Results 111 to 120 of about 5,633 (244)

Optimal Operating Depth Search for Active Towed Array Sonar using Simulated Annealing

, 2019
In an active towed array sonar, it is important to find the optimal operation depth. Generally, the optimal depth can be chosen via numerical simulations for all sonar depths and this imposes great burdens of time and cost.In this paper, an efficient ...
An, Sangkyum, Seong, Woojae, Lee, Keunhwa   +2 more
core   +1 more source

Aquatic macrophytes as nature‐based solutions: Challenges and opportunities across inland and coastal waters

Limnology and Oceanography Letters, Volume 11, Issue 4, July 2026.
Abstract Macrophytes are foundation species whose use as nature‐based solution (NbS) in aquatic ecosystems can help reduce climate change impacts while mitigating biodiversity loss. The discrepancy in research and application of macrophytes as NbS across inland and marine coastal ecosystems is an opportunity to expand the concept and learn from ...
Morgan Botrel, Roxane Maranger, Lindsay L. Trottier, Mathieu Cusson, Lars L. Iversen, Fanny Noisette, Christian Nozais, Katrine Turgeon, Andrea Bertolo, Thibaud André‐Alphonse, Simon Bélanger, Arthur de Grandpré, Jean‐Olivier Goyette, Sabine Hilt, Ladd Johnson, Valérie Langlois, Martin Laporte, Félix Lauzon, Brigitte Légaré, Anne Ola, Marie‐Pomme Presne‐Poissant, Matthieu Prugne, Caroline Susini, Richard Zimmerman, Irene Gregory‐Eaves   +24 more
wiley   +1 more source

Effectiveness Analysis of High Frequency Active Sonar

, 2012
The problem of target detection is of great interest for active sonar system in ocean environment. Since obstacle and mine are risk factors for operating ship and submarine, therefore in this thesis, modeling and simulation code based on the active sonar
박지성
core  

Adaptive Coverage Path Planning for Underwater Sonar Scans in Environments with Changing Currents

Journal of Marine Science and Engineering
This article considers underwater sonar scans that utilize a sonar-equipped Autonomous Marine Ship (AMS). The AMS finds an underwater object by towing a tow fish, having active sonars for imaging the sea bottom.
Jonghoek Kim
doaj   +1 more source

Effects of Wintertime Snow Depth Assimilation on Summertime Sea Ice Prediction Experiments Utilizing a Fully Coupled Regional Arctic Model With Perfect Boundary Conditions

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 7, July 2026.
Abstract During the past decades, the rapid decline of sea ice in the Arctic Ocean has substantially favored commercial navigation activities in the summertime. Numerical sea ice prediction on a seasonal scale plays a crucial role in guiding the programme of such activities, yet the role of snow depth data assimilation in numerical sea ice prediction ...
Xi Liang, Chengyan Liu, Xichen Li, Zhongxiang Tian, Zhuoming Ding, Fu Zhao, Ming Li, Na Liu, Jiaying Huang   +8 more
wiley   +1 more source

Advancing High‐Resolution Lake Bathymetry Reconstruction Through Geomorphologically Informed Deep Learning in High Mountain Asia

Water Resources Research, Volume 62, Issue 7, July 2026.
Abstract Accurate three‐dimensional (3D) lake bathymetry reconstruction is critical for water resources assessment and hydrological modeling yet remains constrained by data scarcity and oversimplified geometric assumptions. To address these challenges, we propose the Geomorphologically informed deep learning (GIDL) framework for high‐resolution 3D lake
Minglei Hou, Jiamu Chen, Jiahua Wei, Yang Shi, Wenqian Zhang, Shengling Hou, Zhen Qiao, Jianshi Zhao   +7 more
wiley   +1 more source

Antioxidants in Plant‐Based Food Matrices: From Structure–Activity and Degradation Kinetics to Formulation Design

Comprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 4, July 2026.
ABSTRACT Plant‐based antioxidants are widely incorporated into foods to retard oxidative deterioration and to deliver health‐related benefits. Yet, their in‐product and in vivo performance frequently diverges from predictions based on solution‐phase chemical assays, because matrix interactions, processing history, and host metabolism reshape both ...
Márcio Vargas‐Ramella, Carmen Silvia Favaro‐Trindade, Bárbara Miranda‐Vilela, Mariana Estefanuto‐Costa, Marina Franco‐Brito, Bibiana Alves dos Santos, Paulo Cezar Bastianello Campagnol   +6 more
wiley   +1 more source

Passive and active sonar prosecution of diesel submarines by nuclear submarines [PDF]

, 2008
This study analyses the trend for initial detection times using both passive and active sonar during submarine-on-submarine operations. Specifically, it simulates a nuclear powered submarine (SSN) searching for a diesel submarine in an environment where ...
Nelson, Erik J.
core  

Research on high-resolution processing of frequency modulation combined signal for active sonar detection

Frontiers in Physics
The Frequency Modulation Combined (FMC) waveform has delay (range)-Doppler (velocity) coupling resolution, and the traditional nonlinear high-resolution algorithms represented by Point-wise Product (PP) and Point-wise Minimization (PM) have good anti ...
Yaojun Jia, Pingbo Wang, Hongkai Wei, Qiang Chen, Yunhua Hu   +4 more
doaj   +1 more source

Do Coexisting Cryptic Species of Predatory Peacock Bass (Cichliformes: Cichlidae) Partition Their Niche?

Ecology of Freshwater Fish, Volume 35, Issue 3, July 2026.
ABSTRACT The mechanisms facilitating coexistence of cryptic species in sympatry have long puzzled ecologists. Cryptic species have nearly identical morphology and, therefore, would be presumed to have high niche overlap and potential for interspecific competition and competitive exclusion when resources are limited. Lowland rivers in South America have
Benton L. Fry, Kirk O. Winemiller
wiley   +1 more source