Sun Tracking
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. A Precise Algorithm for Computing Sun Position on a Satellite
ABSTRACT: To meet the high precision sun tracking needs of a space deployable membrane solar concentrator and other equipment, an existing algorithm for accurately computing the sun position is improved. Firstly, compared with other theories, the VSOP (variation seculaires des orbits planetaires) 87 theory is selected and adopted to obtain the sun position i
J. Aerosp. Technol. Manag.. Publicado em: 26/08/2019
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2. Avaliação Precoce da Função Ventricular Direita em Pacientes com Lúpus Eritematoso Sistêmico pelo Strain e Strain Rate
Resumo Fundamento: A função ventricular direita é fator crucial do prognóstico do lúpus eritematoso sistêmico (LES). Objetivos: Avaliar a função ventricular direita em pacientes com LES e diferentes graus de hipertensão pulmonar (HP) por avaliação do strain e do strain rate. Métodos: Um total de 102 pacientes com LES e 30 voluntários sadios f
Arq. Bras. Cardiol.. Publicado em: 11/06/2018
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3. The Control of Asymmetric Rolling Missiles Based on Improved Trajectory Linearization Control Method
ABSTRACT According to motion characteristic of an asymmetric rolling missile with damage fin, a three-channel controlled model is established. The controller which is used to realize non-linear tracking and decoupling control of the roll and angle motion is introduced based on an improved trajectory linearization control method. The improved method is compos
J. Aerosp. Technol. Manag.. Publicado em: 2016-09
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4. Closed balls for interpolating quasi-polynomials
The classic interpolation problem asks for polynomials to fit a set of given data. In this paper, quasi-polynomials are considered as interpolating functions passing through a set of spatial points. Existence and uniqueness is obtained by means of generalized Vandermonde determinants. By means of several estimates related to these determinants, we are also a
Computational & Applied Mathematics. Publicado em: 2011
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5. Desenvolvimento de um protÃtipo de rastreador solar de baixo custo e sem baterias
In the last fifty years, the use of solar energy in the world has been growing considerably in its principal modalities: thermal and photovoltaic. Although there has been significant evolution of the photovoltaic technology along the last decades, the cost of the energy produced by those systems is still expensive when compared to the energy produced by conv
Publicado em: 2007
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6. Desenvolvimento de um sistema de controle de baixo custo para rastreador solar / Development of a low cost control for a solar tracker
Este trabalho apresenta o desenvolvimento, princÃpio de funcionamento e a avaliaÃÃo experimental de sistema de controle de um rastreador solar. Um gerador fotovoltaico (FV) tem o mÃximo aproveitamento quando a normal da sua superfÃcie aponta para o Sol. A funÃÃo de um rastreador solar à fazer com que isso aconteÃa com precisÃo adequada para o gerad
Publicado em: 2007
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7. Interaction of Sla2p's ANTH Domain with PtdIns(4,5)P2 Is Important for Actin-dependent Endocytic InternalizationV⃞
A variety of studies have implicated the lipid PtdIns(4,5)P2 in endocytic internalization, but how this lipid mediates its effects is not known. The AP180 N-terminal homology (ANTH) domain is a PtdIns(4,5)P2-binding module found in several proteins that participate in receptor-mediated endocytosis. One such protein is yeast Sla2p, a highly conserved actin-bi
The American Society for Cell Biology.