Results 71 to 80 of about 2,380 (167)

Analyzing Coupled Delayed Fractional Systems: Theoretical Insights and Numerical Approaches

Mathematics
In this work, we investigate the theoretical properties of a generalized coupled system of finite-delay fractional differential equations involving Caputo derivatives.
Meraa Arab, Mohammed S. Abdo, Najla Alghamdi, Muath Awadalla   +3 more
doaj   +1 more source

The Benefits of Hierarchical Ecosystem Models: Demonstration Using EcoState, a New State‐Space Mass‐Balance Model

Fish and Fisheries, Volume 26, Issue 2, Page 203-218, March 2025.
ABSTRACT Ecosystem models predict changes in productivity and status for multiple species, and are important for incorporating climate‐linked dynamics in ecosystem‐based fisheries management. However, fishery regulations are primarily informed by single‐species stock assessment models, which estimate unexplained variation in dynamics (e.g., recruitment,
James T. Thorson, Kasper Kristensen, Kerim Y. Aydin, Sarah K. Gaichas, David G. Kimmel, Elizabeth A. McHuron, Jens M. Nielsen, Howard Townsend, George A. Whitehouse   +8 more
wiley   +1 more source

Scalar Auxiliary Variable (SAV) Stabilization of Implicit‐Explicit (IMEX) Time Integration Schemes for Non‐Linear Structural Dynamics

International Journal for Numerical Methods in Engineering, Volume 126, Issue 2, 30 January 2025.
ABSTRACT Implicit‐explicit (IMEX) time integration schemes are well suited for non‐linear structural dynamics because of their low computational cost and high accuracy. However, the stability of IMEX schemes cannot be guaranteed for general non‐linear problems.
Sun‐Beom Kwon, Arun Prakash
wiley   +1 more source

Fractal-Fractional-Order Modeling of Liver Fibrosis Disease and Its Mathematical Results with Subinterval Transitions

Fractal and Fractional
In this paper, we study human liver disease with a different approach of interval-based investigation by introducing subintervals. This investigation may be referred to as a short memory investigation.
Amjad E. Hamza, Osman Osman, Arshad Ali, Amer Alsulami, Khaled Aldwoah, Alaa Mustafa, Hicham Saber   +6 more
doaj   +1 more source

A Fully Coupled Numerical Solution of Water, Vapor, Heat, and Water Stable Isotope Transport in Soil

Water Resources Research, Volume 61, Issue 1, January 2025.
Abstract Modeling water stable isotope transport in soil is crucial to sharpen our understanding of water cycles in terrestrial ecosystems. Although several models for soil water isotope transport have been developed, many rely on a semi‐coupled numerical approach, solving isotope transport only after obtaining solutions from water and heat transport ...
Han Fu, Eric John Neil, Huijie Li, Bingcheng Si   +3 more
wiley   +1 more source

N ordsieck form of multirate integration method for flexible multibody dynamic analysis

Computer Assisted Methods in Engineering and Science, 2023
A Nordsieck form of multirate integration scheme has been proposed for flexible multibody dynamic systems of which motions are represented by large gross motion coupled with small vibration.
Sung-Soo K Kim
doaj  

Aplikasi Metode Adams-Bashforth-Moulton Model Verhulst Pada Hasil Panen Padi di Kabupaten Jombang [PDF]

Rice is one of the main crops produced by agricultural commodities which is staple food of most Indonesian people. The availability of rice is needed to anticipate the emergence of problems in the future such as population growth, changes in seasons, or ...
Hanafi, Lukman, Kamiran, Kamiran, Prasetyo, Rizki Eko, Sadjidon, Sadjidon   +3 more
core   +2 more sources

Slow‐Scale Instability in the Two‐Phase Interleaved Fractional‐Order Boost DC–DC Converter: Analysis and Confirmation

Electronics Letters, Volume 61, Issue 1, January/December 2025.
(1) ESPM (equivalent small parameter method)‐based steady‐state modelling of fractional‐order PWM converters with non‐consistent‐period dynamics is proposed and demonstrated on a two‐phase interleaved fractional‐order boost DC–DC converter considering parasitic effects. (2) Rigorous analysis reveals the slow‐scale instability mechanism and the combined
Chunling Hao, Faqiang Wang, Hao Qiu
wiley   +1 more source

N-Body Simulation Program [PDF]

, 2011
Simulátor problému n těles předpovídá pohyb astronomických objektů pomocí numerické integrace pohybových zákonů. Gravitační interakce jsou počítány pomocí klasické Newtonovy mechaniky, tělesa jsou modelována jako hmotné body a neberou se v úvahu jiné ...
Kollárová, Martina
core  

Dynamics of the Fractional‐Order Between‐Host Cholera Model With Temperature‐Dependence

Abstract and Applied Analysis, Volume 2025, Issue 1, 2025.
This paper presents a comprehensive analysis of a fractional‐order between‐host cholera model incorporating temperature‐dependent parameters. The model is formulated using Caputo fractional derivatives, offering advantages over classical integer‐order models through its memory effects and enhanced predictive capabilities for disease outbreaks.
Owade Kennedy Jackob, Colleta Akinyi, Yufeng Xu   +2 more
wiley   +1 more source