Results 251 to 260 of about 147,940 (291)
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SEG Technical Program Expanded Abstracts 1989, 1989
The anisotropic behaviour to be expected from various types of sediments is investigated by considering them as laminated media, with randomly varying elastic parameters. Modeling of two-component compounds (e.g. sandstoneshale) and different types of transitional and cyclic layering, is achieved by using different statistical processes to describe the
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The anisotropic behaviour to be expected from various types of sediments is investigated by considering them as laminated media, with randomly varying elastic parameters. Modeling of two-component compounds (e.g. sandstoneshale) and different types of transitional and cyclic layering, is achieved by using different statistical processes to describe the
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Bi-anisotropy in acoustic scattering problems
The Journal of the Acoustical Society of America, 2017Electric and magnetic dipole moments dominate the scattering properties of small nanoparticles in optics. Ordinarily, electric dipole moments are excited by the local electric field, and magnetic dipole moments by the magnetic field. Bi-anisotropy, or magneto-electric coupling, largely enriches the electromagnetic response of materials.
Li Quan, Andrea Alu
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Doppler shift anisotropy in small angle neutron scattering
Physical Review E, 1999The two-dimensional patterns in our small angle neutron scattering (SANS) experiments from rapidly moving aerosols are anisotropic. To test the kinematic theory of two-body scattering that describes the anisotropy, we conducted SANS experiments using a constant source of D2O aerosol with droplets moving at approximately 440 m/s, and varied the neutron ...
B E, Wyslouzil +4 more
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Vibrational Scattering Anisotropy Generated by Multichannel Quantum Interference
Physical Review Letters, 2010Based on angularly and vibrationally resolved electron spectroscopy measurements in acetylene, we report the first observation of anomalously strong vibrational anisotropy of resonant Auger scattering through the C 1s→π* excited state. We provide a theoretical model explaining the new phenomenon by three coexisting interference effects: (i ...
Catalin, Miron +6 more
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Anisotropy in Pulsar Interstellar Scattering
Chinese Journal of Astronomy and Astrophysics, 2006Pulsar observers have to contend with several effects of propagation through the ionized interstellar medium. I review those effects and how they can be used to study the interstellar plasma. Pulsars are normally observed under conditions of strong scintillation and show both diffractive and refractive effects. I emphasize the diffractive scintillation
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Anisotropy and multiple scattering in thick mammalian tissues
Journal of the Optical Society of America A, 2000A dual-channel Mach-Zehnder interferometer using heterodyne detection allowed us to measure simultaneously parallel and perpendicular polarization components through various mammalian tissues at a wavelength of lambda = 633 nm. By contrast with liver tissue, squeletic muscles of a few millimeters thickness exhibit strong anisotropic properties that ...
G, Jarry, F, Henry, R, Kaiser
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Light scattering by cellulose. V. Anisotropy scattering by wood fibers
Journal of Polymer Science Part C: Polymer Symposia, 1971AbstractSolid state light scattering patterns from single wood fibers were recorded using a laser as the light source. The scattering was recorded in the Hv mode; i.e., with the incident light beam vertically polarized, the scattered light was passed through a horizontal analyzer, thus permitting the recording of only the scattering arising from ...
Reto Muggli, R. Marton, A. Sarko
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Polarization Anisotropy in Lidar Multiple Scattering from Atmospheric Clouds
Topical Meeting on Optical Remote Sensing of the Atmosphere, 1985The use of polarization information in lidar measurements of the atmosphere, has proven to be a very useful technique, particularly for cloud diagnostics.1 The backscattering of liquid water droplets has very different polarization characteristics from the backscattering of ice crystals, and in many situations it is possible to use the polarization ...
S R, Pal, A I, Carswell
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Scattering Anisotropy Effect on Layered Thermoelectric Materials
Japanese Journal of Applied Physics, 2007The effect of scattering anisotropy caused by mass anisotropy on the thermoelectric figure of merit is investigated. The simplest electron transport model is considered assuming a single-band, parabolic energy dispersion relation and ionized impurity scattering, which is assumed to be elastic.
Kazuma Ikeda +2 more
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Anisotropy of electron scattering in potassium. II
Journal of Physics F: Metal Physics, 1977The anisotropic scattering of conduction electrons in potassium by dilute concentrations of rubidium or sodium impurities, is discussed in terms of two theoretical models. In one, the anisotropy derives from the lattice strain field surrounding a substitutional impurity, whilst in the other it arises from the variation in the character of the electron ...
B Llewellyn +3 more
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