Results 1 to 10 of about 45,331 (307)

Phase Selection in Capillary Breakup in AC Electric Fields

Langmuir, 2008
We study the detachment of conductive aqueous drops in ambient oil from an electrode in the presence of ac electric fields. Making use of the electrowetting effect, we determine the charge of the detached sessile drops. Drops are found to be discharged at high ac frequency in line with earlier predictions.
Malloggi, Florent, van den Ende, Dirk, Mugele, Frieder   +2 more
openaire   +3 more sources

Frequency dependence of electrorheological fluids in an ac electric field

Physical Review E, 1995
The frequency dependence of the shear stress of electrorheological (ER) fluid has been studied. We find that the shear stresses of some water-free ER fluids increase monotonically with the frequency and tend to reach saturated values at high frequency. The measurements on ${\mathrm{KNbO}}_{3}$-silicone-oil ER fluid show that the shear stresses under a $
Wen, Weijia, Lu, Kunquan, Li, Chenxi, Xie, Sishen   +3 more
openaire   +3 more sources

Conditions for Dynamic Localization in Generalized ac Electric Fields

Physical Review Letters, 2002
We examine the conditions for dynamic localization of electrons in a periodic potential due to an applied ac electric field. Using a general one-band model, we establish the surprising result that only electric fields that are discontinuous at all changes of sign can lead to exact dynamic localization.
M M, Dignam, C Martijn, de Sterke
openaire   +2 more sources

Reorganization of microfilament structure induced by ac electric fields

The FASEB Journal, 1996
AC electric fields induce redistribu‐tion of integral membrane proteins. Cell‐surface re‐ceptor redistribution does not consistently follow electric field lines and depends critically on the frequency of the applied ac electric fields, suggesting that mechanisms other than electroosmosis are involved.
M R, Cho, H S, Thatte, R C, Lee, D E, Golan   +3 more
openaire   +2 more sources

Nonconservative charged-particle swarms in ac electric fields

Physical Review E, 1999
A time-dependent multi-term technique has been developed and employed to solve the space- and time-dependent Boltzmann equation for charged-particle swarms in ac electric fields. This technique allows for the accurate calculation of both the full set of transport coefficients and the phase-space distribution function. This technique avoids restrictions
R D, White, R E, Robson, K F, Ness
openaire   +2 more sources

Aligned Immobilization of Proteins Using AC Electric Fields

Small, 2016
Protein molecules are aligned and immobilized from solution by AC electric fields. In a single‐step experiment, the enhanced green fluorescent proteins are immobilized on the surface as well as at the edges of planar nanoelectrodes. Alignment is found to follow the molecules' geometrical shape with their longitudinal axes parallel to the electric field.
Eva-Maria, Laux, Xenia, Knigge, Frank F, Bier, Christian, Wenger, Ralph, Hölzel   +4 more
openaire   +2 more sources

AC electric fields and particle deposition on a sphere

Radiation Protection Dosimetry, 2005
The National Radiological Protection Board's Independent Advisory Group on Non-ionising Radiation considered the possible effects on health of particle deposition in the vicinity of power lines and recommended, inter alia, that further studies were needed to reduce the uncertainties regarding the dependence of deposition on particle size and air flow ...
openaire   +2 more sources

Equilibrium electrodeformation of a spheroidal vesicle in an ac electric field

Physical Review E, 2013
In this work, we develop a theoretical model to explain the equilibrium spheroidal deformation of a giant unilamellar vesicle (GUV) under an alternating (ac) electric field. Suspended in a leaky dielectric fluid, the vesicle membrane is modeled as a thin capacitive spheroidal shell.
H, Nganguia, Y-N, Young
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Electrohydrodynamics of a compound vesicle under an AC electric field

Journal of Physics: Condensed Matter, 2017
Compound vesicles are relevant as simplified models for biological cells as well as in technological applications such as drug delivery. Characterization of these compound vesicles, especially the inner vesicle, remains a challenge. Similarly their response to electric field assumes importance in light of biomedical applications such as electroporation.
SINHA, KP, THAOKAR, RM
openaire   +3 more sources

Anisotropic colloidal interactions & assembly in AC electric fields

Soft Matter, 2021
We match experimental and simulated configurations of anisotropic epoxy colloidal particles in high frequency AC electric fields by identifying analytical potentials for dipole–field and dipole–dipole interactions.
Rachel S. Hendley, Isaac Torres-Díaz, Michael A. Bevan   +2 more
openaire   +2 more sources