Results 61 to 70 of about 463,140 (201)

A Nonstationary Geometry‐Based Model for Channel Characterisation in Vactrains Scenarios Using Leaky Coaxial Cables

IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.
In this paper, a 3D multi‐source GBSM model is proposed for the vacuum tube scenario using LCX. By equating the periodic slots to multiple magnetic dipole antennas, the electric field distribution of LCX is deduced, and the CIR expression is derived. Based on this, the multi‐link spatial‐temporal correlations, including the spatial CCF and temporal ACF,
Kai Wang, Jiahui Qiu, Jiachi Zhang, Liu Liu, Tao Zhou   +4 more
wiley   +1 more source

An Intelligent Coupling 3-Grade Fuzzy Comprehensive Evaluation Approach With AHP for Selection of Levitation Controller of Maglev Trains

IEEE Access, 2020
During recent years, maglev transportation has made great progress, and as a result, many intelligent levitation control algorithms have emerged. However, enterprises often find it difficult to make a choice when faced with the selection of a controller.
Yougang Sun, Lukun Wang, Junqi Xu, Guobin Lin   +3 more
doaj   +1 more source

A Multi‐Objective Optimal Synchronous Modulation Strategy for Three‐Level Converter Through Switching Angle Regulation

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper proposes a novel power loss reduction PWM (PLRPWM) strategy for three‐level neutral point clamped inverters. The proposed strategy aims to achieve multi‐objective optimisation by balancing low output harmonics, reduced switching losses and a balanced neutral‐point potential. ABSTRACT Three‐level neutral point clamped (3L‐NPC) converters have
Chaoqun Xiang, Xinyu Fu, Xinan Zhang, Jingrun Du, Tianhao Qie, Huimin Wang   +5 more
wiley   +1 more source

Bibliometric Analysis of Transport Infrastructure Hypernetwork: Review and Prospects

Journal of Advanced Transportation, Volume 2026, Issue 1, 2026.
The transport infrastructure is transitioning into a multilayer, multifunctional hypernetwork form, posing challenges to traditional single‐mode planning methods in analyzing cross‐system risk transmission mechanisms and achieving spatiotemporal resource optimization. This leads to suboptimal system synergy and resilience.
Zhiguo Shao, Fei Wang, Mengdi Li, Cui Li, Linlin You   +4 more
wiley   +1 more source

Conservation Laws and Dynamics of Solitons to the Multicomponent Fractional Gross–Pitaevskii System: Application in the Bose–Einstein Condensation

Journal of Mathematics, Volume 2026, Issue 1, 2026.
In this work, we study the β‐fractional multicomponent Gross–Pitaevskii (G–P) system, which plays an important role in modeling Bose–Einstein condensates (BECs) and propagation in nonlinear waves. In Bose–Einstein condensation, the G–P equation is of great importance as it describes the condensate wave function’s behavior.
Naila Nasreen, Usman Younas, Muhammad Arshad, Zhaoliang Jiang, David Yaro, Smritijit Sen   +5 more
wiley   +1 more source

Levitation Stability and Hopf Bifurcation of EMS Maglev Trains

Mathematical Problems in Engineering, 2020
This paper analyzed the mechanical characteristics of single electromagnet system and elastic track beam of EMS maglev train and established a five-dimensional dynamics model of single electromagnet-track beam coupled system with classical PD control strategy adopted for its levitation system.
Junxiong Hu, Weihua Ma, Xiaohao Chen, Shihui Luo   +3 more
openaire   +1 more source

IMPLEMENTATION MODEL OF MOTOR TRACTION FORCE OF MAGLEV TRAIN

Science and Transport Progress, 2016
Purpose. Traction force implementation (TFI) by the motor of magnetic levitation train (MLT) occurs in the process of electric-to-kinetic energy transformation at interaction of inductor and armature magnetic fields. Ac-cordingly, the aim of this study is to obtain a correct description of such energy transformation. Methodology.
V. O. Polyakov, M. M. Khachapuridze
openaire   +4 more sources

Influence of Velocity Feedback Time Delay on the Nonlinear Dynamic Characteristics of Maglev Trains Under Unsteady Aerodynamic Forces

International Journal of Mechanical System Dynamics, Volume 5, Issue 4, Page 707-720, December 2025.
ABSTRACT Time delays frequently arise in active control systems due to sensor sampling, signal transmission, and actuator response, making their effects on system dynamics non‐negligible. This paper investigates how velocity feedback time delay influences the nonlinear dynamic characteristics of a maglev train subjected to unsteady aerodynamic forces ...
Jia‐Xuan Li, Zhi‐Wei Liu, Xiang Liu
wiley   +1 more source

Simulation Research of Maglev Train During Uphill and Downhill Process

, 2020
: In the low speed EMS maglev test line experiments in Zhuzhou, it was found that vehicles are prone to hit the tracks, when the maglev train travels uphill or downhill through the tracks with slopes.
Liu, Guoqing, Li, Songqi, Zhang, Kunlun, Yin, Chen   +3 more
core   +1 more source

Recent advances in embedded technologies and self‐sensing concrete for structural health monitoring

Structural Concrete, Volume 26, Issue 5, Page 5300-5334, October 2025.
Abstract Fully embedded and spatially diffuse sensors are central to the advancement of civil and construction engineering. Indeed, they serve as an enabling technology necessary for addressing the current challenges associated with through‐life management and structural health monitoring of existing structures and infrastructures. The need to identify
Marco Civera, Ahmad Naseem, Bernardino Chiaia   +2 more
wiley   +1 more source