Physical properties of wood and wood-based materials

P Niemz, W Sonderegger, T Keplinger, J Jiang… - Springer handbook of …, 2023 - Springer
This chapter describes the basic physical properties of wood and wood-based materials
such as density, thermal properties, electrical properties, friction, optical properties …

Autonomous dynamic line-scan continuous-wave terahertz non-destructive inspection system combined with unsupervised exposure fusion

J Hu, H Zhang, S Sfarra, E Pivarčiová, Y Yao… - NDT & E …, 2022 - Elsevier
The investigation of cultural heritage objects is commonly carried out by using non-
destructive inspection techniques. In fact, due to the artistic peculiarities of cultural heritage …

Feature extraction of wood-hole defects using wavelet-based ultrasonic testing

H Yang, L Yu - Journal of forestry research, 2017 - Springer
The primary bottleneck to extracting wood defects during ultrasonic testing is the accuracy of
identifying the wood defects. The wavelet energy moment was used to extract defect …

Characterizing defects in materials with fusion of thermography and shearography

Y Wei, L Ding, Y Han, Y Luo, Z Su, D Zhang - Measurement, 2021 - Elsevier
Thermography and shearography are optical techniques for detecting and characterizing
subsurface defects in structures. Both techniques possess unique advantages and abilities …

Looking through paintings by combining hyper-spectral imaging and pulse-compression thermography

S Laureti, H Malekmohammadi, MK Rizwan… - Sensors, 2019 - mdpi.com
The use of different spectral bands in the inspection of artworks is highly recommended to
identify the maximum number of defects/anomalies (ie, the targets), whose presence ought …

Evaluating quality of marquetries by applying active IR thermography and advanced signal processing

AO Chulkov, S Sfarra, N Saeed, J Peeters… - Journal of Thermal …, 2021 - Springer
Marquetry method is important in the culture of the Italian community as can be witnessed
from the large quantity of artworks that have been realized in this way. The monitoring of the …

Inspecting marquetries at different wavelengths: The preliminary numerical approach as aid for a wide-range of non-destructive tests

S Sfarra, P Theodorakeas, J Černecký… - Journal of …, 2017 - Springer
The present study is based on the non-destructive inspection of two marquetries
representing arms' coats, which were produced by the Technical University in Zvolen …

IR reflectography and active thermography on artworks: the added value of the 1.5–3 µm band

J Peeters, G Van der Snickt, S Sfarra, S Legrand… - Applied Sciences, 2018 - mdpi.com
Featured Application The work described in this study can assist in the selection of an
appropriate tool for art work inspection. In addition, the authors hope to provide an overview …

A spatiotemporal deep neural network useful for defect identification and reconstruction of artworks using infrared thermography

M Moradi, R Ghorbani, S Sfarra, DMJ Tax, D Zarouchas - Sensors, 2022 - mdpi.com
Assessment of cultural heritage assets is now extremely important all around the world. Non-
destructive inspection is essential for preserving the integrity of artworks while avoiding the …

A multi-technique nondestructive approach for characterizing the state of conservation of ancient bookbindings

S Sfarra, M Regi, M Tortora, C Casieri, S Perilli… - Journal of Thermal …, 2018 - Springer
The aim of this work is to evaluate the potentiality of a multi-technique nondestructive
approach for characterizing the state of conservation of precious bookbindings. In particular …