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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
On the Development of Typhoon Avoidance Simulation System with the Evaluating Method by Seakeeping Performance of Ship
Song Chae-Uk ; Kong Gil-Young ; Jin Guo-Zhu ;
Journal of Navigation and Port Research, volume 29, issue 4, 2005, Pages 299~304
DOI : 10.5394/KINPR.2005.29.4.299
A simulation system is needed to train students and mariners in order that they can take suitable actions to evade typhoon's strike promptly and sufficiently. In order to make such kind of system, three kinds of models about the typhoon are necessary, typhoon prediction model to generate typhoon's track, wind & wave-field model to make sea conditions around the typhoon and evaluation model of trainee's action whether their actions were suitable or not during simulation. We have developed the prediction and wind & wave-field models of typhoon, but the evaluation model has not been developed yet. In this paper, after making a method for evaluating trainee's actions by seakeeping performance, we propose an typhoon avoidance simulation system for training mariners so that they can promote their abilities to evade the typhoons at sea.
Analysis of Loading/Unloading Activity for Efficient Urban Goods Movement Plan - Focusing on Chiba City -
Park Sang-Chul ; Yun Jeong-Mi ;
Journal of Navigation and Port Research, volume 29, issue 4, 2005, Pages 305~312
DOI : 10.5394/KINPR.2005.29.4.305
Pick-up/delivery of consumer goods to offices, shops, and restaurants in order to support urban lives is one of the most vital activities in a city. With economic growth and technological innovation, a greater variety of goods have come to be supplied, and pick-up/delivery of consumer goods has become more complex. Efficient urban goods movement in Central Business District(CBD} starts with an efficient system for loading/unloading, and pick-up/delivery activities. Loading/unloading activity may be carried out on-street, or on especially designated space inside or outside buildings. Therefore, purpose of this study is to clarity the efficient urban goods movement in CBD(also called the pick-up/delivery activity) from the three different types of loading/unloading facilities. For this purpose, the differences in loading/unloading and truck-trip activity time of each loading/unloading facility was compared by performing the simulation analysis.
Development of Analysis Module for Marine Traffic Information Using PC Camera
Moon Serng-Bae ; Lee Geun-Sil ; Jun Seung-Hwan ;
Journal of Navigation and Port Research, volume 29, issue 4, 2005, Pages 313~318
DOI : 10.5394/KINPR.2005.29.4.313
Usually marine traffic survey has been conducted by some methods like an ocular observation using portable RADAR, a questionnaire, etc. But these should have expended a lot of manpower and expenses. In this paper, we have developed new observation module which could capture the RADAR image using PC camera simply, and allowed as to track targets on the PC monitor directly. And it has been programmed to make a database of RADAR image, target's track and information, and analyze the marine traffic tendency in various ways like vessel number crossed over gate line, vessel's velocity distribution in gate line, traffic density distribution, etc. We have confirmed that this module could observe and analyze the marine traffic efficiently and economically through several on-the-spot experiments.
The Influence of Tsunamis on Moored Ships and Ports
Kubo Masayoshi ; Cho Ik-Soon ; Sakakibara Shigeki ; Kobayashi Eiichi ; Koshimura Syunichi ;
Journal of Navigation and Port Research, volume 29, issue 4, 2005, Pages 319~325
DOI : 10.5394/KINPR.2005.29.4.319
Planning for the construction of ports and harbors usually takes place without the consideration of tsunamis because of their rare occurrence, approximately once every 100 years. However, recent warnings indicate that massive earthquakes could occur in Japan within the next 30 years. Earthquakes may generate large-scale tsunamis. Therefore, any tsunamis in the vicinity of Japan would also be expected to affect eastern Korea. Therefore, with the looming concerns of tsunamis and earthquakes, immediate attention must be given to the planning of ports and harbors. The warnings deserve an immediate response. The threatened regions cover a very large territory, and the degree of severity of the tsunamis is forecasted to be varied. Therefore, any modeling of the potential scenarios will require a broad array of possibilities. The objective of this paper is to consider the potential damage from tsunamis to ports and moored ships in Japan and Korea. In addition, consideration will be given to how the construction plans of ports and harbors should be changed to cope with the threats from earthquakes and tsunamis.
Sea Level Rise at the Southwestern Coast of Korean Peninsula
Oh Nam-Sun ; Kang Ju-Whan ; Moon Seung-Rok ;
Journal of Navigation and Port Research, volume 29, issue 4, 2005, Pages 327~333
DOI : 10.5394/KINPR.2005.29.4.327
Sea level (MSL, MHWL, or MLWL) change has been main concern to scientists and engineers and it can be primarily due to both change of climate and vertical movement of land. This paper reports the intensive analysis of the sea level changes and broad discussion of the future at the southwestern coast of Korean peninsula. Regression analysis was conducted to investigate general tendency and periodicity of the sea levels at the six different study sites such as Gunsan-I(inner port), Gunsan-O(outer port), Mokpo, Yeosu, Heuksan and Jeju and the results were compared with global values. Besides the changes of sea levels due to global warming, the influence of the man-made structure such as seadike and seawall was attempted to quantify using the minimization of the Root Mean Square(RMS) error. The results show that it is a general tendency that the values of mean sea level rise at the southwestern coast of Korean Peninsula, especially at Gunsan-I and Jeju, are somewhat larger compared to global average values. There is also some evidence that tidal amplifications are found just after construction of man-made structure at Gunsan-I and Mokpo. However, both sites show different mechanism in relation to tidal choking, tidal flat and river discharge. The impact due to construction of man-made structure is considerably larger at Mokpo site, while the impacts due to man-made structure and the effect of sea level rise are relatively identical at Gunsan-I site. This study is expected to provide some intuition to future design.
Application of superconductor technology to electromagnetic ship propulsion system
Lee Seung-Hwan ;
Journal of Navigation and Port Research, volume 29, issue 4, 2005, Pages 335~339
DOI : 10.5394/KINPR.2005.29.4.335
The superconducting electromagnetic propulsion system has been proposed as one of new alternative propulsion systems. Especially, the helical-type propulsion system has the greatest merit that is able to use the solenoid-type superconducting magnets with high magnetic fields. In this study, calculations of characteristics of the large scale helical-type thruster are carried out on the basis of our experimental results. As a couple of results of calculations, it is found that the thruster efficiency quickly increases with the length of electrode up to about 5 m and then goes up to about 0.9. The thruster efficiency peaks at a certain point (
) and then falls as length of pitch increases.
A Novel Phase Extraction for the Detection of Time Parameters in Signal
Lee Eun-bang ;
Journal of Navigation and Port Research, volume 29, issue 4, 2005, Pages 341~347
DOI : 10.5394/KINPR.2005.29.4.341
A unique technique to extract the phase in time domain is proposed in order to measure the time parameters such as speed and depth by transmitting sound and electric waves. In the signal analysis processing, the phase of pulse signal can be transformed and digitalized with local data in real time without the effect of direct current bias and Nyquist limits. This method is sensitive to base frequency of pulse signal with high spacial resolution and is effective to compare two signals which have different forms. It is expected that the phase analysis technique will be applied to the measurement of the speed and depth accurately by ultrasonic pulse signal in water.
A Study on Building B2B EC Business Model for The Shipping Industry Using Expert System
Yu Song-Jin ;
Journal of Navigation and Port Research, volume 29, issue 4, 2005, Pages 349~355
DOI : 10.5394/KINPR.2005.29.4.349
The use of the internet to facilitate commerce among companies promises vast benefits. Lots of e-marketplaces are building for several industries such as chemistry, airplane, and automobile industries. This study provides the new B2B EC business model for the shipping industry which concerns relatively massive fixed assets to be fully utilized. To be successful the proposed model gives participants useful information. To do this the expert system is constructed with the hybrid prediction system of neural network (NN) and memory based reasoning (MBR) with self-organizing map (SOM) and knowledge augmentation technique using qualitative reasoning (QR). The expert system supports participants useful information coping with dynamic market environment. with this shipping companies are induced to participate in the proposed e-marketplace and helped for exchanges easily. Also participants would utilize their assets fully through B2B exchanges.