Results 81 to 90 of about 12,397 (202)

Magnetic properties of colloidal suspensions of interacting magnetic particles

open access: yes, 2005
We review equilibrium thermodynamic properties of systems of magnetic particles like ferrofluids in which dipolar interactions play an important role.
  +30 more
core   +1 more source

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

open access: yesHeat Transfer, EarlyView.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira   +2 more
wiley   +1 more source

On the temperature dependence of ferrofluid susceptibility

open access: yesEPJ Web of Conferences, 2018
The fulfillment of Curie– Weiss laws for a ferrofluid is critically discussed. The results of investigations of the magnetic susceptibility temperature dependences of ferrofluid and dried powder of magnetic particles are presented.
Dikansky Yuri   +2 more
doaj   +1 more source

Ferrohydrodynamics: testing a new magnetization equation

open access: yes, 2001
A new magnetization equation recently derived from irreversible thermodynamics is employed to the calculation of an increase of ferrofluid viscosity in a magnetic field.
A.C. Levi   +12 more
core   +1 more source

Additive Manufacturing of Multimetallic Materials to Achieve Multifunctionality

open access: yesMetalMat, EarlyView.
Leveraging multimaterial directed energy deposition (DED), this work showcases four case studies of metallic multifunctional materials (MFMs). The significant potential of DED to achieve multifunctionalities in metallic materials is demonstrated, providing enlightenment to a wide range of engineering applications unseen in conventional metallic ...
Xiao Shang   +4 more
wiley   +1 more source

Analysis of Two-Layered Journal Bearing Lubricated with Ferrofluid

open access: yesMATEC Web of Conferences, 2014
The present study investigates the load capacity and friction coefficient for a two-layered journal bearing lubricated with ferrofluid. A modified Reynolds equation for a two-layered ferrofluid is derived using displaced infinitely long wire magnetic ...
Rao T. V. V. L. N.   +3 more
doaj   +1 more source

Microscale Assemblies of Magnetic Nanoparticles Produced by Dip‐Coating and Lift‐Off With Dissolvable Templates

open access: yesNano Select, EarlyView.
Microscale assemblies of magnetic nanoparticles (MNPs) were created using a combination of dip‐coating with ferrofluids and lift‐off with dissolvable photoresist templates. This technique produced large area arrays of geometrically precise MNP superstructures.
Samuel D. Oberdick   +2 more
wiley   +1 more source

Selective Wettability–Driven Evaporation‐Enhanced Redox Cycling for Robust and Ultrasensitive Detection of Viral Particles

open access: yesSmall Methods, EarlyView.
ABSTRACT Timely detection of viral infections, particularly in settings outside centralized laboratories, is essential for controlling outbreaks. Small electrochemical biosensors are appealing because they are fast, require microliter sample volumes, and can be integrated into portable devices.
Pouya Soltan Khamsi   +3 more
wiley   +1 more source

Magnetic Sensing with Ferrofluid and Fiber Optic Connectors

open access: yesSensors, 2014
A simple, cost effective and sensitive fiber optic magnetic sensor fabricated with ferrofluid and commercially available fiber optic components is described in this paper.
Daniel Homa, Gary Pickrell
doaj   +1 more source

Micropatterned Surfaces with Unidirectional Wetting Properties for Liquid Transport

open access: yesSmall Structures, EarlyView.
Micropatterned surfaces that guide droplets in a single direction are gaining attention for their role in liquid transport. This review explores how surface designs enable such behavior, from gravity‐driven flow to stimulus‐responsive movement. It also discusses fabrication techniques, design challenges, and emerging strategies to advance directional ...
Elham Lori Zoudani   +5 more
wiley   +1 more source

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