Zobrazeno 1 - 10
of 42
pro vyhledávání: '"R J, Churchill"'
Autor:
Thomas G. Philbin, R. J. Churchill
We consider a semi-infinite dielectric with multiple spatially dispersive resonances in the susceptibility. The effect of the boundary is described by an arbitrary reflection coefficient for polarization waves in the material at the surface, with spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0f0ffede39eb47b8089f29ecfefb03d
Autor:
Thomas G. Philbin, R. J. Churchill
We consider a semi-infinite spatially dispersive dielectric with unequal transverse and longitudinal susceptibilities. The effect of the boundary is characterized by arbitrary reflection coefficients for polarization waves in the material that propag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1257d9dd98eff1e542fbdfdd60f1c13
Publikováno v:
Physical Review B. 92
We transform the two-dimensional Dirac-Weyl equation, which governs the charge carriers in graphene, into a non-linear first-order differential equation for scattering phase shift, using the so-called variable phase method. This allows us to utilize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f01b8f23db93cb1ec624640b211bcb0
https://doi.org/10.1103/physrevb.92.165401
https://doi.org/10.1103/physrevb.92.165401
Autor:
Thomas G. Philbin, R. J. Churchill
We develop a classical microscopic model of a dielectric. The model features nonlinear interaction terms between polarizable dipoles and lattice vibrations. The lattice vibrations are found to act as a pseudo-reservoir, giving broadband absorption of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bea230232af549900e38af578aeb66c7
http://arxiv.org/abs/1508.04666
http://arxiv.org/abs/1508.04666
Autor:
R. J. Churchill, M. G. Niimura
Publikováno v:
International Journal of Infrared and Millimeter Waves. 11:405-414
Conventional orbitrons utilize the radially injected electrons for production of electromagnetic waves. In such a scheme, however, more than half of the electrons would not participate in the orbital motion around the anode due to the lack of acceler
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0842be80f6158b8c3709587be935d4a2
https://doi.org/10.1007/bf01010437
https://doi.org/10.1007/bf01010437
Publikováno v:
Journal of Materials Engineering. 12:59-68
The unique properties of amorphous alloys have led to uses in transformers, antitheft markers, motors, metal joining, and other applications. However, amorphous alloy ribbons are difficult to cut and shape using conventional techniques because of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a576bf021e23cbc536e410924b667b12
https://doi.org/10.1007/bf02834490
https://doi.org/10.1007/bf02834490
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461364740
There is a need within the NDE industry to evaluate the growth of damage such as fatigue cracking and plastic deformation over the life of a structure. To accomplish this aim, data collected over a period of time must be compared spatially while quan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::706199fe4034466dfa3771a6320c3db0
https://doi.org/10.1007/978-1-4615-3344-3_100
https://doi.org/10.1007/978-1-4615-3344-3_100
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781468457742
Thick filament-wound composite materials are particularly attractive for use in solid rocket motor structures. However, these materials are difficult to inspect because of the scattering losses associated with multiple fiber layers. Damage caused by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ac5ec521f862565cc9e8f1214e5520d
https://doi.org/10.1007/978-1-4684-5772-8_118
https://doi.org/10.1007/978-1-4684-5772-8_118
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781468457742
Filament wound graphite/epoxy cylinders are used in a number of applications because of their favorable strength-to-weight ratio. Eddy current techniques are receiving more attention for composite inspection because eddy currents detect broken fibers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e8d312ef408d36933037a1b99775ae3
https://doi.org/10.1007/978-1-4684-5772-8_125
https://doi.org/10.1007/978-1-4684-5772-8_125
Publikováno v:
NDT International. 23:357
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89cb3aa318c054465ba16df9781d5d11
https://doi.org/10.1016/0308-9126(90)90863-j
https://doi.org/10.1016/0308-9126(90)90863-j