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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society of Marine Environment & Safety
Journal Basic Information
Journal DOI :
The Korean Society of Marine Environment and safety
Editor in Chief :
Volume & Issues
Volume 12, Issue 4 - Dec 2006
Volume 12, Issue 3 - Sep 2006
Volume 12, Issue 2 - Jun 2006
Volume 12, Issue 1 - Mar 2006
Selecting the target year
Characteristics of Oceanographic Environment in a Sea Area for the Building of Artificial Upwelling Structure
Kim Dong-Sun ; Hwang Suk-Bum ;
Journal of the Korean Society of Marine Environment & Safety, volume 12, issue 1, 2006, Pages 1~8
To investigate the variation of marine environments due to set up of artificial structure, we carried out field observations. High temperature and salinity waters near the south frontal area were distributed clearly in the southeastern part of study area during summer season The variation of current structure was also occurred around study area where artificial structure set up. In 2005 after set up of artificial structure, the nutrient concentration increased greater than that in 2002 before set up artificial structures. To illustrate the characteristics of marine environment due to set up of artificial structure, quantitative analyses on the effect of artificial structure are important.
A Study on the Aging Behavior of Ship Organic Coating by the Flow Induced Shear Stress
Park Hyun ; Park Jin-Hwan ; Ha Hyo-Min ; Chun H.H. ; Lee In-Won ;
Journal of the Korean Society of Marine Environment & Safety, volume 12, issue 1, 2006, Pages 9~14
Analysis has been made of the anti-corrosive property of organic coating under the shear stress of the flow by means of AC impedance method. Marine anti-corrosive painted panels were placed in the water channel with varying flow rate, thereby experiencing varying flow shear stress on the surfaces. The velocities of the salt water were ranged from 1.48 to 5.2 m/s and the coating thickness of from
. For all coating thicknesses investigated, the poorer anti-corrosive property and the lower adhesion strength have been found for the higher shear stress. It has been found that the shear stress accelerates the aging of organic marine coatings.
A Study on Developing Marine Technology(MT) Strategy and Its Implementation Plan
Kang Gil-Mo ; OH Wee-Yeong ; Kwon Moon-Sang ; Park Se-Hun ;
Journal of the Korean Society of Marine Environment & Safety, volume 12, issue 1, 2006, Pages 15~22
Marine Technology is the last hope of mankind for resolving predestined issues of food, resources, and environmental problems. facing and realizing this great challenge, domestic industrial, academic and research institutional experts participated in formulating the Marine Technology development plan, and the national science and technology committee chaired by the president passed this important plan thus setting the foundation for activating and promoting MT development. A project to develop Marine Technology Road Map(MTRM) has been carried out since June of 2005 for effective execution of the plan 1his paper reviewed current issues of MT and contents of MTRM, and proposed alternative measures for MT activation and promotion such as the establishment of special institutes for managing MT research and development and the fund raising for MT budget.
A Relationship between Oceanic Conditions and Meteorological Factors in the Western Sea of Korea in Winter
Go Woo-Jin ; Kim Sang-Woo ; Kim Dong-Sun ;
Journal of the Korean Society of Marine Environment & Safety, volume 12, issue 1, 2006, Pages 23~32
This study was conducted to find out the effects of meterological factors on oceanic conditions when cold and dry continental air mass passes through the western sea of Korea The change of ocean conditions during the winter season were more obvious in coastal area than open sea And sea surface temperature (SST) during February is lower by
than December but in coastal area SST dropped by
. As for the salinity, there was not much difference between areas except southern area of Mokpo. In the coastal regions, air temperature(AT) and SST showed a positive correlation; as the air temperature goes up with the increase of SST and when the former goes down the latter decrease. SST of open sea seems to be changed by latent (Qe) and sensible heat (Qs), when the open sea lose its heat by Qe and Qs then SST goes down And when they get the heat then the SST goes up. 1here was a positive correlation between the AT of the coastal region and sea surface salinity (SSS), when the AT goes up then SSS increase and when the former goes down the latter decrease. Precipitation during the summer seasons (June
September) appeared to the more closely related with salinity of February of the following year than those of October and December.
Estimation of Extreme Tide for Risk Analysis of Marine Salvage in the Namhae (southern sea of Korea)
Lee Moon-Jin ;
Journal of the Korean Society of Marine Environment & Safety, volume 12, issue 1, 2006, Pages 33~38
In marine salvage, extreme tide heights and tidal currents are necessary to anchor an accidental ship. In order to meet this requirement, a simple scheme was developed which yields the spatial informations on the extreme tide from the distribution of approximate highest astronomical tide heights using a relationship between extreme and highest astronomical tides at the standard port. This method is the inference method based on horizontally homogeneity of tide. This scheme was applied to estimate extreme tide heights and tidal currents in the Namhae (southern sea of Korea). The highest astronomical tide heights are computed by amplitude of four major constituents (M2, S2, K1, O1 tide). The estimated extreme tide heights are ranged from 70 to 260 cm for return period 50 years and from 80 to 270cm for return period 100 years, respectively. For return period 100 years, extreme tidal currents show value of 1.55 times as strong as those of normal state.
Alcohol Drinking Status of Officers on a Ship and Drunk-navigation Experiments Using Ship Handling Simulator
Yang Chan-Su ; Yang Young-Hoon ; Kim Hong-Tae ;
Journal of the Korean Society of Marine Environment & Safety, volume 12, issue 1, 2006, Pages 39~45
Based on the previous studies on alcohol effects on human behaviour and performance in transportation system such as air-plane and car driving, the alcohol exposure before and on watch of a ship has a great influence on subsequent behaviour. In this paper, to examine the drinking status of officers on board multiple choice questionnaires are circularized under instruction and surveyed for 118 officers. According to the results of the questionnaire survey on alcohol dependency (Alcoholism) that was invented by WHO, over 27 % of those surveyed represented alcohol abuse symptoms. In addition to that, the existing state and awareness for on-board-drinking was summarized to make a scenario of drink-operation with a ship handling simulator to investigate the effect of alcohol (0.08 g% blood alcohol concentrations) on ship operational performance. A main effect for alcohol was found indicating that ship operational performance was comparatively impaired by this alcohol relative to performance in the non-alcohol condition The results of this research can be applied to minimize marine accidents as basic data.
A Study on Development of Ship Collision Avoidance Support Program
Yang Hyoung-Seon ; Jeong Dae-Deuk ;
Journal of the Korean Society of Marine Environment & Safety, volume 12, issue 1, 2006, Pages 47~52
Recently, ship collision accidents account for
of domestic marine accidents, also have increased continually. In this paper, therefore we propose the development of Ship Collision A voidance Support program for decreasing ship collision accidents. This program has been developed on the basis of CCAS-Model. A CCAS-Model has ship's maneuvering performance and has been studied for the propose of supporting to avoid ship collision in close quarters. Besides. the program will effectively support maneuvering for collision avoidance through display of the feasible area and the method of collision avoidance using own ship's turning characteristic about action of target ship's keeping course and velocity in various encounter.
Evaluation of the Navigational Risk Level in Coastal Waterway using Fuzzy Logic
Keum Jong-Soo ; Jang Woon-Jae ;
Journal of the Korean Society of Marine Environment & Safety, volume 12, issue 1, 2006, Pages 53~59
The prevention of marine accidents has been a major topic in marine society and various policies and countermeasures have been developed, applied to the industries. The coastal VTS and navigational aids are considered a, one of the effective methods to promote marine safety but they need relatively huge amount of budgets to build. Thus prior to establishing these coastal VTS and navigational aids, it should be evaluated the navigational risk level in the coastal waterways from the Environmental Stress. So far as human beings are concerned, there are many types of fuzziness in the evaluation of navigational safety level. In order to reflect these fuzziness on this evaluation, this paper introduces the fuzzy integral suggested by Choquet to represent the fuzziness in the evaluation process. This paper aims to develop the method for this evaluation from the viewpoint of mariner's operational stress using the fuzzy logic and Choquet integral. In this paper, Korean coastal area is divided into 8 sectors and evaluated the priority for the needs of coastal VTS and navigational aids.
A Study on the present status of safety in tug-barge transportation
Im Nam- Kyun ; Park S.H. ; Park G.K. ;
Journal of the Korean Society of Marine Environment & Safety, volume 12, issue 1, 2006, Pages 61~66
It have been known that the probability of occidental happening in towing-barge is higher than that of other merchant vessels. Bemuse the towing-barge is restricted in thier manoeuvring ability due to its towingline. A report from ministry maritime affairs and fisheries said that the rate of collision occident for towing-barge is 40% high than other transport system in sea A number of researches have been carried out to improve the safety policy in the towing-barge sea transportation system by the gorvenment. This study examined the safety status in domestic towing-barge sea transportation system The registration status, safety operational policy and past occidental data were also examined A survey research of experts relating to towing-barge operation also was carried out to fine the detailed of safety status. This study would be applicable to set up safety policy for towing-barge marine transportation system.
Secondary Buckling Behavior Analysis on the Ship's Plate under Combined Load(Lateral Pressure Load and Axial Compressive Load)
Park Joo-Shin ; Ko Jae-Yong ;
Journal of the Korean Society of Marine Environment & Safety, volume 12, issue 1, 2006, Pages 67~74
The ship plating is generally subjected to combined in-plane load and lateral pressure loads. In-plane loads include axial load and edge shear, which are mainly induced by overall hull girder bending and torsion rf the vessel. Lateral pressure is due to water pressure and cargo. These load components are not always applied simultaneously, but more than one can normally exist and interact. Hence, for more rational and safe design rf ship structures, it is of crucial importance to better understand the interaction relationship of the buckling and ultimate strength for ship plating under combined loads. Actual ship plates are subjected to relatively small water pressure except for the impact load due to slamming and panting etc. The present paper describes an accurate and fast procedure for analyzing the elastic-plastic large deflection behavior up to the ultimate limit state of ship plates under combined loads. In this paper, the ultimate strength characteristics of plates under axial compressive loads and lateral pressure loads are investigated secondary buckling behavior through ANSYS elastic-plastic large deflection finite element analysis with varying lateral pressure load level.