Results 61 to 70 of about 995,675 (222)

The “Lost Guardians” of Dante’s Inferno: Medium Wave Infrared Imaging Investigations of a XIV Century Illuminated Manuscript

Heritage, 2022
On the occasion of the 700th centenary of the death of Dante Alighieri, medium wave infrared imaging analysis of illuminations of the XIV-century code of the Divina Commedia (MS.
Noemi Orazi, Fulvio Mercuri, Cristina Cicero, Giovanni Caruso, Ugo Zammit, Sofia Ceccarelli, Stefano Paoloni   +6 more
doaj   +1 more source

Suppressing Photothermal Artifacts in Flexible Fluorescent Fiber‐Optic Sensors for Accurate and Precise In Situ Temperature Monitoring

Advanced Science, EarlyView.
A partial‐inner‐cladding optical fiber (PICOF) is developed to suppress photothermal artifacts in fluorescent fiber‐optic thermometry by isolating the sensing layer from regions prone to photothermal effects. This structural design strategy enables high‐fidelity operation at elevated excitation power, achieving high accuracy (maximum absolute error ...
Sijie Su, Jinjian Yu, Pengyuan Dong, Xin Wang, Jing Lyu, Jiulin Gan, Enhai Song, Qinyuan Zhang   +7 more
wiley   +1 more source

Improvement of the contrast-to-noise ratio in pulse-phase thermography by frequency dependent windowing

, 2022
Paper QIRT-2020-016, 10 S.Two modified algorithms for pulsed phase thermography were defined. The principle is to mask out parts of the thermal signal that only add noise but no significant information.
Netzelmann, Udo, Müller, David
core   +1 more source

Quantitative Nondestructive Evaluation of Carbon-Carbon Composites by Pulsed Infrared Thermography

NDT & E International, 1993
The sample used in this study is a 200 mm square plate of c/c composite material representative of the material which will be used for the hottest structures of the Hermes shuttle. This 3 mm thick sample contains natural defects in the core material. The defects to be detected and characterized are voids with a very small thickness compared to their ...
Delpech, P., Boscher, D., Lepoutre, F., Déom, A., Balageas, D.   +4 more
openaire   +4 more sources

Coupled Photocatalytic Hydrogen Production With Selective Biomass Valorization via Active Sites Construction and Electron Transport Channels Engineering

Carbon Energy, EarlyView.
A ternary CdS/1T‐WS2/CNTs heterojunction is in‐situ constructed via hydrothermal method, which is used for photocatalytic biomass reforming (biomass‐derived alcohols, lignin). It exhibits outstanding performance: H2 production rate of 26.17 mmol/g/h for benzyl alcohol (BA), benzaldehyde (BD) generation rate of 8.29 mmol/g/h, 90.06% BD selectivity, 100%
Ermiao Liang, Yi Li, Xue Liu, Ke Cheng, Baoqi Li, Mingcong Xu, Sha Luo, Chunhui Ma, Zhijun Chen, Zupeng Chen, Shouxin Liu, Wei Li   +11 more
wiley   +1 more source

Stacked denoising autoencoder for infrared thermography image enhancement

, 2021
Pulsed thermography is one of the most popular thermography inspection methods. During an experiment of pulsed thermography, a specimen is quickly heated, and infrared images are captured to provide information about the specimen's surface and subsurface
Ziang Wei, Jose Ricardo Tarpani, Maldague, Xavier, Ahmad Osman, Henrique Fernandes, Fernandes, Henrique, Osman, Ahmad, Xavier Maldague, Tarpani, Jose, Wei, Ziang   +9 more
core   +1 more source

Investigation on a new inducer of pulsed eddy current thermography

AIP Advances, 2016
In this paper, a new inducer of pulsed eddy current thermography (PECT) is presented. The use of the inducer can help avoid the problem of blocking the infrared (IR) camera’s view in eddy current thermography technique.
Min He, Laibin Zhang, Wenpei Zheng, Yijing Feng   +3 more
doaj   +1 more source

Principal component analysis for fast and automated thermographic inspection of internal structures in sandwich parts [PDF]

Journal of Sensors and Sensor Systems, 2014
Rising demand and increasing cost pressure for lightweight materials – such as sandwich structures – drives the manufacturing industry to improve automation in production and quality inspection.
D. Griefahn, J. Wollnack, W. Hintze
doaj   +1 more source

Automatic Detection and Identification of Defects by Deep Learning Algorithms from Pulsed Thermography Data

Sensors, 2023
Infrared thermography (IRT), is one of the most interesting techniques to identify different kinds of defects, such as delamination and damage existing for quality management of material.
Qiang Fang, Clemente Ibarra-Castanedo, Iván Garrido, Yuxia Duan, Xavier Maldague   +4 more
doaj   +1 more source

Heat Load Mitigation Studies in the W7‐X Stellarator Experiment

Contributions to Plasma Physics, EarlyView.
ABSTRACT During the experiments at the stellarator Wendelstein 7‐X (W7‐X) with fully water‐cooled plasma‐facing components (PFC), including carbon‐fiber composite (CFC) divertor targets with a thermal load capability of 10 MW/m2, high performance was achieved.
Dirk Naujoks, Amit Kharwandikar, Jasper Dettmar, Michael Endler, Joris Fellinger, Yu Gao, Joachim Geiger, Marcin Jakubowski, Thomas Sieber, Sebastian Thiede, Christian Voß, W7‐X Team   +11 more
wiley   +1 more source