Results 101 to 110 of about 20,096 (267)

A hybrid technique for residual stress analysis through stress function fitting

Latin American Journal of Solids and Structures
This work presents a hybrid experimental theoretical technique for residual stresses analysis of mechanical components. It was used the blind hole technique along with the Electronic Speckle Pattern Interferometry (ESPI) method and Airy stress functions ...
Marco Antonio Martins Cavaco
doaj   +1 more source

Speckle Statistics in Adaptively Corrected Images

, 2005
(abridged) Imaging observations are generally affected by a fluctuating background of speckles, a particular problem when detecting faint stellar companions at small angular separations.
Aime C., Boccaletti A., Canales V. F., Dainty J. C., Dainty J. C., Fried D. L., James R. Graham, Labeyrie A., Labeyrie A., Michael P. Fitzgerald, Roddier F., Scaddan R. J., Veran J.-P., Vernin J.   +13 more
core   +1 more source

A Range and Performance Optimized Version of the Computer-Aided Speckle Interferometry Algorithm for Real-Time Displacement-Strain Field Monitoring [PDF]

, 2021
Lionel Keene
openalex   +1 more source

Temporal Analysis of Speckle Images in Full-Field Interferometric and Camera-Based Optical Dynamic Measurement

Photonics
Vibration measurement is crucial in fields like aviation, aerospace, and automotive engineering, which are trending towards larger, lighter, and more complex structures with increasingly complicated dynamics. Consequently, measuring a structure’s dynamic
Guojun Bai, Yuchen Wei, Bing Chen, Yu Fu
doaj   +1 more source

From binaries to multiples I: Data on F and G dwarfs within 67 pc of the Sun

, 2014
Data on the multiplicity of F- and G-type dwarf stars within 67pc of the Sun are presented. This distance-limited sample based on the Hipparcos catalog contains 4847 primary stars (targets) with 0.590% complete.
Tokovinin, Andrei
core   +1 more source

High-resolution Imaging of a TESS Control Sample: Verifying a Deficit of Close-in Stellar Companions to Exoplanet Host Stars

The Astronomical Journal
The large number of exoplanets discovered with the Transiting Exoplanet Survey Satellite (TESS) means that any observational biases from TESS could influence the derived stellar multiplicity statistics of exoplanet host stars. To investigate this problem,
Colin Littlefield, Steve B. Howell, David R. Ciardi, Kathryn V. Lester, Mark E. Everett, Elise Furlan, Rachel A. Matson, Sergio B. Fajardo-Acosta, Crystal L. Gnilka   +8 more
doaj   +1 more source

Diffraction-Limited Speckle Interferometry and Modeling of the Circumstellar Envelope of R CrB at Maximum and Minimum Light [PDF]

, 2003
K. Ohnaka, T. Blöcker, K.-H. Hofmann, N. R. Ikhsanov, G. Weigelt, Y. Y. Balega, В. И. Шенаврин, B. F. Yudin, Y. S. Efimov   +8 more
openalex   +1 more source

3D digital holographic polarimetry of laser speckle fields formed by polycrystalline blood films: a tool for differential diagnosis of thyroid pathology

Frontiers in Physics
The principles and effectiveness of the method of laser polarization interferometry of dehydrated blood films (facies) for the differential diagnosis of thyroid pathology have been studied.
Olexander Ushenko, Olexander Ushenko, Olexander Bilookyi, Jun Zheng, Alexander Dubolazov, Olexander Olar, Olexander Olar, Yurii Ushenko, Yurii Ushenko, Iryna Soltys, Ivan Mikirin, Valeriy Skliarchuk, Zhebo Chen   +12 more
doaj   +1 more source

Optical-fiber Electronic Speckle Pattern Interferometry for Quantitative Measurement of Defects on Aluminum Liners in Composite Pressure Vessels [PDF]

, 2013
Seong Jong Kim, Young June Kang, Nak-Jung Choi   +2 more
openalex   +1 more source

Generation of an X-ray nanobeam of a free-electron laser using reflective optics with speckle interferometry. [PDF]

J Synchrotron Radiat, 2020
Inoue T, Matsuyama S, Yamada J, Nakamura N, Osaka T, Inoue I, Inubushi Y, Tono K, Yumoto H, Koyama T, Ohashi H, Yabashi M, Ishikawa T, Yamauchi K.   +13 more
europepmc   +1 more source