Journal of Ocean Engineering and Technology

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Original Research Article

January 21, 2025

Performance Evaluation of PEMFC Single Cells under Constant Voltage and Constant Current Conditions

Seon Hyeong Lee, Jae Hong Kim, Jae Heon Kwon, Ryu Bin Kwon, Kwang Hyo Jung, et al.

J. Ocean Eng. Technol.. 2025;39(1):1-8.

Operating conditions significantly affect the durability of polymer electrolyte membrane fuel cells (PEMFC) in marine applications. This study presents experimental results for the performance evaluation of PEMFC single cells under constant voltage and constant current conditions, simulating marine vessel operations. The cells were operated at constant voltages of 0.75 and...

Original Research Article

January 21, 2025

Analytic Study on the Thrust of Two-Dimensional Foil with Aileron in Wave Field

Kyeonguk Heo, Yoon-Rak Choi

J. Ocean Eng. Technol.. 2025;39(1):9-22.

Numerous devices to reduce ship resistance have been suggested. One of them, a propagating hydrofoil in a wave field, can produce thrust and might be used to reduce the resistance of ships. This paper proposes the analytical solution of thrust for a two-dimensional oscillating foil with an aileron in propagating...

Original Research Article

February 6, 2025

Reliability Analysis and Neural-network Modeling of Ship Radar Mast Structure by Adopting Quasi-random Sampling

Chang-Yong Song

J. Ocean Eng. Technol.. 2025;39(1):23-31.

Outfitting structures, such as ship radar masts, require a design that considers the vibration and structural strength performance to ensure safe navigation. Nevertheless, reliability analysis considering design uncertainties is required because of the lack of classification rules for such structure design. This study examined the quasi-random sampling process suitable for...

Original Research Article

January 20, 2025

Wave Transmission Analysis of Timoshenko Beam Junction with Mindlin Plates Connected in the Same Plane

Young-Ho Park

J. Ocean Eng. Technol.. 2025;39(1):32-39.

Energy flow analysis (EFA) models that account for significant shear deformation and the rotatory inertia effects in out-of-plane motion are essential for performing reliable EFA of practical composite structures, such as large ships or offshore platforms. The power coefficients for transmitted and reflected waves caused by incident waves at arbitrary...

Original Research Article

February 24, 2025

Comparison of Residual Stress According to Measurement Methods for Shot-Peened Stainless Steels

Seok-Hwan Ahn

J. Ocean Eng. Technol.. 2025;39(1):40-46.

Residual stress in materials influences the structural and dimensional stability of mechanical components and can lead to damage. In this study, shot peening was performed on stainless steel, a material widely used in ship components and piping, to evaluate the changes in residual stress induced by this process. Residual stress...

Current Issue: Volume 39(1); Feb 2025


Performance Evaluation of PEMFC Single Cells under Constant Voltage and Constant Current Conditions: Seon Hyeong Lee, Jae Hong Kim, Jae Heon Kwon, Ryu Bin Kwon, Kwang Hyo Jung, Moonho Son, Hyun Park; J. Ocean Eng. Technol. 2025;39(1):1-8. Published online January 21, 2025; DOI: https://doi.org/10.26748/KSOE.2024.072; Full text PubReader ePub PDF PDF(Korean)


Analytic Study on the Thrust of Two-Dimensional Foil with Aileron in Wave Field: Kyeonguk Heo, Yoon-Rak Choi; J. Ocean Eng. Technol. 2025;39(1):9-22. Published online January 21, 2025; DOI: https://doi.org/10.26748/KSOE.2024.077; Full text PubReader ePub PDF


Reliability Analysis and Neural-network Modeling of Ship Radar Mast Structure by Adopting Quasi-random Sampling: Chang-Yong Song; J. Ocean Eng. Technol. 2025;39(1):23-31. Published online February 6, 2025; DOI: https://doi.org/10.26748/KSOE.2024.097; Full text PubReader ePub PDF


Wave Transmission Analysis of Timoshenko Beam Junction with Mindlin Plates Connected in the Same Plane: Young-Ho Park; J. Ocean Eng. Technol. 2025;39(1):32-39. Published online January 20, 2025; DOI: https://doi.org/10.26748/KSOE.2024.076; Full text PubReader ePub PDF


Comparison of Residual Stress According to Measurement Methods for Shot-Peened Stainless Steels: Seok-Hwan Ahn; J. Ocean Eng. Technol. 2025;39(1):40-46. Published online February 24, 2025; DOI: https://doi.org/10.26748/KSOE.2024.103; Full text PubReader ePub PDF


Impacts of Interactions Between Nearby Tidal Farms on Their Performance and Operation: Patxi Garcia-Novo, Simon Waldman, Yusaku Kyozuka, Daisaku Sakaguchi; J. Ocean Eng. Technol. 2025;39(1):47-55. Published online February 10, 2025; DOI: https://doi.org/10.26748/KSOE.2024.095; Full text PubReader ePub PDF


Efficiency Analysis of Container Ports in Vietnam Using Stochastic Frontier Analysis: Thanh Uyen Bui, Gyu Sung Cho; J. Ocean Eng. Technol. 2025;39(1):56-62. Published online January 20, 2025; DOI: https://doi.org/10.26748/KSOE.2024.100; Full text PubReader ePub PDF


Electrical Generator Design for Darrieus-Type Wave Energy Converter: Patrick Bach, Tsumoru Shintake, Hideki Takebe, Jun Fujita, Toshio Shindou, Kazuaki Uchibori, Masayuki Shimizu, Hiroyasu Ochiai, Yoshiharu Yoshimura, Isaku Kanno; J. Ocean Eng. Technol. 2025;39(1):63-72. Published online February 11, 2025; DOI: https://doi.org/10.26748/KSOE.2024.091
Cited By 1; Full text PubReader ePub PDF


Numerical Simulation of Unsteady Flow Past a Rotating Wells Turbine with Modified Blades: Eru Kurihara, Hiroki Yasui, Yuito Isayama, Hiromitsu Hamakawa; J. Ocean Eng. Technol. 2025;39(1):73-81. Published online February 26, 2025; DOI: https://doi.org/10.26748/KSOE.2024.092
Cited By 1; Full text PubReader ePub PDF


Effects of Irregular Bathymetry on the Performance and Wake Characteristics of Tidal Stream Turbines: A Case Study of a Tidal Power Site: Ngome Mwero, Song Fu, Takafumi Inamitsu, Stephanie Ordonez-Sanchez, Benson Mwangi, Patxi Garcia-Novo, Cameron Johnstone, Daisaku Sakaguchi; J. Ocean Eng. Technol. 2025;39(1):82-91. Published online February 28, 2025; DOI: https://doi.org/10.26748/KSOE.2024.096; Full text PubReader ePub PDF


Real-Time Acoustic Signal Classification Using RNN for Underwater Cutting Process Monitoring and Situational Awareness: Seunghyun Pyo, Tae-Kyeong Yeu, Yeongjun Lee, Jong-Boo Han, Yujin Cho, Daegil Park; J. Ocean Eng. Technol. 2025;39(1):92-102. Published online January 20, 2025; DOI: https://doi.org/10.26748/KSOE.2024.069; Full text PubReader ePub PDF PDF(Korean)


A Study on Multi-ship Avoidance System for Unmanned Surface Vehicles Using the Quaternion Ship Domain and Collision Risk Index: Dong-Hun Lee, Mu-Yeong Seo, Hyo-Geun Lee, Won-Jun Yoo, Sanghyun Kim, Kwang-Jun Paik; J. Ocean Eng. Technol. 2025;39(1):103-121. Published online February 28, 2025; DOI: https://doi.org/10.26748/KSOE.2025.007; Full text PubReader ePub PDF


Techno-Economic Feasibility Study of Hydrogen Transportation in Greenland Using Pipeline and Maritime Routes: Hauwa Bappah Dukku, Javier Arnaut, Cameron Johnstone, Annalisa Riccardi, Stephanie Ordonez Sanchez; J. Ocean Eng. Technol. 2025;39(1):122-132. Published online January 24, 2025; DOI: https://doi.org/10.26748/KSOE.2024.088; Full text PubReader ePub PDF

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