Results 61 to 70 of about 353 (183)
Fractional Pantograph Delay Equations Solving by the Meshless Methods
Ibn Al-Haitham Journal for Pure and Applied Sciences, 2023 This work describes two efficient and useful methods for solving fractional pantograph delay equations (FPDEs) with initial and boundary conditions.
Shefaa M. N. Jasim, Ghada H. Ibraheem
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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 +3 more
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On the balanced pantograph equation of mixed type
Ukrains’kyi Matematychnyi ZhurnalUDC 517.9 We consider the balanced pantograph equation (BPE) y ′ ( x )
Derfel, G., van Brunt, B.
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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 +5 more
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IET Electrical Systems in Transportation, Volume 2025, Issue 1, 2025.Decarbonizing rail transport in response to global warming is fundamental to achieving a net zero transportation system. Along with increased passenger mobility and network electrification initiatives, significant connectivity between the train and infrastructure is needed to underpin operational communications and safety, information exchange, and ...
Yljon Seferi +3 more
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IET Electrical Systems in Transportation, Volume 2025, Issue 1, 2025.In addressing the issue of electromagnetic interference in railway environments, research into the coupling pathways, amplitude distribution patterns, and attenuation characteristics of such interference is crucial for identifying practical solutions. Rails, a common channel for signaling and traction power supply systems, play a pivotal role in anti ...
Shaotong Chu +2 more
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On a new structure of the pantograph inclusion problem in the Caputo conformable setting
Boundary Value Problems, 2020 In this work, we reformulate and investigate the well-known pantograph differential equation by applying newly-defined conformable operators in both Caputo and Riemann–Liouville settings simultaneously for the first time.
Sabri T. M. Thabet +2 more
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Availability Evaluation of Overhead Contact Lines Based on a Stochastic Colored Petri Nets Model
IET Electrical Systems in Transportation, Volume 2025, Issue 1, 2025.Due to their nonbackup characteristics and constant exposure to outdoor conditions, the performance of overhead contact lines (OCLs) will gradually degrade over time and further result in equipment defects or frequent failures. These issues significantly impact system availability and incur substantial repair costs.
Jingheng Zhou +4 more
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Controllability of pantograph-type nonlinear non-integer order differential system with input delay
Alexandria Engineering JournalOne 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 +4 more
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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
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