Results 1 to 10 of about 5,017 (219)

Development of Novel Colorful Electrorheological Fluids [PDF]

open access: yesNanomaterials, 2022
Herein, the electrorheological (ER) performances of ER fluids were correlated with their colors to allow for the visual selection of the appropriate fluid for a specific application using naked eyes.
Suk Jekal   +10 more
doaj   +4 more sources

A Feedback Control Sensing System of an Electrorheological Brake to Exert a Constant Pressing Force on an Object [PDF]

open access: yesSensors, 2023
The paper presents the application of a strain gauge sensor and a viscous brake filled with an electrorheological (ER) fluid, which is a smart material with controlled rheological properties, by an electric field to the fluid domain.
Tomasz Spotowski   +6 more
doaj   +2 more sources

On the well-posedness problem of the electrorheological fluid equations [PDF]

open access: goldBoundary Value Problems, 2018
A kind of electrorheological fluid equations, with the orientated convection terms ut=div(a(x)|∇u|p(x)−2∇u)+b→(x)⋅∇uq,(x,t)∈Ω×(0,T), $$u_{t} =\operatorname{div}\bigl(a(x)|\nabla u|^{p(x)-2}\nabla u \bigr)+\vec {b}(x)\cdot\nabla u^{q},\quad (x,t)\in\Omega\
Huashui Zhan
doaj   +2 more sources

Structuring of electrorheological fluids in polymer matrices for miniature actuators [PDF]

open access: yesHeliyon
Miniature actuators are utilized in various application fields, from robotics to medical devices, where compact dimensions, precise movements, and cost-effectiveness are crucial factors.
Jana Ihrens   +3 more
doaj   +2 more sources

Sedimentation upon different carrier liquid in giant electrorheological fluid and its application [PDF]

open access: goldFrontiers in Materials, 2014
When giant electrorheological (GER) fluid is settled after some time, particles can precipitate out of the oil in a multistep process that involves the formation of larger particles, the aggregation of colloids, and eventual sedimentation.
Yaying eHong, Weijia eWen
doaj   +2 more sources

Precisely controlled microdroplet merging by giant-electrorheological-fluid-based microvalve [PDF]

open access: goldAIP Advances, 2022
A microfluidic device with a microvalve incorporated with intelligent giant electrorheological fluid (GERF) was proposed to actively and accurately control micro-droplet merging in various droplet scales.
Zheng Yang   +6 more
doaj   +2 more sources

Preparation of Cellulose/Laponite Composite Particles and Their Enhanced Electrorheological Responses [PDF]

open access: yesMolecules, 2021
Cellulose, as a natural polymer with an abundant source, has been widely used in many fields including the electric field responsive medium that we are interested in.
Zhao Liu   +4 more
doaj   +2 more sources

Features of the Mechanisms of Conductivity of the Electrorheological Fluids With Double Doped TiO2 Particles Under External Temperature Effects [PDF]

open access: goldFrontiers in Materials, 2019
Electrophysical and rheological characteristics of ER fluids with TiO2 particles doped with aluminum and phosphorus and having anatase structure are considered in an extended temperature range (5–100°C). The mechanisms of leakage currents in the ER fluid
Evguenia V. Korobko, Zoya A. Novikova
doaj   +2 more sources

Problems on electrorheological fluid flows [PDF]

open access: green, 2003
We develop a model of an electrorheological fluid such that the fluid is considered as an anisotropic one with the viscosity depending on the second invariant of the rate of strain tensor, on the module of the vector of electric field strength, and on ...
Hoppe, R. H. W., Litvinov, W. G.
core   +2 more sources

Sensors and Sensing Devices Utilizing Electrorheological Fluids and Magnetorheological Materials—A Review [PDF]

open access: yesSensors
This paper comprehensively reviews sensors and sensing devices developed or/and proposed so far utilizing two smart materials: electrorheological fluids (ERFs) and magnetorheological materials (MRMs) whose rheological characteristics such as stiffness ...
Yu-Jin Park, Seung-Bok Choi
doaj   +2 more sources

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