Results 61 to 70 of about 476,683 (323)
, 2007 We describe an extension of multi-speckle diffusing wave spectroscopy adapted to follow the non-stationary microscopic dynamics in drying films and coatings in a very reactive way and with a high dynamic range.
Brun, Alice +3 more
core +2 more sources
BioResources, 2014 The bonding interface between bamboo elements and adhesives is presumed to be significantly influenced by the degree of adhesive penetration into the porous network of interconnected cells of bamboo surfaces.
Mingjie Guan, Cheng Yong, Lu Wang
doaj +1 more source
Strain Mapping by Digital laser Speckle Correlation, Validation and Comparison [PDF]
arXiv, 2020 This Paper introduces a new Non-Contact, Optical method for displacement measurements, and strain mapping as well as comparing it to traditional Digital Image correlation (DIC) and laser interferometry measurement method. This Method incorporates diffracted laser speckle images from the surfaces through DIC to track displacement and locate strain ...
arxiv
Singularities in Speckled Speckle: Screening [PDF]
, 2008 We study screening of optical singularities in random optical fields with two widely different length scales. We call the speckle patterns generated by such fields speckled speckle, because the major speckle spots in the pattern are themselves highly speckled.
arxiv +1 more source
A lightweight binocular vision‐supported framework for 3D structural dynamic response monitoring
Computer-Aided Civil and Infrastructure Engineering, EarlyView.Abstract Current three‐dimensional (3D) displacement measurement algorithms exhibit practical limitations, such as computational inefficiency, redundant point cloud data storage, reliance on preset targets, and restrictions to unidirectional measurements. This research aims to address computation efficiency and accuracy issues in binocular camera‐based
Yujie Ruan +4 more
wiley +1 more source
Full-field interferometry using infinity corrected optics [PDF]
, 2015 In this paper the construction of full-field (imaging) interferometers using infinity corrected optics commonly used in microscopy is discussed, with an emphasis on self-mixing interferometry configurations where the imaged light field is mixed with ...
Charrett, Thomas O. H., Tatam, Ralph P.
core +1 more source
Measurement of heat treatment induced residual stresses by using ESPI combined with hole-drilling method [PDF]
China Foundry, 2010 In this study, residual stresses in heat treated specimen were measured by using ESPI (Electronic Speckle-Pattern Interferometry) combined with the hole-drilling method.
Jie Cheng, Si-Young Kwak, Ho-Young Hwang
doaj
EPJ Web of Conferences, 2010 The hole-drilling strain gauge technique has become a standard method in measuring residual stresses [1]. Moiré interferometry combining hole-drilling method opens additional opportunity for full-field residual stress measurement using optical ...
Lyu B.I., Aoh J.N.
doaj +1 more source
SpeckleNN: A unified embedding for real-time speckle pattern classification in X-ray single-particle imaging with limited labeled examples [PDF]
arXiv, 2023 With X-ray free-electron lasers (XFELs), it is possible to determine the three-dimensional structure of noncrystalline nanoscale particles using X-ray single-particle imaging (SPI) techniques at room temperature. Classifying SPI scattering patterns, or "speckles", to extract single hits that are needed for real-time vetoing and three-dimensional ...
arxiv
New speckle pattern interferometry for precise in situ deformation measurements
Chinese Optics Letters (COL)A new electronic speckle pattern interferometry method is proposed to realize insitudeformation measurements. The feature of the method is the combination of a high-speed camera and multiple laser Doppler vibrometers (LDVs) for synchronous measurements ...
Ruyue Zhang, Yu Fu, Hong Miao
semanticscholar +1 more source