Results 71 to 80 of about 24,817,127 (318)
Should We Forget the Jerk in Trajectory Generation?
VibrationThis article explores whether jerk, the derivative of acceleration, should be limited in trajectory planning for position-controlled mechanical systems or in the controller.
Robbert van der Kruk
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On the Possibility of the Jerk Derivative in Electrical Circuits
Advances in Mathematical Physics, 2016 A subclass of dynamical systems with a time rate of change of acceleration are called Newtonian jerky dynamics. Some mechanical and acoustic systems can be interpreted as jerky dynamics. In this paper we show that the jerk dynamics are naturally obtained
J. F. Gómez-Aguilar +5 more
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Latin America and the Caribbean SARS-CoV-2 Surveillance: Longitudinal Trend Analysis
JMIR Public Health and Surveillance, 2021 BackgroundThe COVID-19 pandemic has placed unprecedented stress on economies, food systems, and health care resources in Latin America and the Caribbean (LAC).
Post, Lori +14 more
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Observational constraints on the jerk parameter with the data of the Hubble parameter
, 2018 We study the accelerated expansion phase of the universe by using the {\textit{kinematic approach}}. In particular, the deceleration parameter $q$ is parametrized in a model-independent way.
Bamba, Kazuharu, Mamon, Abdulla Al
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Advanced Materials Technologies, EarlyView.We introduce an additively manufactured bioreactor with a perfusion flow system and integrated temperature and pH sensors for skeletal muscle tissue biofabrication. The bioreactor's performance was evaluated by assessing the viability, spreading of the myoblast cells in a printed scaffold, and contraction of the isolated murine musculi interossei ...
Lys Sprenger +9 more
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Adaptive, Observer-Based Synchronization of Different Chaotic Systems
Applied Sciences, 2022 In this study, the problem of master–slave synchronization of two different chaotic systems is considered and solved under a novel set of assumptions. The mathematical model of each of them contains unknown, constant parameters.
Jacek Kabziński, Przemysław Mosiołek
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Characterizing Input Methods for Human-to-robot Demonstrations
, 2019 Human demonstrations are important in a range of robotics applications, and are created with a variety of input methods. However, the design space for these input methods has not been extensively studied. In this paper, focusing on demonstrations of hand-
Gleicher, Michael +3 more
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Learning Highly Dynamic Skills Transition for Quadruped Jumping Through Constrained Space
Advanced Robotics Research, EarlyView.A quadruped robot masters dynamic jumps through constrained spaces with animal‐inspired moves and intelligent vision control. This hierarchical learning approach combines imitation of biological agility with real‐time trajectory planning. Although legged animals are capable of performing explosive motions while traversing confined spaces, replicating ...
Zeren Luo +6 more
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Measuring movement fluency during the sit-to-walk task [PDF]
, 2013 Restoring movement fluency is a key focus for physical rehabilitation; it's measurement, however, lacks objectivity. The purpose of this study was to find whether measurable movement fluency variables differed between groups of adults with different ...
A. Kerr +37 more
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Advanced Science, EarlyView.In a lumbar spine instability model, dorsal root ganglion cells mediate the perception of relevant mechanical stresses through Piezo2 and subsequently release CGRP. CGRP activates the NF‐κB signaling pathway in cartilage endplate cells through the receptor RAMP1.
Hanpeng Xu +16 more
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