Results 251 to 260 of about 1,113,527 (283)

Energies of strained vicinal surfaces and strained islands

Physical Review B, 2001
We show that the interaction between the strain field of a surface step with uniform strain gives rise to a negative line energy of steps. The energy of a vicinal surface under compressive strain is found to be lower than the energy of the singular-crystal facet.
V. M. Kaganer, K. H. Ploog
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Surface strain on human intervertebral discs

Journal of Orthopaedic Research, 1986
AbstractThe biomechanical functions of the internal components of the intervertebral disc are not well understood. The surface deformation of 17 human cadaveric lumbar intervertebral discs was studied by photogrammetry by adhering small optical targets to the disc surface and thereby recording the length, bulge, and vertical height of lines on the disc
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Sea slicks and surface strain

Deep Sea Research Part A. Oceanographic Research Papers, 1990
Abstract The first detailed underway measurement of sea surface chemistry made in conjunction with a study of upper ocean physics indicated intense sea surface slicks associated with negative northward surface current strain (convergence favorable), low wind speeds and low mixing rates within a meandering filament of cool water.
J.N. Moum, D.J. Carlson, T.J. Cowles
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Surface strains in epitaxial systems

Applied Physics Letters, 1995
The stress state of heteroepitaxial film systems is examined using a boundary integral method together with boundary conditions that allow deflections at the substrate/film interface. It is found that for geometries that deviate from planar structures significant variations in surface strain and film energy arise.
L. J. Gray, M. F. Chisholm, Theodore Kaplan   +2 more
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Strain path and surface roughness

Mechanics of Materials, 1992
Abstract The strain path effect on the roughening of free surfaces of copper alloy is experimentally studied. It is observed that surface roughness is dependent of strain paths for a given effective strain level. However, if no reverse yielding occurs, this effect is not obvious.
Y.Z. Dai, F.P. Chiang
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Large-Strain Surface Modeling Using Plasticity

IEEE Transactions on Visualization and Computer Graphics
Modeling arbitrarily large deformations of surfaces smoothly embedded in three-dimensional space is challenging. We give a new method to represent surfaces undergoing large spatially varying rotations and strains, based on differential geometry, and surface first and second fundamental forms.
Jiahao Wen, Bohan Wang, Jernej Barbič
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Coatable strain sensors for nonplanar surfaces

Nanoscale
A versatile coatable strain (CS) sensor was developed using a wet process, achieving a high sensitivity (GF ≈ 100). It overcame traditional polymer limitations, enabling real-time growth measurements on complex biological and non-planar surfaces.
Chan Park, Jungmin Kim, Jeongbeam Kang, Byeongjun Lee, Haran Lee, Cheoljeong Park, Jongwon Yoon, Chiwon Song, Hojoong Kim, Woon-Hong Yeo, Seong J. Cho   +10 more
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Strain Transfer Analysis of Surface-Bonded MEMS Strain Sensors

IEEE Sensors Journal, 2013
The transmission of strain fields in adhesively bonded MEMS strain sensors is analyzed. In strain sensors that are attached to host structures using adhesive layers such as epoxy, complete strain transfer to the sensor is hindered due to the influence of the adhesive layer on the transfer.
Maziar Moradi, Siva Sivoththaman
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Polarized light reflection from strained sinusoidal surfaces

Applied Optics, 2003
We propose optical polarization imaging as a minimally invasive technique for measuring the mechanical properties of plastics and soft tissues through their change in reflectance properties with applied strain or force. We suggest that changes in surface roughness are responsible for the linear reflectivity changes with applied stretch or strain ...
Brian, Schulkin, Hee C, Lim, Nejat, Guzelsu, Glen, Jannuzzi, John F, Federici   +4 more
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Surface strain modulation of insoluble surface film properties

Physics of Fluids, 1994
The complex dispersion relation of capillary waves on water has been measured in a wavelength regime (λ∼1–2 cm) of interest to radar imaging. Two noninvasive sensors: a capacitive wave height antenna and a one-dimensional scanning laser slope gauge, are used to study the alteration of surface tension and surface elastic modulus in the presence of ...
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