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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
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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
An Adaptive Autopilot for Course-keeping and Track-keeping Control of Ships using Adaptive Neural Network (Part I: Theoretical Study)
Nguyen Phung-Hung ; Jung Yun-Chul ;
Journal of Navigation and Port Research, volume 29, issue 9, 2005, Pages 771~776
DOI : 10.5394/KINPR.2005.29.9.771
This paper presents a new adaptive autopilot for ships based on the Adaptive Neural Networks. The proposed adaptive autopilot is designed with some modifications and improvements from the previous studies on Adaptive Neural Networks by Adaptive Interaction (ANNAI) theory to perform course-keeping, turning and track-keeping control. A strategy for automatic selection of the neural network controller parameters is introduced to improve the adaptation ability and the robustness of new ANNAI autopilot. In Part II of the paper, to show the effectiveness and feasibility of the proposed ANNAI autopilot, computer simulations of course-keeping and track-keeping tasks with and without the effects of measurement noise and external disturbances will be presented.
The Evaluation of Ship Motions in a Harbor along the Entrance Channel by Field Observation
Cho Ik-Soon ;
Journal of Navigation and Port Research, volume 29, issue 9, 2005, Pages 777~782
DOI : 10.5394/KINPR.2005.29.9.777
Maritime transportation consists of various situations such as navigation in the ocean, ship handling at harbor entrances, cargo handling and mooring in harbors. Generally, ships are built for the purpose of currying people and materials upon the seas. In order to accomplish the mission, a ship must be built to withstand the rigors of heavy weather and waves. In particular, the safety of ship motions at the entering/departing harbor and mooring under the effects of waves is very important for ship operation from the viewpoint of marine engineering. Therefore, safety and efficiency during entrance, departure, and mooring are extremely important aspects in the evaluation of ship operations from viewpoints of ship motions. However, the ship motions near a harbor entrance are not observed or studied as much. In this paper, to evaluate the difficulty of ship operations, field observations were performed using a new observation system with high accuracy in typhoon seasons, and grasp was done concerning about the time series characteristic that ship motions change rapidly within a harbor. Namely, such observations enable the quantitative safety evaluation under the effects of waves during ships entering and departing harbors in heavy weather.
Status and Efficiency of Wastewater Sea Outfalls in Korea
Kwon Seok-Jae ; Seo Il-Won ; Lee Joong-Woo ; Kim Young-Do ;
Journal of Navigation and Port Research, volume 29, issue 9, 2005, Pages 783~788
DOI : 10.5394/KINPR.2005.29.9.783
This study provided the status and efficiency of the domestic wastewater sea outfalls based on the previous numerical and experimental studies for the analysis of the buoyant discharges from Rosette diffuser in shallow water. The VISJET model and the hybrid model proposed by Kim (2002) can be proper models for the domestic sea outfalls. The experimental results show that the merging height for MBR and MIR depends on the riser diameter and spacing between risers, and the bending characteristics of the buoyant discharges in still ambient water have significant impacts on the dilution. The current wastewater outfall systems in Korea are not effective for the environmental aspect due to the low discharge water depth. The strategies to reduce the contamination near the domestic wastewater outfalls were found to require the sufficient discharge water depth, proper diffuser location considering the tidal currents, enough riser diameter, and sufficient spacing between risers.
A Study on the Application of RFID to Container Terminals
Kim Sung-Soo ; Lee Myoun-Soo ; Song Yong-Seok ; Nam Ki-Chan ; Kwak Kyu-Suk ;
Journal of Navigation and Port Research, volume 29, issue 9, 2005, Pages 789~793
DOI : 10.5394/KINPR.2005.29.9.789
The container terminals in Korea usually adopts both the bar code and the image recognition systems at the gate complex to capture necessary information on containers passing through the gate. With the rapid advancement of Information Technology(IT) these systems, however, seem to make the user not satisfied due to the inherent limitations such as the long process time taken, low rate of recognition etc., This paper, therefore, examines the adoption of Radio Frequency Identification (RFID) technology to container terminals, and tried to get some implication for the way to improve the productivity of the terminal. The results imply that some improvement in the gate and storage yard operation is feasible by the benefit of using the information of vehicles and containers collected in advance by RFID technology.
Prospects of the TKR-TSR Market
Yoo Ju-Young ; Nam Ki-Chan ; Son Sung-Il ;
Journal of Navigation and Port Research, volume 29, issue 9, 2005, Pages 795~800
DOI : 10.5394/KINPR.2005.29.9.795
Nowadays, road transportation which has played a key role in the market of both passenger and freight transportation is facing with a serious problem, the traffic congestion causing a delay of transportation. Therefore, railroad transportation is considered as an attractive alternative mode of inland transportation due to its inherent merits in mass transportation such as relatively low cost compared with road transportations, less air pollution and noise than other mode ets. In this paper, therefore, we examine the current situation of railroad transportation markets including TKR(Trans- Korean Railway}, TSR(Trans-Siberian Railway} and prospects for the connection of TKR-TSR. And then we examine the structure of the container transportation market by railroad in Korea with a brief analysis of the traffic volume of TKR-TSR.
Globalization and Consolidation in Maritime Transport and Its Implications for Container Port Business
Ryoo Dong-Keun ;
Journal of Navigation and Port Research, volume 29, issue 9, 2005, Pages 801~806
DOI : 10.5394/KINPR.2005.29.9.801
The world of container shipping and container terminal business is changing and container ports need to know what the changes are in order to plan how to respond. In particular, the container transport industry has noticed two major developments such as globalization and consolidation. The purpose of this paper is to review the current trend towards globalization and consolidation of container liner shipping and container terminal business. It also investigates the impact of these market developments on container ports and presents its implications for port development, management and operation, and port competition policy. According to the discussion of this paper a greater exercise of market power of container terminal operators will have negative impacts on international trade and national economy, especially port users, including container lines, exporters and importers. An empirical evidence on the exercise of market power is required to develop competition rules on market dominance at a national and international level. This paper suggests 'port coopetition' as a solution for smaller and regional container terminal operators to survive in a competitive business environment.
An Empirical Study on the Structural Relationship among Gender Discrimination, Organization Commitment and Organizational Citizenship Behavior in the Korean Shipping Firms
Shin Yong-John ;
Journal of Navigation and Port Research, volume 29, issue 9, 2005, Pages 807~812
DOI : 10.5394/KINPR.2005.29.9.807
The objective of this study is to empirically investigate the effect of gender discrimination to female workers in Korean shipping firms on the their organization commitment and organizational citizenship behavior. In carrying out the objective of this study, two hypotheses about the structural relationship among gender discrimination, organization commitment and organizational citizenship behaviors in the Korean shipping firms are established after reviewing the related studies. Survey questionnaires are distributed and analyzed to test the reliability and validity of the response. Also, a structural equation model is established and the model is analyzed by AMOS. In conclusion, there are a negative effect of gender discrimination on female workers' organizational commitment and a positive effect of their commitment on OCB. Through this paper, the comprehensive understanding of the structural relationship among gender discrimination, organization commitment and organizational citizenship behavior would be promoted.
Gaza Seaport as a Way to Enhance the Palestinian Economic Development
Hassouna Abdallah ; Nam Ki-Chan ;
Journal of Navigation and Port Research, volume 29, issue 9, 2005, Pages 813~819
DOI : 10.5394/KINPR.2005.29.9.813
The purpose of this paper is to present some main economic factors which influence Gaza Seaport. Without direct access to the international market, the Palestinian economy will continue its dependence on Israeli economy mainly in employment, transport facilitation, and international trade. The greatest potential for Palestinian economic growth lies in trade. The port is important for creating new job opportunities, and for enhancing exporting capabilities, which are the most essential elements for development of the Palestinian economy. Israeli policies and procedures incur Palestinian exporters additional transportation costs when delivering their products to Israeli Ports or when transit these products to neighboring countries through Israeli controlled area. The public profit for the port is greater than the private profit. Therefore, constructing the port will have a great effect on the Palestinian economy. There are many challenges facing the port, some of them are the political stability, the economies of scale, and Israeli security measures and procedures.