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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Navigation and Port Research
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Journal DOI :
Korean Institute of Navigation and Port Research
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Volume & Issues
Volume 38, Issue 6 - Dec 2014
Volume 38, Issue 5 - Oct 2014
Volume 38, Issue 4 - Aug 2014
Volume 38, Issue 3 - Jun 2014
Volume 38, Issue 2 - Apr 2014
Volume 38, Issue 1 - Feb 2014
Selecting the target year
Development of Computer Program for Solving Astronomical Ship Position Based on Circle of Equal Altitude Equation and SVD-Least Square Algorithm
Nguyen, Van-Suong ; Im, Namkyun ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 89~96
DOI : 10.5394/KINPR.2014.38.2.89
This paper presents an improvement for calculating method of astronomical ship position based on circle of equal altitude equation. In addition, to enhance the accuracy of ship position achieved from solving equation system, the authors used singular value decomposition (SVD) in least square method instead of normal decomposition. In maths, the SVD was proved more numerically stable than normal decomposition. Therefore, the solution of equation system will be more efficient and the result would be more accurate than previous methods. By proposal algorithm, a computer program have been developed to help the navigators in calculating directly ship position when the modern equipment has failure. Finally, some of experiments are carried out to verify effectiveness of proposed algorithm, the results show that the accuracy of ship position based on new method is better than the intercept method.
Estimation of Hydrodynamic Derivatives of Submarine Model by Using VPMM Test
Jung, Jin-Woo ; Jeong, Jae-Hun ; Kim, In-Gyu ; Lee, Seung-Keon ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 97~103
DOI : 10.5394/KINPR.2014.38.2.97
In these days, the world has been increasing navy forces such as aircraft carriers and high-tech destroyers etc. and the importance of submarines is being emphasized. Therefore, accurate values of the derivatives in equations of motion are required to control motion of the submarines. Hydrodynamic derivatives were measured by the vertical planar motion mechanism(VPMM) model test. VPMM equipment gave pure heave and pitch motion respectively to the submarine model and the forces and moments were acquired by load cells. As a result, the hydrodynamic derivatives of the submarine are provided through the Fourier analysis of the forces and moments in this paper.
Selection of Light Character for Marking with Lights on Offshore Wind Farms
Yang, Hyoung-Seon ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 105~110
DOI : 10.5394/KINPR.2014.38.2.105
Korean government sets up a goal that jumps up to the third ranked powerful nation of offshore wind in the world until 2020 and announced "The plan for 2.5-gigawatt wind farm off the south-west coast by 2019". Such above, according to green energy policy, offshore wind farms(OWF) will be increased continuously. The development of OWF should be taken account of wind volume as well as marine traffic environment. Specially aids to navigation of OWF play a significant role in preventing collision between vessels navigating near waters and structures. For purpose of distinguishing OWF, IALA recommendations define installation of lights on SPS and IPS. However, there is no mention of light character that plays important role in identification of lights as marking offshore wind farm. Also the research on selection of proper light character has been insufficient state. Therefore in this paper, we analyzed internal and external regulations concerned marking with light on SPS and IPS in OWF. And suggested patterns and rhythms of light having not only easily recognized feature but also no confusion with other light of aids to navigation. The proposed light characters were verified by simulation, and the results were analysed that synchronism flickering of "Fl Y(4) 12s(SPS)" and "Fl Y 6s(IPS)" would be useful in combination of both lights.
The Effects on the Trust of the Leaders and Organizational Commitment on the Revolutionary Leadership to Canoe Leaders
Oh, Byung-Hoon ; Seok, Kang-Hoon ; Lee, Jae-Hyung ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 111~120
DOI : 10.5394/KINPR.2014.38.2.111
The purpose of this study was to find out how a canoe leader's revolutionary leadership affects his trust and how a leader's trust affects the organizational commitment. 350 participants were selected out of male and female registered as canoeists by the Korea Canoe Federation in 2011 through the random sampling. Except for 26 data with those not seriously taken, 324 responses were taken as valid samples. Frequency analysis, reliability analysis, factor analysis, correlation analysis, and multi-regression analysis have been conducted. The conclusion is as follows: First, a leader's revolutionary leadership positively affects his trust. Secondly, a leader's revolutionary leadership has a positive effect on his organizational commitment. Lastly, a leader's trust positively affect the organizational commitment.
A Study on the DGPS Service Utilization for the Low-cost GPS Receiver Module Based on the Correction Projection Algorithm
Park, Byung-Woon ; Yoon, Dong-Hwan ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 121~126
DOI : 10.5394/KINPR.2014.38.2.121
This paper suggests a new algorithm to provide low-cost GPS modules with DGPS service, which corrects the error vector in the already-calculated position by projecting range corrections to position domain using the observation matrix calculated from the satellite elevation and azimuth angle in the NMEA GPGSV data. The algorithm reduced the horizontal and vertical RMS error of U-blox LEA-5H module from 1.8m/5.8m to 1.0m/1.4m during the daytime. The algorithm has advantage in improving the performance of low-cost module to that of DGPS receiver by a software update without any correction in hardware, therefore it is expected to contribute to the vitalization of the future high-precision position service infrastructure by reducing the costumer cost and vender risk.
Designing ESP Curriculum for EFL Learners at College of Navigation
Choi, Seung-Hee ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 127~134
DOI : 10.5394/KINPR.2014.38.2.127
This paper aims to identify what is needed to improve the English for Specific Purposes(ESP) curriculum for English as a Foreign Language(EFL) college learners at navigation school. Different needs from learners and experienced professionals are identified through diversified methods, and the findings from these are analysed and consolidated from a balanced point of view. For this purpose, putting learners at the centre of analysis, identifying their subjective and objective needs serves as a point of departure in formulating the curriculum. Then, the target situation is analysed according to the short-term aim of getting a job, followed by long-term needs for successfully fulfilling future duties as a pilot. Based on findings, it is suggested that ESP curriculum for learners in navigation studies should be focused on the successful language performance of their actual duties and tasks to be given in the future working situations, rather than on immediate needs for getting a job. In particular, special attention needs to be paid to enhancing learners' productive language competences through a series of hands-on trainings and a wide range of extra-curricular activities, specifically for a higher command of oral communication. For this, not only ESP, curriculum for EGP(English for General Purposes) should be systematically structured as ESP-oriented EGP, and naturally move onto areas of ESP in a coherent manner.
A Study on the Compliance of Crew Rest Hour of Maritime Labour Convention for Shuttle Vessels Operating between Korea and Japan
Ha, Weon-Jae ; Kim, Geun-Hyeo ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 135~140
DOI : 10.5394/KINPR.2014.38.2.135
The actual observance of hours of rest became one of the main checking items of PSC after enter into force of Maritime Labour Convention in 20 August 2013. And the non-compliances of the rest hours stipulated in the provisions of Seafare's Act of Korea and MLC is occuring and this would be the great obstruction for the shuttle vessels operating between Korea and Japan. In this study, to find the method which could give solution for the observance of provisions of rest hours, the modified duty model, reduction of calling ports and substitute of port duty by shore assistance personnel were reviewed. To comply with the requirement of hours of rest by shuttle vessels operating between Korea and Japan, adoption of the method to reduce calling ports or substitution of port duty by shore personnel are recommended.
A Study on the Preparedness of Port State Control for the Enforcement of NIR
Kim, Chu-Hyong ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 141~146
DOI : 10.5394/KINPR.2014.38.2.141
NIR(New Inspection Regime, hereinafter NIR) relating to the PSC(Port State Contorl, hereinafter PSC) has implemented in Asia-Pacific region under Tokyo-MOU from last January 2014. The most noticable difference between NIR and existing TF(Target Factor, hereinafter TF) is to evaluate company performance and to conduct PSC with flexible inspection interval on the basis of Ship Risk Profile; High Risk Ship, Standard Risk Ship and Low Risk Ship. Particularly deficiencies related to ISM Code, more than 5 deficiencies and detention record have a serious effect on the evaluation of Ship Risk Profile. Therefore ship and company are requested to ensure proper implementation of Safety Management System for the changed PSC tendency. Also RO(Recognized Organization, hereinafter RO) and Administration respectively should take suitable actions different to previous measures, such as implementation of cooperation and support system between vessel and company, changing subject and object for avoiding Mannerism in SMS audit, strengthening supervision on RO by Administration and establishment of private-public Partnership network.
The Correlation between Participating in the Extreme Sports, and the Flow Experience and the Satisfaction of Life
Hwang, Yu-Rhee ; Seok, Kang-Hoon ; Lee, Jae-Hyung ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 147~154
DOI : 10.5394/KINPR.2014.38.2.147
The purpose of this study was to identify the correlation among participating in the extreme sports, the flow experience and the satisfaction of life. 420 participants of the extreme sports were selected by the Judgement Sampling Method. Factor analysis and multi-regression analysis have been conducted. The conclusion is as follows. First, the participants' life satisfaction is partially affected by the duration period and term. Second, period, frequency, duration partially effect to life satisfaction. Third, flow experience partially effect to life satisfaction.
Optimization of Dispatching Strategies for Stacking Cranes Including Remarshaling Jobs
Kim, Taekwang ; Yang, Youngjee ; Bae, Aekyoung ; Ryu, Kwang Ryul ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 155~162
DOI : 10.5394/KINPR.2014.38.2.155
In container terminals, stacking yard is the place where import and export containers are temporarily stored before being loaded onto or after being discharged from a ship. Since all the containers go through the stacking yard in their logistic flow, the productivity of the terminal critically depends on efficient operation of stacking yard, which again depends on how well the stacking locations of the incoming containers are determined. However, a good location for stacking an incoming container later can turn out to be a bad one when that container is to be fetched out of the stacking yard, especially if some rehandling is required. This means that good locations for the containers are changing over time. Therefore, in most container terminals, the so-called remarshaling is done to move the containers from bad location to good locations. Although there are many previous works on remarshaling, they all assume that the remarshaling can be done separately from the main jobs when the cranes are idle for rather a long period of time. However, in reality, cranes are hardly available for a period long enough for remarshaling. This paper proposes a crane dispatching strategy that allows remarshaling jobs to be mixed together with the main jobs whenever an opportunity is detected. Experimental results by simulation reveals that the proposed method effectively contributes to the improvement of terminal productivity.
A study on entry into the offshore service market through slack model
Oh, Jin-Seok ; Kim, Gil-Soo ; Merdas, Reza ; Jang, Jae-Hee ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 163~170
DOI : 10.5394/KINPR.2014.38.2.163
Domestic offshore business is oriented toward building drill-ships, FPSOs(Floating Production Storage and Off loading). But the equipments needed for offshore platforms are not so developed in Korea because the equipments can not be verified in Korean territory where the offshore platforms are not stationed. This study aims at finding some methods on entering into OSI for the maintenance and disassembly of fixed offshore platforms. Slack model is adopted to find out how slack assets could play a role in penetrating foreign markets. Firstly, entry into the South East Asian market is recommended. Secondly, forming a consortium is suggested by which taking part in offshore market can be easier. Finally, strategic plans for obtaining the technology for ship building equipments are needed as well as government support.
Container Transportation Models in Industrial Estate Area
Shin, Jae Young ; Kim, Woong-Sub ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 171~176
DOI : 10.5394/KINPR.2014.38.2.171
Companies are facing challenges to have high competitiveness because of continuous oil price rising and CO2 emissions regulations. Thus, companies are trying hard to construct effective logistics and operation system to achieve high customer service quality and saving cost. Also the ec-friendly idustrial complex is needed. Busan is in process to construct GILC(Global Industry Logistics City) in west Busan province to achieve high competitiveness and support lack of industrial complex. To construct this kind of logistics industrial complex, it needs logistics system through proper policy and freight transportation co-operation. Especially, efficient management through logistics hierarchy construction in industrial complex is very important for low cost and eco-friendly point of view. Therefore, this paper aims to analyze logistics system and suggest operation model to present logistics complex construction base data.
Assessing Critical Factors of Brand Equity for Container Liner Shipping Companies using Analytic Hierarchy Process
Jang, Hyun Mi ; Kim, Sang Youl ; Park, Ho ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 177~184
DOI : 10.5394/KINPR.2014.38.2.177
Recently, brand equity is paid much attention in various industries. However, container liner shipping companies are still unfamiliar with this concept, and also the brand equity model has not been tested yet in shipping context. This study, therefore, aims to measure the relative importance of brand equity factors of container liner shipping companies by employing AHP (Analytic Hierarchy Process). This study concludes that perceived quality, in particular cost-related service quality, is the most influential factor of brand equity, while weak support is found for brand association. In addition to this, group comparisons were conducted between shipping companies, freight forwarders and academics. The results will be useful as they firstly define brand equity and its role in shipping context, highlighting the significance of brand management to container liner shipping firms. This evaluation is not an end in itself, but will eventually be utilised as a tool to build competitive advantage which cannot be easily imitated by competitors.
Contribution of Gerard Mercator's Map of 1569 for the History of Navigation
Kim, Sung-June ; Luc, Cuyvers ;
Journal of Navigation and Port Research, volume 38, issue 2, 2014, Pages 185~191
DOI : 10.5394/KINPR.2014.38.2.185
With the 500th anniversary commemoration of Gerard Mercator's birth in 2012 now passed, there is the possibility that his name will fade back into obscurity. This would be both unfair and pitiful, because Gerard Mercator's name should be highly regarded as one of the principal contributors to navigational science and the promotion of marine safety. An accomplished cartographer, in 1569 Mercator published a remarkable 18-folio world map, depicting the then-known world in a new format with straight rhumb lines. While this distorted the size of land masses, particularly in higher latitudes, this new projection made navigation much easier for now all sailors had to do was to draw a straight line between two points to plot their course. Mercator clearly had this navigational benefit in mind, though his contemporaries did not immediately recognize its value. It wasn't until after Mercator's death, when Edward Wright (1599) and Henry Bond (1645) used and explained the new projection and demonstrated the use of straight rhumb lines in navigation that the Mercator projection became the standard for sea charts. Today, 450 years later of his death, electronic charts still rely on the projection Mercator invented and developed, confirming his position as a giant in the history of navigation. This paper introduces his life and work, detailing the importance of the 1569 world map and its contribution to navigational science and safety.