1,721,212 research outputs found

    Robot de 2 DOF programado con MatLab® (guide y Peter Corke) y Arduino uno para escritura de caracteres alfabéticos

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    This document presents the interaction between a microcontroller, a computer and two servomotors for the operation of the prototype of to robotic arm with 2 degrees of freedom, applied to the writing of to 2R robot which was programmed with to low-cost microcontroller (Arduino Uno), using the servomotors for the movement of the joints of the 2R robot. In addition, the work area of the 2R robot es presented, using peter Corke\u27s robotics toolbox in MATLAB, the connections in the circuit with the microcontroller and the other electronic components that work simultaneously with the 2R robot were also made. Finally, the results obtained through points and trajectories with different modes of operation through physical and simulated tests in Matlab are presented. Este documento presenta la interacción entre un microcontrolador, un ordenador y dos servomotores para el funcionamiento del prototipo de un brazo robótico de 2 grados de libertad, aplicado a la escritura de un robot 2R el cual fue programado con un microcontrolador de bajo costo (Arduino Uno), utilizando los servomotores para el movimiento de las articulaciones del robot 2R. Además, se presenta el área de trabajo del robot 2R, haciendo uso del toolbox de robótica de Peter Corke en MATLAB, también se realizaron las conexiones que hay en el circuito con el microcontrolador y los demás componentes electrónicos que trabajan simultáneamente junto al robot 2R. Finalmente, se presentan los resultados obtenidos mediante puntos y trayectorias con diferentes modos de funcionamiento mediante pruebas físicas y simuladas en Matlab

    What Can Robotics Research Learn from Computer Vision Research?

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    The fields of computer vision and robotics are both children of the artificial intelligence program that was spawned by the Dartmouth Conference in 1956. In recent decades the fields have diverged in terms of conferences and journals, research methodology and research rate. From a robotics perspective it seems that computer vision is in the fast lane while robotics is stuck in the slow lane. Roboticists hold a fundamental belief in the importance of experimentation but could it be that experiments are actually holding us back? Or is it that we are doing experiments poorly?Peter Corke, Feras Dayoub, David Hall, John Skinner, Niko Sünderhau

    2 DOF robot programmed with MatLab® (guide and Peter Corke) and Arduino uno for writing alphabetical characters

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    This document presents the interaction between a microcontroller, a computer and two servomotors for the operation of the prototype of to robotic arm with 2 degrees of freedom, applied to the writing of to 2R robot which was programmed with to low-cost microcontroller (Arduino Uno), using the servomotors for the movement of the joints of the 2R robot. In addition, the work area of the 2R robot es presented, using peter Corke's robotics toolbox in MATLAB, the connections in the circuit with the microcontroller and the other electronic components that work simultaneously with the 2R robot were also made. Finally, the results obtained through points and trajectories with different modes of operation through physical and simulated tests in Matlab are presented. Este documento presenta la interacción entre un microcontrolador, un ordenador y dos servomotores para el funcionamiento del prototipo de un brazo robótico de 2 grados de libertad, aplicado a la escritura de un robot 2R el cual fue programado con un microcontrolador de bajo costo (Arduino Uno), utilizando los servomotores para el movimiento de las articulaciones del robot 2R. Además, se presenta el área de trabajo del robot 2R, haciendo uso del toolbox de robótica de Peter Corke en MATLAB, también se realizaron las conexiones que hay en el circuito con el microcontrolador y los demás componentes electrónicos que trabajan simultáneamente junto al robot 2R. Finalmente, se presentan los resultados obtenidos mediante puntos y trayectorias con diferentes modos de funcionamiento mediante pruebas físicas y simuladas en Matlab

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Robot Manipulator Synthesis - data and algorithm

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    Synthesis of kinematic parameters of serial robotic manipulators Authors: Daniel Huczala et al. Department of Robotics, VSB-Technical University of Ostrava, Czech Republic Dependancies Robotics Toolbox by Peter Corke: https://github.com/petercorke/robotics-toolbox-matlab Spatial Math Toolbox by Peter Corke: https://github.com/petercorke/spatialmath-matlab Modern Robotics package by Kevin Lynch: https://github.com/NxRLab/ModernRobotics Initial Estimation package by Daniel Huczala et al.: https://github.com/robot-vsb-cz/initial-estimation Robkin Interpreter package by Daniel Huczala et al.: https://github.com/robot-vsb-cz/robkin-interprete

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Análisis cinemático del brazo robótico de Stanford

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    En este objeto de aprendizaje se presenta un análisis detallado para la obtención de la cinemática directa del brazo robótico de Stanford utilizando los parámetros de Denavit-Hartenberg. Se presenta la utilización de la herramienta Rotbotics Toolbox de Peter Corke para comprobar los parámetros de D-H y para hacer las simulaciones básicas requeridas.En este objeto de aprendizaje se presenta un análisis detallado para la obtención de la cinemática directa del brazo robótico de Stanford utilizando los parámetros de Denavit-Hartenberg. Se presenta la utilización de la herramienta Rotbotics Toolbox de Peter Corke para comprobar los parámetros de D-H y para hacer las simulaciones básicas requeridas

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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