Article
Meteorology & Atmospheric Sciences
Charitha Pattiaratchi, Mirjam van der Mheen, Cathleen Schlundt, Bhavani E. Narayanaswamy, Appalanaidu Sura, Sara Hajbane, Rachel White, Nimit Kumar, Michelle Fernandes, Sarath Wijeratne
Summary: Plastic debris is the most common and rapidly increasing human pollutant in the world's oceans. While the distribution and impact of plastic in the Pacific and Atlantic oceans have been extensively studied, there is limited understanding of the Indian Ocean. This review discusses the sources and sinks of plastic specific to the Indian Ocean, as well as the unique atmospheric, oceanographic, and topographic factors that influence plastic distribution. It also identifies hotspots of plastic accumulation in the Indian Ocean, highlighting the differences between the northern and southern hemispheres. However, there are significant knowledge gaps regarding plastic in the Indian Ocean, and further research is needed to address these gaps.
Article
Engineering, Marine
Jiqiang Li, Guoqing Zhang, Bo Li
Summary: A logic virtual ship-logic virtual aircraft (LVS-LVA) guidance principle is developed to generate reference heading signals for the cooperative path-following control of an underactuated surface vessel (USV) and an unmanned aerial vehicle (UAV). A robust adaptive neural cooperative control algorithm is designed using dynamic surface control, radial basic function neural networks, and event-triggered technique. The proposed algorithm achieves concise form, low transmission burden, and robustness for the control of the USV-UAV system.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Marine
Xinwang Liu, Weiwen Zhao, Decheng Wan
Summary: This paper introduces the application of the multi-fidelity Co-Kriging surrogate model in hull form optimization design, which combines the advantages of high-fidelity and low-fidelity sample evaluation to improve accuracy and efficiency. Numerical examples are used to validate the advantages of the multi-fidelity Co-Kriging surrogate model in terms of fidelity and efficiency.
Article
Engineering, Marine
Somaiyeh MahmoudZadeh, Amin Abbasi, Amirmehdi Yazdani, Hai Wang, Yuanchang Liu
Summary: This paper presents an uninterrupted collision-free path planning system for multiple USVs in ocean sampling missions. The proposed system integrates a B-Spline data frame and a PSO-based solver engine to provide smart sampling and optimal, smooth path curves.
Article
Engineering, Civil
Karen Panetta, Landry Kezebou, Victor Oludare, Sos Agaian
Summary: The study introduces a comprehensive underwater object tracking benchmark dataset, highlighting the shortcomings of existing tracking algorithms on underwater data and demonstrating improved tracking performance through a generative adversarial network enhancement model.
IEEE JOURNAL OF OCEANIC ENGINEERING
(2022)
Article
Engineering, Marine
Lichen Li, Xin Liu, Hao Liu, Wenbing Wu, Barry M. Lehane, Guosheng Jiang, Meijuan Xu
Summary: The concept of hybrid pile foundation has been proposed and studied to overcome the limitations of conventional monopiles in supporting offshore wind turbines. This paper conducts static lateral load tests on model piles and hybrid pile foundations in saturated sand, and analyzes the influence of pile stiffness and hybrid foundation type on lateral response. Experimental results show that the lateral capacity of the hybrid pile foundation is significantly improved compared to the monopile foundation. The numerical analysis reveals the load transfer mechanism and the efficiency of soil resistance mobilization of different pile foundations.
Article
Engineering, Marine
Emad Sobhani, Amir R. Masoodi, Amir Reza Ahmadi-Pari
Summary: This study enhances the opening angle of Linked Hemispherical-Conical Shell (LHCS) structures using graphene-based nanocomposite materials and calculates the Natural Frequency Values (NFVs) associated with the structure. The Halpin-Tsai approach and the rule of mixture are used to determine the mechanical criteria of the graphene-based nanocomposite materials, while Donnell's assumptions and First-Order Shear Deformation Theory (FOSDT) are employed to obtain the main formulations of the LHCS. Hamilton's technique is used to find the kinetic equations of the LHCS, and the Generalized Differential Quadrature (GDQ) program is applied to discretize the equations. The obtained NFVs are compared with benchmark studies to validate the accuracy of the proposed scheme. Additionally, the effects of various geometric criteria and scattering models on the NFVs are investigated.
Article
Engineering, Ocean
Weijia Ma, You Qin, Kai Zhao, Guoxing Chen
Summary: The study highlights significant differences in liquefaction characteristics between saturated coral sand and quartz sand under different cyclic stress paths. A unique relationship between deviatoric strain amplitude and excess pore water pressure ratio can be established regardless of cyclic stress paths. Furthermore, the dissipative energy required to liquefaction triggering of coral sand is much larger than that of quartz sand.
MARINE GEORESOURCES & GEOTECHNOLOGY
(2022)
Review
Engineering, Marine
Amin Basiri, Valerio Mariani, Giuseppe Silano, Muhammad Aatif, Luigi Iannelli, Luigi Glielmo
Summary: This paper provides a comprehensive literature review on path-planning problems for multi-rotor UAVs, with a focus on the related research in Precision Agriculture. It serves as a unified and accessible guide for researchers who are initiating their endeavors in this subject.
JOURNAL OF NAVIGATION
(2022)
Review
Geochemistry & Geophysics
Peter Berg, Markus Huettel, Ronnie N. Glud, Clare E. Reimers, Karl M. Attard
Summary: Aquatic eddy covariance (AEC) is a noninvasive technique with high temporal resolution and large area coverage, which provides new insights and more accurate assessments of the functioning and metabolism of aquatic ecosystems. The studies using AEC have revealed that benthic oxygen exchange is more dynamic than previously recognized, and accurate mean values can only be obtained by integrating measurements over all timescales. The technique has also seen new developments in measuring air-water gas exchange and long-term deployments.
ANNUAL REVIEW OF MARINE SCIENCE
(2022)
Review
Engineering, Marine
Chenguang Liu, Xiumin Chu, Wenxiang Wu, Songlong Li, Zhibo He, Mao Zheng, Haiming Zhou, Zhixiong Li
Summary: This article discusses the development and trends of Maritime Autonomous Surface Ships (MASS) and focuses on the issues and research progress of human-machine cooperative navigation. Key theories, technologies, and feasible approaches are provided. Human-machine cooperative navigation is seen as an important breakthrough for MASS development, and inland and offshore waters are considered suitable areas for testing its performance.
Article
Engineering, Marine
Zi-Fei Meng, A-Man Zhang, Ping-Ping Wang, Fu-Ren Ming, Boo Cheong Khoo
Summary: This paper proposes a targeted essentially non-oscillatory (TENO) SPH scheme, which can be applied to reproduce compressible flows with shocks and small-scale structures, incompressible vortex flows, and free surface flows. The TENO reconstruction is implemented by modifying polynomial interpolations in SPH.
Article
Engineering, Marine
B. Afra, S. Karimnejad, A. Amiri Delouei, A. Tarokh
Summary: In this study, the combination of Lattice Spring Method (LSM) and Immersed Boundary-Lattice Boltzmann Method (IB-LBM) is employed to investigate fluid-elastic body interaction problems under unsteady conditions. The method eliminates the need for arbitrary spring parameters to determine the deformation of the flexible body. Numerical simulations are conducted to examine the effects of various variables on the lift and drag coefficients of tandem cylinders. The results show that the fluctuations of the lift coefficient are reduced when the filament's capillary number is at its maximum value and the filament's clamped edge is located in the middle of the cylinders. Additionally, increasing the filament's length results in a significant reduction in the drag coefficient on the downstream cylinder.
Article
Engineering, Marine
Yu Guo, Yuxu Lu, Ryan Wen Liu
Summary: Maritime video surveillance plays a crucial role in guaranteeing the safety and security of vessel traffic in maritime applications. However, low visibility conditions can result in decreased accuracy of vessel detection. To address this issue, this paper proposes a low-visibility enhancement network (LVENet) based on Retinex theory to improve the imaging quality in maritime video surveillance. Experimental results demonstrate that LVENet outperforms other methods in terms of visual quality.
JOURNAL OF NAVIGATION
(2022)
Article
Engineering, Marine
Chao Mi, Shifeng Huang, Yujie Zhang, Zhiwei Zhang, Octavian Postolache
Summary: This paper presents a visual non-contact measurement method for real-time positioning of the three-dimensional attitude of containers in automatic container terminal operations. The method achieves accurate measurement using a combination of deep learning networks and traditional image processing algorithms, meeting the requirements of automated loading and unloading.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Review
Geochemistry & Geophysics
Christopher R. Sherwood, Ap van Dongeren, James Doyle, Christie A. Hegermiller, Tian-Jian Hsu, Tarandeep S. Kalra, Maitane Olabarrieta, Allison M. Penko, Yashar Rafati, Dano Roelvink, Marlies van der Lugt, Jay Veeramony, John C. Warner
Summary: This review focuses on recent advancements in process-based numerical models of extreme storms' impact on sandy coasts. These models, driven by larger-scale meteorology and hydrodynamics models, simulate various processes across the Sallenger storm-impact scale.
ANNUAL REVIEW OF MARINE SCIENCE
(2022)
Article
Engineering, Marine
Ghasem Rashidian, Khalid Shahin, Gehad E. Elshopakey, Heba H. Mahboub, Azin Fahim, Hiam Elabd, Marko D. Prokic, Caterina Faggio
Summary: This study found that feeding carp with nutmeg extract can significantly enhance their growth parameters, immune system, and resistance against fish pathogenic bacteria.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Limnology
Patricia M. Glibert, Aditee Mitra
Summary: The emerging research on mixoplankton is reshaping our understanding of material and energy flow in the ocean, and has wide-ranging impacts on marine ecosystems and sustainability. As our knowledge of marine microbes and their interactions increases, traditional linear models of microbial interactions are being replaced by more complex and interconnected models.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Engineering, Marine
Chang Xie, Li Zhou, Shifeng Ding, Renwei Liu, Sijie Zheng
Summary: In this study, the CFD-DEM coupling method is used to investigate the self-propulsion performance of an ice-strengthened bulk carrier in a brash ice channel. The hydrodynamic performance of the propeller is simulated using CFD, while the ice load is calculated using DEM. The simulation results show good agreement with both ship-ice and propeller-ice interaction processes. The self-propulsion simulations under different conditions are analyzed, and the calculated parameters are compared with model test data. The results indicate that the simulated power is within 8.5% of the measurements. This study provides a valuable tool for hull development and navigation guidance of polar ships in brash ice channels.
Article
Engineering, Marine
Ali Ebrahimi-Mamaghani, Navid Mostoufi, Rahmat Sotudeh-Gharebagh, Reza Zarghami
Summary: In this study, the linear and nonlinear vibrations of supported pipes with two-phase flow were modeled using the drift-flux model. The effects of flow parameters, geometry, and physical properties on the system dynamics were examined through validation and parametric analysis. The results showed that the pipe diameters, liquid phase density, and void fraction/mixture velocity have significant influence on the vibrational frequencies of the system.
