Torque Measurement
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Muscular performance characterization in athletes: a new perspective on isokinetic variables
Background: Isokinetic dynamometry allows the measurement of several variables related to muscular performance, many of which are seldom used, while others are redundantly applied to the characterization of muscle function. Objectives: The present study aimed to establish the particular features of muscle function that are captured by the variables currentl
Braz. J. Phys. Ther.. Publicado em: 10/10/2014
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2. Estimation of Pico-Satellite Attitude Dynamics and External Torques via Unscented Kalman Filter
ABSTRACT: In this study, an Unscented Kalman Filter (UKF) algorithm is designed for estimating the attitude of a pico-satellite and the in-orbit external disturbance torques. The estimation vector is formed by the satellite's attitude, angular rates, and the unknown constant components of the external disturbance torques acting on the satellite. The gravity
J. Aerosp. Technol. Manag.. Publicado em: 2014-06
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3. Efficiency-Multimission Comprehensiveness Balance for Platform-Based Satellite Family
ABSTRACT: This paper aims to present the Comprehensiveness Balance for Efficiency (CBfE) method for Platform-Based Satellite Family. The lack of a penalty measurement to assess the performance loss of using a platform could reduce significantly the family performance. The method, taking into account the comprehensiveness of space missions and the platform ch
J. Aerosp. Technol. Manag.. Publicado em: 2014-03
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4. Screw loosening of different UCLA-type abutments after mechanical cycling
AIM: To evaluate the loss of applied torque (detorque) values in cast and pre-machined abutments for external hex abutment/implant interface of single implant-supported prostheses subjected to mechanical cycling. METHODS: Ten metal crowns were fabricated using two types of UCLA abutments: cast and pre-machined with metal base in NiCrTi alloy and tightened to
Braz. J. Oral Sci.. Publicado em: 2013-09
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5. Reliability of isokinetic evaluation in passive mode for knee flexors and extensors in healthy children
BACKGROUND: The isokinetic dynamometer has been considered the gold-standard measurement of muscle performance. However, the reliability for the passive mode in children has not been reported to date. OBJECTIVES: The purpose was to evaluate the reliability of the isokinetic dynamometer in passive mode in children. METHOD: Twenty-one healthy child
Braz. J. Phys. Ther.. Publicado em: 2013-04
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6. Estudo da influência da força de corte em usinagem a verde nas propriedades mecânicas de cerâmicas sinterizadas / Influence of the cutting force of green machining on the mechanical properties of sintered ceramics
The present study deals with the measurement forces of green machining ceramics and their correlation with the mechanical properties after sintering. The green machining is employed in crude compacts either to check raw formats without compromising the extreme dimensional accuracy or to obtain a preform prior to finish machining after sintering, extensively
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/01/2012
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7. Análise de veículos para atividades agrícolas por meio do consumo de combustível e torque na tomada de potência
While investing a new tractor that can live up to their demands, the agrobusiness entrepreneur encounters the difficult task of making a rational choice between different models from different manufacturers. The aim of this work is to develop a tool that provides information for the theoretical comparison between demands of torque and power in a tractor fiel
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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8. Um estudo sobre a máquina Torus
Este trabalho apresenta as características básicas de uma máquina elétrica com fluxo axial, ímãs permanentes, rotor duplo e estator com enrolamentos toroidais montado entre os rotores. A máquina foi construída no Laboratório de Máquinas Elétricas, Acionamentos e Energia da Escola de Engenharia da UFRGS. O trabalho contém modelos analíticos para
Publicado em: 2010
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9. Measurement of the morse taper abutment removal torque in dental implants using a carbon deposition above the attrition surface / Mensuração do torque de desaperto do componente protético em conexão do tipo cone-morse em implantes dentários utilizando deposição de carbono sobre a superfície de atrito
Os implantes cone morse apresentam um travamento e vedamento por meio de atrito entre as paredes do implante e do pilar protético. Nos sistemas convencionais do tipo Hexágono externo e interno, para reduzir o afrouxamento dos parafusos protéticos, são utilizados materiais de cobertura de superfície, como carbono e ouro. Não foram encontradas referênci
Publicado em: 2009
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10. CONTRIBUTION TO THE STUDY OF PERMANENT MAGNET SYNCHRONOUS ADVANCED DRIVE: APPROACH BASED ON HIGHER ORDER SLIDING MODES CONTROL / CONTRIBUIÇÃO AO ESTUDO DO ACIONAMENTO AVANÇADO DO MOTOR SÍNCRONO DE ÍMÃS PERMANENTES: ABORDAGEM BASEADA NOS MODOS DESLIZANTES DE ORDEM SUPERIOR
This work presents a study of first and second order sliding mode controllers applied to permanent magnet synchronous motor.The aim is a theoretical study and an experimental implementation, using the DSP TMS320F2812 platform, of two second order sliding mode controllers. In addiction a study about the first order sliding mode is presented. The inclusion of
Publicado em: 2009
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11. Preload and torque removal evaluation of three different abutment screws for single standing implant restorations
Several authors still consider the mechanical problems of fracture and component loosening as the main causes of failure of implant-supported restorations. The purpose of this in vitro study was to compare the preload of three types of screw for transmucosal abutment attachment used in single implant-supported prosthesis through strain gauge and removal torq
Journal of Applied Oral Science. Publicado em: 2008-02
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12. Mapeamento geoestatístico dos parâmetros Nspt e torque máximo de solos em parte da bacia do Ribeirão Cambezinho em Londrina/PR
O presente estudo teve como objetivo não só o do mapeamento dos parâmetros geotécnicos de resistência à penetração do amostrador-padrão e de Torque Máximo do SPT-T (Standard Penetration Test with Torque Measurement), obtidos a partir de um banco de 238 sondagens realizadas na bacia hidrográfica do ribeirão Cambezinho, que compreende parte da zona
Publicado em: 2008