13. Uso da robótica para exploração e descoberta do ambiente para crianças com deficiência física severa

Severe-physically disabled children have little chance of environmental and social exploration and discovery, and due this lack of interaction and independency, this fact may lead to an idea that they are unable to do anything by themselves. This idea is called learned helplessness and is very negative for the childs cognitive development and social developm

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2011

14. Utilização de redes neurais de Spikes para tarefas de navegação de agentes robóticos autônomos

Detectar e prevenir possíveis colisões é um dos aspectos mais importantes na robótica móvel. Esta tarefa, embora aparente facilidade quando executada por seres vivos, mantêm sua dificuldade quando modelada e executada por agentes robóticos autônomos. Além disso, roboticistas e pesquisadores têm sempre encontrado na natureza uma fonte inesgotável d

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/03/2011

15. A rough terrain traction control technique for all-wheel-drive mobile robots

Traction control is a critical aspect of mobile robots that need to traverse rough terrain, avoiding excessive slip - which may cause the terrain to collapse locally and trap the robot wheels - and guaranteeing an adequate trajectory and speed control while reducing the power requirements. Traction control of all-wheel-drive robots in rough terrain was origi

Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-12

16. Design of CAN-based distributed control systems with optimized configuration

A current trend in distributed control systems is the application of communication networktechnologies such as CAN - Controller Area Network. A recent utilization approach ofthese technologies is the networked control systems (NCS). The fundamental challenges inthe development of NCS are the analysis of the network delay effects and the prediction of the tim

Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-12

17. Controle de um robô móvel através de realimentação de estados utilizando visão estereoscópica / Feedback control of a mobile robot using stereo vision

O enfoque principal desse trabalho é o controle de trajetória e navegação no ambiente através da visão estereoscópica de um robô móvel de duas rodas de acionamento diferencial. Para o controle de posicionamento, são utilizadas: uma estratégia de controle ótima linear e uma estratégia subótima, não linear, em tempo contínuo, chamada de SDRE (S

Publicado em: 2010

18. Outdoor mapping using mobile robots / Mapeamento de ambientes externos utilizando robôs móveis

Autonomous mobile robotics is a recent research area that focus on the construction of mechanisms capable of executing tasks without a human control. In general, mobile robotics deals with three fundamental problems: environment mapping, robot localization and navigation. Without these elements, the robot hardly could move autonomously from a place to anothe

Publicado em: 2010

19. Robô autômato para monitoramento de rebanho e medição da forragem do pasto / Automated robot for monitoring and measuring livestock grazing

The growth of the cattle is following the global population growth and has put strong pressure on pastures. A pasture overloaded initially reduces the productivity of pastures without due care end up becoming great deserts. This project is inserted into this context and aims to develop a robot automaton able to get around in the pasture, monitor the catle an

Publicado em: 2010

20. Arquitetura aberta para controle de robôs manipuladores

Este documento trata da especificação de uma arquitetura aberta para controle de robôs manipuladores. A arquitetura é implementada utilizando o framework do projeto OROCOS, ambiente que já foi utilizado com sucesso em alguns sistemas de controle de robôs. Esta arquitetura é especificada para um robô manipulador genérico de N juntas, definindo compon

Publicado em: 2010

21. Análise de duas propostas para a reabilitação da marcha em indivíduos portadores de sequelas neurológicas crônicas

This work is composed of three distinct studies. In the first one, we compared the muscle coactivation of tibialis anterior (TA) and gastrocunemius medialis (GM) during quiet stance and the also during the stance phase of gait in hemiparetic subjects (hemiparetic group, HG, n=12) and in subjects with no neurologic injuries (control group, CG, n=10). We evalu

Publicado em: 2010

22. Estudo exploratÃrio de parÃmetros de soldagem de revestimentos com ligas de NÃquel empregando o processo TIG com alimentaÃÃo de arame frio / Exploratory study of coating welding parameters with nickel alloys using GTAW with cold wire feeding

The aim of this work was to carry out a systematic study of GTAW welding parameters with feeding of cold wire for covering application of nickel alloys (UNS N06625, UNS N06686 and UNS N10276) in substract of steel C-Mn considering the analysis of geometric, economic and operational characteristics of layers, form to adjust these coverings for the industries

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/01/2009

23. Underactuated manipulator robot control via H2, H∞, H2/H∞, and µ-synthesis approaches: a comparative study

ABSTRACT This paper deals with robust control of underactuated manipulator robots. It presents a comparative study of four combined controllers H2, H∞ , H2/H∞ and µ-synthesis, pluscomputed torque method. These controllers are applied in an actual underactuated manipulator robot with 3 degrees of freedom, of which joints can be configured as active or pa

Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-12

24. Robotic-assisted partial nephrectomy: surgical technique using a 3-arm approach and sliding-clip renorrhaphy

INTRODUCTION: For the treatment of renal tumors, minimally invasive nephron-sparing surgery has become increasingly performed due to proven efficiency and excellent functional and oncological outcomes. The introduction of robotics into urologic laparoscopic surgery has allowed surgeons to perform challenging procedures in a reliable and reproducible manner.

International braz j urol. Publicado em: 2009-04