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박태건 ( Tae-geon Park ),김석재 ( Seok-jae Kim ),추영수 ( Yeong-su Chu ),박태선 ( Tae-sun Kim ),류경진 ( Kyung-jin Ryu ),이유원 ( Yoo-won Lee ) 한국어업기술학회 2018 수산해양기술연구 Vol.54 No.2
Marine casualties of small fishing vessels (SFV) of less than 20 tons are frequent in Korea. The analysis was conducted to identify the cause and then prepared reduction plan using the marine casualty statistics of fishing vessels for the last five years from 2012 to 2016 by the Korean Maritime Safety Tribunal to reduce the marine casualties of SFV. According to the analysis of the type of whole vessels occurring marine casualty, fishing vessels accounted for an average 68.0 %; moreover, except for 2014 when M/V SEWOL ferry capsizing occurred, the rate of death and missing due to marine casualties occurred from 68.3 % to 91.2 % in fishing vessels, and an average 79.5 % was found to be urgent need of a measure. Marine casualties occurrence depending on the gross tonnage of fishing vessel was found that the most occurred at less than 5 tons, followed by the order of 5 to 10 tons or less. However, crews who boarded on SFV do not have any training program for them, except for the fishing safety training of fisher who carry out fishing for shipowners and crew of the coastal and offshore fishing vessel in accordance with the safety regulations for fishing vessels in the Fisheries Cooperative Association. Therefore, it is necessary to revise the training program so as to improve the preventive action and then emergency response including the fishing safety compliance with each fishery, safe navigation, machinery inspection and emergency response. Also, an SFV of less than 5 tons of 56,000 vessels is boarded by unqualified fishers. It would also be possible to consider subdividing small boat operator’s certificate to enhance their qualifications. It is expected that marine casualties of SFV will be reduced if active efforts are made to improve the safety consciousness of fisher and shipowners as well as the reorganization of fishing safety training and the small boat operator’s certificate system.
박태건(Tae-Geon Park),류지수(Ji-Su Ryu),이기상(Kee-Sang Lee) 전력전자학회 2002 전력전자학술대회 논문집 Vol.- No.-
In many high performance engineering systems such as automated production system and transportation systems, AC-servo drives are employed as the most Important driving parts And the faults of servo drives result In overall system performance deterioration or an unscheduled shutdown In cntical situations The real-time fault detection and isolation(FDO scheme is very useful to prevent them and to guarantee the desired reliability of the overall system. In this paper, the FDI schemes which can be applied to AC servo drives are Introduced and some new results are presented
박태건(Tae-Geon PARK),김석재(Seok-Jae KIM),추영수(Yeong-Su CHU),박태선(Tae-Sun PARK),류경진(Kyong-Jin RYU),김형석(Hyung-seok KIM),이유원(Yoo-Won LEE) 한국수산해양교육학회 2018 水産海洋敎育硏究 Vol.30 No.4
We conducted questionnaires for customized radar simulation training for coastal and offshore (CAO) crews about customized radar simulation training according to domestic and international guidelines. The survey results showed that more than 80% of the respondents were aboard CAO fishing vessels and domestic tugboats, and their embarkation career was more than 10 years, but they had relatively lower deck officer certificates less than six classes. Since the current training is organized for all deck officers and small vessel operators, it has a limitation in providing customized training for crews in the CAO fishing vessels. Therefore, the radar simulation training for CAO crews is needed to be separated from both international and domestic sailing vessels. While the training for international sailing vessels are conducted for 30 hours and 5 days according to the IMO model course, the training time for domestic sailing vessels can be reduced to 20 hours and 3 days by adjusting the radar plotting and simulation training time. In addition, since the age of trainees is currently most in 50s and 60s (more than 65.2%), it can be desirable to reduce the time for principle and theoretical education and to increase the time for practice-oriented training. In the simulation training, scenario needs to be constructed for realistic waters such as southern and western coasts of Korea, and training program also needs to be restructured with commercial radar and GPS plotters using newly developed small vessel models. For these, it is necessary to construct a radar simulator centered on CAO vessels. Even if the function is somewhat lower than the computer-based ARPA in the system configuration, it is desirable to use the real radar for an effective radar simulation training that can contribute to the collision casualty reduction.
박태건 ( Tae Geon Park ),반전호이 ( Kohji Iida ),김욱성 ( Wook Sung Kim ),김성기 ( Sung Ki Kim ),김석재 ( Seok Jae Kim ),류경진 ( Kyong Jin Ryu ),이유원 ( Yoo Won Lee ) 한국수산해양기술학회 2015 수산해양기술연구 Vol.51 No.2
Hundreds of Steller sea lions, Eumetopias jubatus, migrate from Sakhalin and the northern Kuril Islands to Hokkaido in Japan every winter. During this migration, they may use their roaring sounds to navigate and to maintain their groups. We recorded the roars of wild Steller sea lions that had landed on reefs on the west coast of Hokkaido, and those of captive sea lions, while making video recordings. The fundamental frequency (F0), Formant frequency (F1), pulse repetition rate (PRR), and duration of syllables (T) were analyzed using a sonagraph. F0, F1, and PRR of the roars emitted by captive sea lions increased in the order male, female. By contrast, the F1 of wild males was lower than that of females, while the F0 and PRR of wild males and females did not differ statistically. These results suggest regional differences between the five groups showed that.
설문에 의한 6급 기관사 면허 면접시험 응시자의 성향 분석
박태건(Tae-Geon PARK),이유원(Yoo-Won LEE),김용복(Yong-Bok KIM) 한국수산해양교육학회 2014 水産海洋敎育硏究 Vol.26 No.5
The propensity analysis for oral exam candidates of sixth class engineer officers license was conducted to serve as a basic data for improving the ability of seamanship and a stable workforce supply using a questionnaire. A general information of them was identified as 62.1% of offshore fishing, 59.3% of over 50, 59.4% of less middle school education, 52.4% of under 100 gross tonnage, 75.2% of under 1,500kW engine output, 72.5% of over 10 years experience, 72.4% of engine department, which means they are from mainly less than 100 gross tonnage of offshore fishing vessel, less educated, and long term experienced in the engine job. The reason why they took the test was mainly due to their will (51.7%). And 45.5% of them took the test for the first time, 45.5% of answers responded they are lack of knowledge about a written exam and text of KIMFT in preparation data for an oral exam 35.9%. Given the fact that 74.5% of respondents experienced marine accidents with engine damage on board, the need for marine casualty reduction education was verified. Even after obtaining a license, they showed a higher preference of boarding that they embarked before the examination. Also, 61.4% of them have a plan for long-term boarding at least three years, thus leading to supply of workforce in coastal and offshore areas.