Results 81 to 90 of about 150,939 (296)

Incremental Development of Multiple Tool Models for Robotic Reaching Through Autonomous Exploration

open access: yesPaladyn, 2012
Autonomy and flexibility are two major requirements for modern robots. In particular, humanoid robots should learn new skills incrementally through autonomous exploration, and adapt to different contexts. In this paper we consider the problem of learning
Jamone Lorenzo   +4 more
doaj   +1 more source

Kinematics of the six-degree-of-freedom force-reflecting Kraft Master [PDF]

open access: yes
Presented here are kinematic equations for a six degree of freedom force-reflecting hand controller. The forward kinematics solution is developed and shown in simplified form. The Jacobian matrix, which uses terms from the forward kinematics solution, is
Williams, Robert L., II
core   +1 more source

Asymmetry in Skipping Enhances Viability Against Control Input Noise

open access: yesAdvanced Robotics Research, EarlyView.
Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley   +1 more source

Forward Kinematics Solution of Stewart Platform based on Improved Non-dominated Sorting Genetic Algorithm

open access: yesJixie chuandong, 2019
The kinematics solution of Stewart platform is to figure out the relationship between actuator length and posture of moving platform. The inverse kinematics can be easily derivated by space coordinate transformation.
Qiguo Hu, Yanli Luo, Yuqian Wang
doaj  

Trajectory planning and control of a 6 DOF manipulator with Stewart platform-based mechanism [PDF]

open access: yes
The trajectory planning and control was studied of a robot manipulator that has 6 degrees of freedom and was designed based on the mechanism of the Stewart Platform. First the main components of the manipulator is described along with its operation.
Antrazi, Sami, Nguyen, Charles C.
core   +1 more source

Semi-inclusive photon-hadron production in pp and pA collisions at RHIC and LHC

open access: yes, 2012
We investigate semi-inclusive photon-hadron production in the color glass condensate (CGC) framework at RHIC and the LHC energies in proton-proton (pp) and proton-nucleus (pA) collisions. We calculate the coincidence probability for azimuthal correlation
Rezaeian, Amir H.
core   +1 more source

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

open access: yesAdvanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun   +3 more
wiley   +1 more source

Design and implementation of a three-dimensional simulation system for a humanoid table tennis robot

open access: yesMeasurement + Control, 2020
This paper designs and implements a simulation system that can verify the planning algorithms such as table tennis trajectory planning and robot leg movement planning.
Lu Zhou
doaj   +1 more source

Effect of realistic vehicle seats, cushion length, and lap belt geometry on child ATD kinematics [PDF]

open access: yes, 2011
This series of sled tests examined the effect of using real vehicle seats on child ATD performance. Cushion length was varied from production length of 450 mm to a shorter length of 350 mm.
Ebert, S.M.   +3 more
core  

Lattice QCD calculation of hadronic light-by-light scattering

open access: yes, 2015
We perform a lattice QCD calculation of the hadronic light-by-light scattering amplitude in a broad kinematical range. At forward kinematics, the results are compared to a phenomenological analysis based on dispersive sum rules for light-by-light ...
Green, Jeremy   +4 more
core   +1 more source

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