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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 17, Issue 4 - Dec 2011
Volume 17, Issue 3 - Sep 2011
Volume 17, Issue 2 - Jun 2011
Volume 17, Issue 1 - Mar 2011
Selecting the target year
Prediction of Suspended Solid Budget in Nakdong River Estuary
Ryu, Sung-Hoon ; Kim, Kyung-Hoi ; Lee, In-Cheol ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 185~189
DOI : 10.7837/kosomes.2011.17.3.185
To predict the deposition characteristic in the Nakdong river estuary, the material budget of Suspended Solid(SS) was investigated with the amount of Nakdong river discharge being set as dry season and flood season. The results of material budged of SS in dry season and flood season were 60,708 kg/day(inflow) and 306,892 kg/day(outflow), respectively.
The Acute Toxicity of Naphthalene on Hematologic Properties in Juvenile Flounder Paralichthys olivaceus
Lee, Kyoung-Seon ; Ryu, Hyang-Mi ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 191~196
DOI : 10.7837/kosomes.2011.17.3.191
Naphthalene was composed of a substantial fraction of polycyclic aromatic ydrocarbons(PAHs) in crude oil and causes acute toxicity. In this study, we examined the toxicity of different kinds concentrations 0, 1000, 1800, 3200, 5600,
of naphthalene to juvenile flounder, Paralichthys olivaceus for 24h to determine 24-median lethal concentration(
) and acute effect on the hematological properties. 24h-
value of this species was
. Hematocrit value significantly increased at 5600 and
naphthalene exposed group by 24h compared to control fish. Plasma. Glucose was significantly higher in the
(P<0.05). Plasma osmolality was significantly higher in the 3200, 5600 and
. Plasma [
] and [
] significantly increased in the 5600 and
, however [
] was not affected by acute naphthalene exposure. The results of this study suggest the acute exposure to naphthalene affects both ionoregulation and osmoregulation in juvenile flounder.
Study on Merging Method of SSTs Using Multi-satellite Data
Oh, Eun-Kyung ; Yang, Chan-Su ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 197~202
DOI : 10.7837/kosomes.2011.17.3.197
This study introduces a technique to merge three different sea surface temperature(SST) data obtained from multi-satellite sensors. NGSST algorithm, the most popular method of related society, estimates a center pixel of target SST using temporal and spatial correlations, excluding SST accuracies according to sensing methods or properties of satellites. We suggest a merging method of SST to consider the accuracy by satellite or sensor with a comparison with NGSST method. The data used for a merged daily SST with spatial resolution of 5 km was applied from three different satellite sensors such as MODIS, AVHRR and AMSR-E from April 2 to 4, 2011 around the southern coast of Korea. Results of the comparisons showed that the new method is higher than the NGSST method and its STDEV represents a comparatively low value. In future we are planning to compare and analyze the datasets during the daytime as well as nighttime over total cycle of the day.
Long-term Variation and Characteristics of Water Quality in the Yeoja Bay of South Sea, Korea
Park, Soung-Yun ; Kim, Sang-Soo ; Kim, Pyoung-Joong ; Cho, Eun-Seob ; Kim, Byong-Man ; Jeon, Sang-Baek ; Jang, Su-Jeng ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 203~218
DOI : 10.7837/kosomes.2011.17.3.203
Long-term trends and distribution patterns of water quality were investigated in the Yeoja Bay of South Sea, Korea from 1976 to 2010. Water samples were collected at 3 stations and physicochemical parameters were analyzed including water temperature, salinity, hydrogen ion concentration (pH), dissolved oxygen (DO), chemical oxygen demand (COD), suspended solids (SS) and nutrients. Spatial distribution patterns of temperature, pH and DO were not clear among stations but the seasonal variations were distinct except ammonium. The trend analysis by principal component analysis (PCA) during 31 years revealed the significant variations in water quality in the study area. Spatial water qualities were discriminated into 2 clusters by PCA; station cluster 1 and 2~3. Annual water qualities were clearly discriminated into 4 clusters by PCA. By this multi-variate analysis, the annual trends were summarized as the followings; water temperature, COD and SS tended to increase from late 1970`s, decreased salinity, and increased phosphate from 1991 to 2001 and increased dissolved inorganic nitrogen. Water quality was showed by the input of fresh water same as those of Kyoungin coastal area, Asan coastal area, Choensoo bay, Gunsan coastal and Mokpo coastal area in the Yeoja Bay.
A Study on Index Number of Nautical Chart of Korea
Kim, Jong-Sung ; Lee, Hyong-Ki ; Park, Young-Soo ; Gang, Jeong-Gu ; Park, Jin-Su ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 219~226
DOI : 10.7837/kosomes.2011.17.3.219
Now Korea Hydrographic and Oceanographic Administration(KHOA) publishes 309 charts of 38 kinds of scale. Korea chart index number system is established with east, south and west sea areas. The chart number has been given irregularly in accordance with publication order so there is no consistence. The present chart index number system can classify sea areas but does not have information of scale, object and location. Therefore this chart`s unsystematic management gives rise to inconvenience to the chart user. So, the standards of chart index number system is urgently needed for the efficient management & use of chart. In this paper, we intend to propose new chart index number system through adjusting area of chart and rearranging scale of charts. As a result, it is necessary to change from 3 digits to 4 digits index number to gain competitiveness & systematic management of Korea nautical charts.
A Study on the Development of Basic Model for Marine Traffic Assessment Considering the Encounter Type Between Vessels
Kim, Jong-Sung ; Park, Young-Soo ; Heo, Tae-Young ; Jeong, Jae-Yong ; Park, Jin-Soo ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 227~233
DOI : 10.7837/kosomes.2011.17.3.227
Korea coastal area is highly potential dangerous zone of marine accident due to frequent ship`s encounters. VTS center can`t identify ship`s information because of beyond VHF range. It is also difficult of us to efficiently manage vessel traffic beyond VTS control area, so that it can`t prevent marine accident. Presently, korean government is conducting maritime traffic safety assessment according to enlargement of harbor & development of new port but do not have the system which provide danger of information depending on maritime traffic environment with real time. So it is necessary to develop evaluation index which can assess sea risk through the evaluation of maritime traffic environment. In this paper, on the basis of vessel navigator`s risk consciousness, we carried out survey & statistical analysis vessel navigator`s subjective risk depending on the LOA, crossing situation(
), overtaking, head-on situation, encountering vessel`s side, within or outside harbor, speed with other vessel(ex. same, fast or slow), speed difference with other vessel and distance with other vessel & propose basic expression to develop maritime traffic safety evaluation model. And by using this model, we can confirm that this proposing expression is suitable for domestic maritime traffic environment.
A Study on the Establishment of Rules of Safe Navigation and Management for Gyeongin Ara Waterway
Yun, Giw-Ho ; Kim, Jin-Kwon ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 235~243
DOI : 10.7837/kosomes.2011.17.3.235
Gyeongin Ara Waterway will be open on Oct., 2011, Which is the first inland artificial waterway constructed in Korea. There have been arguments about the environmental issues and economic effectiveness, however, it`s now time to focus on the safety of navigation at the waterway to protect human life, property and environment. Therefore this paper aims at examining the establishment of the rule of safe navigation and management for the safe and effective management of the waterway and tries to draft the rules based on these examinations. The draft rule consists of 7 chapters, which are general rules, general rules on navigation, specific rules on navigation, general restrictions, emergency response, restrictions on navigation and penalties in consideration of the characteristic of Gyeongin Ara Waterway and regulations on navigation in major canals in the world.
A Study on the Draft Ship Management Industry Act and its Improvement
Jin, Ho-Hyun ; Lee, Yun-Cheol ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 245~255
DOI : 10.7837/kosomes.2011.17.3.245
Korea ship management industry originated from overseas seamen employment business since 1963 in the Republic of Korea. Recently, new trend of shipping business has developed in a separate way with ship`s ownership and management, that is, cargo business which is in charge of shipowner and practical affairs for ship operation which is in charge of specialized ship management company. Ship Management Industry is being focused as a new development engine with the anticipation of continuous development over 10% a year leading a competitiveness and saving cost in the world market. Therefore, "Draft Ship Management Industry Development Act" was suggested by the shipping business group and academic scholars as a result of continuous research for a long time. This was also submitted to the national assembly for adoption as a national law. The purpose of this paper is to make a contribution to the development of Korea ship management industry through the consideration of each article of this draft Act implications and suggestion of legal and institutional improvements. The result of this study will ultimately contribute to the growth of the Korean ship management industry and enhance their business scope internationally. For the above mentioned purpose, I focus on nurturing and supporting Korea ship management industry, and accreditation of superior ship management industry, etc. within the scope of the submitted draft act.
A Study on the Improvement of National Marine Pollution Response Policy based on the Analysis of Gulf of Mexico Oil Spill Incident
Kim, Sang-Woon ; Lim, Chang-Soo ; Lee, Wan-Sub ; Ha, Chang-Woo ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 257~264
DOI : 10.7837/kosomes.2011.17.3.257
On April 20, 2010, semi-submersible offshore drilling unit Deepwater Horizon was exploded and sank, and 4.9 million barrels(about 778 thousand tons) of crude oil was spilled into the Gulf of Mexico. As more than one year has been passed since the incident, a lot of investigation reports and lessons learned have been made public and also a lot more will be released soon. This paper studies the final report of the National Commission on "the BP Deepwater Horizon Oil Spill and Offshore Drilling", which was organized by the executive directive of U.S. President Barack Obama, and the interim report of Joint Investigation team of U.S. Coast Guard and BOEMRE of "Report of Investigation into the Circumstances Surrounding the Explosion, Fire, Sinking and Loss of Eleven Members Aboard the Mobile Offshore Drilling Unit Deepwater Horizon". The review is focused on the response to the oil spill. And the paper suggests how to improve national marine pollution response policy. In the paper, the Korean governments is suggested to reinforce the capability for instructing and supervising the responsible party`s source control measures, to review how to introduce in-situ burning and vessel of opportunity program into our country, and to continue monitoring on the progress of developments of R&D projects related to oil spill response in the U.S..
Implementation of the Marine Fog Alarm Equipment using Photoelectric Element
Kim, Kab-Ki ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 265~268
DOI : 10.7837/kosomes.2011.17.3.265
In this paper, we designed and fabricated that fog alarm equipment detected to crew in maritime fog. Developed fog alarm equipment was combined sensor and a transmitter-receiver module using emitting device unit and receiver photoelectric element infrared LED using only the receive sensitivity was low, miniaturization. Experiment of the fabricated device had a standard that was humidity 70%, the fabricated one generating artificial-fog within visibility 1km. When humidity is over 70%, the fabricated one generates alarming sounds for a warning. When developed device apply to vessel will be able to respond quickly, according to dense fog in the accident.
A Study on the Development of leisure boat`s Hull Stress Monitoring System using AWG
Kang, Nam-Seon ; Kim, Hyen-Woo ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 269~274
DOI : 10.7837/kosomes.2011.17.3.269
The purpose of hull stress monitoring system(HSMS) is to lead hull structure to be safer at lower cost. We proposed a hull stress monitoring system for leisure boats using fiber-optic bragg grating(FBG) strain sensor. Fiber optic sensors are well suited for structure monitoring system, due to their ability to withstand harsh environments, immunity to electromagnetic interference, and reduce cabling installation cost when employing wavelength multiplexing. This paper presents an overview of current research and design of hull stress monitoring system for leisure boats.
Prototype of the Automated Curved Hull Forming System based on Systems Engineering Process
Noh, Jac-Kyou ; Oh, Dae-Kyun ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 275~281
DOI : 10.7837/kosomes.2011.17.3.275
One of the major technology issues in the ship production processes is the curved hull forming process that is a bottle neck and performed by experienced workers. In order to automate the curved hull forming process, there are a lot of attempts to develop the automation system by many shipbuilding companies and academic labs. However they have some problems which put the developed system in the difficulties to be used and maintained in the yard. In this paper, the problems are formed and solved by using tailored Systems Engineering Process which consists of four steps, those are requirement definition, system design, implementation of subsystem and components, and system integration and verification. A prototype for the proposed system development methodology is implemented. From the consideration of the prototype implemented, it is verified that this methodology can be an alternative to solve the problems.
Basic Design of 40ft Class Pleasure Boat based on Digital Mock-up
Oh, Dae-Kyun ; Lee, Kyung-Woo ; Lee, Chang-Woo ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 283~289
DOI : 10.7837/kosomes.2011.17.3.283
As leisure boats become large-scaled and high value-added, their design requirements gradually get more complicated and accordingly their manufacturing processes get more complicated than those of existing ones. Leisure boat builders overseas make efforts to overcome this circumstance by establishing a 3-D model-based design system which is based on the concept of PLM. On the other hand, Korean shipbuilders still remain in the development process of traditional leisure boats which are mainly based on 2-D drawings. There have been some efforts made to have the 3-D model-based design system; however, they belong to a very early stage. This study carried out initial research to apply DMU technology to the development process of leisure boats. It established the design process based on a DMU model and proved its usefulness through a case study on the design of 40-ft class aluminum leisure boats.
The Study for Stress Calculation of Slip Damage between Propeller Boss and Shaft on the Large Vessel
Baik, Shin-Young ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 291~294
DOI : 10.7837/kosomes.2011.17.3.291
The accident of Slip damage which arose between propeller boss and shaft will be a great problem of safety and economical due to the loss of propulsion power. In this study, the cause of slip damage on the large vessel was surveyed by meeting with officers of troubled ship, checking of drawings on the new built and surveyor report of adjuster company. Additionally, the material of propeller had been compression tested for confirming the impact strength. The result of this studies would be promote the design strength for contact force for keyless propeller, and futhermore reduce the accident of propeller slip between propeller boss and shaft.
Investigation for Collapse Mode of Stiffened Curved Plate with Tee Shaped Stiffeners
Oh, Young-Cheol ; Kim, Kyung-Tak ; Ko, Jae-Yong ;
Journal of the Korean Society of Marine Environment & Safety, volume 17, issue 3, 2011, Pages 295~300
DOI : 10.7837/kosomes.2011.17.3.295
Ship are a box-shaped structure. It is used often fore and aft parts, bilge strake, deck with camber of ship structures. When this structure is compared with flat plate structure, it different to behaviour. Generally, if it subjected to axial compressive load, ultimate strength depend on the change of curvature. Also, In this paper, stiffened curved plate with 1/2+1+1/2 bay model subjected to compressive load carried out the elasto-plastic large deflection series analysis. and parameter effect considered slender ratio, web height/thickness as well as change of curvature and investigated collapse mode for analysis model.