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Volume 46(6); December 2022
Byung Chul Choi, Jae Ik Lee
The effect of periodic bunkering operations on methane number (MN) and Wobbe index (WI) variations in the fuel gas supply system of liquefied natural gas (LNG)-...
Measurement of flame temperature using silicon carbide and thermal imaging camera
Jun-Soo Kim, Daegeun Park, Jae-Hyuk Choi, Sung Hwan Yoon
Recently, the diversification of fuels in the field of ship energy has been recognized as an essential market change in emission reduction regulations. In parti...
Study on the vibration behavior of a G/T 3-ton class composite fishing boat hybrid propulsion system
Quang Dao Vuong, Youngmin Kim, Ji-woong Lee
In recent years, eco-friendly ships have been widely used to optimize energy efficiency and prevent air pollution. Composite materials can reduce the weight of ...
Effect of synthesis temperature on oxygen evolution reaction of cobalt-iron layered double hydroxide
Sung Jun Lee, Yoo Sei Park
Water electrolysis is a promising technology for producing renewable hydrogen energy. However, achieving high-efficiency water electrolysis has been impeded by ...
Jeonghyeon Yang, Hui-Hun Kim, Beom-Soo Kim, Yeonwon Kim
The favorable role of calcareous coatings that improve the effectiveness of cathodic protection in submerged marine structures is generally recognized. However,...
In-Kyu Lee, Sang-Kon Lee, Kyung-Hun Lee
Powder extrusion experiments were performed to demonstrate the microstructure transition and extrusion behavior of miniature helical gears from different consol...
Jaehui Bang, Hansol Kwon, Eungsun Byon, Eunkyung Lee
In this study, the mechanical properties of Ni coating implemented with twin wire arc spray (TWAS) were analyzed by adding Al and Mo to improve the surface prop...
Sung-Uk KIM, Intae KIM, Gun-Kyung LEE, In-Seob KIM
With the recent establishment of the Criteria for Standard Fishing Vessels Form with Reinforced Stability and Welfare noticed by the Ministry of Oceans and Fish...
Effect of the turbulence model in the flow analysis of triple offset butterfly valve
Moo-Sun Kim, Seong-Woo Lee, Sung-Woong Choi
A valve is a device that regulates the flow of fluid by manipulating various passageways to control the pressure and flow stream. For the robust design of valve...
[ICACE2022] Automatic hand tracking system control with 4-axis light stand for surgical light
Sichan Oh, Hoyoung Kim, Inwoo Kim, Dohyung Kim, Hyeonjong Kim, Junghyuk Ko
Currently, the medical field is aided by several robots. However, most surgical light stands are cumbersome to manually adjust the position of light. The accura...
Jong-Eon Park
The transmission resonance characteristics of a single-ridged circular aperture (RCA) were analyzed using the finite-difference time-domain method, and it was f...
Effective signal detection in a LoRa-networked ship for data-driven ship management
Yang-Ick Joo
Recently, as the data-based management of ships using in-ship data has been required, the demand for networking technology to acquire and stably transmit the da...
Young Jin Hwang, Jong-Eon Park
General-purpose electromagnets are widely used to measure and analyze the magnetic properties of various materials. The performance of these electromagnets depe...
Development of energy management system using neural network for power electric system
SeongWan Kim, SeokCheon Kang, MinKi Son, HyeonMin Jeon
With the international community's efforts to reduce carbon dioxide, the technology to improve the energy efficiency of ships has been significantly advanced ow...
[ICACE2022] Prediction of container vessel waiting time in Busan port using LSTM neural network
Hyeonsoo Shin, Chiyeol Kim, Hwanseong Kim
This study proposes a long short-term memory neural network model to predict the waiting time of container vessels at Busan Port. Based on Port Management Infor...
Study on an RTGC hybrid system for energy saving of harbor cranes
Hyeun-Chul Kim, Hyeon-min Jeon, Jong-su Kim
This paper presents a hybrid power system for rubber-tired gantry cranes (RTGCs) that dramatically reduces their fuel consumption. The hybrid crane uses batteri...
Analysis of battery lifetime based on the inverter driving pulse
Hee-Su Kim, Sung-geun Lee
With the rapid increase in environmental pollution over time, the climate change has progressed rapidly, and emissions of CO, CH, NCHO, HFCs, PFCs, and SF are r...
Identifying threatening drone based on deep learning with SWIR camera
Kyung-Soo Park, Jung-Kn Kim, Jae-Hoon Kim, Seong-Dae Lee
Small drones of various sizes are used in numerous fields, including commerce, reconnaissance, and offensive attacks. Major facilities such as security areas of...
Activity-oriented visual relationship detection technique for context recognition
Yeong-Jae Shin, Seong-Beom Jeong, Ju-Hyeon Seong, Dong-Hoan Seo
Context recognition is a technology that acquires information about events based on information on various objects appearing in images. To implement this, dense...
A study on handwritten parcel delivery invoice understanding model
Yeong-Jae Shin, Seong-Beom Jeong, Hong-Il Seo, Won-Yeol Kim, Dong-Hoan Seo
Optical character recognition (OCR) technology is a field of continuous research in which text images are stored or utilized as data. However, OCR technology al...