Memristor Helmholtz oscillator: analysis, electronic implementation, synchronization and chaos control using single controller

2021 ◽  
pp. 207-223
Author(s):  
Cyrille Ainamon ◽  
André Chéagé Chamgoué ◽  
Sifeu Takougang Kingni ◽  
René Yamapi ◽  
Jean Bio Chabi Orou ◽  
...  
Keyword(s):  
Chaos Control ◽  
Single Controller ◽  
Electronic Implementation

scholarly journals Control and Synchronization of Chaos in RCL-Shunted Josephson Junction with Noise Disturbance Using Only One Controller Term

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Di-Yi Chen ◽  
Wei-Li Zhao ◽  
Xiao-Yi Ma ◽  
Run-Fan Zhang
Keyword(s):  
Chaos Control ◽  
Control Method ◽  
Sliding Mode ◽  
Chaotic Behavior ◽  
Coupled System ◽  
Noise Disturbance ◽  
Single Controller ◽  
Simulation Results ◽  
Control And Synchronization ◽  
Asymptotic Synchronization

This paper investigates the control and synchronization of the shunted nonlinear resistive-capacitive-inductance junction (RCLSJ) model under the condition of noise disturbance with only one single controller. Based on the sliding mode control method, the controller is designed to eliminate the chaotic behavior of Josephson junctions and realize the achievement of global asymptotic synchronization of coupled system. Numerical simulation results are presented to demonstrate the validity of the proposed method. The approach is simple and easy to implement and provides reference for chaos control and synchronization in relevant systems.

scholarly journals Permanent magnet synchronous motor: chaos control using single controller, synchronization and circuit implementation

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
André Cheukem ◽  
Alex Stephane Kemnang Tsafack ◽  
Sifeu Takougang Kingni ◽  
Chéagé Chamgoué André ◽  
Justin Roger Mboupda Pone
Keyword(s):  
Permanent Magnet ◽  
Chaos Control ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Circuit Implementation ◽  
Single Controller

scholarly journals Coexisting attractors, chaos control and synchronization in a self-exciting homopolar dynamo system

2020 ◽  
Vol 13 (2) ◽  
pp. 167-179
Author(s):  
Xingrong Chen ◽  
Li Xiao ◽  
Sifeu Takougang Kingni ◽  
Irene Moroz ◽  
Zhouchao Wei ◽  
...  
Keyword(s):  
Chaotic System ◽  
Lyapunov Stability ◽  
Stability Theory ◽  
Chaos Control ◽  
Lyapunov Stability Theory ◽  
Control Signal ◽  
Coexisting Attractors ◽  
Content Type ◽  
Single Controller ◽  
Control And Synchronization

PurposeThe purpose of this paper is to investigate coexisting attractors, chaos control and synchronization in a self-exciting homopolar dynamo system in this paper.Design/methodology/approachTwo single controllers are designed and added to the proposed 3D autonomous chaotic system, and its stability at zero equilibrium point is guaranteed by applying an appropriate control signal based on the Lyapunov stability theory.FindingsNumerical simulations reveal that the proposed 3D dynamo system exhibits periodic oscillations, double-scroll chaotic attractors and coexisting attractors. Finally, a single controller is designed for the global asymptotic synchronization of a unidirectionally coupled identical 3D autonomous chaotic system.Originality/valueThe derived results of this paper are new and complement some earlier works. The innovation concludes two points in this paper; coexisting attractors are foundthe and an appropriate control signal based on the Lyapunov stability theory is established. The ideas of this paper can be applied to investigate some other homopolar dynamo systems.

Optimizing electronic capture of patient-reported outcome measures in oncology clinical trials: lessons learned from a qualitative study

2020 ◽  
Vol 9 (17) ◽  
pp. 1195-1204
Author(s):  
Florence D Mowlem ◽  
Brad Sanderson ◽  
Jill V Platko ◽  
Bill Byrom
Keyword(s):  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Lessons Learned ◽  
Structured Interviews ◽  
Patient Reported ◽  
Oncology Clinical Trials ◽  
Anticancer Treatment ◽  
Fit For Purpose ◽  
The Impact ◽  
Electronic Implementation

Aim: To understand the impact of anticancer treatment on oncology patients’ ability to use electronic solutions for completing patient-reported outcomes (ePRO). Materials & methods: Semi-structured interviews were conducted with seven individuals who had experienced a cancer diagnosis and treatment. Results: Participants reported that the following would impact the ability to interact with an ePRO solution: peripheral neuropathy of the hands (4/7), fatigue and/or concentration and memory issues (6/7), where they are in a treatment cycle (5/7). Approaches to improve usability included: larger, well-spaced buttons to deal with finger numbness, the ability to pause a survey and complete at a later point and presenting the recall period with every question to reduce reliance on memory. Conclusion: Symptoms associated with cancers and anticancer treatments can impact the use of technologies. The recommendations for optimizing the electronic implementation of patient-reported outcome instruments in this population provides the potential to improve data quality in oncology trials and places patient needs at the forefront to ensure ‘fit-for-purpose’ solutions.

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