Trajectory Measurements
Mostrando 1-12 de 18 artigos, teses e dissertações.
-
1. A deflexão gravitacional da luz: De Newton a Einstein
Resumo A comprovação do encurvamento da luz devido a efeitos gravitacionais constitui um importante marco na história da ciência, porque as medidas da deflexão da luz nas observações astronômicas durante o eclipse de 1919 confirmaram o valor previsto pela teoria da relatividade geral de Einstein, concluída em 1915. O fato teve uma repercussão extra
Rev. Bras. Ensino Fís.. Publicado em: 13/12/2019
-
2. MEASUREMENT AND ANALYSIS OF A FIELD AREA BASED ON AN ADAPTIVE KALMAN FILTER
ABSTRACT: This paper proposed the use of an adaptive Kalman filter (AFK) to improve Global Positioning System (GPS) positioning accuracy to measure a tractor operational area. First, we used MATLAB to identify the operation trajectory. Then, we used different colors to show the area of operation. Finally, we used an image-processing method to calculate the e
Eng. Agríc.. Publicado em: 2017-09
-
3. Relative Motion Guidance, Navigation and Control for Autonomous Orbital Rendezvous
ABSTRACT: In this paper, the dynamics of the relative motion problem in a perturbed orbital environment are exploited based on Gauss' variational equations. The relative coordinate frame (Hill frame) is studied to describe the relative motion. A linear high fidelity model is developed to describe the relative motion. This model takes into account primary gra
J. Aerosp. Technol. Manag.. Publicado em: 2014-09
-
4. Estudo de traços de fissão em vidro utilizando-se microscopias de força atomica e eletronica de varredura : inferencia da estrutura de traços latentes a partir de traços atacados / Glass fission track analysis by AFM and SEM : inferring latent track structure trough etched tracks
A study on the geometric evolution of 235U induced fission tracks in a soda-lime glass was made. It was necessary to know about the geometric model for structure evolution of fission tracks in isotropic materials. This model is based on the competition of two chemical etching rates: one in the bulk material (VB) and another in each fragment trajectory (VT).
Publicado em: 2008
-
5. Navegação através de um sistema integrado GPS/INS baseado em IMU não-giroscópica / Integrated GPS/INS navigation system based on gyroscope free IMU
The present work has the objective of analyzing the performance of a low cost strapdown inertial navigation system (INS), based on a gyroscope free inertial measurement unit (IMU) that only uses multiples accelerometers and is aided by a GPS receptor data. The availability of low cost, size and weight accelerometers with medium performance and more robustnes
Publicado em: 2005
-
6. THE DEVELOPMENT AND EXPERIMENTAL TESTING OF A FUZZY CONTROL SYSTEM FOR BATCH DISTILLATION
The present work describes the development and implementation of fuzzy control algorithms in order to control on-line the overhead product composition of a batch distillation column. Firstly, the influence of design parameters was evaluated through computational simulations and then the algorithms were experimentally tested by monitoring a pilot column. Bina
Brazilian Journal of Chemical Engineering. Publicado em: 2002-03
-
7. A trajetoria da educação fisica nas primeiras series do ensino fundamental na rede publica do Estado de São Paulo : entre o proposto e o alcançado
This study had as a general objective better understand Physical Education in schools, by observing its trajectory in the first grades of Primary Instruction in public schools of the state of SP. That trajectory basically approached Physical Education, however, an analysis of the context was necessary to consider a wider whole of arrangements which were done
Publicado em: 2002
-
8. Desenvolvimento e implementação de controladores nebulosos em uma coluna piloto de destilação em batelada
This work is concerned in the application of fuzzy logic in chemical process control. Fuzzy controllers development and implementation were described and applied to a binary system batch distillation. Algorithms of fuzzy control that are similar to conventional P, PI, PID controllers were developed and implemented in FORTRAN. First of all, algorithms were te
Publicado em: 1999
-
9. Comparação da circulação obtida através da trajetória de uma bóia de deriva rastreada por satélite e de dados hidrográficos no Estreito de Bransfield / Comparison of circulation obtained through the trajectory of a drifting buoy tracked by satellite and hydrographic data in the Bransfield Strait
Uma bóia oceanográfica de deriva desenvolvida pelo INPE e posicionada pelo Sistema ARGOS, através da utilização dos satélites NOAA-6 e NOAA-9 foi lançada no dia 10 de março de 1986, no Estreito de Bransfield na posição 63°07, 13 S, 60°07, 90 W. A bóia de deriva permaneceu na área até o dia 14 de março de 1986, quando foi recolhida pelo Navio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/02/1989
-
10. Correlation between velocity measurements from Doppler echocardiography and from M-mode contrast echocardiography.
The slope of an individual contrast trajectory on M-mode contrast echocardiography represents a physiological variable similar to that measured by Doppler echocardiography: the projection of the intracardiac velocity vector in the direction of the sound beam. To test the hypothesis that M-mode contrast echocardiography slope measurement can yield information
-
11. Single-particle tracking: the distribution of diffusion coefficients.
In single-particle tracking experiments, the diffusion coefficient D may be measured from the trajectory of an individual particle in the cell membrane. The statistical distribution of single-trajectory diffusion coefficients is examined by Monte Carlo calculations. The width of this distribution may be useful as a measure of the heterogeneity of the membran
-
12. Domain-elongation NMR spectroscopy yields new insights into RNA dynamics and adaptive recognition
By simplifying the interpretation of nuclear magnetic resonance spin relaxation and residual dipolar couplings data, recent developments involving the elongation of RNA helices are providing new atomic insights into the dynamical properties that allow RNA structures to change functionally and adaptively. Domain elongation, in concert with spin relaxation mea
Cold Spring Harbor Laboratory Press.