Results 201 to 210 of about 63,244 (238)

Physical models of tissue in shear fields.

Ultrasound in medicine & biology, 2014
This review considers three general classes of physical as opposed to phenomenological models of the shear elasticity of tissues. The first is simple viscoelasticity. This model has a special role in elastography because it is the language in which experimental and clinical data are communicated. The second class of models involves acoustic relaxation,
Edwin L, Carstensen, Kevin J, Parker
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Models of shear-thickening behavior in physically crosslinked networks

Macromolecules, 1993
Shear-thickening effects are often observed in physically cross-linked networks formed by polymeric chains having a few localized, energetically favored interactions. The authors find that a possible explanation for these effects is the non-Gaussian behavior of the chains stretched by the shear flow. Two network models for unentangled telechelic chains
G. Marrucci, S. Bhargava, S. L. Cooper
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Physical Considerations on Shearing of M-H Curve

IEEE Translation Journal on Magnetics in Japan, 1987
The author discusses the discontinuous jump in the M-H curve of a magnetic body in the limit as its length is reduced toward zero, and notes that the demagnetizing field is not a useful concept in explaining this discontinuity. This stems from the tendency to ignore the limits to application of the vector magnetization M as a vector sum of magnetic ...
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Physics basis for a reversed shear tokamak power plant

Fusion Engineering and Design, 1997
The reversed shear plasma configuration is examined as the basis for a tokamak fusion power plant. Analysis of plasma equilibrium and ideal MHD stability, bootstrap current and current drive, plasma vertical stability and position control, divertor physics and plasma power balance are used to determine the operating point parameters that maximize ...
S.C. Jardin, C.E. Kessel, C.G. Bathke, D.A. Ehst, T.K. Mau, F. Najmabadi, T.W. Petrie   +6 more
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Shear wave ultrasound elastography: from physics to future

2012
Learning objectives: Elastography uses ultrasound to assess elasticity. Shear wave elastography (SWE) is a new technique that estimates tissue stiffness inreal time. It provides quantitative data, tissue stiffness heterogeneities are displayed on a color coded map.
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Statistical physics of shear flow: a non-equilibrium problem

Contemporary Physics, 2010
Complex fluids are easily and reproducibly driven into non-equilibrium steady states by the action of shear flow. The statistics of the microstructure of non-equilibrium fluids is important to the material properties of every complex fluid that flows, e.g.
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Horizontal shear zones: physical modeling of formation and structure

Izvestiya, Physics of the Solid Earth, 2009
On examples of ductile viscous materials (pastes), which demonstrated the deformational type of coagulation behavior and the reproduced zones of the horizontal shear of a brittle fracture, ductile flow, and intermediate types. The formation of coagulation agglomerates appeared well organized, both in terms of time and structurally. The found systems of
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Emerging exciton physics in transition metal dichalcogenide heterobilayers

Nature Reviews Materials, 2022
Emma C Regan, Yongxin Zeng, Long Zhang
exaly  

A materials physics perspective on structure–processing–function relations in blends of organic semiconductors

Nature Reviews Materials, 2023
Natalie Stingelin, Harald Ade, Jasper J Michels   +2 more
exaly  

Physics and Mathematics of Adiabatic Shear Bands

Applied Mechanics Reviews, 2003
TW Wright,, P Perzyna,
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