Results 71 to 80 of about 369 (174)

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

Advanced 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, Syed Ahmed Jaseem, Jeong Yong Kim, Michael D. Dickey, Matthew Bryant   +4 more
wiley   +1 more source

Controllability of pantograph-type nonlinear non-integer order differential system with input delay

Alexandria Engineering Journal
One of the most famous classes of differential equations is the pantograph equation, which is a unique kind of functional differential equation with proportional delay.
Irshad Ahmad, Saeed Ahmad, Ghaus ur Rahman, Yeliz Karaca, Zareen A. Khan   +4 more
doaj   +1 more source

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

Advanced 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, Fu Li, Yixuan Zhang, Ruiwen Xie, Ilias Samathrakis, Bing Han, Hongbin Zhang   +6 more
wiley   +1 more source

Impact of Temperature Variability on the Caputo Fractional Malaria Model

Engineering 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, Chernet Tuge Deressa   +1 more
wiley   +1 more source

The pantograph lift measurement method in overhead catenary system

Nihon Kikai Gakkai ronbunshu
Condition monitoring technology has advanced remarkably in recent years in various areas, including railways. Since the overhead catenary system and the pantograph in railway does not have enough redundancy, failures of the overhead catenary system or ...
Takayuki USUDA, Masaki TAKAHASHI, Yuki AMANO, Yoshitaka YAMASHITA   +3 more
doaj   +1 more source

Riemann-Liouville fractional-order pantograph differential equation constrained by nonlocal and weighted pantograph integral equations

AIMS Mathematics
In this research, we investigated the Riemann-Liouville fractional-order pantograph differential equation constrained by nonlocal and weighted pantograph integral constraints. We presented novel sufficient conditions for the uniqueness of the solution.
Ahmed M. A. El-Sayed, Wagdy G. El-Sayed, Kheria M. O. Msaik, Hanaa R. Ebead   +3 more
openaire   +2 more sources

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

Energy 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, Alexander Windt, Christoph Streuling, Benedikt Hanke   +3 more
wiley   +1 more source

Fixed‐Time Synergetic Control of Multi‐Interior Permanent Magnet Synchronous Motor Traction System With Dynamic Adhesion

IET Control Theory &Applications, Volume 19, Issue 1, January/December 2025.
To address the issues of unbalanced traction and unstable operation of the train caused by uneven wear, this paper presents a fixed‐time synergetic control‐based solution focusing on the electrical speed synchronization control of multi‐interior permanent magnet synchronous motor (IPMSM) traction system.
Deqing Huang, Qiyuan Zhao, Ruiqi Li, Yupei Jian   +3 more
wiley   +1 more source

On the generalized pantograph functional-differential equation

European Journal of Applied Mathematics, 1993
The generalized pantograph equation y′(t) = Ay(t) + By(qt) + Cy′(qt), y(0) = y0, where q ∈ (0, 1), has numerous applications, as well as being a useful paradigm for more general functional-differential equations with monotone delay. Although many special cases have been already investigated extensively, a general theory for this equation is lacking–its
openaire   +1 more source

Rapid Coupling Prediction for Compact GNSS Arrays via Graph Transformer

Electronics Letters, Volume 61, Issue 1, January/December 2025.
The design of compact GNSS antenna arrays requires rapid evaluation of mutual coupling effects, which conventional full‐wave simulations fail to deliver due to excessive computational costs. This letter proposes a graph transformer model that predicts coupling matrices in real time. By hybridizing the local perception of graph isomorphism network (GIN)
Xiangjun Li, Xiaozhou Ye, Xiaoyu Zhao, Zukun Lu, Feixue Wang, Peiguo Liu   +5 more
wiley   +1 more source