Results 31 to 40 of about 1,231 (130)

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

Design and Control of EMS Magnetic Levitation Train using Fuzzy MRAS and PID Controllers [PDF]

open access: yes, 2020
In this paper, a Magnetic Levitation (MAGLEV) train is designed with a first degree of freedom electromagnetbased totally system that permits to levitate vertically up and down.
Alemayehu, Elias   +2 more
core  

Current status of the Dynamical Casimir Effect [PDF]

open access: yes, 2010
This is a brief review of different aspects of the so-called Dynamical Casimir Effect and the proposals aimed at its possible experimental realizations. A rough classification of these proposals is given and important theoretical problems are pointed out.
Dodonov, V. V.
core   +1 more source

Response of a Maglev Vehicle Moving on a Two-Span Flexible Guideway [PDF]

open access: yes
[[abstract]]This paper is intended to present a preliminary framework for dynamic interaction analysis of a maglev (magnetically levitated) vehicle running on a two-span guideway using a comprehensive iterative approach.
Ayre, Newmark, Ogata, Sinha
core   +1 more source

Energy dissipation prediction of particle dampers [PDF]

open access: yes, 2009
This paper presents initial work on developing models for predicting particle dampers (PDs) behaviour using the Discrete Element Method (DEM). In the DEM approach, individual particles are typically represented as elements with mass and rotational ...
Daniel, M.C., Rongong, J.A., Wong, C.X.
core   +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

Biosurfactant from Lactococcus lactis 53 inhibits microbial adhesion on silicone rubber [PDF]

open access: yes, 2004
The ability of biosurfactant obtained from the probiotic bacterium Lactococcus lactis 53 to inhibit adhesion of four bacterial and two yeast strains isolated from explanted voice prostheses to silicone rubber with and without an adsorbed biosurfactant ...
Bos   +25 more
core   +3 more sources

PM Magnetic Levitation Train Using Hybrid Electromagnetic- and Electrodynamic-Suspension System [PDF]

open access: yes, 2022
Recently, several studies have been conducted on magnetic levitation (maglev) trains for their development. This study investigates the methods of magnetic levitation railway and proposes a maglev train model.
35536   +4 more
core   +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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