Results 31 to 40 of about 5,633 (244)

Investigation and Numerical Simulation of the Acoustic Target Strength of the Underwater Submarine Vehicle

Inventions, 2022
Modern weapon systems’ survival hinges on their detection capabilities more than anything else. In the active sonar equation, the acoustic target strength is crucial.
Kaveripakam Sathish, Rajesh Anbazhagan, Ravikumar Chinthaginjala Venkata, Fabio Arena, Giovanni Pau   +4 more
doaj   +1 more source

Dose-response relationships for the onset of avoidance of sonar by free-ranging killer whales

, 2014
The authors acknowledge the support of the MASTS pooling initiative (The Marine Alliance for Science and Technology for Scotland) in the completion of this study.
Samarra, Filipa Isabel Pereira, Paul J. Wensveen, Petter H. Kvadsheim, Antunes, Ricardo Nuno, Tyack, Peter Lloyd, Filipa I. P. Samarra, Ana Catarina Alves, Alves, Ana Catarina De Carvalho, Kleivane, Lars, Lam, Frans-Peter A., Ricardo N. Antunes, Miller, Patrick, Wensveen, Paulus Jacobus, Patrick J. O. Miller, Kvadsheim, Petter H., Ainslie, Michael A., Len Thomas, Frans-Peter A. Lam, Michael A. Ainslie, Lars Kleivane, Peter L. Tyack, Thomas, Len   +21 more
core   +1 more source

Changes in the acoustic activity of beaked whales and sperm whales recorded during a naval training exercise off eastern Canada

Scientific Reports, 2022
Experimental research has shown that beaked whales exhibit strong avoidance reactions to naval active sonars used during antisubmarine warfare training exercises, including cessation of echolocation and foraging activity.
Joy E. Stanistreet, Wilfried A. M. Beslin, Katie Kowarski, S. Bruce Martin, Annabel Westell, Hilary B. Moors-Murphy   +5 more
doaj   +1 more source

A Survey of Underwater Acoustic Data Classification Methods Using Deep Learning for Shoreline Surveillance

Sensors, 2022
This paper presents a comprehensive overview of current deep-learning methods for automatic object classification of underwater sonar data for shoreline surveillance, concentrating mostly on the classification of vessels from passive sonar data and the ...
Lucas C. F. Domingos, Paulo E. Santos, Phillip S. M. Skelton, Russell S. A. Brinkworth, Karl Sammut   +4 more
doaj   +1 more source

Optimizing Strategies for Non‐Invasive Prospection of Settlements in the Intertidal Zone: A Case Study From the Centre of the Drowned Medieval Village of Tolsende (Scheldt Estuary, the Netherlands)

Archaeological Prospection, EarlyView.
ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet, Sarah Bäumler, Stefan Krojer, Jeroen Verhegge, Wim De Clercq, Philippe De Smedt, Wouter H. Maes, Bente S. Majchczack, Immo Trinks, Dennis Wilken   +9 more
wiley   +1 more source

Diffusion Coefficient and Viscosity of Methyl Viologen Electrolyte Estimation Based on a Kinetic Monte Carlo Computational Approach Coupled with the Mean Square Displacement Method

Batteries &Supercaps, Volume 8, Issue 3, March 2025.
A novel and comprehensive 3D‐resolved kinetic Monte Carlo model coupled with mean square displacement analysis is introduced. This computational approach allows to explore, for the first time, the concentration and the state of charge effects on ionic diffusion coefficient and viscosity in methyl viologen‐based electrolytes used in organic redox flow ...
Jia Yu, Emmanuel Baudrin, Alejandro A. Franco   +2 more
wiley   +1 more source

Applying a Systems Thinking Approach to Circular Economy Transitions: Insights From the Use of a Sociotechnical Systems Approach Within the UK Hospitality Sector

Business Strategy and the Environment, EarlyView.
ABSTRACT Despite more than 20 years of research into sustainable tourism, the environmental impact of the UK hospitality sector remains high. A growing body of research into the concept of a circular economy (CE) demonstrates that transitioning to this way of working has significant benefits both for the environment and business outcomes.
Danielle Farrow, Hannah Collis, Fiona Charnley   +2 more
wiley   +1 more source

Calculation Method for UKF Target Motion Elements Based on Detection Information of Active and Passive Sonars

水下无人系统学报
The target motion element is important information in anti-submarine warfare, and its calculation results have a great influence on the hitting probability of the target, thus affecting combat decision-making.
Hongrui ZHANG, Jun SU, Qian LI, Bin LI, Xiaoming KOU   +4 more
doaj   +1 more source

Study on Underwater Target Tracking Technology Based on an LSTM–Kalman Filtering Method

Applied Sciences, 2022
In the marine environment, underwater targets are often affected by interference from other targets and environmental fluctuations, so traditional target tracking methods are difficult to use for tracking underwater targets stably and accurately.
Maofa Wang, Chuzhen Xu, Chuanping Zhou, Youping Gong, Baochun Qiu   +4 more
doaj   +1 more source

The Multifaceted Role of Trust in Circular Ecosystems: A Systematic Literature Review and Research Agenda

Business Strategy and the Environment, EarlyView.
ABSTRACT Circular ecosystems connect diverse actors who collaborate to close resource loops and pursue sustainable goals without centralized control. Such arrangements entail heightened interdependence and uncertainty, making trust, understood as the willingness to accept vulnerability based on positive expectations of others' behavior, a critical ...
Inken Hoeck, Tassilo Schuster
wiley   +1 more source