Results 261 to 270 of about 2,024,115 (310)

Discrepancy between the 3 dimensional joint angles and clinical, planar joint angles

Proceedings of the First Joint BMES/EMBS Conference. 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Annual Fall Meeting of the Biomedical Engineering Society (Cat. No.99CH37015), 2003
The 3-D angles calculated by nonorthogonal joint coordinate system (NJCS) corresponds well with clinical joint angle when a motion occurs mainly one plane as normal human gait. Because the NJCS does not consider the rotational status of distal segment to calculate the rotation angle around proximal body fixed axis, there may be a situation in which the
S.G. Chung, K.W. Lee
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Inertial sensors for assessment of joint angles

Proceedings of the 4th Workshop on ICTs for improving Patients Rehabilitation Research Techniques, 2016
In this paper, two approaches for estimating joint angles are presented: the first one uses only an accelerometer to estimate hip and knee angles on static postures, whereas the second approach fuses information from multiple sensors to dynamically calculate leg range of motion.
Susana Carneiro, Joana Silva 0001, João Madureira, Dinis Moreira, Vânia Guimarães, António Santos, Inês Sousa   +6 more
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Fatigue of rubber-rubber joints and the effect of joint angle

Journal of Adhesion Science and Technology, 1991
Results of our investigation of the fatigue-to-failure of rubber-rubber joints are presented. Two different types of composites-type I with the angle tip of the stiffer matrix embedded in the softer matrix at an angle, and type II having the reverse configuration-were prepared for the study.
Amalendu Sarkar, Anil K. Bhowmick
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Joint angle and delay estimation of point sources

2005 12th IEEE International Conference on Electronics, Circuits and Systems, 2005
In this paper, we evaluate the performance of the JADE-MUSIC (joint angle and delay estimation) algorithm in the presence of point sources. The observed snapshots are used to estimate the space-time channel matrix. The estimated channel matrix is then used to jointly estimate the direction of arrival and the time of arrival. The performance of the JADE-
Insaf Jaafar, Rim Amara, Hatem Boujemaa, Mohamed Siala 0001   +3 more
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Wearable Monitoring of Joint Angle and Muscle Activity

2019 IEEE 16th International Conference on Rehabilitation Robotics (ICORR), 2019
Simultaneous tracking of muscle activity and joint rotation is of significant interest in rehabilitation, but gold-standard methods with optical motion tracking and wireless electromyography recording typically restricts this to the laboratory setting.
R. James Cotton, John Rogers
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Joint Source and Sensor Localization by Angles of Arrival

IEEE Transactions on Signal Processing, 2020
Joint source and sensor localization (JSSL) attempts to simultaneously locate the multiple sources and sensors by exploiting the measurements between them. The research of JSSL has been based on time of arrival (TOA) measurements that require synchronization of the sources and sensors.
Trung-Kien Le 0002, K. C. Ho 0001
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Joint angle-based EMG amplitude calibration

2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011
A calibration method is proposed to compensate for the changes in the surface electromyogram (SEMG) amplitude level of the biceps brachii at different joint angles due to the movement of the muscle bulk under the EMG electrodes for a constant force level.
Javad Hashemi, Evelyn Morin, Parvin Mousavi, Keyvan Hashtrudi-Zaad   +3 more
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A practical evaluation of joint angle and delay estimation

2015 International Conference on Indoor Positioning and Indoor Navigation (IPIN), 2015
It has been proposed to jointly estimate the angles and delays of the paths in a multipath channel. It is interesting to investigate how this improves the precision of angle-of-arrival based localization systems. In this paper, we provide measurement results comparing the performance of ESPRIT-based algorithms for joint estimation to angle- and delay ...
Thomas Lindner 0003, Sven Hafenecker, Niels Hadaschik, Jörn Thielecke   +3 more
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The Effect of Knee Joint Angle on Torque Control

Journal of Motor Behavior, 2010
The purpose of the author's investigation was to examine the effect of knee joint angle on torque control of the quadriceps muscle group. In all, 12 healthy adults produced maximal voluntary contractions and submaximal torque (15, 30, and 45% MVC [maximal voluntary contraction]) at leg flexion angles of 15 degrees , 30 degrees , 60 degrees , and 90 ...
Jacob J, Sosnoff, Stefani J, Voudrie, Kyle T, Ebersole   +2 more
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Euler-Angle-Joints (EAJs)

2012
As frequently noted in the literature on robotics (Sugihara et al. 2002; Kurazume et al. 2003; Vukobratovic et al. 2007; Kwon and Park 2009) and mechanisms (Duffy 1978; Chaudhary and Saha 2007), a higher Degrees-of-Freedom (DOF) joint, say, a universal, a cylindrical or a spherical joint, can be represented using a combination of several intersecting 1-
Suril Vijaykumar Shah, Subir Kumar Saha, Jayanta Kumar Dutt   +2 more
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