Results 21 to 30 of about 97 (87)

Energy‐Saving Pathways for Thermoelectric Nanomaterial Synthesis: Hydrothermal/Solvothermal, Microwave‐Assisted, Solution‐Based, and Powder Processing

open access: yesAdvanced 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

open access: yesJournal 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

open access: yesFatigue &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

A prototype of an energy-efficient MAGLEV train: A step towards cleaner train transport

open access: yesCleaner 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

Research and technological prospects of applications for superconducting electrodynamic suspension

open access: yes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  

Levitation Stability and Hopf Bifurcation of EMS Maglev Trains

open access: yesMathematical 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

open access: yesElectronics
Superconducting 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

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced 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

Adaptive Deployable Structure Enabled by Actively Controlled Tensegrity for Space Debris Removal

open access: yesAdvanced Science, Volume 12, Issue 14, April 10, 2025.
An innovative adaptive deployable structure leveraging tensegrity principles to capture and remove medium‐ and small‐sized space debris. The structure's active rope control ensures stability across various positions, enabling adaptive deformation. This design not only addresses space debris removal but also supports advancements in deployable antennas ...
Endong Shang   +4 more
wiley   +1 more source

Metamaterial superconductors

open access: yesNanophotonics, Volume 7, Issue 5, Page 795-818, May 2018., 2018
Abstract Searching for natural materials exhibiting larger electron‐electron interactions constitutes a traditional approach to high‐temperature superconductivity research. Very recently, we pointed out that the newly developed field of electromagnetic metamaterials deals with the somewhat related task of dielectric response engineering on a sub‐100‐nm
Igor I. Smolyaninov   +1 more
wiley   +1 more source

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