Results 221 to 230 of about 186,189 (266)
Some of the next articles are maybe not open access.
A practical evaluation of joint angle and delay estimation
2015 International Conference on Indoor Positioning and Indoor Navigation (IPIN), 2015It 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 +3 more
openaire +1 more source
Joint angle and delay estimation of point sources
2005 12th IEEE International Conference on Electronics, Circuits and Systems, 2005In 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 +3 more
openaire +1 more source
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 +2 more
openaire +1 more source
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 +2 more
openaire +1 more source
Joint angle signaling by muscle spindle receptors
Brain Research, 1986Nerve impulses were recorded from sensory fibers supplying the tibialis anterior and soleus muscles of anesthetized cats as the ankle joint was moved from one end of the flexion-extension axis to the other and back again in steps of 6-7 degrees. The rate of movement from one position to the next was 40 deg/s and each position was held for 16-18 s ...
J Y, Wei +3 more
openaire +2 more sources
Measurements of normal joint angles by goniometry in calves
Veterinary and Comparative Orthopaedics and Traumatology, 2014SummaryThe aim of this study was to establish normal reference values of the forelimb and hindlimb joint angles in normal Holstein calves.Thirty clinically normal Holstein calves that were free of any detectable musculoskeletal abnormalities were included in the study.
O, Sengöz Şirin +3 more
openaire +2 more sources
Dependence of human ankle compliance on joint angle
Journal of Biomechanics, 1978Abstract The compliance of the normal human ankle joint has been measured at different mean joint angles. This was done by applying band-limited Gaussian torques to rotate the ankle about a horizontal axis through the medial malleolus. The dependence of the measured compliance on mean joint angle is found to be primarily due to passive properties of
G L, Gottlieb, G C, Agarwal
openaire +2 more sources
Soft curvature sensors for joint angle proprioception
2011 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2011We introduce a curvature sensor composed of a thin, transparent elastomer film (polydimethylsiloxane, PDMS) embedded with a microchannel of conductive liquid (eutectic Gallium Indium, eGaIn) and a sensing element. Bending the sensor exerts pressure on the embedded microchannel via the sensing element.
Rebecca K. Kramer +3 more
openaire +1 more source
The effects of joint angle on electromyographic indices of fatigue
European Journal of Applied Physiology and Occupational Physiology, 1996The purpose of this study was to examine the effect of manipulation of joint angle on electromyographic (EMG) fatigue curves at different sites over the quadriceps muscle group. Eight subjects performed isometric knee extensions at 0.26, 0.79, and 1.31 rad from full extension for 1 min at 50% of maximum.
J P, Weir, A L, McDonough, V J, Hill
openaire +2 more sources
Wearable Monitoring of Joint Angle and Muscle Activity
2019 IEEE 16th International Conference on Rehabilitation Robotics (ICORR), 2019Simultaneous 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
openaire +2 more sources
Relationship of Metatarsophalangeal Joint Fusion on the Intermetatarsal Angle
Foot & Ankle, 1989To evaluate the effect of fusion of the first metatarsophalangeal joint on the first intermetatarsal angle, a series of 62 consecutive first metatarsophalangeal fusions was reviewed. Of these, 47 had sufficient data to be included in this study. The results of this study showed that the change in the first intermetatarsal angle following a first ...
R A, Mann, D A, Katcherian
openaire +2 more sources