Results 161 to 170 of about 10,893 (284)

Design of a Three‐Phase PWM Rectifier Based on Improved Whale Optimization Algorithm Optimized Fuzzy Control

Advanced Control for Applications, Volume 8, Issue 3, September 2026.
Schematic diagram of the whale optimization algorithm (WOA)–optimized fuzzy proportional–integral–derivative (PID) controller. The WOA is employed to dynamically tune the scaling factor expressions and fuzzy control parameters (a(e)a(e), a(ec)a(ec), βpβp, βiβi), as well as the initial PID gains (kp0kp0, ki0ki0), based on the error (ee) and its ...
Xiaosong Tian, Meiguang Jiang, Congguo Jiang, Guangya Liu, Jun Zhang, Xiangwen Lv, Weijiang Yang, Ruoyu Yang   +7 more
wiley   +1 more source

Application of randomized quadrature formulas to the finite element method for elliptic equations. [PDF]

BIT Numer Math
Kruse R, Polydorides N, Wu Y.
europepmc   +1 more source

Evaluating the Influence of Injury‐Induced Microstructural Variations on the Efficacy of a Diffusion MRI‐Derived Axon Diameter Surrogate

Magnetic Resonance in Medicine, Volume 96, Issue 3, Page 1355-1364, September 2026.
ABSTRACT Purpose To investigate the utility of a recently demonstrated diffusion MRI derived axon diameter surrogate measure (∆D⟂) under pathologic conditions induced by a spinal cord injury model. Methods Contusion injuries were performed on the thoracic–lumbar spinal cord of adult male rats.
Hannah E. Alderson, Chaoqi Mu, Li Min Chen, Mark D. Does, Kevin D. Harkins   +4 more
wiley   +1 more source

Self‐Similar Blowup for the Cubic Schrödinger Equation

Communications on Pure and Applied Mathematics, Volume 79, Issue 8, Page 1831-1918, August 2026.
ABSTRACT We give a rigorous proof for the existence of a finite‐energy, self‐similar solution to the focusing cubic Schrödinger equation in three spatial dimensions. The proof is computer‐assisted and relies on a fixed point argument that shows the existence of a solution in the vicinity of a numerically constructed approximation.
Roland Donninger, Birgit Schörkhuber
wiley   +1 more source

Fast Calculation for the Flow and Heat Transfer of Tempered Fractional Maxwell Viscoelastic Fluid

International Journal for Numerical Methods in Fluids, Volume 98, Issue 8, Page 969-979, August 2026.
This study develops a tempered fractional Maxwell model to simulate unsteady thermal flow in viscoelastic fluids, capturing key rheological behaviors. A fast SOE‐based algorithm is proposed to improve the computational efficiency of the numerical scheme. Results reveal how key parameters influence fluid motion and heat transfer, demonstrating the model'
Yi Liu, Mochen Jiang, Libo Feng
wiley   +1 more source

The finite element neural network method to simulate two dimensional partial differential equations and perform parameter identification. [PDF]

Sci Rep
Abda M, Berthet L, Hamedi M, Hibatullah D, Piollet E, Blake C, Blais B, Gosselin FP.   +7 more
europepmc   +1 more source

Design of Differential Single‐Block and Multi‐Block Presaturated Ultrashort Echo Time Pulse Sequences for Fast and Flexible Short‐T2 Imaging

Magnetic Resonance in Medicine, Volume 96, Issue 2, Page 711-726, August 2026.
ABSTRACT Purpose Ultrashort echo time (UTE) techniques are essential for the magnetic resonance imaging of short‐T2 signals. Current UTE techniques are time‐consuming and often require the acquisition of an inflexible volume. In this work, we implement new UTE sequences—differential single‐block presaturated UTE (δSB‐UTE) and differential multi‐block ...
Jason A. Reich, Shannon L. Taylor, Kevin D. Harkins, Rachelle L. Crescenzi, Erin L. MacMillan, Rebecca E. Feldman   +5 more
wiley   +1 more source

Convergence of the Immersed Interface Method in Linear Elasticity. [PDF]

Mathematica (N Y)
Asghar S, Peng Q, Javierre E, Vermolen F.   +3 more
europepmc   +1 more source

Improved Radiofrequency Safety Modelling in MRI Using In Vivo Measurements of Brain Conductivity

NMR in Biomedicine, Volume 39, Issue 8, August 2026.
A workflow for the comparison of simulated and measured B1+$$ {B}_1^{+} $$ maps was developed and applied to a study on human tissue (brain) electrical conductivity, investigating differences between conductivity values from ex vivo and in vivo measurements.
Guillaume Paillart, Zhongzheng He, Grecia Romero, Pauline Ferry, Khalid Ambarki, Paul Soullié, Jacques Felblinger, Freddy Odille   +7 more
wiley   +1 more source

Efficient Inference in First Passage Time Models. [PDF]

Stat Comput
Liu S, Fengler A, Frank MJ, Harrison MT.
europepmc   +1 more source