Results 141 to 150 of about 1,640,648 (241)

Fractal–fractional model for analysis of tuberculosis infection using Ethiopia incidence data

Quantitative Biology, Volume 14, Issue 3, September 2026.
Abstract In this study, a fractional‐order SEIuITR $SE{I}_{u}ITR$ model was proposed to examine the transmission of tuberculosis (TB) in the community. The proposed model was rigorously examined for well‐posedness. The basic reproduction number was also derived, and the disease‐free equilibrium was obtained.
Kumama Regassa Cheneke, Fatmawati Fatmawati, Mustafa Bayram   +2 more
wiley   +1 more source

The Concept of the Mixing Index

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Many current measures of mixing, such as the statistics of concentration, the scalar dissipation rate, or dilution index, are based on the dilution of a single component or pseudo‐component. Because of this, they miss the influence of numerous conditions that directly change true mixing, such as initial separation of chemically distinct water ...
David A. Benson, Diogo Bolster, Nicholas B. Engdahl   +2 more
wiley   +1 more source

Convergence and combinatorics of the Reverse algorithm

Bulletin of the London Mathematical Society, Volume 58, Issue 9, September 2026.
Abstract We study the Reverse algorithm, a multidimensional continued fraction algorithm, which is not unimodular. We show that the Reverse algorithm is ergodic and, by proving that its second Lyapunov exponent is negative, that it is a.e. exponentially convergent.
Hiroaki Ito, Niels Langeveld, Jörg Thuswaldner   +2 more
wiley   +1 more source

Positive realness and Lyapunov functions for switched behaviors

, 2012
We define a switched behavioral system as a finite bank of linear differential behaviors, together with some gluing conditions relating the system variables and their derivatives before and after each switching instant.
Rocha, Paula, Rapisarda, Paolo
core   +1 more source

Information Loss in Scalar Monetary Aggregation: A Tensorial Langevin Framework for Financial Shock Propagation and Policy Targeting. [PDF]

Entropy (Basel)
Pinheiro MR, Pinheiro MJ.
europepmc   +1 more source

Sampled-data exponential stabilization for delayed complex valued neural networks with quantized intermittent communication. [PDF]

PLoS One
Li J, Wang X.
europepmc   +1 more source

Observer-based optimal and robust output regulation for nonlinear systems. [PDF]

PLoS One
Qazi AKA, Memon AY.
europepmc   +1 more source

From Robust Control to Cyber-Resilience: A Comprehensive Overview of the Polytopic Framework for Safety-Critical Systems. [PDF]

Sensors (Basel)
Rebai SB.
europepmc   +1 more source

Real-time HIL validation of a lyapunov-guaranteed optimal FOPID controller for quadrotor UAV trajectory tracking. [PDF]

Sci Rep
Elbasueny B, El-Sotouhy MM, Said E, Elsherif I, Kamel MA.   +4 more
europepmc   +1 more source

A 4D hyperchaotic image encryption scheme using Circular Radius-Angle Transformation and bit-level permutation. [PDF]

PLoS One
Khalaf MA, Sheikh UU, Manan SSBA, Hamood SF, Najamuddin.   +4 more
europepmc   +1 more source