is degenerated ! (; ), giving rise to a dual charge in the electron wavefunction. In this
Publicado em: 2008
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6. Soluções "ground states" para uma classe de problemas elípticos semilineares
We will consider in this work a class of semilinear problems in RN whose main characteristic is the presence of a singular term in the not linear perturbation of the operator. Combining variational techniques, arguments of the type upper and lower solutions and principle of comparison we prove a theorem, due to Zhang [49], 2007, that it establishes the exist
Publicado em: 2007
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7. Propriedades fotoquímicas e fotofísicas de novos materiais derivados quinolinas e di naftalimidas / Photochemistry and photophysical properties of new materials derivatives of quinolines and Di-naphtalimides
Excited state proto transfer reactions in aqueous media is among current themes in photochemistry research. Shortly, organic molecules having acid or basic groups and presenting excited state lifetimes long enough, competitive prototropic reactions can occur. This phenomenon is attributed to an isoelectronic state of the ground state molecule and up to seven
Publicado em: 2007
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8. Suprimento combinado de fósforo e magnésio para a produção e nutrição do capim-Tanzânia / Combined supply of phosphorus and magnesium for Tanzania grass production and mineral nutrition
Due to the potential for high yield and nutritional value, Tanzania grass stands out as an excellent option cultivar of the Panicum maximum specie to the Brazilian livestock production. It is known that this grass usually need high soil fertility. The objective was to evaluate the response of Tanzania grass to combinations of phosphorus and magnesium rates,
Publicado em: 2007
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9. Effects of varying curvature and width on the electronic states of GaAs quantum rings
Stationary states of an electron in thin GaAs elliptical quantum rings are calculated within the effective-mass approximation. The width of the ring varies smoothly along the centerline, which is an ellipse. The solutions of the Schrödinger equation with Dirichlet boundary conditions are approximated by a product of longitudinal and transversal wave functio
Brazilian Journal of Physics. Publicado em: 2006-06
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10. Implementation of statistical data assimilation system in physical space to the global model of CPTEC / Implementação do sistema estatístico de assimilação de dados em espaço físico para o modelo global do CPTEC
Atmospheric data (such as temperature, moisture, winds), collected by satellites, direct measurements from upper-air instruments and ground observation stations are used in order to estimate the state of the atmosphere as precise as possible. The estimation process, denominated data assimilation consists of observations, and the physical laws, which govern t
Publicado em: 2004
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11. Mixed valence model for superconductivity
Superconductivity often occurs in crystals with one active electron per site with charge density wave (CDW) or spin density wave (SDW) as 'mother state'. It is proposed that superconductivity is possible when the differences in equilibrium geometry and energy between the diabatic CDW and SDW states are so small that there is interaction between them via the
Brazilian Journal of Physics. Publicado em: 2003-12
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12. Nonlinear optical properties of aniline oligomers / Propriedades ópticas não-lineares de oligômeros de anilina
We report on the study of electronic optical non linearities in two aniline oligomers: dimer and the tetramer. Four tetramer concentrations were measured, pure and also 33 and 100% doped; one of dimer non doped another 100% doped. The solutions were prepared using dimethyl sulfoxide (DMSO) as solvent and the doping was performed with hydrochloric acid. The s
Publicado em: 2002