Orbit Prediction
Mostrando 1-4 de 4 artigos, teses e dissertações.
-
1. Thermal Analysis of Satellite Libertad 2: a Guide to CubeSat Temperature Prediction
ABSTRACT: We present a model for predicting the temperature of three-unit CubeSat on a low Earth orbit, which supposes a single temperature common to all satellite components. Our exposition includes a detailed, to a large extent analytical, computation of the external heat fluxes for a particular orbit and spacecraft assumptions based on the features forese
J. Aerosp. Technol. Manag.. Publicado em: 08/11/2018
-
2. Propagação de incertezas na navegação de veículos aeroespaciais visando minimizar o risco de colisão / Propagation of uncertainties in the navigation of aerospace vehicles to minimize or maximize the collision risk
Neste trabalho realizou-se o estudo de diversas idéias relacionadas ao problema do cálculo de probabilidade de colisão de satélites. Com base nessas idéias, foi realizada a simulação de métodos para propagação de incertezas na navegação de veículos aeroespaciais e determinação de risco de colisões, visando sua minimização ou maximização.
Publicado em: 2008
-
3. Novos desenvolvimentos e aplicaÃÃes de mÃtodos de quÃmica quÃntica para compostos de coordenaÃÃo com Ãons lantanÃdeos
Theoretical studies on lanthanide compounds were performed, and divided into three parts: (i) generalization of the Linderberg-Seamans equations for an s-p-d-f basis set; (ii) study of the ligand-to-lanthanide ion charge transfer transitions (LMCT) with the ZINDO98 program using the INDO/S semiempirical hamiltonian and (iii) a study of point charge and charg
Publicado em: 2003
-
4. Prediction of enophthalmos by computed tomography after 'blow out' orbital fracture.
In 11 patients with blow out fracture of the orbit, measurement of orbital volume using computed tomography (CT) more than 20 days after injury correlated well with enophthalmos measured from the same scans (r = 0.87, p < 0.001, SEE 0.63 mm), with a 1 cm3 increase in orbital volume causing 0.8 mm of enophthalmos. This confirms the cause of enophthalmos after