Results 61 to 70 of about 594,002 (213)

Changes in dive behaviour during naval sonar exposure in killer whales, long-finned pilot whales, and sperm whales. [PDF]

, 2012
Anthropogenic underwater sound in the environment might potentially affect the behavior of marine mammals enough to have an impact on their reproduction and survival.
Tyack, P.L., Fahlman, A., Petter Helgevold Kvadsheim, Miller, P. J. O., Lam, F.P.A., Lam, F. P. A., Andreas eFahlman, F. P. A. Lam, Tyack, Peter L., P. J. O. Miller, Sivle, L.D., Tyack, P. L., Lise Doksæter Sivle, Frans-Peter eLam, Kvadsheim, P.H., Miller, P.J.O., Fahlman, Andreas, Sivle, Lise D, P. H. Kvadsheim, P. L. Tyack, Tyack, Peter Lloyd, Kvadsheim, P. H., Sivle, Lise Doksæter, Patrick eMiller, Miller, Patrick, L. D. Sivle, Miller, Patrick J. O., A. Fahlman, Peter eTyack, Kvadsheim, Petter H, Sivle, L. D., Lam, Frans Peter   +31 more
core   +2 more sources

Measurement of the moving objects’ bearing by coherent integration of the spectral components of signals in the passive sonar

Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The method of measuring bearing (azimuth) of a moving surface (underwater) object in the passive sonar is described. This method is considered to be a modification of signals phase comparing method.
S. R. Heister, D. N. Nguyen
doaj  

Comparative Field Evaluation of Active and Passive Transient‐Based Techniques for Pipeline Condition Assessment

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Hydraulic transient‐based techniques are increasingly applied for non‐intrusive condition assessment of buried water pipelines. This study presents systematic field experiments comparing active and passive approaches within the asbestos cement water supply network at the University of Canterbury.
Sirui Wang, Zhao Li, Pedro Lee, Tong‐Chuan Che, Yun‐jie Li, Ling Zhou   +5 more
wiley   +1 more source

Facilitating macrosystem biology with organismal‐scale airborne remote sensing: Challenges and opportunities

Functional Ecology, Volume 40, Issue 9, Page 2760-2776, September 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Emergent ecosystem properties, such as population and trait distributions, biodiversity and energy and water fluxes, occur because of the dynamic interactions of individuals in their environment.
Sarah J. Graves, Ritesh Chowdhry, Meilun Zhou, Ira Harmon, Ben Weinstein, S. K. Morgan Ernest, Alina Zare, Ethan P. White, Stephanie A. Bohlman   +8 more
wiley   +1 more source

Pitch shifting techniques for high-frequency passive sonar audio [PDF]

, 2017
Listening to passive sonar signals is a vital tool for sonar operators to classify underwater sound sources. While many passive sonar systems operate in the human auditory range (20 Hz to 20 kHz) there are a considerable number of high-frequency systems ...
Treptow, Aaron Charles
core   +1 more source

Cache‐Cache: Dans les souffles du Grand Fleuve…

Anthropology of Consciousness, Volume 37, Issue 2, Fall 2026.
ABSTRACT Between ventriloquism and divination, devotion and consecration, an old and sublime marine game unfolds each day, with living breaths shared in the waters of the great river. In Tadoussac, on the north shore of the St. Lawrence Estuary, at the mouth of the Saguenay, the rumor of whales has long resonated.
David Jaclin, Alexis Aubin‐Laperrière, Nicolas Cadieux, Patrick Weldon   +3 more
wiley   +1 more source

Muralismo como encargo participativo: Holografía de lo (in)visible en comunidades a’i cofán de la selva colombiana

Anthropology of Consciousness, Volume 37, Issue 2, Fall 2026.
ABSTRACT When mural art in indigenous communities is commissioned as a participatory project, several methodological, epistemological, and aesthetic questions arise. This text proposes a horizontal and investigative approach to what we can simply call ‘muralism in the A'i Cofán community context,’ not as significant works executed in communities, but ...
Daniel Alberto Restrepo Hernández, Andrés Rojas Guarín, Alexander Queta Criollo   +2 more
wiley   +1 more source

Recent Developments in SOBEK Passive Sonar Technology

, 2012
Surveillance of waterside locations for protection against threats from small fast surface vessels and underwater intruders is a very relevant but challenging problem. For this reason, the Netherlands Organisation for Applied Scientific Research (TNO) is
Fillinger, L., Hunter, A.J., Zampolli, M., Clarijs, M.C.   +3 more
core  

474: lighting and thermal performance of innovative shading devices: new insights into their aesthetics and control in a Mediterranean climate [PDF]

, 2008
With a view towards minimising energy demand for cooling and artificial lighting in buildings, this paper evaluates innovative shading devices and how they can balance a generous degree of control mastering seasonal natural light with thermal gains in a ...
Passive & Low Energy Architecture (PLEA), Calleja, Herman, Buhagiar, Vincent, 25th Conference on Passive and Low Energy Architecture   +3 more
core  

Quantitative measures for passive sonar texture analysis

Synthetic Data for Artificial Intelligence and Machine Learning: Tools, Techniques, and Applications IV
Passive sonar signals contain complex characteristics often arising from environmental noise, vessel machinery, and propagation effects. While convolutional neural networks (CNNs) perform well on passive sonar classification tasks, they can struggle with statistical variations that occur in the data. To investigate this limitation, synthetic underwater
Jarin Ritu, Alexandra Van Dine, Joshua Peeples   +2 more
openaire   +3 more sources