Results 331 to 340 of about 1,445,030 (396)
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The dielectric properties of biological tissues: III. Parametric models for the dielectric spectrum of tissues.

Physics in Medicine and Biology, 1996
A parametric model was developed to describe the variation of dielectric properties of tissues as a function of frequency. The experimental spectrum from 10 Hz to 100 GHz was modelled with four dispersion regions.
S. Gabriel, R. Lau, C. Gabriel
semanticscholar   +1 more source

The dielectric properties of biological tissues: II. Measurements in the frequency range 10 Hz to 20 GHz.

Physics in Medicine and Biology, 1996
Three experimental techniques based on automatic swept-frequency network and impedance analysers were used to measure the dielectric properties of tissue in the frequency range 10 Hz to 20 GHz.
S. Gabriel, R. Lau, C. Gabriel
semanticscholar   +1 more source

Dielectric charging in MEMS with dielectric-dielectric contacts

2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013
This paper analyzes the dielectric charging effects in microelectromechanical capacitive switches with dielectric-dielectric contacts. Measurements were performed on switches with different contact topologies to characterize the charging of the surface and the bulk of the dielectric under different hold-down voltages and periods.
C. Shen   +5 more
openaire   +2 more sources

Dielectric relaxation and dielectric fluctuations [PDF]

open access: possibleJournal of Physics C: Solid State Physics, 1978
The relation between the frequency dependent dielectric constant and the fluctuations in the dielectric polarisation is re-examined from the standpoint of Felderhof's macroscopic theory of electric and magnetic fluctuations. Contributions of the electronic degrees of freedom to the polarisation are included in the formalism; they are treated as an ...
openaire   +1 more source

Observation of a single-beam gradient force optical trap for dielectric particles.

Optics Letters, 1986
Optical trapping of dielectric particles by a single-beam gradient force trap was demonstrated for the first reported time. This confirms the concept of negative light pressure due to the gradient force.
A. Ashkin   +3 more
semanticscholar   +1 more source

The Optical Properties of Metal Nanoparticles: The Influence of Size, Shape, and Dielectric Environment

, 2003
The optical properties of metal nanoparticles have long been of interest in physical chemistry, starting with Faraday's investigations of colloidal gold in the middle 1800s.
G. Schatz   +16 more
semanticscholar   +1 more source

Dielectric relaxation in solids

, 1983
This review presents a wide-ranging broad-brush picture of dielectric relaxation in solids, making use of the existence of a `universality' of dielectric response regardless of a wide diversity of materials and structures, with dipolar as well as charge ...
A. Jonscher
semanticscholar   +1 more source

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