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The Formation of 2D Holograms of a Noise Source and Bearing Estimation by a Vector Scalar Receiver in the High-Frequency Band J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-25 Sergey Pereselkov, Venedikt Kuz’kin, Matthias Ehrhardt, Yurii Matvienko, Sergey Tkachenko, Pavel Rybyanets
The holographic signal-processing method for a single vector scalar receiver (VSR) in the high-frequency band in shallow water is developed in the paper. The aim of this paper is to present the results of the theoretical analysis, numerical modeling, and experimental verification of holographic signal processing for a noise source by the VSR. The developed method is based on the formation of the 2D
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Multi-Frequency Noise Reduction Method for Underwater Radiated Noise of Autonomous Underwater Vehicles J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-25 Beibei Mao, Hua Yang, Wenbo Li, Xiaoyu Zhu, Yuxuan Zheng
The multi-frequency noisy vibration of an autonomous underwater vehicle (AUV) is a significant factor affecting the performance of shear probes mounted on the head of AUVs. Many efforts have been made to suppress mechanical radiation noise; however, conventional noise reduction methods have their limitations, such as mode mixing. In order to extract thorough information from the aliasing modes and
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An Underwater Localization Algorithm for Airborne Moving Sound Sources Using Doppler Warping Transform J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-25 Junjie Mao, Zhaohui Peng, Bo Zhang, Tongchen Wang, Zhaokai Zhai, Chuanxing Hu, Qianyu Wang
When an airborne sound source is in rapid motion, the acoustic signal detected by the underwater sensor experiences a substantial Doppler shift. This shift is intricately linked to the motion parameters of the sound source. Analyzing the Doppler shift characteristics of received acoustic signals enables not only the estimation of target motion parameters but also the localization of the airborne sound
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Global Strong Winds Occurrence Characteristics and Climate Index Correlation J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-25 Di Wu, Kaishan Wang, Chongwei Zheng, Yuchen Guo
Guided by entering the deep sea and achieving deep marine development in marine construction, the factors hindering marine construction cannot be ignored. Strong ocean winds have a devastating impact on tasks such as ship navigation, carrier aircraft take-off and landing, naval operations and military exercises, and affect the planning of sea routes and the development of the long-distance sea. This
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The Coastal Scenery of São Miguel Island, Azores Archipelago: Implications for Coastal Management J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-25 Claudia Tendero-Peiró, Francisco Asensio-Montesinos, Giorgio Anfuso, Hugo Corbí
In this study, coastal scenic beauty was assessed at 29 sites at São Miguel, which is one of the Azores Islands, i.e., a group of remote volcanic islands in the North Atlantic Ocean. The assessment was based on in situ observations and the use of the Coastal Scenic Evaluation System (CSES), which consists of a checklist with 26 physical- and anthropic-weighted parameters and the Fuzzy Logic Approach
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Artificial Neural Networks for Mapping Coastal Lagoon of Chilika Lake, India, Using Earth Observation Data J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-25 Polina Lemenkova
This study presents the environmental mapping of the Chilika Lake coastal lagoon, India, using satellite images Landsat 8-9 OLI/TIRS processed using machine learning (ML) methods. The largest brackish water coastal lagoon in Asia, Chilika Lake, is a wetland of international importance included in the Ramsar site due to its rich biodiversity, productivity, and precious habitat for migrating birds and
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An Adaptive Large Neighborhood Search Algorithm for Equipment Scheduling in the Railway Yard of an Automated Container Terminal J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-25 Hongbin Chen, Wei Liu
In container sea–rail combined transport, the railway yard in an automated container terminal (RYACT) is the link in the whole logistics transportation process, and its operation and scheduling efficiency directly affect the efficiency of logistics. To improve the equipment scheduling efficiency of an RYACT, this study examines the “RYACT–train” cooperative optimization problem in the mode of “unloading
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Multivariate USV Motion Prediction Method Based on a Temporal Attention Weighted TCN-Bi-LSTM Model J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-25 Yuchao Wang, Zixiang Tian, Huixuan Fu
Unmanned surface vehicle (USV)’s motion is represented by time-series data that exhibit highly nonlinear and non-stationary features, significantly influenced by environmental factors, such as wind speed and waves, when sailing on the sea. The accurate prediction of USV motion, particularly crucial parameters, such as the roll angle and pitch angle, is imperative for ensuring safe navigation. However
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Slamming Characteristics Due to the Special Shape of New Sandglass-Type Model in Waves by Comparing with Cylindrical Model J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-25 Wenhua Wang, Taiwei Piao, Chong Geng, Kedong Zhang, Zhongyu Wang, Yi Huang
For the new sandglass-type FPSO, the unique shape of its floating body with oblique side and external expansion can significantly improve the motion performance, but meanwhile may result in specific slamming characteristics in waves. On this basis, this paper establishes a CFD method including numerical wave-tank technique based on the Open FOAM platform. Therein, the velocity-inlet boundary method
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Rare Earth Elements in Shells of Black Sea Molluscs: Anomalies and Biogeochemical Implications J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-25 Sergey V. Kapranov, Vitaliy I. Ryabushko, Juliya D. Dikareva, Larisa L. Kapranova, Nikolay I. Bobko, Sophia Barinova
Rare earth elements (REE) are a class of increasingly used high-tech product components and new emerging environmental pollutants, which are accumulated, in particular, in marine biota. In this study, REE contents were estimated in shells of several molluscs common in the Black Sea. The summed REE contents in mollusc shells decreased in the following order of species: Magallana gigas = Anadara kagoshimensis
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Techno-Economic Evaluation of Direct Low-Pressure Selective Catalytic Reduction for Boil-Off Gas Treatment Systems of NH3-Fueled Ships J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-24 Sangmin Ji, Wongwan Jung, Jinkwang Lee
This study proposes a feasible solution for boil-off gas (BOG) treatment to facilitate NH3 fuel use by ocean-going ships, which is currently considered an alternative fuel for ships. Two systems were designed and analyzed for BOG in IMO Type-A NH3 fuel storage tanks for 14,000 TEU container ships. First, BOG lost inside the storage tank minimized economic losses through the onboard re-liquefaction
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Characteristics and Environmental Indications of Grain Size and Magnetic Susceptibility of the Late Quaternary Sediments from the Xiyang Tidal Channel, Western South Yellow Sea J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-24 Fei Xia, Dezheng Liu, Yongzhan Zhang
To reveal the characteristics and environmental indications for the combination of the grain size and magnetic susceptibility of coastal sediments, we provided a necessary basis for further study on their genetic mechanisms. Based on the data of grain size and magnetic susceptibility of the 36.10 m long core 07SR01 sediments in the Xiyang tidal channel of western South Yellow Sea, we analyzed their
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Numerical Study on the Swimming and Energy Self-Sufficiency of Multi-Joint Robotic Fish J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-24 Guodu Liang, Zhiqiang Xin, Quanlin Ding, Songyang Liu, Liying Ren
Energy is one of the primary challenges in the long-term operation of robotic fish. The research on combining wave energy-harvesting technology with robotic fish for energy supplementation is not extensive, and there is insufficient comprehensive analysis on energy harvesting from waves and energy costs during swimming. Therefore, the energy self-sufficiency of multi-joint robotic fish is investigated
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Mid-Deep Circulation in the Western South China Sea and the Impacts of the Central Depression Belt and Complex Topography J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-24 Hongtao Mai, Dongxiao Wang, Hui Chen, Chunhua Qiu, Hongzhou Xu, Xuekun Shang, Wenyan Zhang
As a key component of meridional overturning circulation, mid-deep circulation plays a crucial role in the vertical and meridional distribution of heat. However, due to a lack of observation data, current knowledge of the dynamics of mid-deep circulation currents moving through basin boundaries and complicated seabed topographies is severely limited. In this study, we combined oceanic observation data
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Stiffness Anisotropy and Micro-Mechanism of Calcareous Sand with Different Particle Breakage Ratios Subjected to Shearing Based on DEM Simulations J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-24 Yan Gao, Ketian Sun, Quan Yuan, Tiangen Shi
Stress-induced anisotropy in calcareous sand can cause an uneven displacement in island reef engineering. In this study, stiffness, as a quantitative indicator, is explored to reveal the stress-induced anisotropy in calcareous sand. Based on the discrete element method, the stiffness anisotropic characteristics of calcareous sand during shearing, as well as the impact of particle breakage, are investigated
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Pore Pressure Prediction for High-Pressure Tight Sandstone in the Huizhou Sag, Pearl River Mouth Basin, China: A Machine Learning-Based Approach J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-24 Jin Feng, Qinghui Wang, Min Li, Xiaoyan Li, Kaijin Zhou, Xin Tian, Jiancheng Niu, Zhiling Yang, Qingyu Zhang, Mengdi Sun
A growing number of large data sets have created challenges for the oil and gas industry in predicting reservoir parameters and assessing well productivity through efficient and cost-effective techniques. The design of drilling plans for a high-pressure tight-sand reservoir requires accurate estimations of pore pressure (Pp) and reservoir parameters. The objective of this study is to predict and compare
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Grid-Impedance-Based Transient Current Control for Offshore Wind Turbines under Low-Voltage Fault J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-23 Zhichao Yang, Bingtuan Gao, Zeyu Cao, Jinyuan Fang
In order to enhance the transient stability of offshore wind turbines (OWTs) in marine energy systems, the grid codes stipulate that OWTs should possess the low-voltage ride-through (LVRT) ability of being grid-tied and injecting reactive current during grid fault. However, the grid-side converter (GSC) of OWTs may lose stability under weak grid or severe fault conditions due to inaccurate current
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Numerical Investigation of Local Scour Protection around the Foundation of an Offshore Wind Turbine J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-23 Ning Zhang, Bingqian Yu, Shiyang Yin, Caixia Guo, Jianhua Zhang, Fanchao Kong, Weikun Zhai, Guodong Qiu
The pile foundations of offshore wind turbines face serious problems from scour damage. This study takes offshore wind turbine monopile foundations as the research object and proposes an innovative anti-scour device for the protection net. A numerical simulation research method based on CFD-DEM was used to model the local scour of the pile foundation and protection net. The validity of the numerical
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Assessment of the Carbon Footprint of Large Yellow Croaker Farming on the Aquaculture Vessel in Deep Sea in China J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-23 Fei Fan, Jianli Zheng, Huang Liu, Mingchao Cui
The present study conducted a Life Cycle Assessment (LCA) to evaluate the carbon emissions associated with large yellow croaker farming on Aquaculture Vessel “Conson No. 1”. The functional unit considered was 1 kg of fresh large yellow croakers delivered to a wholesaler. The life cycle of large yellow croaker farming on the aquaculture vessel was divided into five processes: feed production (FP), ship
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Distributed Formation–Containment Tracking Control for Multi-Hovercraft Systems with Compound Perturbations J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-23 Zhipeng Fan, Yujie Xu, Mingyu Fu
Aiming at the problem of hovercraft formation–containment control with compound perturbations including model uncertainties and ocean disturbances, a distributed control algorithm for underactuated hovercraft formation–containment is proposed by combining adaptive linear extended state observer (ALESO) and radial basis function neural network (RBFNN). Firstly, ALESO and RBFNN are designed to estimate
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An Obstacle Avoidance Strategy for AUV Based on State-Tracking Collision Detection and Improved Artificial Potential Field J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-23 Yueming Li, Yuhao Ma, Jian Cao, Changyi Yin, Xiangyi Ma
This paper proposes a fusion algorithm based on state-tracking collision detection and the simulated annealing potential field (SCD-SAPF) to address the challenges of obstacle avoidance for autonomous underwater vehicles (AUVs) in dynamic environments. Navigating AUVs in complex underwater environments requires robust autonomous obstacle avoidance capabilities. The SCD-SAPF algorithm aims to accurately
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Controls on Deep and Shallow Gas Hydrate Reservoirs in the Dongsha Area, South China Sea: Evidence from Sediment Properties J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-23 Chenyang Bai, Hongbin Wang, Qing Li, Yu Zhang, Xiaolei Xu
The Dongsha area, a key region in the northern South China Sea (SCS), features both diffusive deep and seepage shallow gas hydrate reservoirs. Utilizing sediment samples from gas hydrate reservoirs and adjacent layers at sites W08 and W16 in the Dongsha area, this study aims to uncover the sediment property differences between deep and shallow gas hydrate reservoirs and their impact on gas hydrate
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A Lightweight Model of Underwater Object Detection Based on YOLOv8n for an Edge Computing Platform J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-23 Yibing Fan, Lanyong Zhang, Peng Li
The visual signal object detection technology of deep learning, as a high-precision perception technology, can be adopted in various image analysis applications, and it has important application prospects in the utilization and protection of marine biological resources. While the marine environment is generally far from cities where the rich computing power in cities cannot be utilized, deploying models
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Risk Coupling Assessment of Vehicle Scheduling for Shipyard in a Complicated Road Environment J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-22 Ningfei Wang, Jingbo Yin, Rafi Ullah Khan
Vehicle scheduling at shipyards can involve delays due to numerous risk factors encountered in the complicated shipyard road environment. This paper studies the problems of risk coupling in shipyard vehicle scheduling based on the risk matrix approach, considering the complicated road environment, assessing the degrees of coupling and disorder. Based on safety-engineering theory and comprehensive analysis
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Numerical Simulation and Analysis of Added Mass for the Underwater Variable Speed Motion of Small Objects J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-22 Xuanquan Wang, Suwei Xiao, Xinchun Wang, Debo Qi
Unlike uniform motion, when an object moves underwater with variable speed, it experiences additional resistance from the water, commonly referred to as added mass force. At present, several methods exist to solve this force, including theoretical, experimental, and simulation approaches. This paper addresses the challenge of determining the added mass force for irregularly shaped small objects undergoing
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Tidal Flat Erosion Processes and Their Dynamic Mechanisms on the South Side of Sheyang River Estuary, Jiangsu Province J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-22 Wangze Zhang, Kai Ouyang, Xiaofei Zhang, Aijun Wang, Qian Yu, Xiang Ye, Caihua Yao
Tidal flats are accumulations of fine-grained sediment formed under the action of tides and play a very important role in coastal protection. The northern part of Jiangsu coast, as a typical example of muddy coasts found all over the world, has experienced serious erosion since the Yellow River shifted northward, and the range of erosion has been gradually extending southward, now reaching the south
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Variable Neighborhood Search for Multi-Port Berth Allocation with Vessel Speed Optimization J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-22 Yalong Song, Bin Ji, Samson S. Yu
This paper delves into the multi-port berth allocation problem (MBAP), enriching the traditional berth allocation problem (BAP) with vessel speed optimization (VSO). In the MBAP, it is assumed that there is cooperation between the port and the shipping companies, and the operation of the vessels and the ports is planned to maximize the overall benefits. Exploring this potential collaboration between
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Towing Analysis and Validation of a Fully Assembled Floating Offshore Wind Turbine Based on an Experimental Study J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-22 Rahul Chitteth Ramachandran, Jorrit-Jan Serraris, Jaume Hernandez Montfort, Erik-Jan De Ridder, Cian Desmond, Jimmy Murphy
The offshore wind sector is moving into deep waters and using floating platforms to harness the higher wind speeds in exposed locations. There are various floating platform types currently in development, but semi-submersibles are considered the most prominent early movers. Such floaters need to be towed to and from wind farm locations for installation, special cases of repair and decommissioning.
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State of the Art on Fe Precipitation in Porous Media: Hydrogeochemical Processes and Evolving Parameters J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-22 Wenran Cao, Guanxi Yan, Harald Hofmann, Alexander Scheuermann
The mixing of terrestrial groundwater and seawater creates dynamic reaction zones in intertidal areas, where land-derived Fe(II) is oxidized to Fe(III) and then precipitates as Fe hydroxides at the groundwater–seawater interface. These hydrogeochemical processes contribute to the formation of iron bands at the saltwater wedge (SW) and beneath the upper saline plume (USP). This study provides a comprehensive
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First Survey of the Sponge Community of a Semi-Submerged Marine Cave along the Adriatic Apulian Coast J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-20 Antonella Schiavo, Muriel Oddenino, Guadalupe Giménez, Caterina Longo
Mediterranean marine caves have been categorized as both biodiversity reservoirs and vulnerable habitats. However, only a few studies have focused on Porifera assemblages within marine caves along the Adriatic Apulian coast (southern Italy). In this study, the sponge fauna of the Rondinella cave, a semi-submerged marine cave along the coast of Bari (Southern Adriatic Sea), was investigated for the
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Development and Application of an FSI Model for Floating VAWT by Coupling CFD and FEA J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-21 Wenping Luo, Weiqin Liu, Shuo Chen, Qilu Zou, Xuemin Song
The emerging floating vertical axis wind turbines (VAWTs) are regarded as a preferred solution to overcome the challenges faced by the traditional horizontal type in open−sea environments. Numerous numerical models have been advanced for assessing this novel object. However, current fully coupled models predominantly rely on simplified theories, assuming a linear fluid load and a one−dimensional slender
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Optimization of Berth-Tug Co-Scheduling in Container Terminals under Dual-Carbon Contexts J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-21 Yan Wang, Tianyu Zou
In order to address the dynamic changes in vessel preferences for berth lines caused by the deployment of shore-based power equipment in major ports and the collaborative scheduling problem of berthing and towing assistance, this paper quantifies the environmental costs of pollutants from the main engines of tugs and auxiliary engines of container ships using an environmental tax. Additionally, considering
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MTP-YOLO: You Only Look Once Based Maritime Tiny Person Detector for Emergency Rescue J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-18 Yonggang Shi, Shaokun Li, Ziyan Liu, Zhiguo Zhou, Xuehua Zhou
Tiny person detection based on computer vision technology is critical for maritime emergency rescue. However, humans appear very small on the vast sea surface, and this poses a huge challenge in identifying them. In this study, a single-stage tiny person detector, namely the “You only look once”-based Maritime Tiny Person detector (MTP-YOLO), is proposed for detecting maritime tiny persons. Specifically
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Submarine Morphological Description of the Ancient Archipelagic Aprons in the Marcus–Wake Seamount Group, Northwestern Pacific Ocean J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-18 Xiao Wang, Huaiming Li, Yongshou Cheng, Pengfei Yao, Fengyou Chu, Weilin Ma, Hongyi Wang, Shihui Lv, Xiaohu Li, Zhenggang Li, Weiyan Zhang, Yanhui Dong
Herein, the morphological characteristics of submarine archipelagic aprons were presented for five guyots, Suda, Arnold, Lamont, Niulang, and Zhinyv, which are over 80 Ma years old and are located in the Marcus–Wake seamount group, northwestern Pacific Ocean. Nearly 28 landslide deposits were recognized using the bathymetry and backscatter intensity data collected from the studied guyots. Landslides
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Analyzing the Mediterranean Sea’s Dynamic Current System and Modeling of Renewable Current Energy Potential J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-18 Mehmet Ugur Gucel, Abdulla Sakalli
In recent years, investments in renewable energy sources have been increasing in order to reduce fossil fuel consumption and mitigate the effects of global warming on the marine ecosystem. Recent studies have shown that marine current energy, which is one of the renewable energy sources, can provide very high energy gains. This study focuses on the Mediterranean region, which is one of the areas where
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Infragravity Wave Oscillation Forecasting in a Shallow Estuary J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-18 Bernabe Gomez, Sarah N. Giddings, Timu Gallien
Infragravity (IG) waves are low-frequency water waves, which can propagate into harbors and estuaries, affecting currents and sediment transport processes. Understanding and predicting IG oscillations inside harbors and estuaries is critical to coastal management and estimating future resilience to climate change impacts. High-resolution water level and flow velocity observations collected within Seal
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Effects of Ocean Acidification and Summer Thermal Stress on the Physiology and Growth of the Atlantic Surfclam (Spisula solidissima) J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-18 Laura Steeves, Molly Honecker, Shannon L. Meseck, Daphne Munroe
This study examines the physiological response of the Atlantic surfclam (Spisula solidissima) to ocean acidification in warm summer temperatures. Working with ambient seawater, this experiment manipulated pH conditions while maintaining natural diel fluctuations and seasonal shifts in temperature. One-year-old surfclams were exposed to one of three pH conditions (ambient (control): 7.8 ± 0.07, medium:
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Diversity and Distribution of Mesozooplankton in the Coastal Southwestern Mediterranean Alboran Sea, during Summer: What Are the Driving Factors? J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-18 Mohamed Reda Benallal, Ahmed Errhif, Laila Somoue, Mohamed Laabir, Hervé Demarcq, Mohammed Idrissi, Aziz Agouzouk, Yassine Goliat, Hajar Idmoussi, Ahmed Makaoui, Omar Ettahiri
The southern Alboran Sea is a dynamic ecosystem and is highly influenced by Atlantic waters. Unfortunately, despite the importance of the mesozooplankton in this ecosystem, the number of studies on this ecosystem is low. The composition and abundance of mesozooplankton communities were studied during the summer season (July 2017) along the Moroccan Mediterranean coast between M’diq and Saïdia. A total
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Roadmap for Recommended Guidelines of Leak Detection of Subsea Pipelines J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-18 Ahmed Reda, Ramy Magdy A. Mahmoud, Mohamed A. Shahin, Chiemela Victor Amaechi, Ibrahim A. Sultan
The leak of hydrocarbon-carrying pipelines represents a serious incident, and if it is in a gas line, the economic exposure would be significant due to the high cost of lost or deferred hydrocarbon production. In addition, the leakage of hydrocarbon could pose risks to human life, have an impact on the environment, and could cause an image loss for the operating company. Pipelines are designed to operate
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A Gaussian-Process-Based Model Predictive Control Approach for Trajectory Tracking and Obstacle Avoidance in Autonomous Underwater Vehicles J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-18 Tao Liu, Jintao Zhao, Junhao Huang
To achieve the efficient and precise control of autonomous underwater vehicles (AUVs) in dynamic ocean environments, this paper proposes an innovative Gaussian-Process-based Model Predictive Control (GP-MPC) method. This method combines the advantages of Gaussian process regression in modeling uncertainties in nonlinear systems, and MPC’s constraint optimization and real-time control abilities. To
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Research on Abrasive Particle Target Detection and Feature Extraction for Marine Lubricating Oil J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-19 Chenzhao Bai, Jiaqi Ding, Hongpeng Zhang, Zhiwei Xu, Hanlin Liu, Wei Li, Guobin Li, Yi Wei, Jizhe Wang
The hydraulic oil of marine equipment contains a large number of abrasive contaminants that reflect the operating condition of the equipment. In order to realize the detection of particulate contaminants, this research first proposes a shape-based classification method for oil abrasive particles, designs an oil abrasive particle collection system, and constructs a new dataset. After that, the research
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Retrofitting Technologies for Eco-Friendly Ship Structures: A Risk Analysis Perspective J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-19 Athanasios Kolios
This paper presents a detailed risk assessment framework tailored for retrofitting ship structures towards eco-friendliness. Addressing a critical gap in current research, it proposes a comprehensive strategy integrating technical, environmental, economic, and regulatory considerations. The framework, grounded in the Failure Mode, Effects, and Criticality Analysis (FMECA) approach, adeptly combines
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The Response of Mixed Layer Depth Due to Hurricane Katrina (2005) J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-19 Wonhyun Lee, Jayaram Veeramony
The ocean’s mixed layer depth (MLD) plays an important role in understanding climate dynamics, especially during extreme weather occurrences like hurricanes. This study investigates the effects of Hurricane Katrina (2005) on the MLD in the Gulf of Mexico, using the Delft3D modeling system. By integrating hydrodynamics and wave dynamics modules, we simulate the ocean’s response to extreme weather, focusing
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Automatic Detection of Floating Ulva prolifera Bloom from Optical Satellite Imagery J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-19 Hailong Zhang, Quan Qin, Deyong Sun, Xiaomin Ye, Shengqiang Wang, Zhixin Zong
Annual outbreaks of floating Ulva prolifera blooms in the Yellow Sea have caused serious local environmental and economic problems. Rapid and effective monitoring of Ulva blooms from satellite observations with wide spatial-temporal coverage can greatly enhance disaster response efforts. Various satellite sensors and remote sensing methods have been employed for Ulva detection, yet automatic and rapid
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Risk Analysis and Visualization of Merchant and Fishing Vessel Collisions in Coastal Waters: A Case Study of Fujian Coastal Area J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-19 Chuanguang Zhu, Jinyu Lei, Zhiyuan Wang, Decai Zheng, Chengqiang Yu, Mingzhong Chen, Wei He
The invasion of ship domains stands out as a significant factor contributing to the risk of collisions during vessel navigation. However, there is a lack of research on the mechanisms underlying the collision risks specifically related to merchant and fishing vessels in coastal waters. This study proposes an assessment method for collision risks between merchant and fishing vessels in coastal waters
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Study on the Adsorption Performance of a Vortex Suction Cup under Varying Diameters of Underwater Structure Tubes J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-17 Qinyun Tang, Ying Du, Zhaojin Liu, Shuo Zhang, Qiang Zhao, Yingxuan Li, Liquan Wang, Tong Cui, Gang Wang
In certain precision work scenarios, underwater robots require the ability to adhere to surfaces in order to perform tasks effectively. An efficient and stable suction device plays a pivotal role in the functionality of such underwater robots. The vortex suction cup, distinguished by its uncomplicated design, high suction efficiency, and capability for non-contact adhesion, holds significant promise
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Enhancement of Maritime Sector Decarbonization through the Integration of Fishing Vessels into IMO Energy Efficiency Measures J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-17 Luis Alfonso Díaz-Secades
The escalating impact of anthropogenic activities on global climate patterns necessitates urgent measures to reduce emissions, with the maritime industry playing a pivotal role. This article aims to examine the adoption of International Maritime Organization energy efficiency measures for the often-overlooked fishing vessels and their contribution to the overall maritime decarbonization efforts. The
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Physical Experimental Study on the Wave Reflection and Run-Up of a New Ecological Hollow Cube J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-17 Haitao Zhao, Feiyue Ding, Junwei Ye, Huabin Jiang, Wei Chen, Weifang Gu, Gengfeng Yu, Qiang Li
Implementing quadrangular hollow blocks on breakwaters is a common method for wave mitigation and ocean disaster prevention. In order to improve the wave-damping performance of conventional quadrangular hollow blocks, a new quadrangular hollow block is proposed. In this study, a series of physical modeling experiments were conducted in a two-dimensional wave flume to investigate the wave reflection
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Numerical and Experimental Study of Static and Dynamic Characteristics of Marine Shear-Compression Isolators J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-17 Ben Zhang, Yinglong Zhao, Jingyue You
Due to their ability to buffer and attenuate vibrations, as well as their low cost, rubber-based isolators are widely used in military and civilian vessels. Since these isolators are part of a ship’s structure, the accurate prediction of their static and dynamic performance is essential for overall structural design. In this paper, two kinds of marine shear-compression rubber isolators of different
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First Results of a Campaign of the Measurement of Polycyclic Aromatic Hydrocarbons in the Sediments of the Hooghly River, West Bengal, India J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-17 Michele Arienzo, Maria Toscanesi, Luciano Ferrara, Carlo Donadio, Priyanka Mondal, Jonathan Muthuswamy Ponniah, Gaetana Napolitano, Santosh Kumar Sarkar, Marco Trifuoggi
This study presents the first data on a 2018–2021 campaign to monitor polycyclic aromatic hydrocarbon levels, PAHs, in the final stretch of the Hooghly River in West Bengal, India. The range of sedimentary PAHs was 0–47,366 ng/g, higher than the ranges given by the literature for comparable study areas. The assay reveals an outstanding level of PAHs contamination in the fine sediments of the Hooghly
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Variations in the Upper Ocean Heat Content of the Southern Canadian Basin J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-17 Yu Liu, Changcheng Ye, Haobin Cen, Xiayan Lin, Guoqing Han
The marine environment of the Arctic Ocean has changed rapidly in recent decades. We used reanalysis data and observational data to explore the variations in the upper ocean heat content (OHC) of the Canadian Basin (CB) and the variations in the temperature profiles of the Southern Canadian Basin (SCB). Both the reanalysis data and observational data show increasing trends for the OHC of the CB from
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Hurricane Ian Damage Assessment Using Aerial Imagery and LiDAR: A Case Study of Estero Island, Florida J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-17 Leanne Hauptman, Diana Mitsova, Tiffany Roberts Briggs
Remote sensing techniques have emerged as an essential tool for conducting damage assessments and are commonly used to improve disaster recovery planning and community resilience policies. The objective of this study was to use aerial imagery data and LiDAR to identify the hardest hit areas, quantify the extent of damages, and compare pre- and post-storm beach morphology conditions in Estero Island
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CFD-Based Study on the Flow and Kinetic Energy Characteristics of a Supercritical Suspended Abrasive Water Jet in the Deep-Sea Environment J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-16 Zhibo Li, Xiangyu Wang, Shaoming Yao, Liquan Wang, Feihong Yun
A supercritical suspended abrasive water jet with dual inputs of pressure and heat is proposed to improve the cutting performance of the conventional suspended abrasive water jet in deep-sea environments. The paper studies the flow and kinetic characteristics of the supercritical suspended abrasive water jet. The CFD simulation method is proposed to investigate these characteristics by integrating
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Power Generation Enhancement through Latching Control for a Sliding Magnet-Based Wave Energy Converter J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-16 Yongseok Lee, HeonYong Kang, MooHyun Kim
A Surface-Riding Wave Energy Converter (SR-WEC) featuring a sliding magnet inside a pitching cylindrical hull is investigated as an easily deployable small power device to support small-scale marine operations. This study extends the earlier development of the system by authors to enhance power performance through the application of end spring and latching control. The inclusion of springs at the tube’s
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Sponge Communities of Submarine Caves and Tunnels on the Fernando de Noronha Archipelago, Northeast Brazil J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-16 Guilherme Muricy, Anaíra Lage, Joana Sandes, Michelle Klautau, Ulisses Pinheiro, Marinella Silva Laport, Bruno Francesco Rodrigues de Oliveira, Carolline Braga Pequeno, Matheus Vieira Lopes
Submarine caves are important biodiversity reservoirs, but there is little information about the biota of marine caves in the Southwestern Atlantic. Here, we describe three submarine cavities and their sponge communities on the Fernando de Noronha Archipelago, Northeast Brazil. The underwater cavities were explored and collections were made through scuba diving from 5 to 18 m depths. Sapata Cave has
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The Spatial Coupling of Fluid Pathways with Gas Hydrates and Shallow Gas Reservoirs: A Case Study in the Qiongdongnan Basin, South China Sea J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-16 Songlin Wu, Shiguo Wu, Jin Sun, Qingping Li, Junjin Chen, Yuan Chen, Xueqing Zhou, Umair Khan
Shallow gas reservoirs play a crucial role in the gas hydrate system. However, the factors influencing their distribution and their relationship with the gas hydrate system remain poorly understood. In this study, we utilize three-dimensional seismic data to show the fluid pathways and shallow gas reservoirs within the gas hydrate system in the Qiongdongnan Basin. From the deep to the shallow sections
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Comparison of Different Methods for Ancient Ship Calm Water Resistance Estimation J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-16 Smiljko Rudan, Šimun Sviličić, Ivan Munić, Antonio Luca Cantilena, Irena Radić Rossi, Alice Lucchini
The remains of ancient ships from various time periods are commonly found on land and under the sea in conditions that make it difficult to reconstruct their original form and structure. For this reason, the reconstruction should be supported by other data, such as data on similar ships, but also by certain assumptions. The results of the reconstruction are significant not only in a historical sense
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Design and Optimization of the Teardrop Buoy Driven by Ocean Thermal Energy J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-16 Danyao Zhao, Shizhen Li, Wenzhuo Shi, Zhengtong Zhou, Fen Guo
With the inception of the Argo program, the global ocean observation network is undergoing continuous advancement, with profiling buoys emerging as pivotal components of this network, thus garnering increased attention in research. In efforts to enhance the efficiency of profiling buoys and curtail energy consumption, a teardrop-shaped buoy design is proposed in this study. Moreover, an optimization
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A Review and Design Principle of Fixed-Bottom Foundation Scour Protection Schemes for Offshore Wind Energy J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-16 Dongyue Gao, Xinying Pan, Bingchen Liang, Bo Yang, Guoxiang Wu, Zhenlu Wang
Foundation scour is the erosion of sediments around pile foundations by wave and current in offshore wind energy. This phenomenon destabilizes foundations and poses a threat to pile safety. Therefore, scour protection becomes a crucial challenge in offshore wind projects. This paper reviews and synthesizes recent publications and patented technologies related to scour protection. Considering the primary
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Spatial and Temporal Characteristics and Mechanisms of Marine Heatwaves in the Changjiang River Estuary and Its Surrounding Coastal Regions J. Mar. Sci. Eng. (IF 2.9) Pub Date : 2024-04-15 Minghong Xie, Qiyan Ji, Qingdan Zheng, Ziyin Meng, Yuting Wang, Meiling Gao
Marine heatwave (MHW) events have significant consequences for marine ecosystems and human society. This paper investigates a MHW’s spatial–temporal characteristics in the Changjiang River Estuary and its surrounding coastal regions (CRESs), as well as analyzes the drivers, using satellite and reanalysis data spanning from 1982–2021. The findings show that, during the last 40 years, all four of the