Results 141 to 150 of about 11,954,654 (221)

Optimal Control Analysis of Vertically Transmitted Infectious Diseases With Saturated Incidence and Nonlinear Treatment

Optimal Control Applications and Methods, Volume 47, Issue 5, Page 1083-1100, September/October 2026.
Schematic representation of the proposed disease transmission model incorporating vertical transmission, saturated incidence, and nonlinear treatment. The study combines theoretical analysis, bifurcation and stability investigations, and optimal control techniques to evaluate prevention and treatment interventions.
Oludolapo A. Olanrewaju, Sulaimon F. Abimbade   +1 more
wiley   +1 more source

Solving reaction-diffusion problems with explicit Runge–Kutta exponential methods without order reduction

In this paper a technique is given to recover the classical order of the method when explicit exponential Runge–Kutta methods integrate reaction-diffusion problems.
Moreta Santos, María Jesús, Begoña Cano, María Jesús Moreta, Cano, Begoña   +3 more
core   +1 more source

Vertical Vibration Reduction of Maglev Vehicles Using Nonlinear Model Predictive Control

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 3, September 2026.
ABSTRACT This work presents a novel nonlinear model predictive control (NMPC) strategy for high‐speed Maglev vehicles that explicitly incorporates mechanical suspension dynamics into the control model. Unlike conventional approaches, which often neglect the interaction between levitation magnet and car body motion, the proposed method enables ...
Mario Hermle, Arnim Kargl, Peter Eberhard   +2 more
wiley   +1 more source

Learning Differential Equations From Numerically Integrated Artificial Neural Networks

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 3, September 2026.
ABSTRACT For numerical investigation of dynamical systems, the formulation of the corresponding ordinary differential equations (ODE) based on physical principles is usually the first and most crucial step. However, if the underlying physics is not fully understood or the required expert knowledge for modeling is missing, setting up these differential ...
Timo Bielitz, Dieter Bestle
wiley   +1 more source

Adjoint and Unrolled Automatic Differentiation for Laplace‐Approximated Likelihoods in Population PK and PK/PD Models

CPT: Pharmacometrics &Systems Pharmacology, Volume 15, Issue 9, September 2026.
ABSTRACT Maximum likelihood estimation in population pharmacokinetic/pharmacodynamic (PK/PD) nonlinear mixed‐effects (NLME) models targets fixed‐effect, interindividual‐variability, and residual‐variability parameters through a marginal likelihood that integrates each subject's contribution over individual random effects.
Guido H. Jajamovich, William Holmes, Chih‐Wei Lin, Khamir Mehta   +3 more
wiley   +1 more source

Quadratic projectable Runge-Kutta methods

Runge-Kutta methods are affine equivariant: applying a method before or after an affine change of variables yields the same numerical trajectory. However, for some applications, one would like to perform numerical integration after a quadratic change of ...
Stern, Ari, Viviani, Milo
core  

Conditional Diffusion Models for Global Precipitation Map Inpainting

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Incomplete satellite‐based precipitation presents a significant challenge in global monitoring. For example, the Global Satellite Mapping of Precipitation (GSMaP) from the Japan Aerospace Exploration Agency (JAXA) contains regions without valid microwave observations because Low Earth orbiting (LEO) satellites cannot observe the entire globe ...
Daiko Kishikawa, Yuka Muto, Shunji Kotsuki   +2 more
wiley   +1 more source

A Variational Method for Reconstructing and Separating Balanced Motions and Internal Tides From Wide‐Swath Altimetric Sea Surface Height Observations

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.
Abstract The surface water and ocean topography (SWOT) satellite mission marks a major advance in observing ocean surface dynamics, providing sea surface height (SSH) measurements at unprecedented spatial resolution. Reconstructing gridded SSH fields from SWOT data requires new algorithms capable of retrieving measured fine‐scale variability, which is ...
V. Bellemin‐Laponnaz, F. Le Guillou, C. Ubelmann, E. Blayo, E. Cosme   +4 more
wiley   +1 more source

Public health risk assessment of rodent-driven hantavirus spillover in Europe using a stochastic delay model. [PDF]

Front Public Health
Raza A, Shafique U, Lampart M, Baleanu D, Fadhal E, Alhazmi H.   +5 more
europepmc   +1 more source

The Ensemble Kalman Inversion Race

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.
Abstract Ensemble Kalman methods were initially developed to solve nonlinear data assimilation problems in oceanography but are now popular in applications far beyond their original use cases. Of particular interest is climate model calibration.
Rebecca Gjini, Matthias Morzfeld, Oliver R. A. Dunbar, Tapio Schneider   +3 more
wiley   +1 more source