Results 261 to 270 of about 24,817,127 (318)
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Multiple system atrophy with macrosquare‐wave jerks
Movement Disorders, 2004AbstractMacrosquare‐wave jerks consist of high‐amplitude saccadic intrusions occurring mainly during fixation that are observed in several disease entities, e.g., multiple sclerosis or parkinsonian syndromes, but very rarely in patients with multiple system atrophy.
Luisa, Klotz, Thomas, Klockgether
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IEEE Transactions on Circuits and Systems - II - Express Briefs, 2020
This brief investigates the nonsingular terminal sliding model control for a class of multi-agent tracking problems. To eliminate the singularity problem that naturally arises in the design of sliding mode control, a novel continuous function is proposed
Lijing Dong, Deyin Yu, S. Nguang
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This brief investigates the nonsingular terminal sliding model control for a class of multi-agent tracking problems. To eliminate the singularity problem that naturally arises in the design of sliding mode control, a novel continuous function is proposed
Lijing Dong, Deyin Yu, S. Nguang
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Nonlinear Behavior of a Novel Switching Jerk System
International Journal of Bifurcation and Chaos, 2020This paper proposes a novel chaotic jerk system, which is defined on four domains, separated by codimension-2 discontinuity surfaces. The dynamics of the proposed system are conveniently described and analyzed through a generalization of the Poincaré map which is constructed via an explicit solution of each subsystem.
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Active Suspension Systems With Optimal Jerk Control
Volume 2: Automotive Systems, Bioengineering and Biomedical Technology, Fluids Engineering, Maintenance Engineering and Non-Destructive Evaluation, and Nanotechnology, 2006An active suspension system should be designed/optimized in conjunction with the tradeoff between ride and handling. In recent years, jerk as a measure of ride quality is considered in performance index. In this paper, effects of jerk in active suspension system for a 1/4 car model is investigated.
M. Taghipour +2 more
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Realization of Higher-Order Hyperchaotic Jerk System
2021This research article suggests a novel method for realization of the higher-order chaotic jerk system. Proposed topology presents an idea for obtaining the nth-order chaotic system by using traditional cascading method. The generalized nth-order chaotic model is implemented with few passive components using integrator and summer amplifier with a sine ...
Manoj Joshi, Vivek Bhatt, Ashish Ranjan
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Chinese Physics B, 2023
Memristor-based chaotic systems with infinite equilibria are interesting because they generate extreme multistability. Their initial state-dependent dynamics can be explained in a reduced-dimension model by converting the incremental integration of the ...
M. Wang 王, Lingfang 玲芳 Gu 辜
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Memristor-based chaotic systems with infinite equilibria are interesting because they generate extreme multistability. Their initial state-dependent dynamics can be explained in a reduced-dimension model by converting the incremental integration of the ...
M. Wang 王, Lingfang 玲芳 Gu 辜
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Analysis of Zero–Hopf Bifurcation in a Simple Jerk System
International Journal of Bifurcation and Chaos, 2023This work aims to study the zero–Hopf bifurcation of a jerk system with four real parameters. Some sufficient conditions of the emergence of periodic orbit and its stability at zero–Hopf equilibrium point are obtained by averaging theory.
Guo, Biyao +3 more
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Jerk Control of Floating Base Systems With Contact-Stable Parameterized Force Feedback
IEEE Transactions on robotics, 2019Nonlinear controllers for floating base systems in contact with the environment are often framed as quadratic programming (QP) optimization problems. Common drawbacks of such QP-based controllers are: the control input often experiences discontinuities ...
Ahmad Gazar +3 more
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Jerk derivative feedforward control for motion systems
Proceedings of the 2004 American Control Conference, 2004This work discusses reference trajectory relevant model based feedforward design. For motion systems which contain at least one rigid body mode and which are subject to reference trajectories with mostly low frequency energy, the proposed feedforward controller improves tracking performance significantly. The feedforward controller may be of much lower
Boerlage, M.L.G. +2 more
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Energy function and complex dynamics from a jerk system
Physica Scripta, 2023Abstract Jerk, as a mathematical concept, is used in mechanics to describe the rate of change of acceleration and plays a crucial role in the design of control systems for machines and vehicles. Therefore, it is important to master the various states and the energy released during the change of acceleration. This is why a new simple jerk
Jinhua Yu +4 more
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