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Stan Proskurov, Markus Lummer, Jan Werner Delfs, Roland Ewert, Jochen Kirz, Martin Plohr and Robert Jaron
Overcoming the problem of excessive engine noise at low altitudes is a formidable task on the way to developing a supersonic passenger aircraft. The focus of this paper is on the fan noise shielding during take-off, investigated as part of the DLR projec...
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Ahmad Falahzadeh, Daniel Mihai Toma, Marco Francescangeli, Damianos Chatzievangelou, Marc Nogueras, Enoc Martínez, Matias Carandell, Michael Tangerlini, Laurenz Thomsen, Giacomo Picardi, Marie Le Bris, Luisa Dominguez, Jacopo Aguzzi and Joaquin del Río
The use of marine cabled video observatories with multiparametric environmental data collection capability is becoming relevant for ecological monitoring strategies. Their ecosystem surveying can be enforced in real time, remotely, and continuously, over...
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Michaël Lematre and Marc Lethiecq
This paper presents the possibility of enhancement of the generation and detection of poorly energetic acoustic-guided waves in multilayered structures using a new design for a V(z) transducer. By defining a modified V(z) transducer composed of segmented...
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Francesca Terranova, Alessandra Raffa, Stefano Floridia, Clara Monaco and Livio Favaro
Cetacean bycatch is increasing worldwide and poses a threat to the conservation of several delphinids. The bottlenose dolphin (Tursiops truncatus) is frequently involved in bycatch incidents, due to its coastal distribution and opportunistic behaviour. T...
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Muhammad Hamza, Saima Bukhat Khan and Adnan Maqsood
The use of passive, active, or hybrid flow control techniques is often investigated to reduce the acoustic signature, wave drag, and aerodynamic heating associated with the supersonic flow regime. This research explores passive and hybrid flow control te...
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Steven Cooper
The operation of a wind turbine results in a series of pulses where there is a significant instantaneous increase in the amplitude of the pressure signal, dependent upon the wind speed at the turbine blades. The variations in the amplitude of the sound b...
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Filippo Giammaria Praticò, Rosario Fedele, Vitalii Naumov and Tomas Sauer
The current methods that aim at monitoring the structural health status (SHS) of road pavements allow detecting surface defects and failures. This notwithstanding, there is a lack of methods and systems that are able to identify concealed cracks (particu...
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Kaustubha Raghukumar, Grace Chang, Frank Spada and Craig Jones
NoiseSpotter is a passive acoustic monitoring system that characterizes, classifies, and geo-locates anthropogenic and natural sounds in near real time. It was developed with the primary goal of supporting the evaluation of potential acoustic effects of ...
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Arthur Trembanis, Alimjan Abla, Ken Haulsee and Carter DuVal
This study utilizes repeated geoacoustic mapping to quantify the morphodynamic response of the nearshore to storm-induced changes. The aim of this study was to quantitatively map the nearshore zone of Assateague Island National Seashore (ASIS) to determi...
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Hani Alhazmi and Rasim Guldiken
Quantifying bolt tension and ensuring that bolts are appropriately tightened for large-scale civil infrastructures are crucial. This study investigated the feasibility of employing the surface acoustic wave (SAW) for quantifying the bolt tension via fini...
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