Results 81 to 90 of about 1,301,601 (206)

Securing the Unseen: A Comprehensive Exploration Review of AI‐Powered Models for Zero‐Day Attack Detection

Expert Systems, Volume 43, Issue 3, March 2026.
ABSTRACT Zero‐day exploits remain challenging to detect because they often appear in unknown distributions of signatures and rules. The article entails a systematic review and cross‐sectional synthesis of four fundamental model families for identifying zero‐day intrusions, namely, convolutional neural networks (CNN), deep neural networks (DNN ...
Abdullah Al Siam, Nuruzzaman Faruqui, Akm Azad, Mohammad Ali Moni   +3 more
wiley   +1 more source

Numerical Approximation of the Singularly Perturbed Heat Equation in a Circle [PDF]

Journal of Scientific Computing, 2014
In this article we study the two dimensional singularly perturbed heat equation in a circular domain. The aim is to develop a numerical method with a uniform mesh, avoiding mesh refinement at the boundary thanks to the use of a relatively simple representation of the boundary layer. We provide the asymptotic expansion of the solution at first order and
openaire   +3 more sources

Automatic Adaptive and Targeted Localized Refinement in Transient Structural Dynamic Simulations Using the Multiresolution Finite Wavelet Domain Method

International Journal for Numerical Methods in Engineering, Volume 127, Issue 1, 15 January 2026.
ABSTRACT The multiresolution finite wavelet domain method has been meticulously studied in numerous wave propagation simulations, showing excellent convergence properties and very fast computing times. The multiresolution procedure always starts with the coarse solution, and then finer solutions can be superimposed on the coarse solution until ...
Dimitris Dimitriou, Katerina Samara, Dimitris Saravanos   +2 more
wiley   +1 more source

Analytical Solutions and Computer Modeling of a Boundary Value Problem for a Nonstationary System of Nernst–Planck–Poisson Equations in a Diffusion Layer

Mathematics
This article proposes various new approximate analytical solutions of the boundary value problem for the non-stationary system of Nernst–Planck–Poisson (NPP) equations in the diffusion layer of an ideally selective ion-exchange membrane at overlimiting ...
Savva Kovalenko, Evgenia Kirillova, Vladimir Chekanov, Aminat Uzdenova, Mahamet Urtenov   +4 more
doaj   +1 more source

Exploring the Fecal Microbiome Dysbiosis and Its Plasma Metabolome Determinants in Advanced Parkinson's Disease With Motor Complications

CNS Neuroscience &Therapeutics, Volume 32, Issue 1, January 2026.
Our multiomics analysis across three PD cohorts revealed distinct fecal microbiome and plasma metabolome alterations in patients with motor complications (PD‐MC). We identified specific microbial and metabolic biomarkers and uncovered significant correlations between them, providing new insights into PD‐MC pathophysiology. ABSTRACT Background Parkinson'
Shuangjie Qian, Jialong Hou, Xi Xiong, Qi Duan, Tao Jiang, Yi Zheng, Weiwei Quan, Jiaxue Xu, Keke Chen, Jingjing Qian, Hongchang Gao, Chenglong Xie   +11 more
wiley   +1 more source

Roars, Rumbles, and Resonance: A Systematic Review and Meta‐Analysis of Crocodylian Acoustic Signals

Ecology and Evolution, Volume 16, Issue 1, January 2026.
Crocodylians are highly vocal reptiles, possessing a complex acoustic signalling system including vocal and non‐vocal signals used for courtship, mating, mediating conflict, and providing maternal care. Despite this, research on crocodylian acoustic signalling remains infrequent, with methodologies and terminology varying widely across studies.
Sonnie A. Flores, Ross G. Dwyer, Stuart Parsons, Dominique A. Potvin   +3 more
wiley   +1 more source

Overlapping domain decomposition method for singularly perturbed third order reaction-diffusion problems

Ain Shams Engineering Journal, 2018
In this paper, we present an analysis of overlapping Schwarz method for singularly perturbed third order reaction-diffusion problems. The Schwarz method invokes two fine mesh subdomains and one coarse mesh subdomain.
J. Christy Roja, A. Tamilselvan
doaj   +1 more source

A numerical approach for investigating a special class of fractional Riccati equation

Results in Physics, 2020
A computational scheme for solving special type of fractional Riccati equation with singularly perturbed (FRSP) is investigated. It is based on dividing the equation into algebraic equation and fractional equation.
Bothayna S. Kashkari, Muhammed I. Syam
doaj   +1 more source

Sliding Mode Control Based on PID Switching Surface Design for Terminal Voltage and Load Frequency Control in Multi‐Area Power Systems

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
Unlike conventional studies that treat automatic voltage regulation (AVR) and load frequency control (LFC) as decoupled subsystems, a combined state‐space model of MAPS is first formulated to capture the electromechanical coupling between the two loops while representing load disturbances, parameter uncertainties, and solar power output fluctuations ...
Nguyen Thanh Doan, Dao Trong Tran, Do Dac Thiem, Van Van Huynh   +3 more
wiley   +1 more source

Critical Threshold and Stability of Cluster Solutions for Large Reaction-Diffusion Systems in R [PDF]

, 2002
We study a large reaction-diffusion system which arises in the modeling of catalytic networks and describes the emerging of cluster states. We construct single cluster solutions on the real line and then establish their stability or instability in
Winter, M, Wei, J
core   +2 more sources