Results 71 to 80 of about 512,239 (216)

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Native coronary artery patency after coronary artery bypass surgery.

JACC: Cardiovascular Interventions, 2014
D. Pereg, P. Fefer, M. Samuel, R. Wolff, A. Czarnecki, S. Deb, J. Sparkes, S. E. Fremes, B. Strauss   +8 more
semanticscholar   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Visceral stent patency in fenestrated stent grafting for abdominal aortic aneurysm repair.

Journal of Vascular Surgery, 2014
F. Grimme, C. Zeebregts, E. Verhoeven, F. Bekkema, M. Reijnen, I. Tielliu   +5 more
semanticscholar   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Patency, Pregnancy, and Live Birth Outcomes of Microsurgical Vasovasostomy Com-pared with Vasoepididymostomy for Vasectomy Reversal: A Systematic Review and Me-ta-Analysis. [PDF]

Int Braz J Urol
Alhanifa AF, Mahapradana PT, Artawan PKA, Negara MO, Duarsa GWK.   +4 more
europepmc   +1 more source

Contrast ultrasonography for tubal patency.

Journal of minimally invasive gynecology, 2014
D. Luciano, C. Exacoustos, A. Luciano
semanticscholar   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

Advanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil, Edward D. McCarthy, Parvez Alam   +2 more
wiley   +1 more source

Endovascular recanalization of chronic total occlusion of the subclavian artery: fifteen years of technological evolution. [PDF]

CVIR Endovasc
Babić S, Milačić A, Kovačević V, Pešić S, Mihajlović V, Antonić Ž, Bojić M.   +6 more
europepmc   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source