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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
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 37, Issue 6 - Dec 2013
Volume 37, Issue 5 - Oct 2013
Volume 37, Issue 4 - Aug 2013
Volume 37, Issue 3 - Jun 2013
Volume 37, Issue 2 - Apr 2013
Volume 37, Issue 1 - Feb 2013
Selecting the target year
A Study on the Errors in the Free-Gyro Positioning and Directional System
Jeong, Tae-Gweon ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 329~335
DOI : 10.5394/KINPR.2013.37.4.329
This paper is to develop the position error equations including the attitude errors, the errors of nadir and ship`s heading, and the errors of ship`s position in the free-gyro positioning and directional system. In doing so, the determination of ship`s position by two free gyro vectors was discussed and the algorithmic design of the free-gyro positioning and directional system was introduced briefly. Next, the errors of transformation matrices of the gyro and body frames, i.e. attitude errors, were examined and the attitude equations were also derived. The perturbations of the errors of the nadir angle including ship`s heading were investigated in each stage from the sensor of rate of motion of the spin axis to the nadir angle obtained. Finally, the perturbation error equations of ship`s position used the nadir angles were derived in the form of a linear error model and the concept of FDOP was also suggested by using covariance of position error.
A Study on the Estimation of Center of Turning Circle of Anchoring Vessel using Automatic Identification System Data in VTS
Kim, Kwang-Il ; Jeong, Jung Sik ; Park, Gyei-Kark ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 337~343
DOI : 10.5394/KINPR.2013.37.4.337
To ensure the safety for vessels anchored in stormy weather, duty officer and VTS operator have to frequently check whether their anchors are dragging. To judge dragging of the anchored vessel, it is important for VTS operator to recognize the turning circle and its center of the anchored vessel. The judgement for the anchored vessel dragging can be made by using Radar and AIS. If it is available, CCTV or eye-sighting can be used to know the center of turing circle. However, the VTS system collects individual ship`s dynamic information from AIS and ARPA radar and monitors of the anchored vessels, it is difficult for VTS operator not only to get the detailed status information of the vessels, but also to know the center of turning circle. In this study, we propose an efficient algorithm to estimate the center of turning circle of anchored vessel by using the ship`s heading and position data, which were from AIS. To verify the effectiveness of the proposed algorithm, the experimental study was made for the anchored vessel under real environments.
A Study on the Hydrodynamic Force Acting on a Large Vessel in the Proximity of Breakwater
Lee, Chun-Ki ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 345~350
DOI : 10.5394/KINPR.2013.37.4.345
It is well known that the hydrodynamic forces and moments induced by the proximity of bank in confined waters, such as in a harbour or narrow channel affect ship`s maneuvering motion. In this paper, the calculation method based on the slender body theory for estimation of the hydrodynamic force between ship and breakwater is applied, and also, the characteristic features of hydrodynamic force acting on a large vessel in the proximity of a breakwater are described and illustrated. Furthermore, the effects of water depth and the lateral spacing between ship and breakwater are summarized and discussed.
A Study on the Standard for Proper Position Rating Through Analysis of SBM Installation cases at home and abroad
Yun, Gwi-Ho ; Park, Jun-Mo ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 351~357
DOI : 10.5394/KINPR.2013.37.4.351
Korea is one of the world`s major oil importers. And a few domestic ports are operating SBMs for transferring imported crude oil to shore facilities. Recently, Ulsan port is planning to install additional new SBM and to move the existing two SBMs to other places according to the establishment of breakwater caused by the development of Ulsan New Port. However, there are no systematic and consistent standards for fixing the most suitable position domestically and internationally. This study aims to propose the standard of SBM installation using SAW after analyzing the examples of SBM operation and previous researches at home and abroad, and proposing the distribution rate based on opinion survey of exports and related organizations.
Determinants Affecting Thai Merchant Marine Students` Decision in Selecting a Maritime Institute in Thailand: Nautical Science Program
Luksanato, Sarawut ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 359~366
DOI : 10.5394/KINPR.2013.37.4.359
The objective of the research was to study the determinants affecting the decision to study nautical science program within a Thai maritime institute in preparation for working post-graduation as a ship officer on a merchant ship. The samples are classified by institute, academic year, cumulative score level, domicile, and parent`s monthly income. The total sample of study was 386 Thai merchant marine students. The data collection method was a one to five rating scale questionnaire. The statistical methods applied in analyzing the data were percentage, mean, standard deviation, t-test, one way analysis of variance and a Sheffe`s test. The study shows seven factors that influenced the decision in descending order; expectations, tuition and scholarships, selection system, quality of the institute, background and private capability, generality of the institute and external influences on the decision. The decision to select an institute was classified by institute and revealed that different institutes had distinct determinants that led to the decision. The students were from The Merchant Marine Training Center and from The International Maritime College, Kasetsart University were differences. There were no dissimilarity between academic year, cumulative score level, domicile, and parent`s monthly income.
Performance analysis of WA-DGNSS in Korea with the selection of reference stations
Han, Deokhwa ; Yun, Ho ; Kee, Changdon ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 367~373
DOI : 10.5394/KINPR.2013.37.4.367
Wide area differential GNSS(WA-DGNSS) collects GPS measurements from the several reference stations and estimates 3-D satellite orbit error, satellite clock error, ionospheric delay. These correction messages are broadcasted to user, then user can have more accurate and reliable position estimates. The performance of WA-DGPS can be changed depending on the position of reference stations. To select proper reference stations, performance analysis with the change of reference stations is necessary. In this paper, changing the geographical location of reference stations, we carried out simulation based test and show the performance of WA-DGNSS in Korea.
A generation method of ASF mapping by the predicted ASF with the measured one in the Yeongil Bay
Hwang, Sang-Wook ; Shin, Mi Young ; Choi, Yun Sub ; Yu, Donghui ; Park, Chansik ; Yang, Sung-Hoon ; Lee, Chang-Bok ; Lee, Sang Jeong ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 375~381
DOI : 10.5394/KINPR.2013.37.4.375
In order to establish eLoran system it needs the betterment of a receiver and a transmitter, the add of data channel to loran pulse for loran system information and the differential Loran for compensating Loran-c signal. Precise ASF database map is essential if the Loran delivers the high absolute accuracy of navigation demanded at maritime harbor entrance. In this study we developed the ASF mapping method using predicted ASFs compensated by the measured ASFs for maritime in the harbor. Actual ASF is measured by the legacy Loran signal transmitted from Pohang station in the GRI 9930 chain. We measured absolute propagation delay between the Pohang transmitting station and the measurement points by comparing with the cesium clock for the calculation of the ASFs. Monteath model was used for the irregular terrain along the propagation path in the Yeongil Bay. We measured the actual ASFs at the 12 measurement points over the Yeongil Bay. In our ASF-mapping method we estimated that the each offsets between the predicted and the measured ASFs at the 12 spaced points in the Yeongil. We obtained the ASF map by adjusting the predicted ASF results to fit the measured ASFs over Yeungil bay.
A Study on the Improvement of Maritime Traffic Safety Assessment Scheme by applying Metaevaluation Model
Cho, Ik-Soon ; Cho, Kyung-Min ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 383~390
DOI : 10.5394/KINPR.2013.37.4.383
After forming a institutional framework with specified in Maritime Safety Law(ex. Maritime Traffic Safety Law) on May 27th, 2009, The efforts for improving `Maritime Traffic Safety Assessment Scheme(MTSA scheme)` have continued to the present. But there`s no review with the comprehensive and systematic approach for proceeding acceleration step of MTSA scheme. At this point, this study analyzed current status and derived improvement measures using by `PIP`OU model` which was designed for the comprehensive analysis in accordance with metaevaluation theory, like as question investigation and etc. Consequently, it mainly needs to improve `Assessment Plan` domain and minimized the difference in views between concerned parties. This study is expected to be used to develop systematic maritime policy by proposing the order of priority in improvement matters.
A Study on Operation Analysis and Improvement Method of Aids to Navigation AIS in Korean West Coast
Gug, Seung-Gi ; Jeong, Tae-Gweon ; Park, Hye-Ri ; Kim, Jeong Rok ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 391~400
DOI : 10.5394/KINPR.2013.37.4.391
Each country has recently established and operated so called Aids to Navigation(AtoN) AIS system collecting and transferring information on the sea state and AtoN`s position. Korea has also decided to introduce the system and been establishing it. And it has already installed and operated this system in Incheon and Daesan. For the purpose of giving the national standards of AtoN AIS, this paper is to investigate the present states of AtoN AIS systems in the above two area and to suggest the improvement to the operation of AtoN AIS system. To make it, the paper deals with the international regulations of related AtoN AIS and the cases of foreign`s AtoN AIS system installed and also investigates the operation states of the system, in five modules such as system management, system composition, information, function and cooperation. The followings are concluded; improving the inconsistency of system management, reducing operator`s confusion caused by excessive display of AtoN AIS system, improving the problem of receiving unnecessary information, improving the functional problems caused by AIS communication inability and improving AtoN AIS information which is presently not used on board.
Selection of Auditory Icons in Ship Bridge Alarm Management System Using the Sensibility Evaluation
Oh, Seungbin ; Jang, Jun-Hyuk ; Park, Jin Hyoung ; Kim, Hongtae ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 401~407
DOI : 10.5394/KINPR.2013.37.4.401
In parallel with the development of ship equipment, bridge systems have been improved, but marine accidents due to human error have not been reduced. Recently, research in nautical bridge equipment has focused on suitable ergonomic designs in order to reduce these errors due to human factors. In a bridge of a ship, there are numerous auditory signals that deliver important information clearly to the sailors. However, only a few studies have been conducted related to the human recognition of these auditory signals. There are three types of auditory signals: voice alarms, abstract sounds, and auditory icons. This study was conducted in order to design more appropriate auditory icons using a sensibility evaluation method. The auditory icons were rated to have five warning situations (engine failure, fire, steering failure, low power, and collision) using the Semantic Differential Method. It is expected that the results of this study will be used as basic data for auditory displays inside bridges and for integrated bridge alarm systems.
A Study on Flooding Prevention Scheme due to Sea Level Rise at Young-do Coast in Busan
Hong, Sung-Ki ; Kang, Yong-Hoon ; Lee, Han-Seok ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 409~418
DOI : 10.5394/KINPR.2013.37.4.409
On the assumption of the rise of sea level, the inundation vulnerabilities on coastal areas of Korea are evaluated in different ways. The propose of this study is to find out the influences of sea level rise caused by global warming at Young-do coastal area, and to suggest the prevention schemes against the flooding damage caused by the sea level rise. The potential rates of sea level rise are assumed and with these rates the inundation vulnerabilities are simulated using CAD program. With the virtual maps, as the results of the previous CAD simulation, this study attempts to suggest the flood prevention schemes for each sector of damage-expected coastal area.
Analyses of the Advanced Countries` Related Regulations and Perceptions to Improvement Directions for Water Leisure Activation
Cho, Woo-Jeong ; Jang, Bo-Young ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 419~427
DOI : 10.5394/KINPR.2013.37.4.419
The purpose of this study was to analyze the perceptions to improvement directions of related regulations for water leisure activation. In order to accomplish such study purpose, the study utilized a survey methodology with 205 water leisure participants and 117 water leisure business employees. In addition, this study attempted to review the license and education system, registration and inspection system and business organizations from the advanced countries such as US, British, Australia and Japan. Accordingly, following findings were derived from current study. First, the problems of current license system included difficulty of operating the system and deficiency of operating organizations, and the improvement directions included expansion of education organizations and differentiation of education based on levels. Second, the improvement directions of registration and inspection included simplification of registration procedures and expansion of registration and inspection organizations. Third, difficulties perceived by business employees included complexity of entry and departure, complexity of registrating water leisure business and insufficiency of supporting business policies. In conclusion, water leisure related regulations including Water Leisure Safety Act need to be reformed continuously to reflect changing demands and needs from participants and business sectors.
A Study on the Effect of Swift Trust on the Cohesiveness and Organizational Effectiveness of Ship Organization
Kim, Jong-Tea ; Cho, Ho-Heang ; Shin, Yong-John ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 429~438
DOI : 10.5394/KINPR.2013.37.4.429
This study set up research models and hypothesis in order to analyze those factors assuming that swift trust affects group cohesiveness, group cohesiveness affects organizational civil activities and organizational effectiveness (job satisfaction and organizational commitment) and at the same time plays as a medium for the swift trust, organizational civil activities and organizational effectiveness. Based upon these finding, variables in the ship unit are analyzed through surveys. This shows that the swift trust has statistically a meaningful and beneficial impact on group cohesiveness which has statistically a meaningful and beneficial impact on organizational civil activities and organization effectiveness. In terms of effects of crew members` the swift trust on organizational civil activities, organizational commitment, and job satisfaction, group cohesiveness has a partial medicated effect.. This paper has its significance in practically proving that the established swift trust of crew members increase group cohesiveness, the heightened group cohesiveness results in the changes of behaviors and attitudes of crew members in the seagoing vessel.
A Study on Measures for Strengthening Local Logistics Company`s Competitiveness to Entry into UN (Market)
Shin, Seok-Hyun ; Kwak, Kyu-Seok ; Kwon, Moon-Kyu ;
Journal of Navigation and Port Research, volume 37, issue 4, 2013, Pages 439~445
DOI : 10.5394/KINPR.2013.37.4.439
Domestic large group logistics company(2nd-party logistics company)has made inroads on large portion of domestic logistics market, whereby the domestic 3rd-party logistics market has been shrinking every year to a level of 30% or so. Global logistics enterprise is steadily increasing 3rd-party global market portion while Local one facing with stagnating growth has very minimal level in the global market share. Fortunately new government strengthening policy change toward local SME and also recent UN`s supplying line enlargement to Asia regions are positive factors which make Local SME very positive environments to advance to UN procurement logistics market. On this occasion, the purpose of this paper is to help local logistics company perform successful bidding through study of UN-transportation case and also suggest in SWOT analysis a segmented measure and support policy between Industry, Academia, Government and Institute.