Results 91 to 100 of about 22,616,288 (249)

Predefined-Time Prescribed-Performance Control of Vehicular Platoons with Input Saturation

Applied Sciences
Vehicular platoons under realistic scenarios are prone to actuator saturation, model uncertainties, and external disturbances, which degrade transient tracking and spacing stability.
Lin Xu, Chun-Wu Yin
doaj   +1 more source

Prescribed-Time Fault-Tolerant Optimal Control of Continuum Surgical Robots via Composite Deep Learning

Fault-tolerant control is essential for surgical continuum robots, where actuator and sensor faults, time-varying delays, input saturation, disturbances, and nonlinearities can rapidly degrade accuracy and safety.
Mohammad Jabari, Carmen Visconte, Med Amine Laribi, Giuseppe Quaglia   +3 more
core   +1 more source

Observer-based finite-time control for discrete fuzzy jump nonlinear systems with time delays

, 2013
This paper investigates the problem of observer based finite-time Hinfinity control for a family of discrete jump nonlinear systems with time delays represented by Takagi- Sugeno (T-S) model.
Karimi, H., Peng Shi, Sing Kiong Nguang, Hamid Reza Karimi, Yingqi Zhang, Nguang, S., Zhang, Y., Shi, P.   +7 more
core   +1 more source

Impact of Six‐Month Monitoring Compared to Three‐Month Monitoring of Laboratories During Methotrexate Therapy

Arthritis Care &Research, EarlyView.
Objective To evaluate whether extending the American College of Rheumatology–recommended monitoring interval for complete blood count and liver function tests in patients receiving methotrexate (MTX) affects timely detection of medication‐related toxicity.
Spencer Simko, Ray Zhang, Sohini Mukherjee, Puneet Bajaj, Bonnie L. Bermas   +4 more
wiley   +1 more source

Employment Trajectories of Patients With Systemic Lupus Erythematosus and Factors Driving Transitions Between States

Arthritis Care &Research, EarlyView.
Objective Systemic lupus erythematosus (SLE) significantly impacts employment capacity. This study aimed to investigate the impact of burden of disease activity, damage, and treatment on employment outcomes and transitions in patients with SLE. Methods Using data from a single center, we analyzed employment transitions, adjusted mean disease activity ...
Javier Mencia‐Ledo, Zahi Touma, Laura Whittall Garcia, Dafna D. Gladman, Behdin Nowrouzi‐Kia   +4 more
wiley   +1 more source

Finite-Time Prescribed Performance Control of Nonlinear Systems With Unmeasurable States

IEEE Access
This paper explores the finite-time prescribed performance control method for strict-feedback nonlinear systems possessing unmeasurable states. Firstly, a fuzzy observer is designed for the purpose of estimating states that are not directly accessible ...
Wenyu Zhao, Lijie Wang, Ruibin Zhu
doaj   +1 more source

Optimizing Hydroxychloroquine Blood Levels and Long‐Term Hydroxychloroquine Intake Could Lower Atherosclerotic Cardiovascular Disease Risk and Prevent Polypharmacy in Systemic Lupus Erythematosus

Arthritis Care &Research, EarlyView.
Objective Hydroxychloroquine (HCQ) is the cornerstone of systemic lupus erythematosus (SLE) management with benefits extending beyond SLE control, including protection against atherosclerotic cardiovascular disease (ASCVD). Although HCQ blood levels reflect recent exposure and long‐term intake reflects medication adherence, the impact of longitudinal ...
Shivani Garg, Murray Urowitz, Charlie Dentz, Niriti Adhikari, Fauzia Hollnagel, Nathalie Costedoat‐Chalumeau   +5 more
wiley   +1 more source

Prescribed Time Dual-Mode Extremum Seeking Control [PDF]

We propose a dual mode extremum seeking control design technique that achieves real-time optimization of an unknown measured cost function in a prescribed time. The controller is shown to achieve semi-global practical stability of the optimal equilibrium
Guay, Martin, Waterman, Adam, Dochain, Denis   +2 more
core   +1 more source

Fixed-Time Trajectory Tracking Control of Fully Actuated Unmanned Surface Vessels with Error Constraints

Journal of Marine Science and Engineering
This paper proposes a fixed-time prescribed performance control technique to address the challenge of precise trajectory tracking control for unmanned surface vessels (USVs) in the presence of external time-varying disturbances and input saturation.
Bowen Sui, Jianqiang Zhang, Zhong Liu, Junbao Wei   +3 more
doaj   +1 more source

Factors Associated With Fibromyalgia Diagnosis Among People Meeting Criteria: Results From UK Biobank

Arthritis Care &Research, EarlyView.
Objective The diagnosis of fibromyalgia (FM) is challenging due to the absence of definitive biomarkers, numerous overlapping comorbidities, and its reliance on patient‐reported symptoms. Discrepancies between diagnostic criteria and clinical practice imply the possibility of diagnostic biases, complicating timely and accurate identification.
Sung‐A Kim, Gary J. Macfarlane, Marcus J. Beasley   +2 more
wiley   +1 more source