Results 21 to 30 of about 393,670 (279)

Improvement of a technique to assess ecological damage to the atmosphere from wildfires

Territorium: Revista Portuguesa de riscos, prevenção e segurança, 2019
Data on negative ecological consequences of forest and peat fires have been systematized. A specific woodland area of coniferous and deciduous trees in the Tomsk region has been studied.
Tatyana Belkova, Valeriy Perminov, Nikolay Alekseev   +2 more
doaj   +1 more source

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

, 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, Bilik, Broberg, Ditchburn, Garnier, Jolly, Li, McCann, Runnemalm, Titman, V Maldague, Vacharanukul, Zhao   +12 more
core   +1 more source

A review of non-destructive thermography techniques toward structural integrity of bio-composites [PDF]

, 2011
It is well known those two popular methods of testing; destructive testing based on fracture mechanics and non-destructive testing (NDT) which does not make any damage in the specimen.
Abdan, Khalina, Ali, Aidy, Dashtizadeh, Zahra   +2 more
core   +1 more source

Secondary Interface Echoes Suppression for Immersion Ultrasonic Imaging Based on Phase Circular Statistics Vector

Sensors, 2023
Immersion ultrasonic phased array imaging technology offers great advantages, particularly in coupling and automatic detection of industrial non-destructive testing (NDT).
Ming Chen, Zhenghui Xiong, Yan Jing, Xi He, Qingru Kong, Yao Chen   +5 more
doaj   +1 more source

The MFL technique – Basic application for PT cable break detection in concrete structures

MATEC Web of Conferences, 2018
From the beginning of building techniques creating pre-stressed and accordingly post-tensioned concrete structures until the late 1980ies manufacturers and construction companies dealt with pre-stressing steel material vulnerable to stress corrosion ...
Wilcke Martin, Walther Andrei, Szielasko Klaus, Youssef Sargon   +3 more
doaj   +1 more source

Phased Array Ultrasonic Sector Scan Imaging of Helicopter Damper Bolts Based on Vector Coherence Factor

Applied Sciences, 2022
Non-destructive testing of the cracks on the in-service bolt’s shank with size M18 is a challenging technical problem. Due to the weak echo energy of cracks with large buried depths, the conventional phased array ultrasonic sector scan imaging has a low ...
Jingxing Huang, Ming Chen, Qingru Kong, Liangzhong Xiao, Chao Lu, Yao Chen   +5 more
doaj   +1 more source

A comparative study of the elasto-plastic properties for ceramic nanocomposites filled by graphene or graphene oxide nanoplates

Nanotechnology Reviews, 2022
As nanoscale reinforcements, the graphene and graphene oxide nanoplates exhibit distinct mechanical and physical properties. The determination of the effective elasto-plastic behavior of nanoplate/ceramic nanocomposites and the different filling effects ...
Ma Lian-Hua, Zhang Kun, Pan Xiao-Dong, Zhou Wei   +3 more
doaj   +1 more source

Non-Destructive Evaluation of Hidden Defects Beneath the Multilayer Organic Protective Coatings Based on Terahertz Technology

Frontiers in Physics, 2021
An organic protective coating system plays an important role for the corrosion protection of offshore metallic structures. It is of practical importance to detect possible coating defects and evaluate coating performance for corrosion degradation ...
Wanli Tu, Shuncong Zhong, Manting Luo, Qiukun Zhang   +3 more
doaj   +1 more source

THz QCL - Based active imaging applied to composite materials diagnostic [PDF]

, 2010
This paper presents a CW raster-scanning THz imaging setup, used to perform Non-Destructive Testing of Kevlar and carbon fibre samples. The setup uses a 2.5 THz Quantum Cascade Laser as a source.
Barbieri, Stefano, Destic, Fabien, Massenot, Sébastien, Mollier, Jean-Claude, Petitjean, Yoann   +4 more
core   +1 more source

A Localized Analysis of the Sterilization Process by Direct Steam Monitoring

IEEE Access, 2017
Steam sterilization is a standard tool in the field of healthcare and medical equipment as it is economical, effective, and reliable. Considering the increase of antibiotic resistance and the challenge in sterilizing narrow tubes used for keyhole surgery,
Elisabeth Leiss-Holzinger, Karoline Felbermayer, Dzenan Ismic, Christian Rankl, Johannes Hillmann, Markus Brandstetter   +5 more
doaj   +1 more source