Results 191 to 200 of about 9,081,051 (310)

Synthesizing Interacting Model‐Based Optimal Control and Model‐Free Learning Approaches for Nonlinear Systems

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT In this paper, we consider the optimal control problem for an unknown continuous‐time nonlinear system, and present a framework that integrates model‐based and model‐free methods to solve it. Each approach offers distinct advantages: model‐based techniques provide offline synthesis and data efficiency, while model‐free procedures excel at ...
Surabhi Athalye, Kyriakos G. Vamvoudakis, Panos J. Antsaklis   +2 more
wiley   +1 more source

Increased risk of inflammatory bowel disease in ankylosing spondylitis compared to psoriasis. [PDF]

Front Immunol
He Z, Zhang YN, Wei JC, Dai SM.
europepmc   +1 more source

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

Comorbidities and Molecular Genetics Status in Familial and Nonfamilial Hypercholesterolemia: A Single-Center Study. [PDF]

Int J Mol Sci
Timoshchenko O, Shakhtshneider E, Ivanoshchuk D, Zorina V, Orlov P, Semaev S, Ragino Y.   +6 more
europepmc   +1 more source

Safe Stabilization Using Non‐Smooth Control Lyapunov Barrier Function

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper addresses the challenge of safe stabilization, ensuring the system state reaches the origin while avoiding unsafe state regions. Existing approaches that rely on smooth Lyapunov barrier functions often fail to guarantee a feasible controller. To overcome this limitation, we introduce the non‐smooth control Lyapunov barrier function (
Jianglin Lan, Eldert van Henten, Peter Groot Koerkamp, Congcong Sun   +3 more
wiley   +1 more source

Mortality and diagnostic practice variation in interstitial lung disease admissions: insights from a multicentre UK cohort study. [PDF]

BMJ Open Respir Res
White LJ, Shaw J, Powell B, Kyi NM, Sou A, Hughes GE, Tilakaratne D, Hayton C, Raj T, Truong V, Ismail N, Khanijoun N, Huang R, Hardy E, Aslam Z, Sohail M, Babar M, Amjad A, Khan N, Regan M, Okpala O, Suresh R, Mcintosh J, Gadoud A, Gatheral T, Ng Man Kwong G.   +25 more
europepmc   +1 more source

The role of identification in data‐driven policy iteration: A system theoretic study

International Journal of Robust and Nonlinear Control, EarlyView.
Abstract The goal of this article is to study fundamental mechanisms behind so‐called indirect and direct data‐driven control for unknown systems. Specifically, we consider policy iteration applied to the linear quadratic regulator problem. Two iterative procedures, where data collected from the system are repeatedly used to compute new estimates of ...
Bowen Song, Andrea Iannelli
wiley   +1 more source

The performance of ASpirin-FREE therapy after successful percutaneous coronary intervention for acute coronary syndrome: the ASFREE prospective pilot study. [PDF]

J Yeungnam Med Sci
Joo D, Jo S, Byoun JT, Cho JY, Yun KH.
europepmc   +1 more source

Autonomous Navigation in Large‐Scale Underground Environments Based on a Purely Topological Understanding of Tunnel Networks

Journal of Field Robotics, EarlyView.
ABSTRACT This work presents a non‐geometrical navigation approach based on a purely topological understanding of underground environments. By conceptualizing subterranean scenarios as a set of tunnels that intersect with each other, and taking a navigation approach based on topological instructions, we simplify the navigation problem to the sequential ...
Lorenzo Cano, Danilo Tardioli, Alejandro R. Mosteo   +2 more
wiley   +1 more source

FAM13A polymorphism is associated with a usual interstitial pneumonia pattern in patients with systemic sclerosis-associated interstitial lung disease. [PDF]

Rheumatology (Oxford)
Bernstein EJ, Boin F, Elicker B, Luo Y, Ren Y, Zhang M, Varga J, Assassi S.   +7 more
europepmc   +1 more source