Results 41 to 50 of about 782,772 (345)

3D digital image correlation applied to birdstrike tests [PDF]

open access: yes, 2016
The development of new bird strike shielding materials for commercial aircrafts requires test campaigns. During these tests, measurement of the high speed deformation is needed to characterize and compare the mechanical response of the shielding samples ...
Barriere, Ludovic   +4 more
core   +3 more sources

Digital image correlation vibrometry with low speed equipment [PDF]

open access: yes, 2016
A low-cost method is presented which enables digital image correlation (DIC) with conventional cameras (i.e. not high-speed) to be used for determination of vibration deflected shapes via the use of a stroboscopic lamp and some simple ancillary circuits.
AW Fitzgibbon   +15 more
core   +1 more source

Plane Flow Analysis for a Profile Extrusion Die Using Digital Image processing Technique [PDF]

open access: yesEngineering and Technology Journal, 2012
This paper investigates the applicability of the proposed digital image correlation (DIC) system instead of traditional method by microscope to measure the strains in forward extrusion process, which conducted for rectangular section with plane strain ...
Salah K. Jawad   +2 more
doaj   +1 more source

Digital image correlation–based optical coherence elastography [PDF]

open access: yesJournal of Biomedical Optics, 2013
Optical coherence elastography (OCE) provides deformation or material properties, mapping of soft tissue. We aim to develop a robust speckle tracking OCE technique with improved resolution and accuracy. A digital image correlation (DIC)-based OCE technique was developed by combining an advanced DIC algorithm with optical coherence tomography (OCT ...
Cuiru, Sun   +4 more
openaire   +2 more sources

A Cross-Dichroic-Prism-Based Multi-Perspective Digital Image Correlation System

open access: yesApplied Sciences, 2019
A robust three-perspective digital image correlation (DIC) system based on a cross dichroic prism and single three charge-coupled device (3CCD) color cameras is proposed in this study.
Xizuo Dan   +5 more
doaj   +1 more source

μDIC: An open-source toolkit for digital image correlation

open access: yesSoftwareX, 2020
We here present a Digital Image Correlation toolkit, formulated as a Python package. This package aims at providing a complete toolkit for performing DIC analysis on experimental data, performing virtual experiments, as well as a framework for further ...
Sindre Nordmark Olufsen   +2 more
doaj   +1 more source

A Phase Correlation Anti-Noise Displacement Estimation Method Based on PSD Phase Screening

open access: yesApplied Sciences, 2022
When using digital images to obtain the displacement of a structure, noise is always a factor that greatly affects the accuracy of the displacement results.
Yunsheng Zhang   +5 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Quantifying and visualising change: strain monitoring of tapestries with digital image correlation [PDF]

open access: yes, 2013
A three-year research project at the University of Southampton (2007–2010) investigated whether monitoring techniques commonly used by engineers to assess the strength and durability of materials could be usefully applied to inform the condition ...
Dulieu-Barton, Janice M.   +1 more
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

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