Go to the main menu
Skip to content
Go to bottom
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 37, Issue 6 - Dec 2013
Volume 37, Issue 5 - Oct 2013
Volume 37, Issue 4 - Aug 2013
Volume 37, Issue 3 - Jun 2013
Volume 37, Issue 2 - Apr 2013
Volume 37, Issue 1 - Feb 2013
Selecting the target year
A Study on the Status and Improvement of Maritime Training Program for Preventing Marine Accidents
Lee, Yun-Sok ; Park, Jun-Mo ; Lee, Bo-Kyeong ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 123~128
DOI : 10.5394/KINPR.2013.37.2.123
In spite of advanced navigational devices and reinforced mandatory standards of officers' education, the number of ship's accidents are increasing. The accidents caused by minor license officers are more than the number of accidents caused by superior license officers. There are many cases of collisions in the past 5 years released on Marine Accidents Inquiry Agency. Especially, officer's negligence from the consequences of the neglect of any precaution which may be required by the ordinary practice of seamen is the main reason behind ship's collisions. For reducing ship's accidents caused by human error, this paper suggests to develop effective training program using analysis date of domestic and foreign education system as a reference.
An Experimental Study on Freezing Behavior of NaCl and Heavy Metal Aqueous Solution Using Freeze Concentration Method
Kim, Jung-Sik ; Lim, Seung-Taek ; Oh, Cheol ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 129~135
DOI : 10.5394/KINPR.2013.37.2.129
Recently, waste water treatment system is developed in small and middle size to get more economic advantage. Freeze concentration system has high thermodynamic efficiency and low energy consumption, can re-use purified water and cold energy obtained from ice. This study was experimentally performed to investigate pollution containment in frozen layer by cooling wall temperature, air-bubble flow methods, initial ice-lining thickness of frozen layer in NaCl aqueous solution and the representative heavy metals, Pb and Cr aqueous solution. As the result, a decrease in the cooling wall temperature bring a higher growth rate of ice front and the more solute was involved in frozen layer. The method to inject directly air-bubble into ice-liquid interface through ring shape nozzle gave high purity of ice compared to indirect method. Ice lining in 5mm thickness resulted in frozen layer with higher purity than 1mm thickness.
Experimental investigation of dynamic trim control devices in fast speed vessel
Seo, Kwang-Cheol ; Gopakumar, Nithin ; Atlar, Mehmet ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 137~142
DOI : 10.5394/KINPR.2013.37.2.137
The displacement Deep-V catamaran concept was developed in Newcastle University(UNEW) through development of the systematic Deep-V catamaran series. One of the most important Deep-V catamaran launched to date is Newcastle University's own multi-purpose research vessel, The Princess Royal. The vessel was launched in 2011 and enhanced the Deep-V catamaran concept further with the successful adoption of a novel anti-slamming bulbous bow and tunnel stern for improved efficiency. It was however identified that the vessel has substantial amount of dynamic trim that limited the visibility of the captain. The dynamic trim also increased the wave-making resistance thereby preventing the vessel from attaining its maximum speed in certain sea states. This paper therefore presents the application of devices such as Trim Tabs, Interceptors, Transom Wedges and Integrated Transom Wedges-Tabs to control the dynamic trim and improvement of fuel efficiency of the vessel. All of these energy saving devices were fitted into a model for tests in Newcastle University's Towing Tank. Model test verification confirmed that the optimum appendage was the interceptors, they produced a 5% power saving and 1.2 degree trim reduction at 15 knots, and investigations of full scale trials will be scheduled with and without application of device to compare the improvement of performance.
Profile Analysis on Signal Measured Local Ice Load during Icebreaking in Arctic Sea
Jeon, Young-Ju ; Rim, Chae-Whan ; Lee, Tak-Kee ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 143~148
DOI : 10.5394/KINPR.2013.37.2.143
The aim of this study is to investigate the characteristics on the profile of local ice load acting on side shell of port side in bow part due to broken ice during icebreaking of ships in ice covered waters. The first Korean icebreaking research vessel 'ARAON' had a sea ice field trial in the Arctic Sea during early August, 2010, and the signals due to local ice impact measured from several strain gauges installed at bow part were gathered. It is known that these data with structural response characteristics due to local ice impact have some different characteristics with a typical hydraulic impact pressure - time history. In this study, the time history on the measured signals was analyzed and the characteristic values were presented using non-dimensional parameters.
An Experimental Study on the Performance of Liquid Spill Stopper to Prevent Flood through the Hull Punctures
Moon, Jung-Hwan ; Kim, Jin-Kyeong ; Kwon, Ki-Seng ; Jung, Kyung-Tae ; Yun, Jong-Huwi ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 149~154
DOI : 10.5394/KINPR.2013.37.2.149
This paper considers the issue of LSS(Liquid Spill Stopper)'s performance verification testing against external resisting force. The importance of the test is to ascertain the possibility of liquid spill stop quickly and efficiently by LSS. The method adopted in this research is the experimental device for puncture's inflow pressure and test the adhesive (magnetic) force on shell plates during the sailing. The major results of the paper are the followings : (a) The performance of LSS against 40 and 100mm diameter puncture was confirmed under 1.0bar. (b) LSS near bow detached first at 20.2 knots. This indicates that LSS can recover the damaged movability needed to naval warships' operation as well as merchant ships.
Strength Estimation of Joints in Floating Concrete Structures Subjected to Shear
Yang, In-Hwan ; Kim, Kyung-Cheol ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 155~163
DOI : 10.5394/KINPR.2013.37.2.155
This study explores the structural behavior of module joints in floating concrete structures subjected to shear. Crack patterns, shear behavior and shear capacity of shear keys in joints of concrete module were investigated. Test parameters included shear key shape, or inclination of shear keys, confining stress levels and compressive strength of concrete. Test results showed that shear strength of joints increased as shear key inclination increased. Test results also showed that shear strength of concrete module joints increased with the increase of confining stress levels. The equation for predicting shear strength of joints was suggested, which was based on the test results. Shear strength prediction by using the equation suggested in this study showed good agreement with test results.
The Property Evaluation of the Marine Concrete Structure Constructed in the Period of Japanese Occupancy (YoungDo Bridge)
Park, Dong-Cheon ; Ahn, Jae-Cheol ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 165~171
DOI : 10.5394/KINPR.2013.37.2.165
YoungDo bridge is the first suspension bridge in Busan which experienced several times repair and reinforcement after completion in 1934. The bridge is under demolition for extension and restoration work since 2011. The purpose of this research is to establish data base about modern concrete. The mix design of the concrete is like that cement : fine aggregate : coarse aggregate = 1 : 2 : 4 or 1 : 3 : 6 by the parts. The compressive strength is in the ranges from 50 to 55 MPa and the elastic modulus is in the ranges from 25 to 35 GPa. From the fact that the deviation is less than 10 %, considerably high quality control was conducted in those days. The carbonation depth is 5.92 cm at the bridge post and 14.3 cm at the machine room. That is why ocean environment keeps the high humidity. The diffusion coefficient of chloride ion through the pores in concrete is 1.052e-12
from the regression analysis using the experiment data. The water cement ration is estimated at approximately 35 % in case if the concrete using ordinary Portland cement.
Comparison Study on the Residual Excess Pore Water Pressure Observed in seabed
Yang, Soonbo ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 173~179
DOI : 10.5394/KINPR.2013.37.2.173
The interaction among wave, seabed and marine structure is an important issue in coastal engineering as well as geotechnical engineering. Understanding variations of stresses and pore water pressures generated in seabed induced by waves is important for civil engineers who have to design the foundation for various marine structures and verify the instability of seabed. In the matters on seabed instability, particularly, in the case of wave-induced liquefaction of seabed, it is turned out there are two different mechanisms through previous studies. These are caused by the transient or oscillatory nature and the residual or progressive nature of excess pore water pressure generated in seabed, respectively. In this study, it is analyzed dynamic characteristics of soils sampled in seabed around the port of Kochi, Japan, through the dynamic triaxial tests and the residual excess pore water pressure in the seabed induced by seepage force of wave. In addition, the calculated residual excess pore water pressures were compared with the field data observed in the port of Kochi.
Empirical Study on the Determinants of Debt Maturity Structure in the Korean Shipping Industry
Lee, Sung-Yhun ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 181~186
DOI : 10.5394/KINPR.2013.37.2.181
In a corporate financing, the decision of optimal capital structure is becoming more critical issues and still remaining a problem to be solved though many of researcher have studied. Particularly, shipping companies need a huge amount of capital finance for new vessel's capacity and then they are considering what is the best capital structure. In this point of view, this study tries to investigate the determinants of debit maturity structure focused on the Korean shipping industry. As results of panel regression analysis, firm size, liquidity, chance of growth, good cash flow are major determinants of debit expiration structure in the Korean shipping companies.
A Study on Measuring the Efficiency of Korea-China Car Ferry Routes by using Data Envelopment Analysis
Lee, Nam-Yeon ; Pak, Ji-Yeong ; Yeo, Gi-Tae ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 187~193
DOI : 10.5394/KINPR.2013.37.2.187
In this prolonged economic recession, the countries in Northeast Asia play a crucial role in the global market and the relationship between Korea and China gets more attention due to its significant achievement during the past 20 years after the establishment of diplomatic ties in 1992. In this regards, this study presents general overview of Korea-China Car Ferry Route and evaluates the efficiency level of each operating route using DEA model. Incheon-Yingkou, Incheon-Lianyungang, Pyeong Taek-Lianyungang are analyzed as efficent routes, while from the view point of passenger efficiency, 4 routes i.e, Incheon-Dalian, Incheon-Dandong, Pyeong Taek- Weihai, Gunsan-Shidao are also noted as efficient routes. Consequently, other inefficient routes can benchmark these efficient routes by increasing cargo volume and passengers.
Data Envelopment Analysis for Container Terminals Considering an Undesirable Output - Focus on Busan Port & Kwangyang Port
Shin, Chang-Hoon ; Jeong, Dong-Hun ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 195~201
DOI : 10.5394/KINPR.2013.37.2.195
Recently according to increase of enlarged scale ports in conformity with increase in over size vessels and container handling service, pollutants generated from ports are increasing. In advanced countries, reduction in carbon dioxide emission assigned to them has been implemented according to the Climate Change Convention and Kyoto Protocol from 2008 to 2012 in order to lessen carbon dioxide emission. Henceforth increase in discussion on the measure of constructing Green Port and low-carbon port is expected in our nation's field of port as well, it is considered that the effort in reduction with regard to undesirable output which causes environmental problem of analysis target during measuring effectiveness. Therefore, in this study, effectiveness was estimated through directional technology distance function considering undesirable output differently from effectiveness analysis of existing container terminal, and then performed comparative analysis with the result analyzed with BCC output-oriented model. As the result of analysis, in 2007 DMU3 and DMU5, and in 2010 DMU2 and DMU4 appeared to be efficient terminals in BCC output oriented model, and in directional technology distance function model, DMU1, DMU3 in 2007, DMU3, DMU5 in 2008, DMU7 in 2009, and DMU2, DMU5 in 2010 appeared to be efficient terminals.
A Study on the Enhancement of Maritime Education and Training to cope with IMO Member-state Audit Scheme
Lee, Yun-Cheol ; Park, Sung-Ho ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 203~210
DOI : 10.5394/KINPR.2013.37.2.203
In spite of adoption of various IMO Conventions over the past, the reason why large vessel accidents related to human life and marine environment occur is that the IMO Conventions are not effectively implemented due to contravention of the conventions by flag states. In particular, the implementation of the conventions are not well being performed because some flag states having weak genuine link between them and vessels haven't set up proper personal and structural organizations in charge of maritime safety and marine environment protection. From this background, IMO Resolution A.946(23) on the voluntary IMO Member-state Audit Scheme was adopted at the 23rd Assembly in Nov. 2003 and the Scheme is expected to be executed compulsorily in 2015 through the adoption of the IMO Resolution A.1018(26) in Nov. 2009. Accordingly, this study examined outline of the IMO Member-state Audit Scheme and the Code for the Implementation of Mandatory IMO Instruments used for the audit standards of this scheme. In addition, this study reviewed the member-states' obligations and responsibilities according to the compulsory implementation of the member-state audit scheme in 2015. Based on this, this study suggested the enhancement measures for maritime education and training of maritime education institutions of the Republic of Korea to cope positively with compulsory implementation of the IMO Member-state Audit Scheme.
A study on how to improve tourism competitiveness for the activation of cruise tourism industry - Focusing on the influence of attribute satisfaction on overall satisfaction of cruise tourists by countries -
Hong, Jang-Won ; Jeong, Byeong-Ok ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 211~219
DOI : 10.5394/KINPR.2013.37.2.211
The purpose of this study is to find out how to improve tourism competitiveness of cruise harbours in Korea by analyzing tourism satisfaction level of international cruise visitors to Korea, who are increasing rapidly as Northeast Asian cruise tourism market is growing up. In this study we analyzed the factors of effects on tourism satisfaction level by Chinese visitors, Japanese visitors and English speaking visitors respectively based on the results of "International Cruise Visitor Survey 2012". The results of this study show that the individual satisfaction level of port of calling & tour schedule, immigration procedures, transportation, shopping influenced overall tourism satisfaction level by countries. It implied that those attributes should be reflected hereafter when we establish a marketing strategy for each of cruise cities. This study has a great significance in that those results suggest useful information when we make plans not only for activating cruise harbours but also for cruise tour marketing.
Effect of Incident Angle of Wave on Floating Pontoon and Moment Resisting Frame
Lee, Young-Wook ; Kim, Bo-Ram ;
Journal of Navigation and Port Research, volume 37, issue 2, 2013, Pages 221~229
DOI : 10.5394/KINPR.2013.37.2.221
To find the influence of incident angle of wave on the moment of 3 storied steel moment resisting frame which is placed on the concrete rectangular pontoon, the fluid dynamic analysis is carried out, varying the period of wave from 5 to 15 second by 2 seconds. As increasing incident angle of wave to longitudinal axis, the influence of RAO-rolling is increased. The moment of longitudinal frame is increased apparently by the wave pressure when the incident angle is
. And the moment of the frame due to the wave pressure is decreased as the incident angle is increased. But the moment of frame due to acceleration caused from pitching and rolling is increased. It is shown that the increased moment when incident angle is
is much greater than that of incident angle