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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 22, Issue 4 - Jun 2016
Volume 22, Issue 3 - May 2016
Volume 22, Issue 2 - Apr 2016
Volume 22, Issue 1 - Feb 2016
Selecting the target year
A Study on the Route Operation & Safety Improvement in Gwangyang Traffic Safety Designated Area Based on ES Model
Kim, Deug-Bong ; Park, Young-Soo ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 153~159
DOI : 10.7837/kosomes.2016.22.2.153
Gwangyang traffic safety designated area is composed of 3 fairways (Deep water fairway, inbound fairway, and outbound fairway). However, inbound vessels can't use this passage because of Samyeo rock and artificial fishing banks in inbound route. The problem with the rocks and artificial fishing banks has been raised by ship navigators and authorities of the port. This research is about the safety evaluation and management plan of the passage, and we conducted maritime traffic simulation using a model based on a ship operator risks. As a result, assuming that future marine traffic volume is the same as the present, and if the ship operators use 3 fairways and not two, it showed risk reduction of 46.4 % (vessels over 50,000 DWT using DW route) and 57.1 % (vessels over 10,000 DWT using DW route). Also, in a traffic volume condition which is the same as the present, to induce vessels over 50,000 DWT to use DW route is effective in mitigating of risks. Meanwhile, in a condition which increased the traffic volume by 150 %, it is more effective to induce vessels to use DW route. This research is the result of analysis using the model based on ship operator risks, and not cost-effectiveness analysis on the removal of Samyeo rock and artifical fishing banks. This research is expected to be used on setting up the sea route and management plan (particularly, restriction on passing DW route).
A Study on the Fatigue Analysis by the Boarding Period on Training Ship
Kim, Seungyeon ; Park, Youjin ; Lee, Yunsok ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 160~166
DOI : 10.7837/kosomes.2016.22.2.160
Crew fatigue has been recognized as a major cause of maritime accidents. Systematic study on crew fatigue has a direct impact on the human factor, but the various measures being taken to prevent human error account for most of the causes of marine accidents situation are still insufficient. In this study, 128 people who have a variety of career and job types boarded the T/S Hanbada were analyzed the changes of fatigue during the 87-days a Maritime Silk Road Sailing Expedition. Crew fatigue was measured by period of time onboard classified as mental, physiological and physical changes through survey responses and individual interviews of nurses. Also, it was identified the fatigue factor through quantitative statistical analysis. As a result of repeated measures analysis of variance for the changes of fatigue in position and gender criteria in accordance with boarded period, the position-specific analysis was that Professor Rating group has appeared to feel more mental and physical fatigue than the student population. Also, the results of fatigability about the sex-specific analysis have been found that women feel more physical fatigue than men.
A Study on the Method of Representing Anchorage Using Occupancy Rate - Simulation Based on Ulsan E Anchorage -
Park, Jun-Mo ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 167~173
DOI : 10.7837/kosomes.2016.22.2.167
This study aims to present methodology for determining the appropriate anchorage area through the simulation reproduces the maritime transport environment, and analysis of the adequacy of anchorage applied at Ulsan E anchorage, suggests the formula of anchorage occupancy rater per hour and necessary anchorage area for this purpose. And configured simulation algorithm and modeling using MATLAB program, and applied Ulsan E anchorage, compared anchorage area with anchorage occupancy rate per hour. As a result, E1 necessary anchorage is 1.41 times, E2 necessary anchorage is 0.90 times and E3 necessary anchorage is 0.96 times compared to total anchorage area. If the result of adequacy analysis of anchor area reflect anchorage design criteria, it is determined to be helpful for the safety of the vessel using the anchorage.
A Study on the Development of the Safe Navigation Route for a Sailing Yacht Focused on Geomundo (Port Hamilton)
Kim, In-Chul ; Oh, Hyeon-Jun ; Kim, Dong-Won ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 174~180
DOI : 10.7837/kosomes.2016.22.2.174
This study suggests a navigation route for maritime tourism cruise sail yacht that sails off from Yeosu, and passes by Baekdo and Geomundo with their live island culture, to Kimnyeonghang of the Jeju islands. Recently, there are increasing number of accidents in proportion to vitalizing marine leisure. That's why it should be examined by region and sea when developing safe sea route considering characteristics of the sailing yacht. Thus, it is needed to introduce marine culture, hold international sailing yacht race and develop multi-functional sea port according to the case of Geomundo. Also additional analysis for navigation ruote patterns and density of the fairway is required. This information will improve safe sailing level of sailing yacht that will help the local tourism industry.
A Study on the Promotion to Volunteering for Maritime and Fisheries Field - Focusing on Policy Implications for College Student Volunteer-
Jeong, Woo-Lee ; Kim, Hyang-Eun ; Kim, Se-Won ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 181~186
DOI : 10.7837/kosomes.2016.22.2.181
This study collected data of college students' volunteering for maritime and fisheries and found that only few subjects participated in it. They took part in control for release of oil, services for sea village and coastal cleansing. Most were satisfied with their volunteering referring contributing to environment protection, self-fulfillment, social interaction, gaining special experiences and assimilation with nature. The subjects were not satisfied with lack of systematic and effective services, monolithic activities, insufficient publicity, deficient rewards and a shortage of self-capacity. Based upon the research findings, implications for college students' volunteering policies were suggested to promote volunteering for maritime and fisheries.
Environmetal Characteristics of Reed Habitat in Nakdong Estuary Saltmarsh
Ryu, Sung-Hoon ; Kim, Kyung-Hoi ; Lee, In-Cheol ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 187~194
DOI : 10.7837/kosomes.2016.22.2.187
In this paper, as a basic research for the restoration and construction of easuary saltmarsh, To observe the habitat environment for reed, we observed sediment environment (Particle size, water content, pH, nutrient analysis (
)), ground water level, ground level, individual numbers of reed, maximum reed height. As a result of this study, sediment particle size and moisture content of soil on the study area not effected reed habitat, pH showed no difference in each site.
concentration also no difference in each site. Ground level of reed habitat area is more higher than none reed habitat. However Ground water level of reed habitat area is more lower than none reed habitat. As a results of analyzing the influence factors for reed habitat in Nakdong estuary saltmarsh, ground water level and ground level is most influenced factor for reed habitat.
Local Wind Field Simulation over Coastal Areas Using Windprofiler Data
Kim, Min-Seong ; Kim, Kwang-Ho ; Kim, Park-Sa ; Kang, Dong-Hwan ; Kwon, Byung Hyuk ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 195~204
DOI : 10.7837/kosomes.2016.22.2.195
In this paper, the applicability and usefulness of windprofiler input data were investigated to generate three dimensional wind field. A logical diagnostic model CALMET with windprofiler data at ten sites and with weather forecasting model WRF output was evaluated by statistically comparing with the radiosonde data at eight sites. The horizontal wind speed from CALMET simulated with hourly windprofiler data is in good agreement with radiosonde observations within 1.5 m/s of the root mean square error, especially local circulation of wind such as sea breeze over the coastal region. The root mean square error of wind direction ranged
is due to the wind direction error from the windprofiler polluted by ground clutters. Since the exact wind can be produced quickly and accurately in most of the altitude with windprofiler data on CALMET, we expect the method presented in this study to be useful for the monitoring of safe environment as well as weather in the coastal zone.
Temperature Variation in the Ulleung Warm Eddy during 2013~2015
Choi, Yong-Kyu ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 205~211
DOI : 10.7837/kosomes.2016.22.2.205
Based on the Expendable Bathythermograph (XBT) observation and serial oceanographic observation of National Institute of Fisheries Science (NIFS) during July 2013 to July 2015, we examined the temperature variation in the Ulleung Warm Eddy (UWE) in the East Sea. The UWE was always shown during the observation periods even though it was not the whole shape. The coefficient of variation (CV) was largest in the depth of 250 m at the side of the east coast of Korean Peninsula with
in temperature. CV of the horizontal distribution at 250 m depth was also largest in the region biased along the east coast of Korea. The warm eddy moved not only to the east-west direction but also to the north-south direction in the viewpoint of horizontal distributions of temperature. This region between the Korean Peninsula and Ulleung island also is the passage of the East Korean Warm Current. This means that interaction between the East Korean Warm Current and periphery of warm eddy makes large in the variation of movement along the east coast of Korean Peninsula. The largest variation of temperature at 250 m depth seemed to be significantly correlated with the East Sea Intermediate Water (ESIW) underlying Ulleung Warm Eddy. It is suggested that the interaction between the ESIW and UWE is active in the mid-depth along the periphery of UWE.
Survival Strategy of Dominant Diatom Chaetoceros debilis and Leptocylindrus danicus as Southwestern parts of East Sea - The availability of Dissolved Organic Nitrogen under Dissolved Inorganic Nitrogen-limited Environments
Yang, Han-Soeb ; Jeon, Seul Gi ; Oh, Seok Jin ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 212~219
DOI : 10.7837/kosomes.2016.22.2.212
The bioavailability of dissolved organic nitrogen (DON) by dominant species Chaetoceros debilis and Leptocylindrus danicus under dissolved inorganic nitrogen (DIN)-limited condition in the southwestern East Sea was conducted to assess the quantitative evaluation using growth kinetic experiment. Nitrogen sources were nitrate and ammonium as DIN, glycine and urea, which is portion component of DON in East Sea. Maximum specific growth rate (
) and half-saturation constant (
) of C. debilis calculated from Monod equations were estimated to be
in urea, respectively. Also, L. danics was estimated to be
in urea, respectively. Both C. debilis and L. dancius have higher affinity of urea than DIN. The high affinity of urea was indicated that the dominant species were able to growth using urea under DIN-limited conditions. Thus, DON utilization of phytoplankton may be one of the important dominant strategy under DIN-limited environments such as southwestern East Sea.
Distribution Characteristics of Polychlorinated Biphenyls in Sediments inside Jeju Harbor
Heo, Ryun-Yong ; Kam, Sang-Kyu ; Cho, Eun-Il ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 220~227
DOI : 10.7837/kosomes.2016.22.2.220
In this paper, polychlorinated biphenyls (PCBs) were measured in surface sediments collected three times (June, October, December, 2013), inside Jeju Harbor as major harbors of Jeju Island. The concentration of PCBs inside Jeju Harbor was in the range of 1.62~4.45 (mean) ng/g on a dry weight basis and the levels were very low. In the analysis of PCBS homologue patterns, high-chlorinated PCB congeners were dominant in surface sediments inside Jeju Harbor, indicating that their sources were originated from shipping activity. In the relationships between PCBs concentrations and particle size (mud, sand and gravel) in surface sediments, PCBs concentrations were higher in the sediments with higher mud content, indicating that higher PCBs were distributed with increasing sediments of fine gradules. The PCBs concentrations in surface sediments in this study were very low, compared with ER-L (effect range-low) and TEL (threshold effects level) among sediment quality guideleines (SQGs) applied in foreign countries, such as USA, Canada, and Australia, etc), indicating that their biological effects on the bottom organisms in marine environment were expected to be very low.
A Study on the Design of Standard Code for Hazardous and Noxious Substance Accidents at Sea
Ha, Min-Jae ; Jang, Ha-Lyong ; Yun, Jong-Hwui ; Lee, Moonjin ; Lee, Eun-Bang ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 228~232
DOI : 10.7837/kosomes.2016.22.2.228
As the quantity of HNS sea trasport and the number of HNS accidents at sea are increasing recently, the importance of HNS management is emphasized so that we try to develop marine accident case standard code for making HNS accidents at sea databased systemically in this study. First and foremost, we draw the related requisites of essential accident reports along with internal and external decrees and established statistics of classified items for conducting study, and we referred to analogous standard codes obtained from developed countries in order to research code design. Code design is set like 'Accident occurrence
The initial accident information
Accident investigation' in accordance with the general flow of marine HNS accidents of in which the accident information is input and queried. We classified initial accident information into the items of five categories and constructed "Preliminary Information Code(P.I.C.)". In addition we constructed accident response in two categories and accident investigation in three categories that get possible after the accident occurrence as called "Full Information(F.I.C.)", including the P.I.C. It is represented in 3 kinds of steps on each topic by departmentalizing the classified majority as classified middle class and classified minority. As a result of coding marine HNS accident and of the code to a typical example of marine HNS accident, HNS accident was ascertained to be represented sufficiently well. We expect that it is feasible to predict possible trouble or accident henceforward by applying code, and also consider that it is valuable to the preparedness, response and restoration in relation to HNS accidents at sea by managing systemically the data of marine HNS accidents which will occur in the future.
A Study on the Development of Maintenance System for Equipment of LNG-FPSO Ship
Lee, Soon-Sup ; Kang, Donghoon ; Lee, Jong-Hyun ; Lee, Seung-Jun ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 233~239
DOI : 10.7837/kosomes.2016.22.2.233
In this paper, a maintenance system is developed for LNG-FPSO topside and hullside equipment based CBM (Condition Based Maintenance) methodology. First, the development system defined the PWBS(Product Work Breakdown Structure) of major equipment of LNG-FPSO. Second, the development system developed the failure analysis, economic evaluation for optimal maintenance plan and database systems that save and manage information about equipment, failure mode, failure rate and failure cause. Finally, the verification of the development system was applied to the inlet system of topside and the pump tower system of hullside and the system was confirmed the effectiveness of CBMS(Condition Based Maintenance System).
Rheological behavior study of Marine Lubricating oil on the amount of MGO (Marine Gas Oil) dilution
Song, In Chul ; Lee, Young Ho ; Yeo, Young Hwa ; Ahn, Su Hyun ; Kim, Dae il ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 240~245
DOI : 10.7837/kosomes.2016.22.2.240
This paper describes the rheological behavior study such as viscosity and change of shear stress regarding marine lubricating oil according to the amount of Marine Gas Oil (MGO) dilution. The viscosity reduction due to fuel dilution is crucially important characteristic to decreasing engine durability because of the abrasion of piston ring or liner. The lubricating oil used in this paper was blended with magnetic stirrer diluted High Sulfur Diesel (HSD, 0.05 wt%) ratio of 3 %, 6 %, 10 %, 15 % and 20 %. The viscosity and shear stress of diluted lubricating oil were measured with the temperature range from
using a rotary viscometer (Brookfield Viscometer). As the amount of MGO dilution increasing in lubricating oil, the viscosity and stress of those decreased, because the lubricating oil diluted MGO with low viscosity show the trends to decreased viscosity and shear stress. Especially, the viscosity and shear stress of lubricating oil radically decreased at low temperature (
) and doesn't effect in MGO dilution at over
. As temperature risen, the reduction of the viscosity and shear stress in lubricating oil shows the Newtonian behavior. The lubricating oil was required to check up periodically to improve engine durability since the viscosity reduction by MGO dilution accelerating the engine abrasion.
A Study on the Development of Low Speed Twin-Hull Form for Seabed Organic Sediment Collection
Park, Je-woong ; Kim, Do-jung ; Oh, Woo-jun ; Jeong, Uh-cheul ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 246~252
DOI : 10.7837/kosomes.2016.22.2.246
In this study, conceptual design of the fore-body hull form of catamaran type dredging vessel was performed that can effectively remove the contaminated sediments in coastal seabed. The hull form was simpled for the easy hull construction and the resistance performance was investigated to find out the effect of hull form parameters between variation of waterline and angle of entrance, etc. The relation between resistance performance and characteristics of free surface flows according to variation of bow forms was investigated by model testing in the circulating water channel and using Ansys CFX. The improvement of ship resistance performance to the wave resistance decrease due to improved wave pattern has been verified according to move the stem and the volume of the shoulder to the fore part of the vessel.
Surface Characteristics and Antifouling Performance of Inorganic MnO
Nanopowder for Self-polishing Copolymer Paint Applications
Shin, Byeongkil ; Park, Hyun ;
Journal of the Korean Society of Marine Environment & Safety, volume 22, issue 2, 2016, Pages 253~258
DOI : 10.7837/kosomes.2016.22.2.253
nanoscale powders were synthesized by sol-gel method in order to prevent the biological fouling on the ships and offshore structures. Powder characteristics and antifouling performance were investigated with respect to the crystalline, microstructure and surface property for application in self-polishing copolymer resins. The high antifouling activity of
-system biocide was attributed to its redox potential and soluble metal ions originating from tungsten oxides according to the improvements in the powder characteristics. Based on their physio-chemical characterizations, the specific surface areas of powders were about
and the grain size was in the region 100 ~ 150 nm. Powder characteristics and surface properties were improved by the addition of
. Antifouling performance were analyzed according to their surface properties and static immersion tests to determine the effects of the
-system compounds. The surface of 2 wt. % added sample was clean for 5 month. This may be attributed to the ability of
powders to act as a promoter in antifouling agents.