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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Navigation and Port Research
Journal Basic Information
Journal DOI :
Korean Institute of Navigation and Port Research
Editor in Chief :
Volume & Issues
Volume 29, Issue 9 - Dec 2005
Volume 29, Issue 10 - Dec 2005
Volume 29, Issue 8 - Oct 2005
Volume 29, Issue 7 - Sep 2005
Volume 29, Issue 6 - Aug 2005
Volume 29, Issue 5 - Jun 2005
Volume 29, Issue 4 - Jun 2005
Volume 29, Issue 3 - Apr 2005
Volume 29, Issue 2 - Mar 2005
Volume 29, Issue 1 - Feb 2005
Selecting the target year
A Study on the Drift Phenomenon of a Ship on the Waterway near the Breakwater of Busan and Gamcheon Port
Lee Yun-Sok ; Kim Chol-Seong ; Kong Gil-Young ; Im Nam-Kyun ; Lee Chung-Ro ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 1~7
DOI : 10.5394/KINPR.2005.29.1.001
In order to secure the traffic safety especially in the entrance waterway of harbour, it is important that the breakwater and the port facilities should be designed properly considering ship-handling difficulty and traffic flow. In this study, the lateral force acting on ship hull under the external force(wind, current, wave) is investigated quantitatively for the container ship approaching to the Busan and Gamcheon breakwater. The relation of ship-handling difficulty to the breakwater and the arrangement of ship's routine are examined based on the lateral force under the external force. Some of reviews to secure traffic safety on the design of breakwater are discussed.
A Study on the Ship Channel Design Method using Variable Bumper Area Model (I)
Jeong Dae-Deug ; Lee Joong-Woo ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 9~15
DOI : 10.5394/KINPR.2005.29.1.009
To design ship channel is one of important factors for planning and developing a port. In most case, the core factors for designing ship channel are the layout and width of channel provided the net underkeel clearance is secured to be safe enough to pass. In this study, Variable Bumper Area(VBA) model is applied to design and assess ship channel. This model reflects ship's particular, ship domain theory, ship speed and mariner's ship handling skill and experience, especially external forces which cause leeway, set and drift and the change of ship maneuvering characteristics. A real time, full mission shiphandling simulator is used to analyze ship dynamic data according to mariner's ship control, external forces, ete. This model defines Domain degree and Domain-index for assessing the efficiency and safety of the channel. The proposed model is applied to Ulsan new port plan which has a channel width of 1.5 times the length of the largest vessel, a radius of 5 times the length of the largest vessel in a curve of 57 degree centerline angle and SBM facility adjacent to the lateral edge of channel. The result of this study shows that the width of the channel and radius of channel curve are suitable for the target ship but the difficulty of ship handling is caused by the large course change and SBM located in the vicinity of channel.
The Interaction Effects Between Two Vessels in the Proximity of Bank Wall in Restricted Waterways
Lee Chun- Ki ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 17~22
DOI : 10.5394/KINPR.2005.29.1.017
The manoeuvring of vessels and hydrodynamic interaction between them and bank wall in restricted waterways have been treated as important factors in channel design and safe piloting in the waterway areas. This paper examines the interaction forces and moments acting on two vessels running closely in the proximity of bank wall. The object of this paper is to propose a guideline of safe velocity of vessels and distance between them for navigating safely in confined sea areas.
Performance Analysis of OFDM-DSRC System Using LMMSE Equalization Technique
Sung Tae-Kyung ; Kim Soon-Young ; Rhee Myung-Soo ; Cho Hyung-Rae ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 23~28
DOI : 10.5394/KINPR.2005.29.1.023
The signal in wireless multi-path channel is affected by fading and ISI because of high data rate transmission, so the signal has the high error rate. The present modulation and demodulation method of DSRC system can not expect sufficient for providing data service over 1 Mbps, so the channel equalization and advanced modulation and demodulation methods are required. OFDM is generally known as an effective technique for high data rate transmission system, since it can prevent ISI by inserting a guard interval. However, a guard interval longer than channel delay spread has to be used in each OFDM symbol period, thus resulting a considerable loss in the efficiency of channel utilization Therefore the equalizer is necessary to cancel ISI to accommodate advanced ITS service with higher bit rate and longer channel delay spread condition In this paper, the channel equalizer for the OFDM -DSRC system was designed and its performance in a multi-path fading environment was evaluated with computer simulation.
A Study on Automatic Control for Collision Avoidance of a Ship under Appearance of Multi-vessels
Yoon Ji-Hyun ; Lee Seung-Keon ; Im Nam-Kyun ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 29~34
DOI : 10.5394/KINPR.2005.29.1.029
A mis-handling of the ship operators, treated as one qf the main causes of a ship accidents, normally has caused a ship to collide with obstacles like a reef, a rock and other ships etc. since their ability has been declining little by little even though the port conditions have been getting worse. The ship needs a highly sophisticated technology as her size and speed increase as the ship have been demanded. For example, Auto Avoidance Control System gradually has been receiving a growing interest to control the entire ship safely. From that purpose, this research has been done. The research was based on the MMG mathematical model, used Surge-Sway-Yaw-Roll motion equation and Fuzzy theory for calculating the collision-risk Also the research successively was done when the ship encountered continual multitude ships.
A Preliminary Study on the Stress Perception and Ways to Cope with Stress for Seafarers
Seo Young-Seung ; Kim Jae-Ho ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 35~42
DOI : 10.5394/KINPR.2005.29.1.035
This study aims at analyzing the extent of seafarers' perception on their stress and ways to cope with the stress and providing fundamental data for establishing on the stress management of seafarers. In this paper 428 seafarers, who were in the fire-fighting and survival technique training course in Korea Institute of Maritime and fisheries Technology, were sampled and asked to fill out two kinds of questionnaire. One is a questionnaire on seafarers' stress perception and the other is that on the measure of their coping with stress. The collected data were analyzed by using descriptive statistics, t-test and ANOVA by SPSS 10.1 package. The results of this study are as follow. 1) There were significant differences of stress perception in navigation area, marital status, amount of smoking, frequency of drinking, exercise, sleep pattern, sleeping hours, leisure time, and job satisfaction 2) There were significant differences of method coping with stress in current position, navigation area, age, ship career, level of education, marital status, yearly income, frequency of drinking, amount of drinking, exercise, sleep pattern, and job satisfaction 3) The relation between stress perception and ways of coping with stress showed that the group with higher stress perception tended to use emotion-focused coping style and desirable thinking.
A Study on the Legal Liabilities and Countermeasures against Piracy
Choi Suk-Yoon ; Lee Yun-Cheol ; Hong Sung-Hwa ; Park Jeong-Ki ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 43~58
DOI : 10.5394/KINPR.2005.29.1.043
Piracy is the enemy of the human race. Pirates commit acts of murder, robbery, plunder or other villainous deeds at sea, cruelly against humanity. The Republic of Korea(ROK), as a big maritime country, is obliged to suppress piracy under international treaties it ratified, including the UN Convention on the Law of the Sea and the two 1988 Conventions against maritime terrorism The Korean government is recently taking a positive attitude towards the regional cooperation which is necessary for the suppression of piracy in the waters of Southeast Asia In spite of the effects of international cooperation to prevent piracy, it is recently on an increasing trend every year. Such circumstances may have a bad effect on the sound development of world economy by means of trade at sea as well as treat to the safety of crews and safe operation of ships. This paper aims to suggest the countermeasures against piracy in terms of criminal law, civil law and international law in order to secure safe operation of vessels at sea.
On the Adjustment of Weight of Multiple Decision Making Group Problems
Yeo Ki-Tae ; Ryu Hyung-Geun ; Lee Hong-Girl ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 59~64
DOI : 10.5394/KINPR.2005.29.1.059
MDMG(Multiple Decision-Making Group) problems comprise those of UDMG(Unit Decision-Making Group) which contradict each other. For the evaluation problem of port competitiveness, it has the complicated evaluation characteristics of multi-strata-complex and multi-attributes. Especially, it becomes typical MDMG problems in the evaluation which a great number of decision makers such as shipping companies, freight forwarders, logistics companies and researchers participate in This evaluation of complex problems needs the compensated process of weight which rationally unites heterogeneous preferences of each of groups. In this respect, the purpose of this study is to remove the uncertainty of the UDMG using the theory of DS (Dempster-Shafer) and present the integrated weight through the level process.
A Study on the Optimal Width of the Main Span In the 2nd Bridge of lncheon (2) Economic Analysis on Port Operation according to Traffic Schemes in the Main Span
Koo Ja-Yun ; Kim Seok- Jae ; Jang Eun- Kyu ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 65~69
DOI : 10.5394/KINPR.2005.29.1.065
A construction project of Incheon 2nd bridge, which is connected between the Incheon Song-Do New Town and the Incheon International Airport in Young-Jong-Do, has been proposed by the private capital in 1999. But the optimal width of the main span has not been decided in spite of the three investigations into the feasibility of ship's safe transit in this planned bridge. In this paper, we study the economic analysis on port operational efficiency according to traffic schemes, one-way or two-way of vessels over 10,000G/T, in the main span of this bridge. In this comparative result, total queueing time due to the one-way in the bridge main span is evaluated 20,362 hours in 2011 and 24,544 hours in 2020. Therefore the demurrage cost and the accumulation cost of freight are evaluated 19.7 billion won in 2011, and 23.3 billion won in 2020, then total accumulated costs during 33 years from 2008 until 2040 are evaluated about 768.9 billion won.
A Study on Consideration Factors of Traffic Safety Assessment on the Bridge Design-I
Park Young-Soo ; Park Jin-Soo ; Ko Jae-Yong ; Jong Je-Yong ; Lee Eun ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 71~75
DOI : 10.5394/KINPR.2005.29.1.071
From the viewpoint of navigation safety, it would be best if it's possible to build a bridge whose main span is wide enough, however, sometimes it may not be possible due to geographical or economic reason To construct the bridge on the shipping route, consideration factors for marine traffic safety must be investigated and examined from the viewpoint of marine traffic engineering. This study aims to secure marine traffic safety and maintain smoothly traffic flow through assessment qf these factors. As the first step, examination factors such as traffic volume, ship size and bridge width were assessed quantitatively using marine traffic flow simulation technique.
The Effect of Cross Beam on the strength and Stiffness of the Frame in Shuttle Car for LMTT
Lim J. H. ; Han G. J. ; Lee K. S. ; Han D. S. ; Shim J. J. ; Lee S. W. ; Jeon Y. H. ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 77~82
DOI : 10.5394/KINPR.2005.29.1.077
According as the quantity of goods transported by ship is increasing, a port environment is rapidly changing To meet this situation successfully, the development of the next generation port loading and unloading system(LMTT) is studied A Frame of shuttle car for LMTT(Linear Motor-based Transfer Technology) consists of three parts which are outer beam, inner beam and cross beam In this study, we carried out the finite element analysis for the effect of cross beam on the strength and stiffness of the frame according to the number of cross beam, loading position of container, the distance ratio of inner beam from center. The result is as follow ; When the load is applied on outer beam and inner beam concurrently and the number of cross beam is 5, that is the optimum condition in frame design.
Sequencing Container Moves for Intra-Block Remarshalling in a Container Terminal Yard
Kang Jaeho ; Oh Myung-Seob ; Ryu Kwang Ryel ; Kim Kap Hwan ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 83~90
DOI : 10.5394/KINPR.2005.29.1.083
Intra-block remarshalling is the task of rearranging into some target bays those containers which are scattered around within the block, so that the containers can be loaded onto the ship efficiently. However, if we rearrange the containers without considering the container loading sequence, excessive rehandling work will be required at the time of loading because the containers to be fetched are often stacked under other containers. Therefore, the remarshalling should be done by moving the relevant containers in an appropriate order. This paper presents an efficient heuristic search technique for finding an appropriate container moving order during remarshalling to avoid rehandling at the time of loading. Simulation experiments have shown that the proposed method can generate rehandling-free solutions in real time.
Design and Implementation of NMEA Multiplexer in the Optimized Queue
Kim Chang-Soo ; Jung Sung-Hun ; Yim Jae-Hong ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 91~96
DOI : 10.5394/KINPR.2005.29.1.091
The National Marine Electronics Association(NMEA) is nonprofit-making cooperation composed with manufacturers, distributors, wholesalers and educational institutions. We use the basic port of equipment in order to process the signal from NMEA signal using equipment. When we don't have enough one, we use the multi-port for processing. However, we need to have module development simulation which could multiplex and provide NMEA related signal that we could solve the problems in multi-port application and exclusive equipment generation for a number of signal. For now, we don't have any case or product using NMEA multiplexer so that we import expensive foreign equipment or embody NMEA signal transmission program like software, using multi-port. These have problems since we have to pay lots ci money and build separate processing part for every application programs. Besides, every equipment generating NMEA signal are from different manufactures and have different platform so that it could cause double waste and loss of recourse. For making up for it, I suggest the NMEA multiplexer embodiment, which could independently move by reliable process and high performance single hardware module, improve the memory efficiency of module by designing the optimized Queue, and keep having reliability for realtime communication among the equipment such as main input sensor equipment Gyrocompass, Echo-sound, and GPS.
An Evaluation of Productivity Improvement for Container Terminal by Introducing Operation System
Choi Yong-Seok ; Ha Tae-Young ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 97~104
DOI : 10.5394/KINPR.2005.29.1.097
The objective of this study is to evaluate the expected effectiveness of new operation system for port container terminals. We assumed that the operation system of container terminal consists of monitoring & control system, operation system, planning system, and information technology, and we selected total 19 technology alternatives. Through the results of questionnaire and interview received from field expert, we established the evaluation model and analyzed the productivity improvement by estimating the weight and the priority of productivity for operation system From the developed model, we provide useful implications to introduce new technologies of operation system for domestic container terminals.
An Analysis on the Efficiency of Container Terminal using Stochastic Frontier Model
Kim Un-Soo ; Kwak Kyu-Seok ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 105~111
DOI : 10.5394/KINPR.2005.29.1.105
Recently, global terminal operotors are struggling to attract more cargoes into their ports through enlarging facilities and trying to be more efficient operotion Many researches on container terminal efficiency have been conducted, but most of the traditional studies are focused on the partial efficiency of the container terminal using quantitative questionnaires and basic statistical data In this paper, the Stochastic Frontier Model of the interaction among the variables was employed to execute numerical analysis on the efficiency of terminal. The objective of this paper is to measure the level of efficiency in the container terminals every year and to assess the influence in container terminal's efficiency on domestic and foreign terminals by changing the terminal scales and the level of input factors.
Field Observation for the effluent of sediment and nutrient on the Coastal Area
Lee Guk-Jin ; Kim In-Soo ; Ikeda Shunsuke ;
Journal of Navigation and Port Research, volume 29, issue 1, 2005, Pages 113~118
DOI : 10.5394/KINPR.2005.29.1.113
We studied field observation and countermeasure about the effluent of sediment and nutrient materials on the Okinawa Ishigaki Coast according rainy season though this observation, we found out the analysis of outflow topography, intensity of rainfall and effects on the tide, the property of effluent materials ete. The sediment and nutrient concentration of the Okinawa Ishigaki coast are different on the regional sites according to vary with time variation of intensity of rainfall and the ebb and flow. We could confirm to vary with utilized waterways land area and distribution of surrounding vegetation.