Results 21 to 30 of about 79,234 (312)

Dynamic Line-Scan Thermography for the Inspection of Paper-Based Materials: A Case Study Focused on an Ancient Book Cover

open access: yesProceedings, 2019
This work is focused on the use of line-scan thermography (LST) method for the inspection of an ancient book cover. Three widely used image post-processing techniques (i.e., pulsed phase thermography, partial least square thermography and principal ...
Hai Zhang   +3 more
doaj   +1 more source

Thermography for the Diagnosis of Acute Inflammation in the Paranasal Sinus

open access: yesInternational Archives of Otorhinolaryngology, 2020
Introduction Although computed tomography scanning is the most common method for the diagnosis of sinusitis today, X-ray imaging is still used in outpatient clinics. Because X-ray imaging is beneficial for patients with severe sinusitis but not for those
Tadashi Ishimaru, Hitomi Ishimaru
doaj   +1 more source

Latest Advances in Common Signal Processing of Pulsed Thermography for Enhanced Detectability: A Review

open access: yesApplied Sciences, 2021
Non-destructive testing (NDT) is a broad group of testing and analysis techniques used in science and industry to evaluate the properties of a material, structure, or system for characteristic defects and discontinuities without causing damage. Recently,
Yoonjae Chung, Seungju Lee, Wontae Kim
doaj   +1 more source

A review of miniaturised Non-Destructive Testing technologies for in-situ inspections [PDF]

open access: yes, 2018
Non-destructive testing (NDT) techniques have become attractive trends of product manufacturing, installation and post-maintenance in the aerospace, automotive and manufacturing industry, because of its benefits such as cost saving, easy to use and high ...
Addepalli   +12 more
core   +1 more source

Study of multi-long-pulse thermography using high-power fiber lasers

open access: yesAIP Advances, 2023
Active infrared thermography tests are performed using a high-power continuous fiber laser as the excitation source. Multi-long-pulses (MLPs) are used to detect deep defects in samples with reduced heating.
Gangbo Hu   +4 more
doaj   +1 more source

Detection and Characterization of Short Fatigue Cracks by Conduction Thermography

open access: yesEngineering Proceedings, 2023
Stimulated thermography is a very common non-destructive testing (NDT) technique used for a wide range of applications and materials. An external excitation source is required to stimulate the component and detect defects.
Ester D’Accardi   +3 more
doaj   +1 more source

Thermographic non-destructive evaluation for natural fiber-reinforced composite laminates [PDF]

open access: yes, 2018
Natural fibers, including mineral and plant fibers, are increasingly used for polymer composite materials due to their low environmental impact. In this paper, thermographic non-destructive inspection techniques were used to evaluate and characterize ...
Avdelidis, Nicolas P.   +7 more
core   +3 more sources

Two-Color-Thermography for Temperature Determination in Laser Beam Welding of Low-Melting Materials

open access: yesSensors, 2023
Spatial and temporal knowledge of temperature evolution is crucial in laser beam welding of low-melting materials such as aluminum alloys. Current temperature measurements are restricted to (i) one-dimensional temperature information (e.g., ratio ...
Karen Schwarzkopf   +3 more
doaj   +1 more source

Application of NDT thermographic imaging of aerospace structures [PDF]

open access: yes, 2019
This work aims to address the effectiveness and challenges of Non-Destructive Testing (NDT) inspection and improve the detection of defects without causing damage to the material or operator.
Avdelidis, N. P.   +9 more
core   +2 more sources

サーモグラフィーによる体表面温度の測定 3.体表面温度の回復率と末消血流量との相関 [PDF]

open access: yes, 1999
The body surface peripheral circulation in 12 cases, including 9 patients with diabetes mellitus who were suffering coldness, numbness or pain in their feet, and 3 healthy volunteers was examined using Laser-Doppler blood flowmetry. At the same time, the
Ashida, Kozo   +10 more
core   +1 more source

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