Results 241 to 250 of about 417,428 (298)

GPU-based shear–shear correlation calculation

Computer Physics Communications, 2014
Abstract Light rays are deflected when travelling through a gravitational potential: this phenomenon is known as gravitational lensing. It causes the observed shapes of distant galaxies to be very slightly distorted by the intervening matter in the Universe, as their light travels towards us. This distortion is called cosmic shear .
Miguel Cárdenas-Montes   +6 more
openaire   +1 more source

Range sensing based on shearing interferometry

Applied Optics, 1988
We report an optical range sensor that combines the advantages of focus sensing and interferometry. It works for specularly reflecting objects and for diffusely reflecting objects. The sensor is simple, robust against vibrations, and has high depth resolution. The aperture is very small, hence the sensor is small and minimizes shading problems.
G, Häusler   +3 more
openaire   +2 more sources

Flexural traveling wave excitation based on shear-shear mode

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2004
This paper presents a new mechanism for circular flexture traveling wave excitation, which is based on a shear-shear mode in a single piezoelectric disc with a center hole was poled along its radial direction. Its bottom electrode was divided into four parts, and the top electrode acted as common ground.
null Shuxian Dong   +5 more
openaire   +1 more source

Minimum Shear Reinforcement Based on Interface Shear Transfer

ACI Structural Journal, 1993
The requirement for minimum shear reinforcement in reinforced concrete beams is evaluated based on the treatment of interface shear transfer across a crack. A key parameter for this derivation is the required magnitude of contact normal stress on such interfaces, which controls the frictional shear resistance.
openaire   +1 more source

Fibre-based Shearing Interferometer

Optical Fabrication and Testing, 1998
In interferometry, two major problems exist. First, optical components can change the phase distribution, and second, the fringe density that can be too high to be resolved by the picture elements on a CCD camera.
openaire   +1 more source

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