Results 211 to 220 of about 297,791 (268)

Computational screening of piezoelectric constants in metal-organic frameworks: design principles and ferroelectric-like bond modulation.

J Mater Chem A Mater
Mula S, Huang C, Grozema F, van der Veen MA.   +3 more
europepmc   +1 more source

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Shock-Induced Polarization in Polar Materials

1979
Several authors [1–4] have shown that polar materials become polarized by the passage of an intense shock wave. The experimental arrangement is shown in Fig. 1. The polar material is the dielectric of a parallel-plate capacitor. An explosive charge is detonated next to one electrode and the shock transmitted into the dielectric causes a current to flow
M. De Icaza-Herrera, A. Migault, J. Jacquesson   +2 more
openaire   +1 more source

Polarizing of piezoelectric material

The Journal of the Acoustical Society of America, 1986
Electrically polarizable material (e.g., PVDF film) is poled by applying an electric field across the film. In the inventive technique, insulation is provided on the surface of the film. In a typical embodiment, a compliant dielectric annulus insulates the polarized region from the edges of the film. This substantially eliminates breakdown at the edges
Heinz von Seggern, Tsuey T. Wang
openaire   +1 more source

Material equations for electromagnetism with toroidal polarizations

Physical Review E, 2000
With regard to the toroid contributions, a modified system of equations of electrodynamics moving continuous media has been obtained. Alternative formalisms to introduce the toroid moment contributions in the equations of electromagnetism has been worked out. The two four-potential formalism has been developed.
V M, Dubovik, M A, Martsenyuk, B, Saha
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Polarization/radiometric based material classification

Proceedings CVPR '89: IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2003
A technique for identifying the material properties of objects in an image using multiple images taken through a polarizing lens at various rotations in front of a stationary camera (only the filter moves). Using these images, it is possible to obtain the classification of material surfaces at all points on a spectacular highlight.
Lawrence B. Wolff, Terrance E. Boult
openaire   +1 more source

Vector photochromism in polarization-sensitive materials

Optics Letters, 2014
The phenomenon of vector photochromism was observed in some high-efficient polarization-sensitive materials depending on the radiant exposure of the inducing linearly polarized actinic light. The phenomenon has the purely vector nature because the absorption of the irradiated and unirradiated areas of the material is practically identical when we use ...
Irakli, Chaganava, George, Kakauridze, Barbara, Kilosanidze, Yuri, Mshvenieradze   +3 more
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A new form of spontaneously polarized material

Physical Chemistry Chemical Physics, 2011
We report here the discovery of a new form of spontaneously polarized material. Examples of this material, in the form of films, demonstrate the property that they spontaneously harbour electric fields which may exceed 10(8) Vm(-1), achieving potentials of tens of volts on the film surface.
Plekan, Oksana, Cassidy, Andrew; id_orcid 0000-0001-8352-8721, Balog, Richard, Jones, Nykola C.; id_orcid 0000-0002-4081-6405, Field, David   +4 more
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Material detection with a CCD polarization imager

2010 IEEE 39th Applied Imagery Pattern Recognition Workshop (AIPR), 2010
We present a novel polarization image sensor by monolithically integrating aluminum nanowire optical filters with CCD imaging array. The CCD polarization image sensor is composed of 1000 by 1000 imaging elements with 7.4μm pixel pitch. The image sensor has a dynamic range of 65dB and signal-to-noise ratio of 60dB. The CCD array is covered with an array
Viktor Gruev, Rob Perkins, Timothy York
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Reflection and Polarization Properties of Powder Materials

Applied Optics, 1967
Directional radiance factors and polarization are presented for pure silicon carbide powder with an average albedo of 0.15 over a size range from 8 micro to 86 micro, pure aluminum oxide powder with average albedo about 0.85 over a size range from 0.1 micro to 86 micro, and for a mixture of one part silicon carbide to six parts aluminum oxide with ...
H H, Blau, E L, Gray, G M, Bourioius
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Replication materials for "Polarized populists"

2021
Replication materials for the article "Polarized populists. Dark campaigns, affective polarization, and the moderating role of populist attitudes"
Nai, Alessandro, Maier, Jürgen
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