• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2004.08a
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• pp.177-185
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• 2004

This paper describes Listening Decision Aid Simulator (LDAS) to provide a decision-supporting tool that can reproduce real-like listening situations focused on the duty officer's two ears. The sound propagation mechanism from a whistle to listener's two ears is established at first, and the spatial transfer coefficients of a bridge door are measured at training vessel. Then, the construction works with the spatial transfer coefficients and its evaluation experiments with five collision accidents are carried out. As results from tests, the five cases can be judge by LDAS; it led to the insight of practical use of LDAS as one of the decision supporting system in collision accidents.

• Journal of the Korean Institute of Navigation
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• v.6 no.1
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• pp.41-59
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• 1982

In the Sailing Rules of International Regulation for Preventing Collisions at Sea, 1972, any definite distance between two vessels approaching each other is not referred for adequate maneuvering to avoid collision. At sea the officer in charge of bridge duty is required to guess safe distance before he takes maneuvering actions needed to avoid collision. Papers on safe distances calculated on the base of the motiional characteristics of ships for collision avoiding actions are very few. In this paper, the minimum safe approaching distances necessary for actions to be taken to avoid collision are calculated in numerical numbers definitely by mathematic formula based on the maneuvering indices got from experiments of actual ships. On the assumption that two vessels same in size and conditions are approaching each other, the author calculated the minimum safe approaching distance as 4.5 times, sufficient safe approaching one as 9.0 times the length of the ship involved in head-on situation and 5.0 times, 10 times respectively the length of the ship in each case mentioned above in crossing situation.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2000.10b
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• pp.187-193
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• 2000

An expert system for a ship medical manager is presented in this paper where it si planned to improve the medical environment of the crew. The proposed system includes a information retrieval system that is based on the knowledge database organizing important experiences of first-aiders and is intended to be used effectively by the inexpert member. Moreover, this system of which the purpose is to computerize the medical work of each ship medical manager that the third officer give an affirmative guide for the execution of their duty from the medical treatment database of the disease occurring frequently on many crews.

• Journal of the Korean Institute of Navigation
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• v.16 no.3
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• pp.1-17
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• 1992

Although there are numerous regulations provided for the Steering and Sailing Rules on the International Regulation forPreventing Collisions at Sea, 1972(hereinafter called COLREG), the most important Sailing Rules for approaching between two vessels in sight of one another could actually be defined as three typical aspects based on both the COLREG and practical sea experience. The Rules are overtaking , head-on situation and crossing situation applicable, those clearly prescribes on the COLREG. Thus, for easy understanding of these Rules comprehensive legal research is performed by every chapter in this paper so as to make practical implementation by duty officer of apprentice of shipping concerned. Consequently an aim of the study intends not only to exonerate any vessel, or the owner, master or crew there of, from consequences of well understanding and timely implementation to complying with the aforementioned three typical Steering and Sailing Rules which may be required by ordinary practice of seamen but also to avoid risk of collision at sea.

• Proceedings of the KIEE Conference
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• 2003.07b
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• pp.1323-1325
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• 2003

In field of Urban transit safely, It must be not only secured vehicle but also every areas like power, signal, communication, track, tunnel, operating facilities. Likewise it is very important not only hardware system like vehicles, facilities but also software system like action of engine driver, duty officer. In other to secure safety of hardware, soft ware, it is very important systemic process. In Korea, Many operating companies neglect to invest in safely and ignore technical development about safety because of management. Safely was considered in subway system and many studies were accomplished about safety in subway system in advanced county like U.K, USA. Hence, in this paper, Conditions and improvement of minimum considerable hardware and software are proposed for safe operation in Urban transit.

• Journal of the Korean Institute of Navigation
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• v.14 no.3
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• pp.63-73
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• 1990

Students of the Mogpo Merchant Marine College must complete one year's shipboard training course according to IMO(International Maritime Organization) regulations as an obtaining matter of Certificate of Competency. The purpose of this shipboard training course lies int he student's acquiring practical knowledge and sill as a part of a course of study and, in the future, fostering essential adaptability and leadership, especially in bad circumstances on the sea. The shipboard training course has two kind that the students can be trained either on the training ship or on a merchant ship of the shipping company. In this paper, I only thought over the legal status of apprentice officers on the merchant ship and analyzed the problems practicably during shipboard training. This paper is made up of five chapters. The first chapter contains the purpose contents and method of this study, in the second, the meaning of shipboard practice education and training, in the third, the legal status of apprentice officers on merchant ship, in the fourth, the analysis of the provisions of the seamen act applied to apprentice officers on a merchant ship. And in the last chapter 5, the contents mentioned is summarized and directions are presented to amend the provisions of the seamen act applied to apprentice officers. The conclusions are as follows. 1.In case of shipboard training on overseas employment ship, the seamen act applied to the manning agent employing the apprentice officers should be reinforced. 2. The provisions of disembarkation in mid course by discipline of the seamen acts Article 24 should be relaxed. And the provisions in relations to seamen's duty to be a reason of discipline applied to apprentice officer among the provisions for ship's public order maintenance should be abolished. 3. The provision of repartriation completely should be applied to apprentice officers and the provisions of a journey expenditure during their embarkation or disembarkation have to be established. 4. The apprentice officers in shipboard training also need securing a basic wages provision to be criterion of an accident compensation. 5. The apprentice officers in shipboard training should not be in charge of third officer's or third engineer' study.

• Journal of the Korean Society of Marine Environment & Safety
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• v.26 no.7
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• pp.787-797
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• 2020

The marine officer plays a pivotal role in the shipping organization as a professional who performs a complex and diverse function. On the sea, unlike land duty, the possibility of turnover increases due to characteristics such as living in isolated spaces, continuous shift work during a set sailing period, high intensity work tension, stress, and social isolation. In this study, the impact of the organization's civic actions on the intention of turnover as a mediator of organizational immersion was divided into three groups of large companies, small and medium-sized enterprises, and public enterprises to check the differences between each category in a structural manner. Analysis showed that there were statistically significant differences between the groups in loyalty and turnover intention when the sub-factors of organizational commitment and organizational citizen behavior of the marine officer, and the size of turnover intention were included. Organization citizen behavior did not directly affect turnover intention, but when indirect effects were included, there was an effect through loyalty, and relationship-oriented organizational citizen behavior negatively affected turnover intention through loyalty. Excluding public enterprises, the non-standardization path coefficients were -0.229±0.117 and -0.319±0.068, respectively, showing a statistically significant effect in large companies and SMEs. These results indicate that in order to lower the employee turnover intention in large corporations and small and medium-sized shipping companies, it is necessary to consider not only organizational citizen behavior but also measures to increase organizational commitment.

• Journal of Fisheries and Marine Sciences Education
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• v.27 no.2
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• pp.441-451
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• 2015

The one-year onboard training, which has been implemented since 1988 according to the STCW Convention in 1978, is a crucial part of cadets' training and education. The choice of training shipping company is important that like a internship. This basic study is for the satisfaction at the shipping companies that trains cadets the Mokpo National Maritime University. The satisfaction for onboard training consists of a conscious, educational and environmental parts with six demographic characteristics and carried out the questionnaire survey of 206 cadets in shipping companies. The low parts of satisfaction are implemented cross tabulation analysis and in-depth interview for realize the reason. In this paper, the satisfaction from environmental part($3.83{\pm}0.75$) is high but conscious part($3.35{\pm}0.86$) and educational part($3.33{\pm}0.79$) are low. In demographic characteristics, male in gender, apprentice officer in duty, others in kind of crew, container in kind of vessel and 30,000~100,000 tons in size of vessel are high satisfaction in general. Specifically, feeding service($4.02{\pm}0.75$) in environment, influence on future vision($3.65{\pm}0.84$) in consciousness, goal for training($3.50{\pm}0.65$) in education showed the highest level in satisfaction.

• Journal of Convergence Society for SMB
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• v.6 no.4
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• pp.45-50
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• 2016

This research suggests a method to contribute to the perfect execution of duty in prospective information warfare by inspecting network-based warfare, in which its basic concepts and efficient management plans are provided; it is especially important, due to growing focus on information warfare caused by sudden improvements on information technology which affects not only civil matters but international military affairs as well. For this purpose, this research scrutinizes on the chronological organization of warfare traits during the information age, and information-warfare execution, as well as its effects, thereby providing proper management plans for network-based warfare.

• Journal of the Korean Society of Marine Environment & Safety
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• v.15 no.3
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• pp.217-222
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• 2009

Safe navigation is closely related to the fatigue of marine officers. Also, the fatigue of duty officer can cause serious marine accidents. In this study, the documentary survey about the marine officers' working environments, fatigue factors and symptoms was conducted. And the questionnaire survey which is related to the fatigue analysis factors such as sleepiness, mental physical workload and alcohol for apprentice officers was carried out, and the results of questionnaire survey were analyzed. Lastly, on the basis of this study, the fatigue analysis model was suggested in order to assess the marine officers' performance in the future.