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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Navigation and Port Research
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Journal DOI :
Korean Institute of Navigation and Port Research
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Volume & Issues
Volume 31, Issue 9 - Dec 2007
Volume 31, Issue 10 - Dec 2007
Volume 31, Issue 8 - Oct 2007
Volume 31, Issue 7 - Sep 2007
Volume 31, Issue 6 - Aug 2007
Volume 31, Issue 5 - Jun 2007
Volume 31, Issue 4 - Jun 2007
Volume 31, Issue 3 - Apr 2007
Volume 31, Issue 2 - Mar 2007
Volume 31, Issue 1 - Feb 2007
Selecting the target year
Development of Collision Scenario-Based Evaluation System for the Cognitive Performance of Marine Officers
Kim, Hong-Tae ; Barentt, Mike ; Yang, Won-Jae ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 629~635
DOI : 10.5394/KINPR.2007.31.8.629
Reduced crew performance is frequently cited as a major causal factor in maritime accident causation. Although considerable research has been conducted on the hours of work undertaken by seafarers through interviews and the analysis of records, experimental studies to observe the effects of factors such as high workload, shift patterns, stress, sleep deprivation and disturbance on the cognitive performance of mariners have been limited. Other safety-critical transport industries, such as aviation and rail, have developed fatigue management tools to help manage the work patterns of their operators. Such a tool for mariners would assist shipboard crew, marine pilots and shore management in planning and improving work schedules. The overall aim of this paper is to determine a fatigue factor, which can be applied to human performance data, as part of a software program that calculates total cognitive performance. This program enables us to establish the levels of cognitive performance of a group of marine pilots to test a decision-making task based on radar information. This paper addresses one of the factors that may contribute to the determination of various fatigue factors: the effect of different work patterns on the cognitive performance of a marine pilot.
The Study for An Usability Improvement of Conning Display through Information Distribution
Lee, Bong-Wang ; Yang, Young-Hoon ; Kim, Hong-Tae ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 637~643
DOI : 10.5394/KINPR.2007.31.8.637
In many fields, commercial programs or equipments are biting developed and these are getting complicated more and more by adding advantages from existing products. In promoting the usability of these products, design based on the information integration receives attention. However, is information integration always better? In this study, we tried to demonstrate information distribution is more efficient than information integration through conning display design that was propelled by many countries' classification societies. We designed the conning display using many ergonomic methods and conducted its performance experiment. Results of the performance experiment reveal that conning display having two modes (one shows the functions related with ocean and coast voyage and another shows the functions related with docking and leaving port) is more efficient.
A Study on Development of Integrated System of Ship's Information
Jeong, Tae-Gweon ; Park, Soo-Han ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 645~652
DOI : 10.5394/KINPR.2007.31.8.645
As a method to improve the present operational and safe function in navigation this paper developed an efficient and economical integrated system of ship's information. This system is, systematically and comprehensively, to monitor, save, analyse, and display information on navigation and environment around own ship in real time by connecting one user to another through an on-board LAN or data communication via satellite so that many users on board can obtain simultaneously and easily the information in real time not only in the wheelhouse and engine room but also in many robins and ship's offices. And it consists of four(5) components; data distribution program, database of navigational and engine-related information, multi-functional monitoring program, ship management program and other application program.
A Study on the Insured Perils of fishing Vessel Insurance Clauses
Park, Sang-Gap ; Kom, Jong-Won ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 653~662
DOI : 10.5394/KINPR.2007.31.8.653
Fishing vessel insurance of National Federation of Fisheries Cooperatives indemnifies the assured against marine losses by reason of maritime perils, that is to say, perils of the seas, sinking, stranding, collision, extraordinary action of winds waves and fire, damage, salvage. Therefore this insurance is a rational protective measures for preserving fishermen's property by the exposure to maritime perils. But there may be some problems on the perils covered by fishing vessel insurance clauses bemuse these clauses are not clearly and accurately prescribed in part. Especially where the assured may claim payment from fortuitous accidents or casualties of the seas musing the loss, they used to raise a question in argument about the ambiguity of these clauses. So these problems may need to be reformed for the purpose of preventing or decreasing those of the assured, the fishermen. After drawing out some problems on the perils covered by fishing vessel insurance clauses, this thesis will suggest the improving schemes on the perils covered by these clauses.
A Survey of Safety Consciousness relate to Casuality Occurrence of Seafares
Kim, Jae-Ho ; Han, Byung-Jo ; Choi, Jin-Ho ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 663~669
DOI : 10.5394/KINPR.2007.31.8.663
The purpose of this study is to investigate seafarers' attitude to casualty related safety onboard the ship. The subjects were 437 seafares' who took a safety education course in Korea Institute of Maritime and Fisheries Technology. This questionnaire was focused on finding the basic data for prevention of industrial accidents, and getting the public opinions and proposals of seafares'. The results obtained by this study are as follows : The average score of safety level for seafares' were 68.82. Current position, level of education, navigation area, classification of ships, ship size, ship age showed significant difference in statistics(p<0.01). Based on these results, this research pointed out the need to review the training manual, development of educational programs, improvement of facilities to improve safety education of ship, etc.
Development of the EM Wave Absorber for ETC of ITS
Song, Young-Man ; Choi, Chang-Mook ; Lee, Dae-Hee ; Kim, Dong-Il ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 671~674
DOI : 10.5394/KINPR.2007.31.8.671
In this paper, the EM wave absorber was designed and fabricated for ETC system, because ETC system has some problems including signal error and system-to-system interference. We fabricated some samples in different composition ratio of MnZn-ferrite, Carbon and CPE, confirmed that optimum composition ratio of Mn2n-ferrite, Carbon, CPE was 40 : 15 : 45 wt%. Complex relative permittivity and complex relative permeability was calculated by the measured data. And absorption abilities were simulated according to different thickness of the EM wave absorbers using complex relative permittivity and permeability. The EM wave absorber was fabricated based on simulated data Simulated and measured values agree well. As a result, the developed EM wave absorber has a thickness of 3.38 mm and absorption ability over 20 dB at 5.8 GHz.
Structural Response Analysis of a Tension Leg Platform in Multi-directional Irregular Waves
Lee, Soo-Lyong ; Suh, Kyu-Youl ; Lee, Chang-Ho ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 675~681
DOI : 10.5394/KINPR.2007.31.8.675
A numerical procedure is described for estimating the effects of the multi-directional irregular waves on the structural responses of the Tension Leg Platform (TLP). The numerical approach is based on a three dimensional source distribution method for hydrodynamic forces, a three dimensional frame analysis method for structural responses, in which the superstructure of TLP is assumed to be flexible instead of rigid. Hydrodynamic and hydrostatic forces on the submerged surface of a TLP have been accurately calculated by excluding the assumption of the slender body theory. The hydrodynamic interactions among TLP members, such as columns and pontoons, and the structural damping are included in structural analysis. The spectral description used in spectral analysis of directional waves for the linear system of a TLP in the frequency domain is sufficient to completely define the structural responses. This is due to both the wave inputs and responses are stationary Gaussian random process of which the statistical properties in the amplitude domain are well known. The numerical results for the linear motion responses and tension variations in regular waves are compared with the experimental and numerical ones, which are obtained in Yoshida et al.(1983). The results of comparison confirmed the validity of the proposed approach.
Study on the Radiation Forces on a Pontoon Type Floating Structure and Submerged Plate : Hydrodynamic Interaction Effect by Submerged Plate
Lee, Sang-Min ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 683~687
DOI : 10.5394/KINPR.2007.31.8.683
Hydroelastic deformation of pontoon type floating structure in waves is critical in structural design. Therefore, it is necessary to develop additional technology that make to dissipate the wave energy as the submerged horizontal plate. In this study, we investigate the characteristics of hydrodynamic interaction effect by the submerged plate affecting to the radiation forces on a pontoon type floating structure using numerical analysis. We have developed the numerical method based on the composite grid system that consists of moving and fixed grid to compute the radiation forces due to the heaving motion of pontoon type floating structure and submerged plate. The numerical simulations based on the finite difference method are carried out to solve the fully nonlinear free surface involving the breaking waves and compared with the experimental data to confirm the reliability of the numerical method. Then, we discuss the interaction effects on the hydrodynamic forces that could influence on the hydroelastic response of floating structure.
Analysis of a Change of Hydrodynamic Environments due to the Port Developments in the Intertidal Zone
Jung, Jae-Hyun ; Lee, Joong-Woo ; Jeong, Young-Hwan ; Jun, Sung-Hwan ; Kim, Kang-Min ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 689~695
DOI : 10.5394/KINPR.2007.31.8.689
The under developing estuarial port Bupsung is bounded by a river and the sea, and has several well developed tidal lands, where the littoral drift is strong due to the tide and the river discharge. The study area is located at the inner part of a concave bay and has a large tidal range due to the water discharge through the Watan-chun and Junnam-dike. In beginning stage of the ocean physical impact study, the tidal modeling is very important and difficult especially in this area. Moreover, we need a model experiment after the verification of the formulated model based on ocean survey. In this study, we constructed a numerical model to the Bupsung port coastal boundaries, which varies with the past and future development and made simulation with it. The result after development shows that there is a decrease of velocity on flood current and a increase on Ebb current and the minor variation of the tide level, compared with before development.
T-S Fuzzy Modeling for Container Cranes Using a RCGA Technique
Lee, Yun-Hyung ; Yoo, Heui-Han ; Jung, Byung-Gun ; So, Myung-Ok ; Jin, Gang-Gyoo ; Oh, Sea-June ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 697~703
DOI : 10.5394/KINPR.2007.31.8.697
In this paper, we focuses on the development of Takagi-Sugeno (T-S) fuzzy modeling in a nonlinear container crane system. A T-S fuzzy model is characterized by fuzzy "if-then" rules which represent the locally input-output relationship whose consequence part is described by a state space equation as subsystem. The T-S fuzzy model in container cranes first obtains a few number of linear models according to operation conditions and blends these conditions using fuzzy membership functions. Parameters of the membership functions are adjusted by a RCGA to have same dynamic characteristics with nonlinear system of a container crane. Simulations are given to illustrate the performance of T-S fuzzy model.
Models for Determining the Size of Import Container Block in Automated Container Terminals
Kim, Ki-Young ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 705~710
DOI : 10.5394/KINPR.2007.31.8.705
The productivity of automated container terminals is significantly affected by not only the speed related performances of automated transfer cranes(ATCs) but also the sizes of container blocks. In this paper, it is discussed how to determine the size of import container blocks considering both the container handling times of an ATC and their storage space. Firstly, evaluation models are suggested for the container handling times of an ATC in a typical import container blocks. Secondly, three mathematical formulations are suggested to determine the size of import container blocks. Numerical experiments for the suggested models to determine the size of import container block are provided.
Vehicle Loading Model Considering Routing Sequence in Shipbuilding Material
Lee, Jong-Ho ; Shin, Jae-Young ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 711~716
DOI : 10.5394/KINPR.2007.31.8.711
When the freight is loaded into a container loading rate must be considered. There are many studies on loading more freights into limited space. But the problem, which is needed to consider the routing sequence is different. A large size of freights, such as shipbuilding materials, am be rehandled or cannot be possible to unload. In this paper I tried to find the solution for the problem consider routing sequence, whereupon I present the container loading model which consider the routing sequence and loading rate and its solution.
Study on Construction of Simulation Model based on Analysis of Container Handling Database - A case of HICCT in Japan -
Kim, Hwa-Young ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 717~723
DOI : 10.5394/KINPR.2007.31.8.717
In recent years, the transportation sector has been undergoing very rapid and multifarious changes due to the M&A, alliances between shipping companies, introduction of larger container ship as it cost reduction measure and the application of integrated logistics to satisfy the needs of customers. Therefore, container terminal is required adequate terminal facilities, sufficient channel depth, efficient handling and low cost of port fees and dues. The purpose of this paper is for functional assessment of efficient container terminal. Firstly, the container operating process information about yard equipment and chassis is extracted through the analysis of practical daily work report of container terminal. Also, the formulae of skill factor and troubles of operator on transfer crane are defined. Lastly, container handling simulation model which consideration of skill factor and trouble of operator is proposed by Petri network model.
An Analysis on an Action about Port Choice of Shipper using Fuzzy-Neural Network
Jang, Woon-Jae ; Keum, Jong-Soo ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 725~731
DOI : 10.5394/KINPR.2007.31.8.725
This paper aims to analyze an action about a port choice of shipper between two ports. For this propose, this paper analyzed a port choice action for Kwangyang and Busan port using a fuzzy logic and neural network. Also, this paper compared classification performance of fuzzy-neural network to Logit model, and analyzed a port choice action into change Para-meta such as freight volumes and service standard.
A Study to Enhance Competitive Advantage on Sea & Air Intermodal Transport System of Incheon
Chung, Tae-Won ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 733~739
DOI : 10.5394/KINPR.2007.31.8.733
Demand for Sea & Air intermodal transport has increased between north-China costal cities and Incheon since China's international airline network was not established completely. It will be big opportunity for Incheon to be logistics hub of Sea & Air intermodal transport in the north-east Asia, musing large sea-air cargoes to be transferred at the port of Incheon. Therefore, this study aims to propose competitive strategy on Sea & Air intermodal transport system of Incheon. In this analysis results, this paper shows that sea & air cargoes rather from china to U.S. than from China to Europe is very significant, considering geographically for Incheon and is also devote to not only providing high quality services but also activating RFS(Road Feeder Service) system, enlarging toward Shanghai, Weihai, and Yantai.
An Empirical Study on the Impacts of Electronic Information Sharing on Performance between Shipping Company and Container Terminal
Choi, Jong-Ick ; Chang, Myung-Hee ;
Journal of Navigation and Port Research, volume 31, issue 8, 2007, Pages 741~750
DOI : 10.5394/KINPR.2007.31.8.741
The purposes of the study are as follows; First, to find out valid variables from preceding studies which expedite and revitalize the electronic information sharing between shipping company and container terminal and (to) verify the effect empirically. Second, to examine the impacts of electronic information sharing between shipping company and container terminal on performance by empirical research. The results are as follows; First, the degree of support by the CEO, the stage of information technology infrastructure, committment and dependence were proved as valid factors affecting the electronic information sharing between shipping company and container terminal. Second, it was proved that the electronic information sharing between shipping company and container terminal has influenced on the performance.