Results 41 to 50 of about 92,312 (333)

Optimisation of Energy Transfer in Reluctance Coil Guns: Application to Soccer Ball Launchers

open access: yesApplied Sciences, 2020
Reluctance coil guns are electromagnetic launchers having a good ratio of energy transmitted to actuator volume, making them a good choice for propelling objects with a limited actuator space. In this paper, we focus on an application, which is launching
Valentin Gies   +6 more
doaj   +1 more source

Design Optimization and Comparison of Cylindrical Electromagnetic Vibration Energy Harvesters

open access: yesSensors, 2021
Investigating the coil–magnet structure plays a significant role in the design process of the electromagnetic energy harvester due to the effect on the harvester’s performance.
Tra Nguyen Phan   +3 more
doaj   +1 more source

Biefeld - Brown effect and space curvature of electromagnetic field

open access: yes, 2012
With applying of new proposed electromagnetic gravity Lagrangian together with Einstein-Hilbert equation not zero space curvature was derived. The curvature gives "a priory" postulate of equivalence of mass and electromagnetic field gravity properties ...
Antano, Maknickas Algirdas
core   +1 more source

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

open access: yesAdvanced Engineering Materials, Volume 27, Issue 13, July 2025.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong   +11 more
wiley   +1 more source

Numerical Analysis of Tube Expansion by Electromagnetic Forming Using Magnetic Field Shaper

open access: yesIEEE Access, 2020
Uneven axial deformation is the current main issue of the tubes electromagnetic bulging technology which calls for innovative and cost-effective solutions.
Li Qiu   +7 more
doaj   +1 more source

Comparative Study of Experimental Methods for Measuring Thermal Properties of 100Cr6 Steel Powders

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the thermal properties of 100Cr6 steel in both bulk and powder forms. Measuring the very low thermal conductivity typically exhibited by powders poses significant challenges. To address this, two novel measurement techniques—temperature gradient and finite laser pulse response—are introduced and evaluated by comparison with the ...
Junsheng Zhuo   +8 more
wiley   +1 more source

Study on the Influence of Coil Arrangement on the Output Characteristics of Electromagnetic Galloping Energy Harvester

open access: yesMicromachines, 2023
The arrangement of the induction coil influences the electromagnetic damping force and output characteristics of electromagnetic energy harvesters. Based on the aforementioned information, this paper presents a proposal for a multiple off-center coil ...
Lei Xiong   +5 more
doaj   +1 more source

Design of a Sensor Coil for Electromagnetic Induction Tomography [PDF]

open access: yesMATEC Web of Conferences, 2018
Electromagnetic tomography method works by utilizing magnetic field induced by coils that are given an electric current. An object with certain conductivity property interferes the magnetic field which will be sensed by the sensor in the form of voltage difference. Experiment using iron as an object has been conducted. In addition, parameters given are
Warsito P. Taruno   +4 more
openaire   +3 more sources

Magnetomotive forming for precision sizing and joining of large-diameter tubes [PDF]

open access: yes, 1969
Portable electromagnetic coil enables high precision expansion or constriction and joining of large diameter metal tubes. A nonconducting mandrel or forming die is used on the side of the tubes wall opposite the coil.
Bennight, J. D., Schwinghamer, R. J.
core   +1 more source

Magnetic Field‐Assisted Conductive Nerve Guidance Conduit Enabling Peripheral Nerve Regeneration with Wireless Electrical Stimulation

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a conductive nerve guidance conduit integrated with wireless electrical stimulation through alternating magnetic fields, which induces currents and creates a supportive microenvironment for nerve regeneration. In vivo studies show that this approach significantly enhanced myelin restoration, gastrocnemius muscle regeneration ...
Shiheng Liu   +7 more
wiley   +1 more source

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