|
|
|
|
|
Jessica J. Sportelli, Kelly M. Heimann and Brittany L. Jones
Bottlenose dolphins (Tursiops truncatus) rely on frequency- and amplitude-modulated whistles to communicate, and noise exposure can inhibit the success of acoustic communication through masking or causing behavioral changes in the animal. At the US Navy ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Nan Jia, Bin Li, Jun Zhu, Haifeng Wang, Yuliang Zhao and Wenwen Zhao
The identification of chicken sex before hatching is an important problem in large-scale breeding applications in the poultry industry. This paper systematically reviews the key techniques for in ovo sexing of chicken eggs before hatching and presents re...
ver más
|
|
|
|
|
|
|
|
|
|
|
Kostas Belibassakis, John Prospathopoulos and Iro Malefaki
Flapping-foil thrusters are systems that operate at a substantially lower frequency compared with marine propellers and are characterized by a much smaller power concentration. These biomimetic devices are able to operate very efficiently, offering desir...
ver más
|
|
|
|
|
|
|
|
|
|
|
Gavin James Lowes, Jeffrey Neasham, Richie Burnett, Benjamin Sherlock and Charalampos Tsimenidis
This paper presents the development of a low-energy passive acoustic vessel detector to work as part of a wireless underwater monitoring network. The vessel detection method is based on a low-energy implementation of Detection of Envelope Modulation On N...
ver más
|
|
|
|
|
|
|
|
|
|
|
Rianna Burnham, Svein Vagle, Peter Van Buren and Christie Morrison
The spatial extent of a dual-frequency echosounder and its potential impact on cetacean species were examined. Sound emissions of output frequencies of 83 kHz and 200 kHz were tested at a maximum distance of 400 m. This is the minimum vessel approach dis...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hüseyin Özkan Sertlek
The national measures in several European countries during the COVID-19 pandemic also affected offshore human activities, including shipping. In this work, the temporal and spatial variations of shipping sound are calculated for the years before and duri...
ver más
|
|
|
|
|
|
|
|
|
|
|
Nikolay Kanev
Resonant vessels in ancient and medieval buildings are the subject of some historical and acoustic research today. There have been a number of detailed surveys of European churches, where acoustic pots remain in the buildings. Despite the fact that in me...
ver más
|
|
|
|
|
|
|
|
|
|
|
Miles Parsons and Mark Meekan
Vessel noise is an acute and chronic stressor of a wide variety of marine fauna. Understanding, modelling and mitigating the impacts of this pollutant requires quantification of acoustic signatures for various vessel classes for input into propagation mo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Abouzar Ebrahimi, Mohammad Saeed Seif and Ali Nouri-Borujerdi
Noise generated by ships is one of the most significant noises in seas, and the propeller has a significant impact on the noise of ships, which reducing it can significantly lower the noise of vessels. In this study, a genetic algorithm was used to optim...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hedi Kanarik, Laura Tuomi, Pekka Alenius, Mikko Lensu, Elina Miettunen and Riikka Hietala
Safe navigation in complex archipelagos requires knowledge and understanding of oceanographic conditions in the fairways. We have studied oceanographic conditions and their relation to weather in a crossing in the Finnish archipelago, which is known to h...
ver más
|
|
|
|
|
|