Results 51 to 60 of about 48,493 (172)

Stochastic Non Destructive Testing simulation: sensitivity analysis applied to material properties in clogging of nuclear power plant steam generators [PDF]

, 2013
La version éditeur de cette publication est disponible à l'adresse suivante : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6514684A Non destructive Testing (NDT) procedure is currently used to estimate the clogging of tube support plates in
MOREAU, Olivier, BEDDEK, Karim, LE MENACH, Yvonnick, CLENET, Stephane   +3 more
core   +1 more source

Spatiospectral Photoacoustic Microscopy With Gain‐Switched Ti:Sapphire Laser for High‐Accuracy Molecular Dynamics Imaging

Laser &Photonics Reviews, EarlyView.
Spatiospectral photoacoustic microscopy is enabled by stable, wavelength‐tunable dual‐pulse excitation from a gain‐switched Ti:sapphire laser. Intrinsically synchronized 532‐nm and NIR‐I pulses provide single‐scan, co‐registered mapping of oxygen saturation and indocyanine green dynamics in vivo.
Yong‐Jae Lee, Thanh Dat Le, Dong Hoon Song, Jin Hee Im, Seong‐Young Kwon, Tae Young Jeong, Jung‐Joon Min, Changho Lee, Tae Joong Eom   +8 more
wiley   +1 more source

AI‐Powered GPR Characterization of Peatland Underground Cavity Induced by Smoldering Wildfire: A Laboratory Proof‐of‐Concept

Safety Science and Technology, EarlyView.
We present an AI‐assisted ground‐penetrating radar framework to noninvasively detect and quantify smoldering wildfire‐induced subsurface cavities in peatlands. A ResNet model accurately predicts cavity geometry from GPR images, enabling improved assessment of underground fire damage and hazards.
Zifan Zhang, Zilong Wang, Yichao Zhang, Yanghan Su, Shaorun Lin, Xinyan Huang   +5 more
wiley   +1 more source

Eksposure Condition Pada Self-Healing Beton Yang Korosi Menggunakan NDT Method: Analisis Bibliometric

Jurnal Bangunan, Konstruksi & Desain
Penelitian yang berkaitan dengan evaluasi beton pada eksposure condition atau paparan suhu tinggi sudah dilakukan oleh beberapa peneliti. Namun, penelitian yang evaluasi beton bakteria pada korosi dengan paparan suhu menggunakan non-destructive testing ...
Nur Fajrina, Ahmad Zaki
doaj   +1 more source

Integration of complementary methods for monitoring stress/strain of wind turbine blades structures

MATEC Web of Conferences, 2017
The most important part of wind turbine is the blade that must be tested during the fabrication and during the functioning when can be damaged by moisture absorption, fatigue, wind gusts or lightning strikes.
Savin Adriana, Steigmann Rozina, Iftimie Nicoleta, Stanciu Mariana Domnica, Danila Narcis Andrei, Barsanescu Paul-Doru   +5 more
doaj   +1 more source

Application of Digital Radiography (Dr) in an Approach to Evaluate the Technical Condition of MiG-29’s Vertical Stabilizers

Fatigue of Aircraft Structures, 2021
The purpose of the work presented was to evaluate the capabilities of digital radiography to detect cracks in the internal structure of MiG-29 vertical stabilizers.
Luziński Rafał, Synaszko Piotr, Dragan Krzysztof   +2 more
doaj   +1 more source

Probabilistic estimation of reliable sensor spacing for wire break detection in prestressed concrete using acoustic emission technique

Structural Concrete, EarlyView.
Abstract The acoustic emission (AE) technique has proven to be an effective method for detecting individual wire breaks in prestressed concrete structures affected by stress corrosion cracking (SCC). However, despite its widespread application, the quantitative assessment of AE monitoring reliability and optimal sensor placement remains unresolved ...
Max Fiedler, Steffen Marx
wiley   +1 more source

Effect of welding parameters on microstructure and mechanical properties of dissimilar AISI 304/ductile cast iron fusion welded joints

Scientific Reports
Problems associated with dissimilar fusion welding are mainly originated from the differences in melting points, coefficients of thermal conductivity and thermal expansion, …etc., and carbon content when welding dissimilar ferrous materials.
M. El-Shennawy, H. A. Abdel-Aleem, M. M. Ghanem, A. M. Sehsah   +3 more
doaj   +1 more source

Improving Depth Resolution of Ultrasonic Phased Array Imaging to Inspect Aerospace Composite Structures

Sensors, 2020
In this paper, we present challenges and achievements in development and use of a compact ultrasonic Phased Array (PA) module with signal processing and imaging technology for autonomous non-destructive evaluation of composite aerospace structures.
Reza Mohammadkhani, Luca Zanotti Fragonara, Janardhan Padiyar M., Ivan Petrunin, João Raposo, Antonios Tsourdos, Iain Gray   +6 more
doaj   +1 more source

A Multi‐Analytical Campaign on Reused Medieval Musical Parchment From the Archivio di Stato di Siena (Italy)

X-Ray Spectrometry, EarlyView.
ABSTRACT In this study, a non‐invasive, multi‐analytical approach combining hypercolorimetric multispectral imaging (HMI), stereomicroscopy, X‐ray fluorescence (XRF) spectroscopy, principal component analysis (PCA) and X‐ray radiography (RX) is used to investigate three reused musical parchment fragments dating from the late 14th or early 15th century ...
Mario Gentile, Chiara Delledonne, Michela Albano, Eleonora Verni, Antonio Calvia, Chaehoon Lee, Marco Malagodi, Giacomo Fiocco   +7 more
wiley   +1 more source