Results 21 to 30 of about 101 (88)
Advanced Photonics Research, Volume 3, Issue 11, November 2022., 2022 A novel and highly efficient optical thin‐film sensing technique based on the use of toroidal dipole (TD) resonance is demonstrated with both experimental results and numerical assistance. Supported by an E‐shaped germanium metasurface structure on a CaF2 substrate, the sharp TD resonance working in the midinfrared can help achieve easy detection of ...
Min Sun +3 more
wiley +1 more source
Advanced Science, Volume 9, Issue 25, September 5, 2022., 2022 Soft chemistry techniques such as hydrothermal/solvothermal, microwave‐assisted, solution‐based as well as powder‐based techniques are energy‐saving synthesis techniques, which can be utilized for thermoelectric materials for example. Understanding the underlying mechanism/factors behind such techniques is crucial for high product yield, high product ...
Nagaraj Nandihalli +2 more
wiley +1 more source
[Retracted] Simulation of the Electro‐Superconducting System Based on the H Equation
Journal of Chemistry, Volume 2022, Issue 1, 2022., 2022 In order to reduce the levitation energy consumption and increase the levitation air gap, a simulation study of the electrochemistry superconducting magnetic levitation system based on the H equation is proposed. Through finite element simulation, the magnetic field distribution, current distribution, force, and other characteristics of the magnetic ...
Jun Zhang, Ajay Rakkesh R
wiley +1 more source
Subcritical crack growth in hard alloys under cyclic loading
Fatigue &Fracture of Engineering Materials &Structures, Volume 44, Issue 2, Page 349-365, February 2021., 2021 Abstract In this work, the subcritical crack growth in Fe‐, Ni‐ and Co‐base hard alloys was investigated. Specimens were cyclically loaded in the pressure threshold range until a ring crack resulted as a failure criterion. Crack propagation along with the individual microstructural constituents and the associated resistance of the individual materials ...
Lukas Brackmann +3 more
wiley +1 more source
Research and technological prospects of applications for superconducting electrodynamic suspension
机车电传动, 2023 Compared to traditional transportation methods, high-speed maglev trains have many advantages. On a world-wide scale, two modes of maglev systems, electromagnetic suspension (EMS) and electrodynamic suspension (EDS), have emerged mature through years of ...
YU Qingsong +5 more
doaj
A prototype of an energy-efficient MAGLEV train: A step towards cleaner train transport
Cleaner Engineering and Technology, 2021 The magnetic levitation (MAGLEV) train uses magnetic field to suspend, guide, and propel vehicle onto the track. The MAGLEV train provides a sustainable and cleaner solution for train transportation by significantly reducing the energy usage and ...
Zakria Qadir +5 more
doaj +1 more source
Levitation Stability and Hopf Bifurcation of EMS Maglev Trains
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 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 +4 more
wiley +1 more source
Impact of Null-Flux Coil Shape on Superconducting Electrodynamic Suspension (EDS) Maglev
ElectronicsSuperconducting electrodynamic suspension (EDS) maglev technology has strong potential for ultra-high-speed transportation, with advantages such as self-stability and a large suspension gap. The magneto-electric force relationship between the onboard superconducting magnet and figure-eight null-flux coils is the key to improving system performance ...
Haochen Shi +3 more
openaire +1 more source
Vertical Vibration Reduction of Maglev Vehicles Using Nonlinear Model Predictive Control
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 3, September 2026.ABSTRACT This work presents a novel nonlinear model predictive control (NMPC) strategy for high‐speed Maglev vehicles that explicitly incorporates mechanical suspension dynamics into the control model. Unlike conventional approaches, which often neglect the interaction between levitation magnet and car body motion, the proposed method enables ...
Mario Hermle +2 more
wiley +1 more source
Advanced Functional Materials, Volume 36, Issue 13, 12 February 2026.This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva +9 more
wiley +1 more source