Results 251 to 260 of about 41,786 (310)
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Physica B: Condensed Matter, 1992
Abstract By separation of the soft degrees of freedom in the Leggett equations of spin dynamics, the equations of motion for textures in 3He-B are derived. These equations are applied to the analysis of motions of spatially uniform textures in magnetic field in a bulk liquid and in a slab geometry.
Fomin, Igor, Poddjakova, E. V.
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Abstract By separation of the soft degrees of freedom in the Leggett equations of spin dynamics, the equations of motion for textures in 3He-B are derived. These equations are applied to the analysis of motions of spatially uniform textures in magnetic field in a bulk liquid and in a slab geometry.
Fomin, Igor, Poddjakova, E. V.
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Textural singularities in superfluid3He-B
Journal of Low Temperature Physics, 1977The absorption signal occasionally found missing in the middle of resonance absorption lines in NMR is explained on the basis of a textural singularity of the anisotropy axis in the B phase of3He. The singularity combines with the field gradient present to give rise to an asymmetric hole in the signal with a singularity on the high-frequency side.
S. Engelsberg +2 more
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Perceptual studies on ultrasonic B-scan textures
Physics in Medicine and Biology, 1986A pilot study of the perceptual characteristics of ultrasonic textured images is described. Scans of four models performed on four real-time machines optimised for display of a normal liver were used. A trial with 22 observers indicated that the model that gave images closest to the liver image varied between machines.
R C, Chivers, I J, Davies, F M, Duarte
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Texture Analysis of Ultrasound B-Mode Images by Segmentation
Ultrasonic Imaging, 1984B-mode texture characterization by supervised methods of pattern recognition is subject to the following drawbacks: precise localization of the lesion to characterize is often difficult and, even when the lesion is well isolated, its texture can be corrupted by the presence of tumor non specific structures.
G E, Mailloux +3 more
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Collective-mode spectroscopy of textures in superfluid3He-B
Journal of Low Temperature Physics, 1989A phenomenological theory for the propagation of the real squashing modes in superfluid3He-B is presented. This allows one to calculate the splitting of the real squashing (rsq) mode spectrum caused by the combined effects of magnetic field, dispersion, and texture in the experimentally important range of magnetic fields from 0 to 103 Gauss.
M. M. Salomaa, G. E. Volovik
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Synthesis of fine details in B picture for dynamic textures
2017 IEEE International Conference on Image Processing (ICIP), 2017Dynamic textures are characterized with irregular motions that are often challenging for motion compensation as applied in the state of the art video codecs. Due to rapid and randomly evolving nature of such a signal, it is accompanied with very high energy in the residual.
Uday Singh Thakur +5 more
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NMR measurement on textures in rotating superfluid 3He-B
AIP Conference Proceedings, 1983Results from cw NMR measurements on superfluid 3He‐B in rotation are discussed. The measurements have been performed with the magnetic field oriented at different angles with respect to the rotation axis. The results illustrate the effect of rotation on different order parameter textures in a cylindrical container.
Yu. M. Bunkov, P. J. Hakonen, M. Krusius
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