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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Navigation and Port Research
Journal Basic Information
Journal DOI :
Korean Institute of Navigation and Port Research
Editor in Chief :
Volume & Issues
Volume 33, Issue 9 - Dec 2009
Volume 33, Issue 10 - Dec 2009
Volume 33, Issue 8 - Oct 2009
Volume 33, Issue 7 - Sep 2009
Volume 33, Issue 6 - Aug 2009
Volume 33, Issue 5 - Jun 2009
Volume 33, Issue 4 - Jun 2009
Volume 33, Issue 3 - Apr 2009
Volume 33, Issue 2 - Mar 2009
Volume 33, Issue 1 - Mar 2009
Selecting the target year
A Study on the Improvement of LNGC Re-liquefaction System
Oh, Cheol ; Song, Young-Uk ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 659~664
DOI : 10.5394/KINPR.2009.33.10.659
LNG carriers have, up to 2006, mainly been driven by steam turbines. The Boil-Off Gas from the LNG cargo tanks has so far been used as fuel. This is a costly solution that requires special skills during construction and operation. Alternative propulsion systems offer far better fuel economical efficiency than steam turbines. Instead of previous practice using Boil-Off Gas as a fuel, the Re-liquefaction system establishes a solution to liquefy the Boil-Off Gas and return the LNG to the cargo tanks. This Re-liquefaction of Boil-Off Gases on LNG carriers results in increased cargo deliveries and allows owners and operators to choose the most optimum propulsion system. In this study, thermodynamic cycle analysis has been performed on two type of LNG Re-liquefaction system which was designed and adopted for the Q-Flex(216,000
) and Q-Max(266,000
) LNG carrier under construction at Korea ship yards and variable key factor was simulated to compare efficiency, power and nitrogen consumption of each Re-liquefaction system.
Relation with Operational Stress and Environmental Difficulty on Maneuvering of Ship
Seong, Yu-Chang ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 665~669
DOI : 10.5394/KINPR.2009.33.10.665
When maneuvering a ship in a narrow channel or under bridge, the ship operator may take actions of slowdown engine and altering course in order to avoid possible navigational dangers, which may reduce difficulties on navigation or collsion avoidance against other ship and/or bridge. In this paper, taking notice of the stress caused by these actions of slowdown engine and altering course, survey is carried out for whether it is possible to quantify the stress by time delay as an index. Based on the ship handling simulator experiment, it is verified that difficulty of navigation changes is highly correlated with the time delay, which result from compensation actions of slowdown engine and altering course.
Defect Detection of Ship Engine using duplicated checking of vibration-data-distinction Method and Classification of fault-wave
Lee, Yang-Min ; Lee, Kwang-Young ; Bae, Seung-Hyun ; Shin, Il-Sik ; Jang, Hwi ; Lee, Jae-Kee ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 671~678
DOI : 10.5394/KINPR.2009.33.10.671
Recently, there have been some researches in the equipment fault detection based on shock and vibration information. Most research of them is based on shock and vibration monitoring to determine the equipment fault or not. Different with engine fault detection based on shock and vibration information we focus on detection of engine for boat and system control. First, it use the duplicated-checking method for shock and vibration information to determine the engine fault or not. If there is a fault happened, we use the integral to determine the error engine shock wave width and detect the fault area. On the other hand, we use the engine trend analysis and standard of safety engine to implement the shock and vibration information database. Our simulation results show that the probability of engine fault determination is 98% and the probability of engine fault detection is 72%
A Study on Typhoon Numbers and Intensity According to the Sea Areas of Occurrence
Seol, Dong-Il ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 679~683
DOI : 10.5394/KINPR.2009.33.10.679
Typhoon numbers and intensity according to the sea areas of occurrence(sea area of A : Caroline Marshall Islands and vicinity, sea area of B : north of
, sea area of C : greater coasting area of Philippines, sea area of D : South China Sea) were analyzed for 22years from 1986 to 2007 using the meteorological administration's data. Yearly mean typhoon numbers are 26.3 and are showed decreasing trend in the sea areas of A, B, C and D. The decreasing trend is especially notable in the sea area of A and is slight in the sea area of D. Yearly mean typhoon number is most in the sea area of A(13.8, about 53％ of all), the next orders are the sea area C(5.6, about 21％), sea area of B(3.8, about 14％) and sea area of D(3.1, about 12％). Typhoon intensity is strongest in the sea area of A(mean central minimum pressure : 951hPa), the next orders are the sea area C(970hPa), sea area of B(975hPa) and sea area of D(983hPa). The time series of yearly mean central minimum pressures for whole sea area is showed slightly decreasing trend, it means that typhoon intensity is strengthened gradually. Results of this ste seare in accord with simulated results on typhoon vntrations in the global warming.
Implementation of Aeronautical Surveillance Transceiver using AIS based on ADS-B Concepts
Song, Jae-Hoon ; Oh, Kyung-Ryoon ; Kim, Jong-Chul ; Lee, Jang-Yeon ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 685~690
DOI : 10.5394/KINPR.2009.33.10.685
International Maritime Organization (IMO) recommends the installation of an Automatic Identification System (AIS) according to requirements by SOLAS to avoid maritime collision. AIS provides traffic information of other ships that may be used for maritime traffic control, SAR (Search and Rescue) and collision avoidance to apply safety management. In this paper, preliminary results to implement an aeronautical surveillance transceiver using AIS transceiver based on ADS-B concepts are described. Although altitude information is not required for AIS since the AIS is operated at MSL (Mean Sea Level), altitude information can be extracted by a GPS (Global Positioning System) chip-set in the AIS transceiver. ADS-B transceiver is implemented by defining a surveillance message format including the altitude information and modifying SOTDMA (Self-Organizing Time Division Multiple Access) protocol. Ground tests and flight tests are performed to validate the implementation results.
A Study on Design of Reference Stations and Integrity Monitors for Maritime DGPS Recapitalization
Park, Sang-Hyun ; Seo, Ki-Yeol ; Cho, Deuk-Jae ; Suh, Sang-Hyun ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 691~697
DOI : 10.5394/KINPR.2009.33.10.691
Hardware dedicated off-the-shelf maritime differential GPS RSIM lacks the open architecture to meet all the minimum maritime user requirements and to include future GNSS improvements after recapitalization. This paper carries out a study to replace existing hardware dedicated differential GPS RSIM with software differential GPS RSIM in order to make up the weak point of hardware dedicated off-the-shelf maritime differential GPS RSIM. In this paper, the architecture of software RSIM is proposed for maritime DGPS recapitalization. And the feasibility analysis of the proposed software differential GPS RSIM is performed as the first phase to realize the proposed architecture. For the feasibility analysis, the prototype RF module and DSP module are implemented with properties as wide RF bandwidth, high sampling frequency, and high speed transmission interface. This paper shows that the proposed architecture has the possibility of real time operation of software RSIM functionality onto the PC-based platform through the analysis of computation time. Finally, this paper verifies that the L1/L2 dual frequency software differential RSIM designed according to the proposed method satisfies the performance specifications set out in RTCM paper 221-2006-SC104-STD.
A Study of GPS Precise Ephemeris Interpolation for Maritime Precise Positioning Applications
Cho, Deuk-Jae ; Park, Sang-Hyun ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 699~702
DOI : 10.5394/KINPR.2009.33.10.699
Currently many vessels determine an overhead obstruction by a rule of thumb based on their draft for maritime navigation. Therefore they doesn't have a good overhead obstruction clearance because vertical position of vessels varies on time by tidal. As a result, it is occurred maritime accidents that the mainmast of vessels is bumped against overhead facilities. And disaster by global warming and rising sea levels have increased casualties. So we feel keenly the necessity of warning system for not an earthquake but disaster wave such a tsunami. This paper analyzes a precise GPS ephemeris for maritime precise positioning to solve these problems. The precise GPS ephemeris provided by International GNSS service gives a difficulty to real-time application because of its sample interval. This paper proposes an effective interpolation method for real-time application, and it analyzes an accuracy of precise GPS ephemeris through an interpolation method.
Analysis of Numerical Experiment for Field Application of Cylindrical Slit Type Block Breakwater
Park, Sang-Gil ; Lee, Joong-Woo ; Nam, Ki-Dae ; Kim, Pill-Sung ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 703~707
DOI : 10.5394/KINPR.2009.33.10.703
In order to evaluate applicability of cylindrical slit type block breakwater to the field water, which was designed from the previous physical model study, it is analyzed the calmness of harbor area by the numerical model experiment. For a small fishery port in southern coast of Korea a SWAN model using the wave action balance equation was formulated. The reflection and transmission coefficients induced by the physical model test were introduced to the numerical model. The model response with cylindrical slit type breakwater was compared with the impermeable breakwater case and the possibility of water quality improvement through the water circulation by the new structure was investigated. For numerical simulation, parameters of deepwater design wave from the prediction report II for overall deepwater design wave by KORDI were used and wind parameters from the 50years return period observed for 37years(1970~2006) were adopted in the numerical model. The response of west breakwater in Mijo port applying the NE and NNE waves, which were dominant in this area, was analyzed. It was found that the transmission characteristic of designed cylindrical slit breakwater was well presented in the numerical model.
Design of Auto Feed Supply System for Fish Farm
Oh, Jin-Seok ; Jo, Kwan-Jun ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 709~713
DOI : 10.5394/KINPR.2009.33.10.709
Water pollution of coast has a significant impact on the fish farm and fisheries. For solving the water pollution problems the fish farms are moving to the open sea. The fish farms in open sea have to operate by the automatic feeding system and remote monitoring system for safety and management. This paper describes an automatic feeding system for fish farms in open sea. Water temperature and fish weight will change depending on the amount of feed. And the fish farm temperature is changed extremely in open sea than on land side. This paper described that the feed amount is calculated automatically according to temperature, fish weight, and the automatic feed system. And the performance of automatic feed system is verified with test model for operation test.
Container Selecting Methods for Remarshaling Considering Restricted Idle Time of Crane in an Automated Container Terminal
Kim, Ji-Eun ; Park, Ki-Yeok ; Park, Tae-Jin ; Ryu, Kwang-Ryel ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 715~722
DOI : 10.5394/KINPR.2009.33.10.715
In Automated Container Terminal, the remarshaling is the task of rearranging containers for the effective exporting operations. Since available time for the remarshaling is usually restricted, all containers cannot be remarshaled. Therefore, this paper proposes a method that selects some containers from all export containers and then establishes the remarshaling plan with only the selected containers. The experimental results using simulation system shows that our proposal planning method that plans after selecting remarshaling containers is better than plans with all loading containers and remarshals during the available time.
A Study on Ship Planning System for Container Terminal Using Multi-Distributed Method
Choi, Hyung-Rim ; Shin, Gae-Hyun ; Kwon, Hae-Kyoung ; Shon, Jung-Rock ; Park, Sang-Hun ; Joo, Yi-Don ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 723~734
DOI : 10.5394/KINPR.2009.33.10.723
Container Vessel is becoming larger and faster thanks to the rapid growth of global trade and development of technology. Therefore, 15,000TEU vessel is expected to be ordered in near future. Every nations in north-east Asia are facing strong competition to be logistics hub to get the initiatives of logistics in response to the rapid change of logistics environment. According to the globalization of economy and major ports in this region also are trying to catch big shipping line for their survival. Considering above circumstances of the advent of ultra-large container vessel and spoke-and-hub strategy, it is inevitably necessary to make a fast and accurate vessel job in the terminal in order to be a leading port To meet this objective, current vessel planning system has to be improved innovatively. Therefore, this thesis propose multi distributed vessel planning system which enables multi loading/discharging planning with several planner simultaneously for faster and more accurate than existing planning and enhances quality of planning through information sharing among planners. Also this thesis uses simulation through Arena to verify the efficiency of this multi-distributed vessel planning system.
A Study on the Evaluation of the Information Security Level in Major Container Terminals
Lee, Hong-Girl ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 735~742
DOI : 10.5394/KINPR.2009.33.10.735
Information security is an essential factor that enables terminal to be operated. However, despite of this importance of information security, there has hardly been any research related to this topic. And moreover, current level of information security performance in container terminals has not been analyzed so far. The objective of this study is to evaluate current level of information security in container terminals. Through survey from the four leading container terminal operators in Korea, The results firstly showed that average of information security level of major container terminals was 71.7%. And from the results of data analysis, it revealed that the weak point of information security in Korean container terminals was security management, and in detail, lack of expertise of support group.
The Governance and Agent Problems of Public Agency: Focused on the Port Authority of New York and New Jersey
Kang, Yun-Ho ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 743~756
DOI : 10.5394/KINPR.2009.33.10.743
This paper tries to analyze how the governance institutions of the Port Authority of New York and New Jersey overcome agent problems in public agencies based on the Principal-Agent Theory, and find the implications that will be helpful to the governance of port authorities in Korea. The Port Authority's governance is characterized by decentralization of personnel rights, open meetings policy, freedom of information policy, public hearings, and fiscally self-supporting system. Those characteristics are helpful in overcoming the agent problems of public agency, such as adverse selection, moral hazard, and complicated external structure, through reinforcing of monitoring agent by principal, easing of information asymmetry between principal and agent, and clarification of organizational ownership structure. Those characteristics may give many implications for the design of governance structures of port authorities in Korea.
Demand Forecasting and Activation Policies for Tourism of Fishing Regions
Kang, Yun-Ho ; Jung, Mun-Soo ; Woo, Yang-Ho ; Kim, Sang-Gu ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 757~769
DOI : 10.5394/KINPR.2009.33.10.757
This paper is intended to forecast the demand for tourism of fishing regions and find the public policies to activate it. The paper focuses on the east coast regions in Gangwon-do. The analysis was conducted through time series analyses and surveys of the tourists in the regions. The results of analyses showed that, while the number of tourists(both domestic and foreign) to the regions has increased, the regions have not been able to accommodate them enough to help improve economies of the regions. It was forecasted that the number of tourists will significantly increase in the future. However, that rates of increase, especially the rates of increase of foreign tourists, cannot be evaluated positively compared to those of the past. These results suggested a few local governmental policies to activate tourism in the regions.
Studies on Revitalization Schemes for Fishery Villages Based on Questionnaire Survey
Moon, Serng-Bae ;
Journal of Navigation and Port Research, volume 33, issue 10, 2009, Pages 771~776
DOI : 10.5394/KINPR.2009.33.10.771
The Ministry for Food, Agriculture, Forestry and Fisheries has been designating as Fishery village from 2001 to revitalize economy of fishery villages. But a few of the Fishery villages have been operated as general visiting tourist places or decreased the number of the tourists. In this study, a survey about some status of usage and satisfaction level with Fishery village, the preference for fishery village stay programs was conducted at 21 villages designated in Young-nam area. As a result, three revitalization plans were suggested to improve the fishery village stay program and to promote economic growth of the fishery villages.