Go to the main menu
Skip to content
Go to bottom
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 18, Issue 6 - Dec 2012
Volume 18, Issue 5 - Oct 2012
Volume 18, Issue 4 - Aug 2012
Volume 18, Issue 3 - Jun 2012
Volume 18, Issue 2 - Apr 2012
Volume 18, Issue 1 - Feb 2012
Selecting the target year
Biogeochemistry of Metal and Nonmetal Elements in the Surface Sediment of the Gamak Bay
Kim, Pyoung-Joong ; Shon, Sang-Gyu ; Park, Soung-Yun ; Kim, Sang-Soo ; Jang, Su-Jeong ; Jeon, Sang-Baek ; Ju, Jae-Sik ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 67~83
DOI : 10.7837/kosomes.2012.18.2.067
In order to evaluate die geochemical characteristics of sediment in a semi-enclosed bay used as shellfish and fish farming area, the concentrations of metallic(V, Cr, Mn, Fe, Co. Ni, Cu, Zn, Ag, Cd, Hg, Ph, As) and non-metallic(P, Se) elements and uranium were measured in the surface sediment samples collected from 19 stations of Gamak Bay in April 2010. Metal contamination status in the sediments were also evaluated using the sediment quality guidelines(SQGs) proposed by the National Oceanic and Atmospheric Administration(NOAA) and the enrichment factor(EF). The concentrations of elements in sediment were mainly controlled by quartz-dilution effect(V, Cr, Fe, Co and Ni), the dilution effect of organic matter(Cd and U), and metal redistribution by the decomposition of organic matter(Mn, Ag, As, and Se). The concentrations of metals, except As and Ni, in sediments from all sampling stations were lower than ERL values of NOAA. Conclusively, the surface sediment of Gamak Bay was slightly polluted with Ni, Ag, Cd, and Cd but was not polluted with other elements on the basis of EF results. Our results suggest that the surface sediment in Gamak Bay is not polluted by metallic elements.
Distribution of Antifouling Agent Using Headspace Solid Phase Microextraction(HS-SPME) Method in Southwestern Coast of Korea
Han, Sang-Kuk ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 85~93
DOI : 10.7837/kosomes.2012.18.2.085
We study on the distribution characteristics of antifouling agents such as Sea-nine 211, Irgarol 1051, Diuron using HS-SPME method in southwestern coast of Korea. Short half-life of Sea-nine 211 was distributed in very low concentrations and/or below detection limits in all of the sampling points, both water and sediments samples. Irgarol 1051 was detected to have the highest concentration respectively
, 28.50 ng/g-dry wt in the seawater and sediments, and regional distribution characteristics did not appeared. Strong bioaccumulation and long half-life of Diuron was distributed higher concentration than in all sampling point and was analyzed to have the highest concentration(3882.22 ng/g-dry wt) Mo7(Mokpo)'s sediment. Irgarol 1051 and Diuron distributed in the shipbuilding industry and ship marina are located just at the point to found in high concentrations. In addition, the distribution of the antifouling agent materials were lower in concentration than in inner bay to outter bay in sediments. Antifouling agent materials from these results were contaminated high potential from port and shipbuilding industry located in inner bay.
Marine Environmental and Phytoplankton Monitoring in Wando Coastal Waters in August during the Period of 2009-2010
Cho, Eun-Seob ; Youn, Seok-Hyun ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 95~100
DOI : 10.7837/kosomes.2012.18.2.095
This study was determined to analysis marine environmental and phytoplankton monitoring in Wando coastal waters in August during the period of 2009-2010 and provided the basic environmental data against Southwest Sea of Korea. In August, 2009, the distribution of water temperature and salinity showed an unique characteristics for all of stations, which was associated with a long duration of rainfall after July, 2009 and a lack of sunshine. In the lower of August, 2010, the stratification of water temperature and salinity was shown, which was caused by an intensive sunshine after the middle of August, 2010. Gangjin Bay and Gogeundo waters showed a highly different water temperature and transparency. It is thought that two regions have a distinct water mass and characteristics. In dissolved oxygen and oxygen saturation were higher according to higher water depth regardless of stations. In August, 2009, different dominant species occurred that Gangjin Bay showed a higher cell density of diatom, but Gonyaulax polygramma played an important role in dominant species in Gogeundo waters. It is associated with the introduction red tide water of G. polygramma occurring to southern coastal water in August, 2009. In August, 2010, diatom was extremely higher cell density compared with that of dinoflagellate that regarded as adaptive microrganism against higher quantity of suspended solid in Wando waters. Although Wando has a record of Cochlodinium red tide, this species may be difficult to grow and persist. Dominant species, diatom, play an important role in food organism for shellfish and forming a ecological lineage.
The Physico-chemical Characteristics in the Garorim Bay, Korea
Nam, Hyun-Jun ; Heo, Seung ; Park, Seung-Yun ; Hwang, Un-Ki ; Park, Jong-Soo ; Lee, Hae-Kwang ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 101~114
DOI : 10.7837/kosomes.2012.18.2.101
The physico-chemical characteristics including water temperature, salinity, dissolved oxygen(DO), chemical oxygen demand (COD), chlorophyll-a(Chl. a), suspended particulate matter(SPM) and dissolved inorganic nutrients were investigated in the Garolim Bay, Yellow Sea, Korea in 2010 carried out six times per year at 11 fixed stations by Korea Fisheries Research & Development Institute. The water temperature, salinity, COD, dissolved inorganic nutrients, Chl. a and SPM showed significant difference between surface and bottom water but the other parameters didn't. There were not significant difference between stations. The water temperature showed typical change patterns of the temperate seawater. The annual average of salinity showed more than 31 so that there could not have occurred low saline water. The average of DO from June to August showed over than 3mg/L which showed higher than the below standard value of the hypoxic (oxygen-deficient) water. The average of Chl. a varied
at bottom layer in June and
at bottom layer at August. The dissolved inorganic nutrients showed high concentration in February and low concentration in August due to the limitation of the freshwater input in summer and phytoplankton used to the dissolved inorganic nutrients. The ratio of DIN/DIP showed 30.52 at surface and 37.89 at bottom layer in June which was higher than other month. The SPM was 44.15mg/L at bottom layer in February which was the highest value in this study due to the northwest monsoon. Because of the actively water change in the open sea without inflow of freshwater from land in Garolom Bay, there were not occurred low saline water and hypoxic water. thus, this Bay showed good water quality and required to be conserved continuously as important costal area for fisheries.
A Characteristics of Biological Resources of Portunus trituberculatus (Miers, 1876) around the Chilsan Inland Younggwang, Korea
An, Yun-Keun ; Choi, Sung-Min ; Choi, Sang-Duk ; Yoon, Ho-Seop ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 115~122
DOI : 10.7837/kosomes.2012.18.2.115
Frequency distribution of carapace width, relative growth, sex ratio and fecundity of blue crab Portunus trituberculatus in Younggwang adjacent water were investigated. A total number of individuals collected for this study were 658(Males : 305 and females : 353). Water temperature and salinity of the study areas varied from 5.9 to
and 28.1 to 31.6 psu, respectively. The carapace length-width and carapace width-weight relationship was calculated and the equations obtained are; For males; CL = 1.3652CW + 22.495(
=0.749), For females; CL = 1.3073 CW + 25.684(
=0.801). The sex ratios(Males : females) for blue crab were 0.86 : 1. The value of correlations coefficient between total weight and fecundity of the blue crabs was higher that of between carapace width and fecundity.
A Study on the Management of Foreign Crew in Domestic Merchant Vessel
Kim, Young-Mo ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 123~129
DOI : 10.7837/kosomes.2012.18.2.123
Cabotage means transportation of cargoes or passengers between two points within same country by vessel or aircraft which registered to foreign country. Cabotage regulation has justified by the protectionism in economic aspect and by national security in the defence of a country, thus most world's major countries including United States of America, Japan and European Union(outside EU) are executing cabotage. Even though Korean's controlled fleet ranked to 5th in the world, shortage and ageing of Korean domestic seafarers came to the restricted factor in the Korean domestic shipping. Resultingly Korean government permitted 530 Myanmarese and Indonesian seafarers to come on board in domestic vessel. In regarding to the Korean law, there are no direct relationship between boarding foreign crew in domestic vessel. However the baxic concept of cabotage will be spoiled by boarding foreign crew under the regulation of cabotage, so special treatment should be needed to cover the problems in coastal shipping arose form them. To minimize the problems derived from foreign crew, following actions are recommended; first, management skills of foreign crew are needed to overcome differences of communication and culture; second foreign crew supporting center should be established to counsel their difficulties; third, high level of manning companies should be promoted; forth, stabilized crew supply should be guaranteed by improving employment condition; finally, memorandum of understanding should be concluded between two countries to prevent seceders.
A Study on the Improvement of Legal System for the Revitalization of Korea's Marine Tourism
Park, Su-Jin ; Hong, Jang-Won ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 131~138
DOI : 10.7837/kosomes.2012.18.2.131
The tourism industry is considered as the world largest industry and it is assessed as the most effective way to create employment. In particular, the marine tourism industry such as marine leisure sports, cruise can create high added value so that its significance has been more emphasized. Korea has natural tourist attractions such as more than 3,000 islands, about 12,000km lengths coastline, wide wetlands and beautiful seascape. In addition, the establishment of the five-day workweek and the development of means of transportation make the policy demand of the public for marine tourism increase continuously. However, Korea currently lacks policy and system for revitalizing marine tourism industry as the new growth engine and has not made good use of its retained tourist resource. Accordingly, this study explores the current situation and challenges of Korean marine tourism industry and further analyses the limits of the national legal systems for marine tourism. Lastly, it suggests policy recommendation for promoting marine tourism industry.
Numerical Study on Soot Formation in Opposed-flow Nonpremixed Flame by Mixing Toluene
Choi, Jae-Hyuk ; Yoon, Seok-Hun ; Yoon, Doo-Ho ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 139~144
DOI : 10.7837/kosomes.2012.18.2.139
A numerical simulation has been performed to investigate effects of toluene mixing on soot formation in pure ethylene opposed-flow nonpremixed flame. Mixture ratios of toluene were 3%, 5%, 10%, and 20%. Senkin code for 0-D simulation and oppdif code for 1-D simulation based on CHEMKIN III were utilized. 0-D results by senkin showed that concentrations of methyl radicals and benzene were increased with increasing toluene mixture ratio. This implied that the mixing of toluene in pure ethylene diffusion flame produces more PAHs and soot than those of pure ethylene flame. 1-D result of 10 % toluene reaction by oppdif code showed that production rate for H radical was a crucial factor for benzene formation. These results imply that methyl radical, benzene and H radical play a important role on soot formation in diffusion flames.
A Study on the Performance of an 100 kW Class Tidal Current Turbine
Kim, Bu-Gi ; Yang, Chang-Jo ; Choi, Min-Seon ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 145~152
DOI : 10.7837/kosomes.2012.18.2.145
As the problems of global warming are brought up recently, many skillful solutions for developing new renewable energy are suggested. One of the most remarkable things is ocean energy. Korea has abundant ocean energy resources owing to geographical characteristics surrounded by sea on three sides, thus the technology of commercialization about tidal current power, wave power is demanded. Especially, Tidal energy conversion system is a means of maintaining environment naturally. Tidal current generation is a form to produce electricity by installing rotors, generators to convert a horizontal flow generated by tidal current into rotating movement. According to rotor direction, a tidal current turbine is largely distinguished between horizontal and vertical axis shape. Power capacity depends on the section size crossing a rotor and tidal current speed. We therefore investigated three dimensional flow analysis and performance evaluation using commercial ANSYS-CFX code for an 100 kW class horizontal axis turbine for low water level. Then We also studied three dimensional flow characteristics of a rotating rotor and blade surface streamlines around a rotor. As a result, We found that torque increased with TSR, the maximum torque occurred at TSR 3.77 and torque decreased even though TSR increased. Moreover we could get power coefficient 0.38 at designed flow velocity.
Longitudinal Motion Analysis in Multi-Directional Irregular Waves for a Training Ship using Commercial Code
Han, Seung-Jae ; Kim, In-Cheol ; Oh, Dea-Kyun ; Lee, Gyoung-Woo ; Gim, Ok-Sok ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 153~159
DOI : 10.7837/kosomes.2012.18.2.153
This study gives the vertical motion analysis in multi-directional irregular waves using a commercial code(MAXSURF v.16) based on linear strip theory for a training ship. To verify the commercial code prior to the analysis, we guarantees the reliability of this paper's results using the commercial code by comparing with the results(Flokstra, 1974) of same hull and experimental conditions on a Panamax container. The analysis conditions are Beaufort wind scale No. 5(
) based on ITTC wave spectrum, encounter angle Head & bow seas(
) and Froude number Fn=0.257. Finally, we calculates heave RAO, pitch RAO and obtains the result of ship's response spectra for heave and pitch motions. In the motion response spectrum under the multi-directional irregular waves, heave motion reacts slightly high in short-crested waves and pitch motion reacts high in long-crested waves.
Over Discharging Protection system of Leak Acid Battery for Automatic Water Sanitizer Device
Bae, Cherl-O ; Park, Young-San ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 161~165
DOI : 10.7837/kosomes.2012.18.2.161
It is one of the most important to protect the battery over charging for stable use and to extend the life of battery which occurs with repeated charging and discharging. Various research have been studied to know the state of health, and in this paper the terminal voltage of battery is measured to calculate the state of charge simply. The circuit used comparator is designed and built not to fall under the specific voltage of battery. The designed circuit board is attached to the automatic water sanitizer device with a solar power system. The system is located in the water tank where there is not water and electric service, and confirmed that the state of working is good.
Features of Foreign Marine Debris on the Dune Beach of U-i Island, Korea
Lee, Jong-Myoung ; Jang, Yong-Chang ; Hong, Sun-Wook ; Choi, Hyun-Woo ;
Journal of the Korean Society of Marine Environment & Safety, volume 18, issue 2, 2012, Pages 167~174
DOI : 10.7837/kosomes.2012.18.2.167
Transport of marine debris between countries is a potential source of diplomatic conflicts. U-i Island in Shinan County, Jeonnam Province has been reported by media as being damaged by marine debris from foreign countries. However, scientific researches on those marine debris have not been published. So, the features of foreign marine debris on Seongchon Beach in U-i Island were surveyed on Feb. 2012. The ratio of marine debris from foreign countries was 34.7% by number of items, 56.3% by weight, and 48.5% by volume in
transacts. Most of them, 98.9% in number, were inferred to be originated from China. The most abundant items were plastic beverage bottles and black floats. The total number of black floats was 539 within the 1,100m beach. Fifteen of them had information on manufactured locations, of which 87.6% were Liaoning Province in northern China. As domestic policy cannot prevent the inflow of the marine debris from foreign countries, countermeasures should be sought out from the international cooperation with the neighboring countries. For the black floats, recycling method should be developed as lots of the same types of black floats are drifted ashore in winter. And, as the U-i Island is a National Park with its valuable natural heritages, methods should be designed to minimize impacts on dune topography and ecology.