Results 21 to 30 of about 503,325 (331)
DEM Analysis of Track Ballast for Track Ballast–Wheel Interaction Simulation
Applied Sciences, 2020 This study aims to suggest a rational analysis method for a track ballast–wheel interaction that could be further developed to model the interaction in a train-derailment event, based on the discrete-element method (DEM).
Nam-Hyoung Lim +3 more
doaj +1 more source
Sensors, 2021 Wearable sensors facilitate running kinematics analysis of joint kinematics in real running environments. The use of a few sensors or, ideally, a single inertial measurement unit (IMU) is preferable for accurate gait analysis.
Daniel Hung Kay Chow +5 more
doaj +1 more source
, 2022 AbstractOne aspect in haptic devices is the design of the kinematics. The kinematics of a mechanism is the key to implement and accomplish the design goals, like transmitting dynamic feedback in the form of forces or torques, or allowing a sufficient workspace for the user to interact with environment. This chapter introduces the steps of the kinematic
Youssef, Fady, Kassner, Sebastian
openaire +1 more source
IEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics), 2012 The kinematics of a robot with many degrees of freedom is a very complex function. Learning this function for a large workspace with a good precision requires a huge number of training samples, i.e., robot movements. In this paper, we introduce the Kinematic Bézier Map (KB-Map), a parameterizable model without the generality of other systems but whose ...
Ulbrich, Stefan +4 more
openaire +5 more sources
JSES International, 2020 Hypothesis: This study aimed to examine the reliability and diagnostic discriminative accuracy of 5 different methods that quantity the craniocaudal humeral position with respect to the scapula on conventional radiographs. Methods: In this retrospective,
Arjen Kolk, MD +4 more
doaj +1 more source
KINEMATICALLY BLOCKED CURVATON [PDF]
Modern Physics Letters A, 2011 In this paper, we investigate the idea that the decay of a curvaton is kinematically blocked and show that the coupling constant for curvaton decay can be as large as [Formula: see text]. We also find in this case the lower bound of the Hubble parameter at horizon exit from big bang nucleosynthesis (BBN) is H* ≳ 7.2 × 10-9M P ~ 1010 GeV .
Lee, Lu-Yun +2 more
openaire +2 more sources
Kinematics in Young Star Clusters and Associations with Gaia DR2 [PDF]
Astrophysical Journal, 2018 The Gaia mission has opened a new window into the internal kinematics of young star clusters at the sub-km s−1 level, with implications for our understanding of how star clusters form and evolve.
M. Kuhn +4 more
semanticscholar +1 more source
Age-Related Changes in Inter-Joint Interactions for Global and Local Kinematics While Standing
IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023 Inter-joint interactions are involved in human standing. These interactions work not only for global kinematics that control the center of mass (COM) of the entire body, but also for local kinematics that control joint angular movements.
Kimiya Fujio, Yahiko Takeuchi
doaj +1 more source
Hierarchical Diffusion Policy for Kinematics-Aware Multi-Task Robotic Manipulation [PDF]
Computer Vision and Pattern RecognitionThis paper introduces Hierarchical Diffusion Policy (HDP), a hierarchical agent for multi-task robotic manipulation. HDP factorises a manipulation policy into a hierarchical structure: a high-level task-planning agent which predicts a distant next-best ...
Xiao Ma +3 more
semanticscholar +1 more source
Inertial Sensor-Based Lower Limb Joint Kinematics: A Methodological Systematic Review
Italian National Conference on Sensors, 2020 The use of inertial measurement units (IMUs) has gained popularity for the estimation of lower limb kinematics. However, implementations in clinical practice are still lacking. The aim of this review is twofold—to evaluate the methodological requirements
I. Weygers +5 more
semanticscholar +1 more source