Results 31 to 40 of about 28,914 (258)

Determination of Caries Lesion Activity: Reflection and Roughness for Characterization of Caries Progression [PDF]

, 2018
Used by permission. © Operative Dentistry, Inc. Transmission or reproduction of protected items beyond that allowed by fair use requires the written permission of Operative Dentistry, Inc.Caries lesion progression is difficult to determine with visual ...
Ando, Masatoshi, Eckert, George J., Shaikh, S.   +2 more
core   +1 more source

Computer-generated Moiré profilometry

Optics Express, 2017
A new 3D measuring method based on computer-generated moiré fringes is proposed. The two AC components of the 0-degree and 90-degree phase-shifted fringe patterns on reference plane are prepared in advance. While the AC component of the single-shot deformed pattern is multiplied by the two prepared AC components, respectively, two computer-generated ...
Chengmeng, Li, Yiping, Cao, Cheng, Chen, Yingying, Wan, Guangkai, Fu, Yapin, Wang   +5 more
openaire   +2 more sources

Enamel surface roughness evaluation after bracket debonding: Comparison between light cure and self cure adhesive resin 3-Dimensional profilometric study

Indian Journal of Dental Research, 2022
Introduction: After fixed orthodontic treatment, following bracket removal, the debonding procedure should lead to restitutio ad integrum of the enamel or, at least, restore the enamel surface as closely as possible to its pretreatment condition ...
Deepak Chandrasekharan, Chandan Sourabh, Deenadayalan, Katepogu Praveen   +3 more
doaj   +1 more source

Heterodyne moiré surface profilometry

Optics Express, 2014
In this study, a novel moiré fringe analysis technique is proposed for measuring the surface profile of an object. After applying a relative displacement between two gratings at a constant velocity, every pixel of CMOS camera can capture a heterodyne moiré signal.
Wei-Yao, Chang, Fan-Hsi, Hsu, Kun-Huang, Chen, Jing-Heng, Chen, Ken Y, Hsu   +4 more
openaire   +2 more sources

Laser treatments of Nimonic 263 nickel-based superalloy

Zaštita Materijala, 2019
In this paper, the influence of parameters of laser processing (drilling, cutting, welding and laser shock peening) on microstructure of superalloy Nimonic 263 are investigated.
Dubravka Milovanović, Anđelka Milosavljević, Željko Radovanović, Radomir Jovičić   +3 more
doaj   +1 more source

Fractal Geometry: Surface Characterization of Printing Paper

Fractal and Fractional
This study investigates the surface characteristics of printing papers using fractal geometry, focusing on surface roughness and surface friction as independent properties.
Yong Ju Lee, Geon-Woo Kim, Tai-Ju Lee, Hyoung Jin Kim   +3 more
doaj   +1 more source

Improved method for phase wraps reduction in profilometry

, 2016
In order to completely eliminate, or greatly reduce the number of phase wraps in 2D wrapped phase map, Gdeisat et al. proposed an algorithm, which uses shifting the spectrum towards the origin.
Du, Guangliang, Lei, Zhenkun, Li, Hui, Li, Yanjie, Si, Shuchun, Wang, Minmin, Zhou, Canlin   +6 more
core   +1 more source

Characterization of Paper Surfaces by Friction Profilometry

BioResources, 2022
Friction profilometry is a powerful technique that is suitable for the surface characterization of paper products. In this technique, a stylus-type contact method that resembles papermaking processes is used for evaluating the quality attributes of ...
Byoung Geun Moon, Na Young Park, Young Chan Ko, Hyoung Jin Kim   +3 more
doaj   +2 more sources

Deep Learning for Single-Shot Structured Light Profilometry: A Comprehensive Dataset and Performance Analysis

Journal of Imaging
In 3D optical metrology, single-shot deep learning-based structured light profilometry (SS-DL-SLP) has gained attention because of its measurement speed, simplicity of optical setup, and robustness to noise and motion artefacts.
Rhys G. Evans, Ester Devlieghere, Robrecht Keijzer, Joris J. J. Dirckx, Sam Van der Jeught   +4 more
doaj   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source