Results 11 to 20 of about 274,553 (302)

Damping Force Modeling and Suppression of Self-Excited Vibration due to Magnetic Fluids Applied in the Torque Motor of a Hydraulic Servovalve

open access: yesEnergies, 2017
As a key component of hydraulic control systems, hydraulic servovalves influence their performance significantly. Unpredictable self-excited noise inside hydraulic servovalves may cause instability and even failure.
Wei Zhang, Jinghui Peng, Songjing Li
doaj   +1 more source

Magnetic Fluids and their Applications

open access: yesCommunications, 2018
Magnetic fluids contain magnetic nanoparticles which are dispersed in water or various types of oils. Magnetic nanoparticles are monodomain and their magnetic moments are oriented in the direction of the magnetic field.
Jozef Kudelcik, Maria Kudelcikova
doaj   +1 more source

Theory analyses and applications of magnetic fluids in sealing

open access: yesFriction, 2023
Magnetic fluids are the suspensions composed of magnetic nanoparticles, surfactants, and non-magnetic carrier liquids. Magnetic fluids are widely used in various fields, especially in sealing, because of their excellent features, including rapid magnetic
Decai Li   +3 more
doaj   +1 more source

A Novel Structured Magnetic Field Sensor Based on Photonic Crystal Fiber Filled with Magnetic Fluid

open access: yesCrystals, 2022
A novel structured magnetic field sensor based on dual-core photonic crystal fiber is proposed which has two elliptical central holes filled with magnetic fluid and some elliptical cladding air holes.
Jun Xu, Yuanyuan Gao, Haidong You
doaj   +1 more source

Wave Number of Maximal Growth in Viscous Magnetic Fluids of Arbitrary Depth [PDF]

open access: yes, 2000
An analytical method within the frame of linear stability theory is presented for the normal field instability in magnetic fluids. It allows to calculate the maximal growth rate and the corresponding wave number for any combination of thickness and ...
A. G. Boudouvis   +22 more
core   +2 more sources

Neutron Reflectometry Study of Transformer Oil-Based Magnetic Fluid Under Electric Field

open access: yesActa Electrotechnica et Informatica, 2021
This paper is focused on characterization of magnetic fluids (MFs) and experimental investigation of interfacial structural changes in transformer oil-based magnetic fluids (TOMFs) under the influence of electric field.
Karpets Maksym   +6 more
doaj   +1 more source

Formation and Behaviour of Active Droplets and Bubbles in a Magnetic Fluid in an Inhomogeneous Magnetic Field

open access: yesFluids, 2022
This work proposes a new technique for creating active bubbles and droplets with a non-magnetic core and a coating formed by a magnetic fluid. The procedure consists of the injection of a non-magnetic phase into a magnetic one that is supported by the ...
Evgeniy Sokolov   +3 more
doaj   +1 more source

From Single-Core Nanoparticles in Ferrofluids to Multi-Core Magnetic Nanocomposites: Assembly Strategies, Structure, and Magnetic Behavior

open access: yesNanomaterials, 2020
Iron oxide nanoparticles are the basic components of the most promising magnetoresponsive nanoparticle systems for medical (diagnosis and therapy) and bio-related applications.
Theodora Krasia-Christoforou   +5 more
doaj   +1 more source

Prandtl-number dependence of convection-driven dynamos in rotating spherical fluid shells [PDF]

open access: yes, 2005
The value of the Prandtl number P exerts a strong influence on convection-driven dynamos in rotating spherical shells filled with electrically conducting fluids.
Busse, F.H., Simitev, R.
core   +3 more sources

Apparent stress-strain relationships in experimental equipment where magnetorheological fluids operate under compression mode [PDF]

open access: yes, 2008
: This paper presents an experimental investigation of two different magnetorheological ( MR) fluids, namely, water-based and hydrocarbon-based MR fluids in compression mode under various applied currents.
A G Olabi   +9 more
core   +1 more source

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