Three Axis Stabilization
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Research of the Photoelectric Tracking and Pointing Platform Based on the Servo Control System
ABSTRACT: To improve the speed and accuracy of the photoelectric tracking and pointing platform stable tracking, we took the three-axis photoelectric tracking platform, of which the coupling among the rings is ignored, as the research object. Considering the effects of various disturbances, the stable tracking double closed-loop servo control system was buil
J. Aerosp. Technol. Manag.. Publicado em: 18/03/2019
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2. Axis screws: results and complications of a large case series
RESUMO OBJETIVO: Apresentar os resultados cirúrgicos de pacientes submetidos à instrumentação com parafusos do áxis, discutindo nuances cirúrgicas e complicações das técnicas utilizadas. MÉTODOS: Série retrospectiva de pacientes submetidos à instrumentação do áxis utilizando parafusos. RESULTADOS: Sessenta e cinco pacientes foram incluídos
Rev. Assoc. Med. Bras.. Publicado em: 2019-02
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3. Emulação e co-simulação do sistema de controle de atitude da PMM e do sistema eletro-hidráulico de uma aeronave usando FPGAs / Emulation and co-simulation of PMM attitude control system and aircraft electro-hydraulic system using FPGAs
This work addresses the different development processes that leads to the implementation of simulation and control algorithms into a FPGA. As case study two applications were selected: first, the three axis stabilization of an artificial satelite with fine pointing, in its Nominal operational mode; and second, the position control loop of an electro-hydrauli
Publicado em: 2009
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4. Projeto e simulação de um controle discreto para a plataforma multi-missão e sua migração para um sistema operacional de tempo real / Design and simulation of a discrete controller for the multi-mission platform and its migration to a real time operational system
This work uses the concepts of visual modeling, automatic code generation and code migration to real time operational systems. As a study case, a three axis stabilized artificial satellite with fine pointing was used, in its nominal operational mode. The dominance of this kind of technology will make it possible to Brazil, through the National Institute of S
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2006
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5. Projeto e simulação de um controle discreto para a plataforma multi-missão e sua migração para um sistema operacional de tempo real / Design and simulation of a discrete controller for the multi-mission platform and its migration to a real time operational system
This work uses the concepts of visual modeling, automatic code generation and code migration to real time operational systems. As a study case, a three axis stabilized artificial satellite with fine pointing was used, in its nominal operational mode. The dominance of this kind of technology will make it possible to Brazil, through the National Institute of S
Publicado em: 2006
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6. Estudo comparativo de técnicas de controle de atitude em três eixos para satélites artificiais / Comparative study of three axes attitude control techniques for artificial satellites
Neste trabalho propõe-se um estudo sobre técnicas de controle de atitude para satélites estabilizados em três eixos e, através da modelagem e simulação computacional, analisar, comparar e fazer um estudo de alternativas/viabilidade de sistemas de controle de atitude (ACS) em três eixos, com base nos requisitos de missões espaciais. Para o estudo de
Publicado em: 2005
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7. Actin Localization during Fucus Embryogenesis.
Embryogenesis in the Fucales serves as a model system for studying the acquisition of cellular and developmental polarity. Fertilized eggs bear no asymmetry, yet within 16 hours, a developmental axis is formed and the unicellular zygote germinates in accordance with this axis. Microfilaments (actin) play a crucial role in establishing the axis as evidenced b
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8. Direct tRNA-protein interactions in ribosomal complexes.
Nucleotide residues in E. coli tRNA(Phe) interacting directly with proteins in pre- and posttranslocated ribosomal complexes have been identified by UV-induced cross-linking. In the tRNA(Phe) molecule located in the Ab-site (pretranslocated complex) residues A9, G18, A26 and U59 are cross-linked with proteins S10, L27, S7 and L2, respectively. In tRNA(Phe) l
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9. Dissecting the roles of VP0 cleavage and RNA packaging in picornavirus capsid stabilization: the structure of empty capsids of foot-and-mouth disease virus.
Empty capsids of foot-and-mouth disease virus (FMDV) type A22 Iraq 24/64, whose structure has been solved by X-ray crystallography, are unusual for picornaviruses since they contain VP2 and VP4, the cleavage products of the protein precursor VP0. Both the N terminus of VP1 and the C terminus of VP4, which pack together close to the icosahedral threefold symm
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10. Calcaneocuboid joint and stability of the longitudinal arch of the foot at high and low gear push off.
The calcaneocuboid joint was studied in ligamentous specimens of ten human feet, and in skeletons of two gorillas (Gorilla gorilla beringei), six chimpanzees (Pan troglodytes), three orangutans (Pongo pygmaeus) and 25 human feet. The movement of the transverse tarsal joint was further studied in a living foot on a walk-way with a glass plate inserted, and wi