Results 281 to 290 of about 614,484 (337)
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Polarisation-dependent dielectric processes in ferroelectric liquid crystals
Liquid Crystals, 2018The behaviour of dielectric relaxation process has been investigated in four ferroelectric liquid crystal (FLC) materials having different spontaneous polarisation (Ps) values.
Ambika Bawa +7 more
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Polarisation insensitive multifunctional metasurfaces based on all-dielectric nanowaveguides.
Nanoscale, 2018This work presents multifunctional metasurfaces for generating focused optical vortices of visible light.
N. Mahmood +10 more
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Conduction and dielectric polarisation in proteins and molecular complexes
Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1981For wealky conducting materials such as proteins and certain molecular solids the charge-transport mechanism often involves the phonon-assisted hopping of charge carriers between localised sites. It is shown here that for such materials a direct relationship exists between the steady-state conductivity and the relaxation time of the dielectric ...
S. Bone, J. Eden, P. Gascoyne, R. Pethig
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Core polarisation in the dielectric response of simple metals
Solid State Communications, 1983 Abstract The lowest core binding energy of a number of simple metals is close to the plasmon energy of the valence electrons. As a consequence the dielectric properties of these systems for ω of order of ωp are determined by the dynamics of both the valence- and the core electrons and by their mutual interaction.
K. Sturm
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Polarisation-dependent Attenuation Of Dielectric Cylinder Arrays
International Geoscience and Remote Sensing Symposium, 'Remote Sensing: Moving Toward the 21st Century'., 2005 Inventory of land use by remote sensing is in many cases associated with electromagnetic waves, originating from spacecraft or airplane, on dielectric cylinder arrays. In models or laboratory measurement many natural targets like cereals or coniferous trees may be represented by lossy dielectric cylinders Ill. Depending on the polarization the incident
W. Wiesbeck, D.I. Gihny, S. Riegger
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Dielectric polarisation and the form of the carbon dioxide molecule
Proceedings of the Indian Academy of Sciences - Section A, 19371. Accurate measurements of the dielectric coefficient ofcarbon dioxide have been made at 8 different temperatures from +20° to +210° C. 2. The value of polarisation is constant within the limits of experimental error, indicating that the gas is non-polar within the temperature range employed. 3.
K. Ramaswamy
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A strip loaded dielectric resonator antenna for circular polarisation [PDF]
Microwave and Optical Technology Letters, 2006 AbstractThe paper presents an experimental investigation of a cylindrical dielectric resonator antenna (DRA) with a conducting strip loaded on its top surface enabling circular polarisation. A simple 50Ω microstrip transmission line excites the antenna. The reflection, polarisation, and radiation characteristics of the antenna are studied.
Amit Kumar +3 more
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Correction of the influence of baseline artefacts and electrode polarisation on dielectric spectra
Bioelectrochemistry, 2000 The deconvolution of biological dielectric spectra can be difficult enough with artefact-free spectra but is more problematic when machine baseline artefacts and electrode polarisation are present as well. In addition, these two sources of anomalies can be responsible for significant interference with dielectric biomass measurements made using one- or ...
John E. Yardley +5 more
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Circular polarisation in ridge and dielectric loaded ridge waveguides
, 2000 An important concept in microwave engineering is that of circular polarisation. The two possibilities correspond to two equal vectors in space quadrature with one or the other advanced or retarded in time quadrature. Counter-rotating magnetic fields occur naturally on either side of the symmetry plane of an ordinary rectangular waveguide propagating ...
J. Helszajn
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IEEE transactions on dielectrics and electrical insulation, 2020
Dielectric response measurement based on the polarisation and depolarisation current (PDC) method is a diagnostic tool commonly employed to the insulation condition assessment of power apparatus.
S. Morsalin, B. Phung
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Dielectric response measurement based on the polarisation and depolarisation current (PDC) method is a diagnostic tool commonly employed to the insulation condition assessment of power apparatus.
S. Morsalin, B. Phung
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