Results 31 to 40 of about 4,145,213 (292)
Stability and Bifurcation Analysis of Fifth-Order Nonlinear Fractional Difference Equation
Fractal and Fractional, 2023 In this paper, a rational difference equation with positive parameters and non-negative conditions is used to determine the presence and direction of the Neimark–Sacker bifurcation.
Abdul Khaliq +6 more
doaj +1 more source
Use of phase portraits of hydro-mechanical units for diagnosing aircraft hydraulic systems
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018 The article deals with diagnostics of hydraulic systems using phase portraits. A brief review of the existing methods for diagnosing hydraulic units identifying their advantages and disadvantages is given.
A. M. Gareyev, I. A. Popelnyuk
doaj +1 more source
Results in Physics, 2023 This article studies the generalized nonlinear Schrödinger equation, which is used to simulate the propagation model of optical pulses in Non-Kerr medium.
Kun Zhang, Zhao Li
doaj +1 more source
On a Planar Dynamical System Arising in the Network Control Theory
Mathematical Modelling and Analysis, 2016 We study the structure of attractors in the two-dimensional dynamical system that appears in the network control theory. We provide description of the attracting set and follow changes this set suffers under the changes of positive parameters µ and Θ.
Svetlana Atslega +2 more
doaj +1 more source
Molecular Oncology, EarlyView.High‐risk bladder cancer is typically treated with Bacillus Calmette‐Guérin (BCG), but 30–40% of patients relapse. No FDA‐ or CE‐approved biomarkers currently predict or prognosticate BCG failure. We systematically reviewed the literature and identified 72 eligible studies, revealing several promising biomarkers associated with BCG treatment response ...
Rui Ribeiro‐Pereira +7 more
wiley +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Building on our prior Behavioral Risk Factor Surveillance System analysis identifying adults aged 18–39 as the primary driver of the national increase in self‐reported cognitive disability, we examined factors associated with this rise using 2013–2024 U.S. BRFSS data. Methods We analyzed U.S.
Adam de Havenon +9 more
wiley +1 more source
On the Phase Portrait of the Fast Filtering Algorithms [PDF]
ESAIM: Control, Optimisation and Calculus of Variations, 1999 The paper describes phase portraits of fast filtering algorithms for \(n\)-th order filtering problems and of the related matrix Riccati differential equations. In particular it studies the case when the relevant positivity conditions (in the context of spectral factorization) are not necessarily satisfied so that the convergence of the fast filtering ...
openaire +2 more sources
Advanced Healthcare Materials, EarlyView.Efficient recovery from traumatic or degenerative diseases is a great challenge, even after all the advancements in bone and cartilage regeneration. Machine learning (ML) algorithms have presented opportunities to enhance these aspects by accurately analyzing imaging data.
Maryam Kamaei +9 more
wiley +1 more source