Results 101 to 110 of about 174,012 (313)

New Inverse Kinematics Algorithms Combining Closed Form Solutions with Nonlinear Optimization for Highly Redundant Robotic Systems

, 2009
This paper presents inverse position kinematics algorithms with real time capability for Justin, a robotic system with high redundancy and many degrees of freedom.
Hirzinger, Gerd, Konietschke, Rainer
core  

Freehand Three-Dimensional Ultrasound to Evaluate Scapular Movement [PDF]

, 2013
Altered scapular kinematics have been linked to increases in shoulder pain and pathology. As such, identifying normal scapular movement is integral to preventing pathology and maintaining health of the joint.
Worobey, Lynn A
core  

2D-3D registration of CT vertebra volume to fluoroscopy projection: A calibration model assessment (doi:10.1155/2010/806094) [PDF]

, 2009
This study extends a previous research concerning intervertebral motion registration by means of 2D dynamic fluoroscopy to obtain a more comprehensive 3D description of vertebral kinematics. The problem of estimating the 3D rigid pose of a CT volume of a
P. Bifulco, Allen, R., R. Allen, ROMANO, MARIA, G. Pasquariello, CESARELLI, MARIO, G. P.a.s.q.u.a.r.i.e.l.l.o., Bifulco, P., Cesarelli, M., Romano, M., A. Fratini, Fratini, A., Pasquariello, G., M. Cesarelli, M. Romano, BIFULCO, PAOLO   +15 more
core   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

Maize nodal root growth maintenance during water deficit: metabolic acclimation and the role of increased solute deposition in osmotic adjustment

Frontiers in Plant Science
Maize (Zea mays L.) nodal roots are characterized by their ability to maintain elongation under water deficit conditions that inhibit the growth of other organs.
Tyler J. McCubbin, Tyler J. McCubbin, Tyler J. McCubbin, Laura A. Greeley, Laura A. Greeley, Rachel A. Mertz, Rachel A. Mertz, Sidharth Sen, Sidharth Sen, Amelia E. Griffith, Amelia E. Griffith, Shannon K. King-Miller, Shannon K. King-Miller, Kara Riggs, Kara Riggs, Nicole D. Niehues, Nicole D. Niehues, Akanksha Pareek, Akanksha Pareek, Victoria J. Bryan, Shuai Zeng, Shuai Zeng, Cheyenne Becker, Cheyenne Becker, Abdul Ghani, Trupti Joshi, Trupti Joshi, Trupti Joshi, Trupti Joshi, Scott C. Peck, Scott C. Peck, Scott C. Peck, Melvin J. Oliver, Melvin J. Oliver, Felix B. Fritschi, Felix B. Fritschi, David M. Braun, David M. Braun, David M. Braun, Robert E. Sharp, Robert E. Sharp   +40 more
doaj   +1 more source

Model-based teaching and learning of kinematics in an introductory physics course for underprepared students

, 2009
Includes abstract.Includes bibliographical references (leaves 170-182).This study concerns the application of a model-based approach for problem solving and conceptual understanding, in the context of kinematics, relating to the "foundation" component of
Ibrahim, Bibi Bashirah
core  

Improving the Robustness of Visual Teach‐and‐Repeat Navigation Using Drift Error Correction and Event‐Based Vision for Low‐Light Environments

Advanced Robotics Research, EarlyView.
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley   +1 more source

Hand Dynamics in Healthy Individuals and Spinal Cord Injury Patients During Real and Virtual Box and Block Test

Applied Sciences
Virtual reality (VR) is a promising tool in spinal cord injury (SCI) rehabilitation, particularly through virtual adaptations of functional tests like the Box and Block test (BBT).
Verónica Gracia-Ibáñez, Ana de los Reyes-Guzmán, Margarita Vergara, Néstor J. Jarque-Bou, Joaquín-Luis Sancho-Bru   +4 more
doaj   +1 more source

Whole body kinematics and knee moments that occur during an overhead catch and landing task in sport

, 2012
Background: Athletes suffering an anterior cruciate ligament injury tend to exhibit similar body postures that in sidestep cutting are associated with increased knee moments. This relationship, however, has not been investigated in landing.
Dempsey, A.R., Munro, B.J., Elliott, B.C., Lloyd, D.G., Steele, J.R.   +4 more
core  

Multidirectional Motion Strategy of Miniature Water Surface Robot Actuated by Single Exciter

Advanced Robotics Research, EarlyView.
A novel multidirectional motion strategy on the water surface based on a single exciter is proposed, and a single‐exciter single‐plate module is developed for actuation. The driving forces generation mechanism of the module is revealed from the perspective of the asymmetric surface wave field.
Haoxuan He, Dehong Wang, Jing Li, Shijing Zhang, Yingxiang Liu   +4 more
wiley   +1 more source