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Milena Martarelli, Luigi Montalto, Paolo Chiariotti, Serena Simoni, Paolo Castellini, Gianmarco Battista and Nicola Paone
This paper presents an experimental study on acoustic attenuation of different types of face masks in use by the general population during the COVID-19 pandemic. In particular, measurements are performed on ten samples of masks, of which four are medical...
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Marta Solé, José-Manuel Fortuño, Mike van der Schaar and Michel André
Global change is the origin of increased occurrence of disturbance events in natural communities, with biological invasions constituting a major threat to ecosystem integrity and functioning. The apple snail (Pomacea maculata) is a freshwater gastropod m...
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Marta Solé, Marc Lenoir, José-Manuel Fortuño, Steffen De Vreese, Mike van der Schaar and Michel André
The salmon louse Lepeophtheirus salmonis is a major disease problem in salmonids farming and there are indications that it also plays a role in the decline of wild salmon stocks. This study shows the first ultrastructural images of pathological changes i...
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Hideki Kumagai, Kazuto Kobayashi, Sachiko Yoshida, Koji Yokoyama, Norio Hirota and Takanori Yamagata
Scanning acoustic microscopy reveals information on histology and acoustic impedance through tissues. The objective of the present study was to investigate whether acoustic impedance values in the liver over time reflect the progression of steatohepatiti...
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Maximilian Schmid, Sri Krishna Bhogaraju, E Liu and Gordon Elger
Reliability is one of the major requirements for power and opto-electronic devices across all segments. High operation temperature and/or high thermomechanical stress cause defects and degradation of materials and interconnects, which may lead to malfunc...
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Nguyen Thanh Phong Truong, Hyehyun Kim, Donghae Lee, Yeon-Hee Kang, Sungsoo Na and Junghwan Oh
In this study, a new approach was investigated to extract reference phases from the scanning acoustic microscope to calculate the speed of sound when dealing with the slope of the stage and fluctuation of the scanning lines. To capture the slope and the ...
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Anna Stepien, Magdalena Lesniak and Maciej SITARZ
Far-reaching technological progress, manufacturing, and rapidly advancing globalization dictate new conditions for the development and changes in the construction industry. Valorization of by-products and the use of secondary materials in the production ...
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Giacomo Fiocco, Tommaso Rovetta, Monica Gulmini, Anna Piccirillo, Claudio Canevari, Maurizio Licchelli and Marco Malagodi
Musical instrument coatings are generally made by multi-layered systems of organic and inorganic materials, applied on the wood substrate by the violin makers during the finishing process. This coating has paramount relevance for several aspects: protect...
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A. Habib, A. Shelke, U. Amjad, U. Pietsch and S. Banerjee
In this paper, a novel method to quantify the incubation of damage on piezoelectric crystal is presented. An intrinsic length scale parameter obtained from nonlocal field theory is used as a novel measure for quantification of damage precursor. Features ...
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Eva Grünwald, René Hammer, Robert Nuster, Philipp Aldo Wieser, Martin Hinderer, Ingo Wiesler, Rudolf Zelsacher, Michael Ehmann and Roland Brunner
Aluminium coatings and their characterization are of great interest in many fields of application, ranging from aircraft industries to microelectronics. Here, we present the simulation of acoustic wave propagation in aluminium coatings via the elastodyna...
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