A modified delayed feedback control algorithm with the improved global properties is proposed. The modification is based on the ergodic features of chaotic systems. We do not perturb the system until its state approaches a desired unstable periodic orbit and then we activate the delayed feedback control force. To evaluate the closeness of the system state to the target orbit, a special algorithm is devised. For continuous-time systems, it can be implemented by means of a simple low-pass filter. An additional low-pass filter can be used for selection of the particular orbit from several unstable orbits of the same period.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevE.80.067201 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A robust output-feedback control scheme based on composite nonlinear feedback in singular uncertain delayed models.
ISA Trans
January 2025
Graduate School of Intelligent Data Science, National Yunlin University of Science and Technology, Douliou, Yunlin, Taiwan. Electronic address:
Relying on composite nonlinear feedback, an output-feedback controller is robustly addressed in the singular models with uncertainties, disturbances and time-delays. For this purpose, an observer-based compensator is utilized to realize the purpose. In the presence of disturbance and uncertainty, it is demonstrated that the tracking error and the states of the overall system are ultimately bounded.
View Article and Find Full Text PDFCervical Cancer Screening in Women With Physical Disabilities.
JAMA Netw Open
January 2025
Department of Family Medicine, University of Michigan, Ann Arbor.
Importance: Cervical cancer screening is a crucial public health intervention, but screening disparities exist for women with physical disabilities (WWPD).
Objective: To explore the experiences of WWPD with both traditional speculum examination-based screening and at-home self-sampling for cervical cancer screening.
Design, Setting, And Participants: This qualitative study enrolled 56 WWPD to test self-sampling kits, provide feedback via a survey, and participate in a qualitative interview.
Why the Delay? A Quality Improvement Initiative for Delayed Cord Clamping in Preterm Infants.
J Paediatr Child Health
January 2025
Department of Paediatrics, Royal Hobart Hospital, Hobart, Tasmania, Australia.
Aim: To improve delayed cord clamping (DCC) rates for preterm infants (≤ 34 + 0 weeks' gestation) and establish DCC as standard practice using quality improvement (QI) methods.
Methods: A multi-departmental initiative was undertaken. An audit of DCC for preterm infants born at or before 34 + 0 weeks was performed.
The effect of nitrile gloves on temperature perception during hot water immersion.
Burns
January 2025
St. Andrew's Centre for Plastic Surgery and Burns, Mid and South Essex NHS Foundation Trust, Chelmsford CM1 7E, UK; St. Andrew's Anglia Ruskin Research (StAAR) Group, Anglia Ruskin University, Chelmsford, UK.
Introduction: Scalds account for 40 % of burn injuries in developed countries, with a subset occurring during caregiving activities, particularly when gloves are worn. Gloves, a standard precaution against infection and body fluid exposure, may impair sensory feedback critical for detecting temperature changes, potentially increasing the risk of burns during personal care tasks.
Methods: This study investigated the impact of glove use on heat perception.
Improving Critical Care Teamwork: Simulation-Based Interprofessional Training for Enhanced Communication and Safety.
J Multidiscip Healthc
January 2025
School of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
Background: This study evaluates a simulation-based interprofessional education (IPE) program implemented at the National Cheng Kung University Hospital between 2018 and 2023. The program aimed to improve teamwork, communication, and collaboration among healthcare professionals in high-acuity environments such as emergency departments and intensive care units (ICUs).
Methods: A prospective, mixed-methods approach was used to assess the program's effectiveness.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!