Results 51 to 60 of about 353 (183)

Strain Amplification via Helically Braided Fiber Reinforced Sleeve for Soft Material Energy Harvesting

open access: yesAdvanced Materials Technologies, Volume 10, Issue 13, July 8, 2025.
This study presents a braided fiber‐reinforced sleeve that amplifies strain in soft materials, enhancing their performance in stretchable devices like sensors and energy harvesters. By reinforcing and elongating encased materials, the sleeve increases the “effective” strain.
Emily Duan   +4 more
wiley   +1 more source

Dynamical analysis of Hilfer–Hadamard type fractional pantograph equations via successive approximation

open access: yesJournal of Taibah University for Science, 2019
In this note, we consider a nonlinear pantograph equation with Hilfer–Hadamard fractional derivative. We investigate the existence and continuous dependence results by using successive approximations and generalized Gronwall inequality.
D. Vivek, Kamal Shah, K. Kanagarajan
doaj   +1 more source

Exact and Approximate Solutions for Some Classes of the Inhomogeneous Pantograph Equation

open access: yesAxioms, 2023
The standard pantograph delay equation (SPDDE) is one of the famous delay models. This standard model is basically homogeneous in nature and it has been extensively studied in the literature. However, the studies on the general inhomogeneous form of such
A. A. Al Qarni
doaj   +1 more source

Multifunctionality of Single‐Atom‐Thick 2D Magnetic Atoms in Nanolaminated M2AX: Toward Permanent Magnets and Topological Properties

open access: yesAdvanced Physics Research, Volume 4, Issue 6, June 2025.
High‐throughput calculations unveil the stability, magnetic behavior, and transport properties of M2AX phases with magnetic A elements, predicting 139 metastable compounds. Highlights include high‐Curie‐temperature magnets, exceptional magneto‐crystalline anisotropy, and tunable anomalous Hall and Nernst conductivities, offering new insights and ...
Chen Shen   +6 more
wiley   +1 more source

Analytical and Numerical Investigation for the Inhomogeneous Pantograph Equation

open access: yesAxioms
This paper investigates the inhomogeneous version of the pantograph equation. The current model includes the exponential function as the inhomogeneous part of the pantograph equation.
Faten Aldosari, Abdelhalim Ebaid
doaj   +1 more source

Numerical study on aerodynamic drag and noise of high-speed pantograph by introducing spanwise waviness

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
It is noteworthy to explore potential measures for further reducing the aerodynamic drag and noise of high-speed pantographs. This paper proposes a method of introducing spanwise waviness into the upper and lower arms.
Deng Qin, Tian Li, Jiye Zhang, Ning Zhou
doaj   +1 more source

Impact of Temperature Variability on the Caputo Fractional Malaria Model

open access: yesEngineering Reports, Volume 7, Issue 3, March 2025.
This study aims to analyze the age related characteristics of malaria in human host by exploring Caputo fractional order models with temperature variability, that is looked into the combined effects of fractional order and temperature variability on malaria dynamics.
Dawit Kechine Menbiko   +1 more
wiley   +1 more source

Applications of Standard Methods for Solving the Electric Train Mathematical Model With Proportional Delay

open access: yesInternational Journal of Analysis and Applications, 2022
In electric trains, the current is collected via a certain device, called the Pantograph. The governing mathematical model of such physical problem is well-known as the Pantograph delay differential equation (PDDE): y’(t)=ay(t)+by(ct), where c is a ...
S. M. Khaled
doaj   +1 more source

Discretized Stability and Error Growth of The Nonautonomous Pantograph Equation [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2005
The paper deals with stability properties of Runge-Kutta methods for the pantograph equation \[ y^\prime(t) = f(t,y(t),y(qt),y^\prime(qt)),\quad t > 0, \] \[ y(0) = y_0. \] The authors obtain sufficient and necessary conditions for the asymptotic stability of the numerical solution and an upper bound for the error growth is obtained.
Huang, Chengming, Vandewalle, Stefan
openaire   +3 more sources

Pareto Optimization of the Integration of Renewables for the Supply of Battery‐Electric and Hydrogen‐Electric Multiple Units at a Single Site

open access: yesEnergy Science &Engineering, Volume 13, Issue 2, Page 582-597, February 2025.
Optimization framework for battery electric and hydrogen multiple units. ABSTRACT Battery‐ and hydrogen‐powered trains are emerging technologies that have the potential to play a key role in the decarbonization of railway lines for which full trackside electrification is not feasible.
Stefan Arens   +3 more
wiley   +1 more source

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