Results 61 to 70 of about 315,046 (231)

Q factors for antennas in dispersive media [PDF]

, 2014
Stored energy and Q-factors are used to quantify the performance of small antennas. Accurate and efficient evaluation of the stored energy is also essential for current optimization and the associated physical bounds. Here, it is shown that the frequency
Cismasu, Marius, Gustafsson, Mats, Tayli, Doruk   +2 more
core  

Impedance spectroscopy of ions at liquid-liquid interfaces

, 2013
The possibility to extract properties of an interface between two immiscible liquids, e.g., electrolyte solutions or polyelectrolyte multilayers, by means of impedance spectroscopy is investigated theoretically within a dynamic density functional theory ...
Bier, Markus, Reindl, Andreas
core   +1 more source

Casimir and van der Waals force between two plates or a sphere (lens) above a plate made of real metals [PDF]

, 2000
The Casimir and van der Waals forces acting between two metallic plates or a sphere (lens) above a plate are calculated accounting for the finite conductivity of the metals.
A. Lambrecht, A. Roy, A. Roy, C. M. Hargreaves, D. Sarid, E. Hult, E. I. Kats, E. M. Lifshitz, E. M. Lifshitz, F. Zhou, G. Barton, G. L. Klimchitskaya, G. L. Klimchitskaya, G. L. Klimchitskaya, H. B. G. Casimir, I. E. Dzyaloshinskii, I. Stokroos, J. Blocki, J. N. Israelachvili, J. R. Kirtley, J. Schwinger, K. Schram, L. D. Landau, M. Bordag, M. Bordag, M. Bordag, N. G. van Kampen, P. B. Johnson, P. H. G. M. van Blokland, P. W. Milonni, R. Wiesendanger, S. K. Lamoreaux, S. K. Lamoreaux, S. K. Lamoreaux, U. Hartmann, U. Hartmann, U. Mohideen, U. Mohideen, V. A. Parsegian, V. B. Bezerra, V. B. Bezerra, V. M. Mostepanenko, V. M. Mostepanenko, V. M. Mostepanenko, Y. Andersson   +44 more
core   +2 more sources

Localization Method for Implant Devices Using Electromagnetic Scattering Based on Sparse Reconstruction

IEEE Access, 2021
Herein, we propose a localization method for implant devices using electromagnetic scattering based on sparse reconstruction. We define the product of the total electric field and the complex relative permittivity as a new unknown variable, which is ...
Takahiro Ito, Daisuke Anzai, Jianqing Wang, Hirokazu Takana   +3 more
doaj   +1 more source

Electromagnetic interference shielding and radiation absorption in thin polypyrrole films

, 2007
Results of permittivity measurements, electromagnetic interference shielding effectiveness, and heat generation due to microwave absorption in conducting polymer coated textiles are reported and discussed.
Amiet, Andrew, Håkansson, Eva, Kaynak, Akif, Nahavandi, Saeid   +3 more
core   +1 more source

Design of Electromagnetic Cloaks and Concentrators Using Form-Invariant Coordinate Transformations of Maxwell's Equations [PDF]

, 2007
The technique of applying form-invariant, spatial coordinate transformations of Maxwell's equations can facilitate the design of structures with unique electromagnetic or optical functionality.
Alu, Cai, Cummer, Cummer, Daniel A. Roberts, David R. Smith, David Schurig, John B. Pendry, Kay, Kerker, Kildal, Leonhardt, Marco Rahm, Miller, Milton, Milton, Pendry, Post, Rusch, Schouten, Schurig, Schurig, Steven A. Cummer, Wood, Zolla   +24 more
core   +1 more source

Hubungan di antara status Sosio Ekonomi (SSE) keluarga dengan pencapaian akademk : satu kajian ke at as pelajar aliran teknikal di Sekolah Menengah Teknik Negeri Sembilan [PDF]

, 2004
Kajian ini bertujuan untuk melihat hubungan di antara status sosio ekonomi (SSE) keluarga dengan pencapaian akademik di kalangan pelajar aliran teknikal.
Mat Il, Mohd Zainal
core  

Heavily loaded ferrite-polymer composites to produce high refractive index materials at centimetre wavelengths

APL Materials, 2013
A cold-pressing technique has been developed for fabricating composites composed of a polytetrafluoroethylene-polymer matrix and a wide range of volume-fractions of MnZn-ferrite filler (0%–80%). The electromagnetic properties at centimetre wavelengths of
L. Parke, I. R. Hooper, R. J. Hicken, C. E. J. Dancer, P. S. Grant, I. J. Youngs, J. R. Sambles, A. P. Hibbins   +7 more
doaj   +1 more source

Dielectric spectroscopy of epoxy-based barium titanate nanocomposites: effect of temperature and humidity

IET Nanodielectrics, 2020
The information contained in the dielectric response of materials is useful to study the charge transport behaviour of dielectric materials at the molecular level.
Romana Zafar, Nandini Gupta
doaj   +1 more source

Polarizability calculation of vibrating nanoparticles for intensity of low frequency Raman scattering

, 2006
A new numerical method is introduced for calculating the polarizability of an arbitrary dielectric object with position dependent complex permittivity.
Bachelier, Del Fatti, Draine, Duval, Duval, Gersten, Griffiths, Jackson, Kelly, Landau, Margueritat, Mie, Montagna, Purcell, Ren, Taflove   +15 more
core   +3 more sources