Coordinate Table
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Development of methodology for measurements of residual stresses in welded joint based on displacement of points in a coordinated table
Residual stresses in a welded joint of ASTM A131 grade AH32 steel was measured either by the X-ray diffraction or by displacements of referenced points measured on a coordinate measuring machine before and after heat treatment. For all tests, the welding was performed with Shielded Metal Arc Welding, vertical-up position, by a certified welder. After welding
Mat. Res.. Publicado em: 22/01/2013
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2. Estudo de distorções em soldagem com uso de técnicas numéricas e de otimização / Study of distortion in welding by using numerical and optimization techniques
The occurrence of distortions of structures is common during welding. Such distortions are more severe in the case of large structures, such as shipbuilding. Since distortions can increase manufacturing costs and time during shipbuilding, a thorough study of causes and consequences of distortions is necessary. Therefore, this work aims to study the distortio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/06/2012
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3. Controlador Fuzzy aplicado a um sistema de controle de posição acionador por motores de indução trifásicos / Fuzzy controller applied to a position control system powered by tree-phases induction motors.
This work presents the project of fuzzy controllers for a X-Y coordinate table with two degrees of freedom. Both bases of the table moves horizontally, powered by tree-phases induction motors operated by frequency inverts. For detection position of bases, optical encoders were engaged to the axes of the engines to be obtained the angular displacement. A data
Publicado em: 2010
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4. Evaluation of dental enamel before and after fixing and removal of orthodontic brackets ortodônticos / Avaliação do esmalte dentário antes e após a colagem e descolagem de braquetes ortodônticos
The objective of this study was to evaluate the quantity of residual resin after removal of brackets and the loss and//or wear-and-tear of enamel occurring during the phases of fixing, detaching and removal of remnant resin in the bracket area and its adjacent. The sample was made up of 150 premolars, divided into two groups in accordance with the type of br
Publicado em: 2009
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5. COMPARAÇÃO ENTRE CONTROLES LOOK-AND-MOVE E SERVO-VISUAL UTILIZANDO TRANSFORMADAS SIFT EM MANIPULADORES DO TIPO EYE-IN-HAND / COMPARISON BETWEEN LOOK-AND-MOVE AND VISUAL SERVO CONTROL USING SIFT TRANSFORMS IN EYE-IN-HAND MANIPULATOR SYSTEMS
Computer vision can be used to calibrate and self-localize robots. There are many applications in self-localization and control applied to industrial manipulators and mobile robots. In particular, visual control can be useful in submarine interventions, where a robotic manipulator is mounted on a Remote Operated Vehicle (ROV) to execute tasks at high depths,
Publicado em: 2009
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6. Accurate Gaussian basis sets for the ground state of the CS molecule
Sequences of increasing size atom centered basis sets of Gaussian-type functions for the ground state of the CS molecule are generated with the molecular improved generator coordinate Hartree-Fock (HF) method. At the HF level, total and orbital energies and electric dipole moment and, at the second-order Mphiller-Plesset (MP2) level, correlation and dissocia
Brazilian Journal of Physics. Publicado em: 2005-12
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7. Área profissional e processo da tomada de consciência: análise microgenética do jogo torre de Hanói
This research investigated, with a microgenetics approach, the influence of two professional areas in the process of conscience building of the strategies and the procedures utilized by university students in the resolution of a problem contained in a game of rules. Participated in the study fifteen civil engineering students and fifteen psychology students.
Publicado em: 2004
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8. CMM touch trigger performance verification using a probe test apparatus
A probe test device has been developed to assess CMM touch trigger probe errors. A precise single axis translational table triggers the probe through the use of gauge blocks fixed to the table carriage. The position of the carriage is monitored by a laser interferometer. The gauge block surface is brought into contact with the probe ball tip until the probe
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2003-04
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9. Desenvolvimento de classificadores de máxima verossimilhança e ICM para imagens SAR / Development of maximum likelihood and ICM classifiers for SAR images
The purpose of this study is to implement, test and apply a Maximurn Likelihood Classifier (MLC) and a userfriendly contextual Markovian classifier, which use the distributions most appropriate to the Synthethic Aperture Radar (SAR) data. This study presents the main distributions to the SAR data and how several of these distributions arise from the multipli
Publicado em: 1996
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10. Tridimensional reconstruction method for posture evaluation / Metodo de reconstrução tridimensional para avaliação postural
This paper aims at presenting a method for quantitative and tridimensional analysis of the spinal column in a static position. The method utilizes stereoscopic photographic registers, image measurement in digitalized table and data analysis using software developed in order to accelerate the reconstruction procedures and supply quantitative results in the fo
Publicado em: 1993
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11. Clusters of charged residues in protein three-dimensional structures.
Statistically significant charge clusters (basic, acidic, or of mixed charge) in tertiary protein structures are identified by new methods from a large representative collection of protein structures. About 10% of protein structures show at least one charge cluster, mostly of mixed type involving about equally anionic and cationic residues. Positive charge c