Results 21 to 30 of about 527,015 (300)

Quantitative Multiparameter Evaluation of Vacuoles in Intraocular Lenses Employing a High-Magnification Digital Microscopy Method

Journal of Ophthalmology, 2019
As small imperfections with micrometric sizes, fluid-filled vacuoles, also referred to as glistenings, in intraocular lenses (IOLs) have been known to induce significant unwanted light scattering that in several cases presumably cause complaints and ...
Vincent Spiezio, Bennett N. Walker, Don Calogero, Ilko K. Ilev   +3 more
doaj   +1 more source

Magnetorheological Fluid Filled Spring for Variable Stiffness and Damping: Current and Potential Performance

Frontiers in Materials, 2022
Magnetorheological (MR) fluid is a smart material utilized for semi-active damping devices thanks to its ability to become viscoelastic solid under a magnetic field and provide variable damping.
Stanislav Sikulskyi, Aryslan Malik, Daewon Kim   +2 more
doaj   +1 more source

The Stiffness and Damping Characteristics of a Dual-Chamber Air Spring Device Applied to Motion Suppression of Marine Structures

Applied Sciences, 2016
Dual-chamber air springs are used as a key component for vibration isolation in some industrial applications. The working principle of the dual-chamber air spring device as applied to motion suppression of marine structures is similar to that of the ...
Xiaohui Zeng, Liang Zhang, Yang Yu, Min Shi, Jifu Zhou   +4 more
doaj   +1 more source

Spring Device [PDF]

, 2020
openaire   +2 more sources

A Bi-Directional, Liquid-Spring-Magnetorheological-Fluid-Damper System

Frontiers in Materials, 2019
The goal of this study was to demonstrate the feasibility of a novel fail-safe, bi-directional liquid spring, controllable magnetorheological fluid damper (BDLS-CMRD).
Nicholas Maus, Faramarz Gordaninejad
doaj   +1 more source

A Study on the Improvement of the Durability of an Energy Harvesting Device with a Mechanical Stopper and a Performance Evaluation for Its Application in Trains

Micromachines, 2020
Durability is one of the critical issues concerning energy harvesting devices. Even with the energy harvesting device’s excellent performance design, the moving components, such as the spring, get damaged during operation.
Jaehoon Kim
doaj   +1 more source

New Mechanical Knee Supporter Device for Shock Absorption

Machines, 2022
Conventional knee supporters generally reduce knee pain by restricting joint movement. In other words, there were no mechanical knee supporters that functioned powerfully.
Hajime Shiraishi, Haruhiro Shiraishi
doaj   +1 more source

Magnetic Spring Device

, 2009
A cylindrical system is proposed that will store magnetic energy in a localized azimuthal field that can then be quickly released on Alfvenic timescales, accompanied by the formation of a flowing Z-pinch plasma. The magnetized plasma is MHD in character and will have unilateral axial momentum with Alfvenic speeds.
Hassam, A. B., Rodgers, J. C.
openaire   +2 more sources

An Arrhenius-Based Simulation Tool for Predicting Aging of Lithium Manganese Dioxide Primary Batteries in Implantable Medical Devices

Energies
This article presents a novel aging-coupled predictive thermo-electrical dynamic modeling tool tailored for primary lithium manganese dioxide (Li-MnO2) batteries in active implantable medical devices (AIMDs).
Mahsa Doosthosseini, Mahdi Khajeh Talkhoncheh, Jeffrey L. Silberberg, Hamed Ghods   +3 more
doaj   +1 more source

Research on the Seismic Isolation Effect of the Ring Spring–Friction Pendulum Bearing in the Dakai Underground Subway Station

Applied Sciences, 2023
During strong earthquakes, the vertical seismic force becomes an essential factor affecting shallow underground structures that cannot be ignored. In this situation, it is proposed that ring spring–friction pendulum two-way seismic isolation bearings be ...
Jie Zhang, Jie Jia
doaj   +1 more source