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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 30, Issue 9 - Dec 2006
Volume 30, Issue 10 - Dec 2006
Volume 30, Issue 8 - Oct 2006
Volume 30, Issue 7 - Sep 2006
Volume 30, Issue 6 - Aug 2006
Volume 30, Issue 5 - Jun 2006
Volume 30, Issue 4 - Jun 2006
Volume 30, Issue 3 - Apr 2006
Volume 30, Issue 2 - Mar 2006
Volume 30, Issue 1 - Feb 2006
Selecting the target year
A Study on the Ship Collision Avoidance Model considered Speed
Yang, Hyoung-Seon ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 779~785
DOI : 10.5394/KINPR.2006.30.10.779
From a point of view of suggesting the method to avoid ship's collision, the speed of ships has to be considered sufficiently according to encounter angle of ships. But the new safe-guard ring of ship's collision avoidance support model in the close quarters is established assuming that the ratio of own ship' speed to a target ship's speed is less than about 1.7. Therefore in this paper, as doing a study concerned with the establishment of safe-guard ring reflected the encounter angle and the speed of ships, we will propose the new model of ship collision avoidance for safe maneuver of ship's collision avoidance.
Manning Structure and Navigation Skills of the Period of Chosun appeared in POHAE-Rok
Kim, Sung-June ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 787~791
DOI : 10.5394/KINPR.2006.30.10.787
It has not been well known to the publics about the manning structure and navigation skills of the period of Chosun CHOI Bu left several records on the crews and navigation skills in his book PYOHAE-Rok. Though PYOHAE-Rok the record of Drifting across the Sea, written by CHOI Bu in 15th century, has been studied by many scholars from the Korean Sea Literary viewpoints, no one was interested in the above book from a maritime history standpoint until now. In this paper the author tried to find out the manning structure of ship and navigation skills in the period of Chosun Finally the author would like to explain the reasons CHOI's ship could succeeded in reaching mainland CHINA but CHANG Han-cheol's ship was wrecked.
A Study on the Extracting the Core Input and Output Variables in Korean Seaports by DEA and PCA Approach
Park, Ro-Kyung ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 793~800
DOI : 10.5394/KINPR.2006.30.10.793
The purpose of this paper is to show a way for extracting the core input and output variable in Korean seaports by using principal component analysis and DEA(data envelopment analysis). Two inputs(birthing capacity, and cargo handling capacity) and three outputs(export cargo handling amount, import cargo handling amount, and number of ship calls), and three cross sectional data(1995, 2000, and 2004) for 26 Korean seaports are considered for measuring the efficiencies of 21 DEA models. 21 models can be treated as variables and efficiencies as observations for extracting the core inputs and outputs variables by using principal component analysis. An empirical main result indicates that core input variable is cargo handling capacity, and core output is the number of ship calls. The Korean seaport authority can adopt the DEA and principal component analysis for deciding the development and investment to each seaport.
A study on the Alternatives for Acquiring the Competitiveness of the Marine Equipment Industry
Kim, Yun-Hyung ; Lee, Jin-Yeol ; Oh, Jin-Seok ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 801~808
DOI : 10.5394/KINPR.2006.30.10.801
To create the value-added in the field of the shipbuilding, we have to vitalize the marine equipment industry. However the competitiveness is inclined to its outward than inward in the field of the shipbuilding in our country. Especially the field of the marine equipment industry needs to acquire the competitiveness as soon as possible in comparison with an advanced country. Therefore, this paper analyzes the characteristics of the marine equipment, the present situation of the marine equipment industry, the present situation of the demand-supply, the localization of the marine equipment, so that it can raise the competitiveness of the marine equipment industry. Based on this paper, it is the purpose of this paper to derive the alternative for acquiring the competitiveness. This paper is trying to find the way to progress the marine equipment industry and suggest well-founded data for acquiring the competitiveness.
An Analysis of Port Competitiveness by the Region - Based on Port Calling Patterns of the Ocean Container Liners -
Kim, Tae-Won ; Kwak, Kyu-Seok ; Nam, Ki-Chan ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 809~817
DOI : 10.5394/KINPR.2006.30.10.809
Shipping and ports have important roles as the nodes and links in maritime logistics. The environment between shipping and ports is interrelated and has been changing' together. Recently, the changes of shipping and ports are rapidly in progress and it is expected to be developed complementarily. Especially, mega carriers reduce the number of ports of calls because the size of ships is becoming bigger and bigger and the 'hub and spokes' strategy is appeared. Therefore, the position of a hub port by the region has questioned This paper aims to research the competitive ports by the region on the basis of the patterns when mega carriers call at ports. Six regions, Far East, Southeast Asia, Northwest America, Northeast America, West Europe and Mediterranean, are organized for this research. According to the volume of cargoes, the top five ports of each region are analyzed. As a result, the competitive ports by the region are Shanghai, Hong Kong, Los Angeles, New York New Jersey, Rotterdam and Gioia Tauro.
Effect Analysis according to the Reduction of Traffic when General Pier and Jasungdae Pier are Re-developed - Focused on the Social Cost Analysis -
Song, Yong-Seok ; Kang, Dal-Won ; Nam, Ki-Chan ; Hur, Yun-Su ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 819~823
DOI : 10.5394/KINPR.2006.30.10.819
Since the north port in Busan started to operate in general pier (1, 2, central, 3 and 4), the business area had been expanded to Jasungdae, Shinsundae, Gamman zone and so on However, these zones adjoin the Busan city and have caused problems to both logistics and city activities. The operation of Off-Dock Container Yard (ODCY) is a representative example due to the limited sphere of Container Yard in this city. It increases logistics costs and causes serious social problems as a result of increasing traffic in the trunk roads such as Uam and Chungjang roads. This paper aims to analyze the effects of the reduction in traffic of trunk roads in Chungjan, Uam roads and so on, when General Pier and Jasungdae Pier are Re-developed. The effects of the reduction in social cost from traffic congestion are also analyzed. Finally, we predict and evaluate the effects according to the re-development of two piers, north pier and Jasungdae pier.
Safe Navigation Plan for Dredging Operations to build Sunken Tunnel for Access Road between Busan-Geoje
Kim, Jung-Hoon ; Gug, Seung-Gi ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 825~831
DOI : 10.5394/KINPR.2006.30.10.825
This research does by purpose that present safe navigation plan for ships during doing dredging construction with dredger crossing waterway of Gadeok Dredging operations need to build sunken tunnel that cross the bottom of the sea under waterway of Gadeok for access road construction between Busan- Geoje. Accordingly, dredger must cross and dredge waterway of Gadeok fatally. There is possibility of marine accident of collision for latent danger situation of ships to navigate waterway of Gadeok relatively. Therefore, safe navigation plan of ship is groped in reply and its countermeasure is presented. Firstly, navigating traffic in daytime was forecasted less than 20% of its maximum capacity through estimating the traffic volume and traffic congestion The proposal was presented to execute dredging operations in three-step and to establish temporary waterway after reviewing waterway design principles. The role of VTS center was emphasized in the new Busan Port, lastly.
Interaction between Navigation Officer and SCMS for Ship Control and Safe Navigation
Kim, Bi-A ; Lee, Jae-Sik ; Kim, Jong-Do ; Oh, Jin-Seok ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 833~837
DOI : 10.5394/KINPR.2006.30.10.833
Effective interaction between navigation officer and automated navigation-support system is essential for ship-handling and safe navigation In this study, the functions of the SCMS(Ship Control and Management System) which was developed and implemented to support navigation officer's ship control and to guide safe navigation were described in terms of navigation officer's tasks(i.e., watchkeeping, positioning, and maneuvering), and the interactive relationship between navigation office and the system were analyzed in addition, the effectiveness of the system was evaluated in the scope of training efficiency and subjectively rated safety level.
A Study on Pseudolite-augmented Positioning Method for Automatic Docking
Park, Sang-Hyun ; Cho, Deuk-Jae ; Oh, Se-Woong ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 839~845
DOI : 10.5394/KINPR.2006.30.10.839
A laser docking system provides a centimeter-level accuracy distance from jetty mounted laser sensors in order to help a vessel to approach to a pier. It is very accurate & useful, whereas there are too many considerable problems. Laser sensors of the laser docking system need to be correctly positioned and installed on a jetty to allow for full range of vessels to be berthed and to consider loading condition and tidal variations. Above all, the laser docking system is expensive and its service coverage is limited. In order to solve these problems, CDGPS positioning method using GPS satellites has been proposed. This paper presents that, through RHDOP simulation, the previous CDGPS positioning method using only GPS satellites is not able to provide the continuous service with centimeter-level positioning accuracy. And this paper proposes a pseudolite-augmented positioning method for vessel docking in order to solve the problem of the continuous service on the previous CDGPS positioning method. In this paper, pseudolite is used to aid in CDGPS positioning. This paper shows that the proposed method can provides the continuous service through comparison analysis of RHDOP simulation results between the GPS satellite constellation and the pseudolite-augmented GPS satellite constellation. Furthermore, it is shown that the proposed positioning method satisfies the positioning performance required for vessel automatic docking at a test bed designed for performance evaluation.
Design and Fabrication of on Oscillator with Low Phase Noise Characteristic using a Phase Locked Loop
Park, Chang-Hyun ; Kim, Jang-Gu ; Choi, Byung-Ha ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 847~853
DOI : 10.5394/KINPR.2006.30.10.847
In this paper, we designed VCO(voltage controlled oscillator} that is composed of a dielectric resonator and a varactor diode, and the PLDRO(phase locked dielectric resonator oscillator) that is combined with the sampling phase detector and loop filter. The results at 12.05 GHz show the output power is 13.54 dBm frequency tuning range approximately +/- 7.5 MHz, and power variation over the tuning range less than 0.2 dB, respectively. The phase noise which effects on bits error rate in digital communication is obtained with -114.5 dBc/Hz at 100 kHz offset from carrier, and The second harmonic suppression is less than -41.49 dBc. These measured results are found to be more improved than those of VCO without adopting PLL, and the phase noise and power variation performance characteristics show the better performances than those of conventional PLL.
Deadlock-free Routing of an AGV in Accelerated Motion
Choe, Ri ; Park, Tae-Jin ; Ryu, Kwang-Ryel ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 855~860
DOI : 10.5394/KINPR.2006.30.10.855
In the environment where multiple AGVs(Automated Guided Vehicles) operate concurrently in limited space, collisions, deadlocks, and livelocks which have negative effect on the productivity of AGVs occure more frequently. The accelerated motion of an AGV is also one of the factors that make the AGV routing more difficult because the accelerated motion makes it difficult to estimate the vehicle's exact travel time. In this study, we propose methods of avoiding collisions, deadlocks, and livelocks using OAR(Occupancy Area Reservation) table, and selecting best route by estimating the travel time of an AGV in accelerated motion. A set of time-driven simulation works validated the effectiveness of the proposed methods.
Simulation of Flow field and Water exchange Change on the Redevelopment of Busan North Port
Oh, Dong-Hoon ; Lee, Joong-Woo ; Keum, Dong-Ho ; Jun, Sung-Hwan ; Kim, Kang-Min ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 861~867
DOI : 10.5394/KINPR.2006.30.10.861
In connection with redevelopment of Busan North Port, there has been lots of studies and efforts for the development of superannuated North general piers into a center of marine tourism and waterfront for the citizens of Busan. Recently it has moved to the stage of execution, after several trials to find concrete solutions. On the other hand, the change of flow field and tidal exchange cuased by redevelopment is one of the important investigation subjects. This study deals with the change of flow field and water exchange after redevelopment using numerical simulation technique, based on the general data which were collected and analyzed. As a result of simulation, the speed of tidal currents are tended to decrease near the North and inner-port and increase at the main waterway. Furthermore, the tidal exchange had a tendency to be small both before and after redevelopment by about 77% in a quasi steady state, which is about 15 days after.
Study for the Development of an Optimum Hull Form using SQP
Choi, Hee-Jong ; Lee, Gyoung-Woo ; Yun, Soon-Dong ;
Journal of Navigation and Port Research, volume 30, issue 10, 2006, Pages 869~875
DOI : 10.5394/KINPR.2006.30.10.869
This paper presents the method for developing an optimum hull form with minimum wave resistance using SQP(sequential quadratic programming) as an optimization technique. The wave resistance is evaluated by a Rankine source panel method with non-linear free surface conditions and the ITTC 1957 friction line is used to predict the frictional resistance coefficient. The geometry of the hull surface is represented and modified using NURBS(Non-Uniform Rational B-Spline) surface patches. To verity the validity of the developed program the numerical calculations for Wigley hull and Series 60(
) hull have been performed and the results obtained by the numerical calculations have been compared with the original hulls.