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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 27, Issue 6 - Dec 2003
Volume 27, Issue 5 - Dec 2003
Volume 27, Issue 4 - Sep 2003
Volume 27, Issue 3 - Aug 2003
Volume 27, Issue 2 - Jun 2003
Volume 27, Issue 1 - Mar 2003
Selecting the target year
A New Approach to the Evaluation of Collision Risk using Sech Function
Jeong, Tae-Gweon ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 103~109
DOI : 10.5394/KINPR.2003.27.2.103
Evaluating the risk of collision quantitatively plays a key role in developing the expert system of navigation and collision avoidance. This study analysed the existing methods of appraising the collision risk, examined the problem that are intrinsic to them, and developed a new approach to its evaluation by using the sech function as an alternative to them. This paper applied the new method in appraising the collision risk and suggested how to decide the safe range of ownship`s action
Ocean Wave Forecasting and Hindercasting Method to Support for Navigational Safety of Ship
Shin, Seung-Ho ; Hashimoto, Noriaki ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 111~119
DOI : 10.5394/KINPR.2003.27.2.111
In order to improve navigational safety of ships, an ocean wave prediction model of high precision within a short time, dealing with multi-directional random waves from the information of the sea surface winds encountered at the planned ship`s course, was introduced for construction of ocean wave forecasting system on the ship. In this paper, we investigated a sea disaster occurred by a stormy weather in the past. We analyzed the sea surface wind first and then carried out ocean wave hindercasting simulations according to the routes the sunken vessel. From the result of this study, we concluded that the sea disaster was caused by rapidly developed iou pressure system Okhotsk Sea and the predicted values by the third generation wave prediction model(WAM) was agreed well with the observed significant wave height, wave period, and directional wave spectrum. It gives a good applicability for construction of a practical on-board calculation system.
A Study on the Optimal Allocation Model of the Korean Maritime SAR Fleet
Chang, Woon-Jae ; Keum, Jong-Soo ; Shin, Cheol-Ho ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 121~127
DOI : 10.5394/KINPR.2003.27.2.121
The Korea Maritime Police Agency(KMPA) is the national maritime Search and Rescuee (SAR) authority with the responsibility to promote an efficient organization of SAR services and to coordinate the conduct of SAR operations within the Korean Search and Rescue Region(SRR). The maritime SAR operations shall provide an adequate and effective search and rescue services to minimize the loss by rendering aid to persons in distress and property in the marine environment. The essence of a successful search and rescue operation is the speed with which it is planned and carried out because survivors who need assistance and whose chances of survival diminish rapidly with time. This paper aims to propose an optimal allocation model of maritime SAR fleet in view of minimizing the search and rescue time. When maritime accidents occur, rescue units have to reach to the distress scene within the specified time. For this, SAR units must be redeployed to an advanced base so that Rescue Units(RU) can reach to the scene of distress in the shortest possible time. The Korean maritime SRR is divided into 180 sub-areas in consideration of an operational and technical ability of SAR units. The suggested model is verified through an empirical application to the Korean maritime SRR. And also the Rescue Vessels(RV) required is estimated for each Rescue Co-ordination Center(RCC).
A Comparative Study on the Investigation and Inquiry System of Marine Accidents
Jong, Jae-Yong ; Na, Song-Jin ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 129~135
DOI : 10.5394/KINPR.2003.27.2.129
This study describes and discusses the marine accidents investigation & inquiry system of Korea, U.K., U.S.A., the Netherlands and Japan. As the results of the comparison of them, the following recommendations are made with respect to improve the system in Korea. (1) The Agency should be independent from the central Government with respect to the budged, personnel management and a agency building. (2) The inspection function and judgment function should be divided into separate Agency. (3) The Agency should has a recommendation right to Government agency according to the results of investigation. (4) The composition of inspectors & judges must be diversified including navigation, marine engineering and naval architecture background. (5) The Agency should have co-operative system with the Marine Police Agency. (6) International affairs division should be included in the Agency to promote international relations.
Structure Analysis of Ship′s Collision Causes using Fuzzy Structural Modeling
Yang, Won-Jae ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 137~143
DOI : 10.5394/KINPR.2003.27.2.137
The prevention of marine accidents has been a important topic in marine society for long time, and various safety policies and countermeasures have been developed and applied to prevent those accidents. In spite of these efforts, however, significant marine accidents have taken place intermittently. Ship is being operated under a highly dynamic environments, and many factors are related with ship`s collision, whose factors are interacting. So, the analysis on ship`s collision causes are very important to prepare countermeasures which will ensure the safe navigation. This study analysed the ship`s collision data over the past 10 years(1991-2000), which is compiled by Korea Marine Accidents Inquiry Agency. The analysis confirmed that‘ship`s collision’is occurred most frequently and the cause is closely related with human factor. The main purpose of this study is to analyse human factor. For this, the structure of human factor is analysed by the questionnaire methodology. Marine experts were surveyed based on major elements that were extracted from the human factor affecting to ship`s collision. FSM has been widely adopted in modeling a dynamic system which is composed of human factors. Then, the structure analysis on the causes of ship`s collision using FSM are performed. This structure model could be used in understanding and verifying the procedure of real ship`s collision. Furthermore it could be used as the model to prevent ship`s collision and reduce marine accidents.
Reality Enhancement Method of Virtual Reality Based Simulator by Mutual Synergy Effect between Stereoscopic Image and Three-Dimensional Sound
Yim, Jeong-Bin ; Kim, Hyeon-Ra ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 145~153
DOI : 10.5394/KINPR.2003.27.2.145
The presence-feeling enhancement method of a Virtual Reality (VR) simulator is proposed in this paper. The method is to increase realistic human feeling by mutual synergy effect between stereoscopic image and three-dimensional (3D) sound. In order to test the influence of mutual synergy effect, subject assessment with five university students is carried out using VR ship simulator having PC monitor and LCD shutter glasses. It I found that the averaged scale value of image naturalness is increased by 0.5 from
Study on the Selection of Transport Route for Import-export Container Cargo based on the Environmental Cost
Kim, Sang-Hyun ; Koh, Chang-Doo ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 155~162
DOI : 10.5394/KINPR.2003.27.2.155
In this paper, we investigate the selection of transport route for import-export container cargo based on the sacrifice model and environmental cost of transport route. At first, the sacrifice model, environmental cost of transport, the volumes and the transport share of import-export container cargo are investigated briefly. And next, the transport time and cost, the environmental cost which is caused by cargo transport are investigated for the transport of import-export container cargo from Busan Port to Seoul. And also we calculate the sacrifice of each route by using the sacrifice model including the environmental cost. Finally we decide the transport route of import-export container cargo by using the sacrifice of each transport route. From the research results, we confirm that the road transport share decreases and the coastal transport share increases when the environmental coast of transport is considered.
An Empirical Study on the Activation Approach for the Competitive Power of Korean Shipping Company in the Korea-China Liner Routes
Lee, Yong-Ho ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 163~170
DOI : 10.5394/KINPR.2003.27.2.163
This empirical study takes the activation approach for the competitive power of Korean shipping companies in the Korea-China liner routes. Data for this study were collected from Korea/ China/ 3rd flag shipping companies through the 500 questionnaires. The data of 250 respondents were analyzed statistically to verify the hypotheses and to induce Regression Equation which could predicts the influencing level of the determinants to competitive advantage for Korean shipping companies on Korea-China Liner Shipping Routes. Factor Analysis/ Cronbach`s Alpha/ Principal Analysis/ Multiple Regression Analysis were used in order to test the hypotheses for the empirical study.
A Study on the Effectiveness of Hub Port Development Strategy
Han, Chul-Hwan ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 171~178
DOI : 10.5394/KINPR.2003.27.2.171
Lately most Asian countries have tried to develop their ports into a hub port in their region. However, only a few studies examined the theoretical rationale for hub port strategy. Thus, this paper aim to identify the effectiveness of hub port development strategy in global and regional perspectives, respectively. For this aim, the paper conducts regression analysis on the relationship between port size and growth ad calculates the Hirshman-Herfindahal Index on Asian container ports. According to the empirical results, larger ports have grown faster than smaller ports in the world container ports und European/North American ports. However, in the case of the Asian container ports, the result was opposite. And port concentration in Northeast Asian ports is decreasing gradually during the last two decades. Consequently, the effectiveness of hub port development strategy was not very strong in Northeast Asian region.
An Empirical Study on Berth-Length Calculation of Container Terminal
Song, Yong-Seok ; Nam, Ki-Chan ; Yeon, Jeong-Hum ; Kim, Jeong-Eun ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 179~184
DOI : 10.5394/KINPR.2003.27.2.179
In order to mitigate the overcapacity of Busan port, Busan new port has been developed as transshipment port which is capable of handling 8,000 TEU containership. Generally, design of transshipment port has to reflect the capacity of feeder because both mother vessels and feeders enter the planned port at the same time. However, the existing plan of Busan new port capacity needs to be reexamined since the adopted capacity of each berth at new port, 300,000 TEU, does not seem to be enough to handle both mother vessels and feeders. Therefore, in this study we calculated the required number of berth and berth length by considering cargo handling capacity in terms of the ship size and this study makes some implications in relation with the terminal development plan.
Overall Analysis of Competitiveness of Asian Major Ports Using the Hybrid Mechanism of FCM and AHP
Lee, Hong-Girl ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 185~191
DOI : 10.5394/KINPR.2003.27.2.185
The aim of this research is to overall analyze/classify characteristics of Asian major ports. To achieve this aim, we firstly pointed out critical problems on research methodology and research scope which most of previous research have, from related literature review. In order to overcome those problems, major ports in A냠 were selected by the objective indicators, and both algorithms of AHP(Analytic Hierarchical Process) and FCM(Fuzzy C-Means) that revise weakness in previous clustering method were used. Through these hybrid approach, it were found that only 10 ports of 16 major Asian ports had their own phases in Asian major ports. Those 10 ports were classified into 6 port groups, and also membership degree of each port within the 4 port groups and ranking of each ports seer analyzed. Finally, based on results of these analysis, present status and future direction of Busan port were discussed.
A Study on the Control of the Slew Motion of a Single Point Moored Ship
Lee, Seung-Keon ; Kang, Dong-Hoon ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 193~198
DOI : 10.5394/KINPR.2003.27.2.193
The slew motion of a single point moored ship by the external forces is considered to control itself. The maneuvering equations of motion are derived to express the motion of a ship. The wind forces and the wave forces are considered as the external forces of the single point moored ship in the simulation. The wave forces in the time domain analysis are generated from the frequency transfer function calculated by 3-D source distribution method. The wind forces are used the results from OCIMF(1994). To control the slew motion, the bow thruster and the bridle anchoring with 2nd anchor are used in the numerical simulation.
A Study of Survivability Improvement Method for Naval Ships′Design I - Design Method Considering Box Girder -
Kim, Jae-Hyun ; Park, Myeong-Gyu ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 199~207
DOI : 10.5394/KINPR.2003.27.2.199
In the combat environments at the sea, the naval ships should have enough structural integrity to perform the task under the enemy`s attack and possible damages. Although the naval ships can be damaged from the enemy`s attack, those damages should be minimized and the naval ships must maintain their combat capabilities continuously after recoveries from the damages. Therefore, it is ve교 important for modem naval ships, especially combat naval ships, to ensure the survivability. This paper reviewed the developing procedure for the technique of the naval ships structures and described method, especially box girder system considering survivability. The efficiency of box girder is examined by numerical simulation, and it is found that the establishment of box girder is a good design method to improve the survivability.
A Study on Implementation and Performance Evaluation of Error Amplifier for the Feedforward Linear Power Amplifier
Jeon, Joong-Sung ; Cho, Hee-Jea ; Kim, Seon-Keun ; Kim, Ki-Moon ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 209~215
DOI : 10.5394/KINPR.2003.27.2.209
In this paper. We tested and fabricated the error amplifier for the 15 Watt linear power amplifier for the IMT-2000 baseband station. The error amplifier was comprised of subtractor for detecting intermodulation distortion, variable attenuator for control amplitude, variable phase shifter for control phase, low power amplifier and high power amplifier. This component was designed on the RO4350 substrate and integrated the aluminum case with active biasing circuit. For suppression of spurious, the through capacitance was used. The characteristics of error amplifier measured up to 45 dB gain,
0.66 dB gain flatness and -15 dB input return loss. Results of application to the 15 Watt feedforward Linear Power Amplifier, the error amplifier improved with 27 dB cancellation from 34 dBc to 61 dBc IM
A Fully-integrated Ku/K Broadband Amplifier MMIC Employing a Novel Chip Size Package
YUN, Young ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 217~221
DOI : 10.5394/KINPR.2003.27.2.217
In this work, we used a novel RF-CSP to develop a broadband amplifier MMIC, including all the matching and biasing components, for Ku and K band applications. By utilizing an ACF for the RF-CSP, the fabrication process for the packaged amplifier MMIC could be simplified and made cost effective. STO (SrTiO
) capacitors were employed to integrate the DC biasing components on the MMIC. A pre-matching technique was used for the gate input and drain output of the FETs to achieve a broadband design for the amplifier MMIC. The amplifier CSP MMIC exhibited good RF performance (Gain of 12.5
1.5 dB, return loss less than -6 dB, PldB of 18.5
1.5 dBm) over a wide frequency range. This work is the first report of a fully integrated CSP amplifier MMIC successfully operating in the Ku/K band.
AGV System Operating Scheme based on Grid Level Control in Automated Terminal
Lee, Yong-Hwan ; Park, Eun-Kyung ; Park, Tae-Jin ; Ryu, Kwang-Ryel ; Kim, Kap-Hwan ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 223~231
DOI : 10.5394/KINPR.2003.27.2.223
In this paper, we present a scheme for developing a simulator which verify the AGV system operation in automated container terminal. First of all, we propose a guide path in automated terminal considering AGV productivity and present a traffic control scheme in a such guide path. Generally, the AGV system can be controlled by zone control scheme, but there are no flexibility and use simple operation. In this paper, we propose and use grid based control scheme to improve the flexibility of the AGV movement. Lastly, we construct the simulation environment which can do similar to that of real task and ease the modification and improvement of the control logics.
A Study on Environmentally Friend Counter Facilities for Improvement of Harbor Water Quality
Kim, Kang-Min ; Kang, Suk-Hyong ; Ryu, Ha-Sang ; Kim, Sang-Hoon ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 233~238
DOI : 10.5394/KINPR.2003.27.2.233
Due to the impermeability of outer wall facilities such as Breakwaters which dissipates the wave energy and keeps harbor tranquility, the enclosed area of harbor becomes partially blocked and the water exchange can be reduced. Recent trends of port development protect water quality and emphasize Water-Front, so the method which enhances the circulation of harbor waters and the dilution of the water pollutants are studied. The best improvement of water quality is a remove of pollutant source on land, but an enclosed port must be enhanced the tidal exchange. For this end, the best improvement may be made a drain-route on the existing outer wall facilities. In this study, the numerical computations were carried out to predict the circulation of harbor waters and the tidal exchange through the drain-rout in the polluted harbor(Samchonpo-guhang) located at the east coast of South Sea. Computational models adopting FDM(Finite Difference Method) were used here and were already verified from the previous studies und ocean survey. As a result of this study, circulation and the tidal exchange at the harbor before and after introduction of drain-route were assessed.
Modelling of Oil Boom Failure using the Fluent
Bae, Suk-Han ; Jung, Yun-Chul ;
Journal of Navigation and Port Research, volume 27, issue 2, 2003, Pages 239~246
DOI : 10.5394/KINPR.2003.27.2.239
When oil is spilled at sea, the oil boom is commonly used to tackle the movement and spreading of oil in an early stage of oil spill combat. But the retaining capability of oil boom is affected by various factors, such as water velocity, viscosity and density of oil, water depth, oil volume and the length of boom draft. In this study, a computer modelling was peformed to investigate how these factors influence the oil retaining process. The Fluent, most popular one of many CFD(computational fluid dynamics) programs is chosen for modelling and modelling results were verified using the empirical data. It is expected that results of this study will be useful data for oil boom designer and oil spill response commander.