• Korean Journal of Fisheries and Aquatic Sciences
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• v.27 no.4
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• pp.434-444
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• 1994

Physical and acoustic properties of sediment core samples recovered from the Kwangyang Bay, the Yeosu Sound, and the inner shelf of central South Sea, Korea were investigated. Compressional wave velocity, density, porosity, and shear strength were measured at 10cm interval's along the core depth. Sediment texture(grain size, sand, silt, and clay contents) were also measured and correlated with the physical properties(density, porosity, and shear strength). The physical and acoustic properties of the sediment changed gradually from the Kwangyang Bay to the shelf area in accordance with the distance from the input source of the terrigenous sediment. The Yeosu Sound acted as a route of sediment transport from the estuary(the Seomjin River) to the shelf and vice versa. The physical and acoustic properties of the Yeosu Sound sediment conformed to an intermediate stage between river mouth and shelf areas. These results can be utilized to trace the influence of the Seomjin River on the so-called mud belt of Korea.

• The Korean Journal of Malacology
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• v.31 no.3
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• pp.203-212
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• 2015

This study was performed to describe the influence of temperature on the clearance rate and ingestion rate of the blue mussel, Mytilus galloprovincialis with three food organisms and habitat location (shell size) of mussel. Food organisms used in this experiments were Isochrysis galbana, Chaetoceros didymus and Prorocentrum dentatum. The size of mussels inhabiting higher midlittoral zone was smaller than those of lower midlittoral zone. Regardless of the kind of food organisms, filtration rates and ingestion rates of higher midlittoral mussels were higher than those of lower midlittoral mussels in experiment temperature conditions. The variation of filtration rate and ingestion rate showed same tendency with temperature. Filtration rates and ingestion rates increased with temperature, and recorded maximum values at $20-25^{\circ}C$ of temperature, and thereafter decreased gradually. Theoretical optimum temperatures showing maximum filtration rates and ingestion rates estimated from polynomial regression curves were also in the range of $20-25^{\circ}C$. Blue mussels showed different variation of filtration rate and ingestion rate with the kind of food organisms. Filtration rates and ingestion rate based on cell number were similar regardless of habitat location(tidal elevation) and food organisms. Ingestion rates based on carbon content showed very high values in case of P. dentatum beside I. galbana and C. didymus as food organism.

• Journal of Navigation and Port Research
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• v.33 no.8
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• pp.539-548
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• 2009

This work aims to highlight the importance and role of the theme and message of BIE exhibitions in the 21th century, and to suggest essential points concerning the preparation of the Expo 2012 Yeosu which would focus on the theme and urban development. After the Expo '98 Lisbon, the theme and message of Expo has been changed from focusing on the progress of technology itself to rethinking of progress itself and focusing on the future of the globe. This change also reflects the need to solve the problems of global environment problem in today's human society and to pursue the new technology which enable to make sure sustainable development. Because the Expo Yeosu, whose theme is the sea and coast, is compared to case of Expo Lisbon whose theme is ocean, we need to make a benchmarking the case of the Expo Lisbon and to make efforts to differenciate the case of the Expo Lisbon. This article suggests concerning the theme and urban development plan of the Expo Yeosu as follows: First, to propose current and future cutting edge technology to utilize the resources of the ocean and the coast and to propose the Yeosu Project, a capacity-building program designed to address various challenges confronting developing countries. Second, to propose a different urban redevelopment plan of capital Lisbon, ie to propose sea port cities network to link the advent of the Namhaeansidae.

• Journal of the Korean association of regional geographers
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• v.22 no.2
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• pp.411-423
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• 2016

The purpose of this study is to analyze the specialist groups' perception and assessment on the urban development impacts by the EXPO 2012 Yeosu Korea, hosted from May 15 to August 15, 2012. In general, the specialist group positively evaluate about the urban development impacts of the 2012 Yeosu EXPO. They assess considerably positively, in particular on the enhancement of accessibility toward the capital region from Yeosu city, the vitalization of the local economy, the improvement of the city image, the invigoration of tourism resulted from the expansion of tourists accommodation facilities. In addition, they appraise that the urban development of Yeosu city would be advanced about 9.5 years in the wider transportation network and about 9.4 years the improvement of urban residential environment through hosting of the EXPO. They agree with that the image of Yeosu city as a site of marine tourism was significantly improved after the EXPO.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.27 no.4
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• pp.293-302
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• 1991

The anomalous sea level deviation or storm surge caused by the typhoon Thelma in 1987 are studied analysing tidal observation data at 7 stations in the south coast of Korean peninsula. The surges are calculated by subtracting the predicted tidal height from the observed tidal record. The tidal deviation at these stations along the coast are discussed in association with meteorological data. The sea level anomalies are studied by means of the empirical orthogonal function (EOF) analysis and the fast fourier transform (FFT) method. The results of analysis suggest that the peak value of surges are higher at the tidal stations in semi-enclosed bay and in long narrow channel than at the ones facing with the open sea. From the result of EOF analysis, the temporal and spatial fluctuations of storm surge can be described by the first EOF mode, which explains 63% of the total variances during the passage of typhoon Thelma. The deviation of storm surge in the studied areas indicates bi-modal peak during the passage of typhoon Thelma. From the results of FFT spectrum analysis, the peak of energy of autospectrum for surge, atmospheric pressure, and wind stress appeared at low frequency fluctuations band of 0.008-0.076 cph over the 4 stations. Auto-correlation function of surge showed periodicity, while that of atmospheric pressure and wind stress indicates no periodicity. The result of FFT analysis shows that the typhoon surges are related chiefly with the change of atmospheric pressure in an open bay (Cheju Harbor), but with the wind stress in a semi-enclosed bay (Yeosu Harbor).

• Journal of Practical Agriculture & Fisheries Research
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• v.14 no.1
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• pp.107-115
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• 2012

In juvenile size, the maximum clearance rate and ingestion rate were 15mm, which is the 70.8 mL/h, 4245.0×104cells/h, respectively. But the lowest clearance rate and ingestion rate were found at 5mm, which is the 4.1 mL/h, 246.0×104cells/h, respectively. The highest clearance rate and ingestion rate of AFDW seen at 7.5mm, with 3.3 mL/mg AFDW/h, 196.0×104cells/mg AFDW/h, respectively. According to the results of water temperature, clearance rate and ingestion rate were lowest at 10℃, showing the 0.3 mL/h, 20.3×104cells/h, respectively. The highest clearance rate and ingestion rate were 25℃, which is the 16.6 mL/h, 993.4×104cells/h, respectively. But in 30℃, clearance rate and ingestion rate decreased to the 12.9 mL/h, 772.6×104cells/h, respectively. With respect to the food density, the experiment groups with 30×104 cells/mL and 240×104 cells/mL showed the clearance rate of 21.1 mL/h and 2.3 mL/h, respectively. But the experimental group with 120×104 cells/mL or more showed decreased clearance rate. While, the maximum ingestion rate was at 60×104 cells/m, showing the 876.2×104cells/h.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2010.05a
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• pp.219-222
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• 2010

여수 연안 소형 정치망 2곳에 있어서 혼획과 투기에 대하여 2007년부터 2010년까지 26회의 조사를 실시하였다. 매년의 조업 일수는 어황이나 해황에 따라 변동이 심했으며, 최근에는 여름과 가을철에 해파리 때문에 조업을 포기하므로서 조업일수가 많지는 않았다. 어획된 전체 어종수는49종이었고, 어획후 전량투기되는 어종수는 7종(2007년)으로 나타났다.

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 1996.10a
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• pp.84-88
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• 1996

본 연구에서는 전회의 남해도해역조석수치모형(최 등, 1995)을 확장하여 가막양이 포함되도록 조석수치모형을 수립하였다. 개체 식별 가능한 다수의 입자가 M$_2$ 조석 주기 동안 이동되도록 수치실험을 행하였고 여수해만 입구와 노량수도 및 창선해협과 대방수도를 경계로 교환량을 평가하고 광양만 및 진주만의 해수 교환률을 산정하였다. 95년 7월의 씨프린스호 사고에 이어 7월 17일 호남정유의 호남 사파이어호의 누출유 사고는 18일 밤부터 여수시 돌산대교를 거쳐 청정해역인 가막양으로까지 확산되었는바 본 고에서는 광양만 일대의 오염물질 확산거동을 수치적으로 연구하기 위한 초기단계의 과업을 수행하였다. (중략)

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2008.11a
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• pp.280-281
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• 2008

본 연구 결과에 의하면, 창조류 분포는 외해에서 유입된 북향류의 일부가 오동도 주변 방파제를 돌아서 신항 내부로 유입되는 양상과 가막막과 연결된 좁은 해협에서 압류되면서 유속이 증가하는 특성을 잘 보여주고 있다. 낙조류는 광양만을 빠져나온 남향류의 일부가 신항의 북방파제에 부딪히면서 신항에서 유출되는 수괴와 만나 오동도 주변 방파제를 돌아나오면서 가막만에서 유출되는 수괴와 합류하여 외해로 빠져나가는 분포를 보여주고 있다. 여수 신항의 해수유동은 주변 해역에 비해 아주 미약한 것으로 관측되었으며 항내 수질 및 환경 개선을 위해서는 유입원의 제거와 함께 해수 및 물질 교환을 위한 방안이 마련되어야 할 것으로 판단된다.

• The Safety technology
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• no.161
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• pp.15-17
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• 2011

한전산업개발(주)은 1992년부터 전국 발전소 석탄취급설비 운전업무를 시작한 이래 회처리 설비 운전, 진용철도, 운영, 석탄취급설비 정비에 이르기까지 다양한 업무를 담당하고 있다. 오랜 Know-how와 축적된 기술경험을 바탕으로 1998년 국내 최초로 탈황설비 운전을 수행하는 등 지금까지 환경친화산업을 펼쳐나가는 전문회사로 국가 기간산업에 일익을 담당하고 있다. 동양의 나폴리라 불리우는 전남 여수시에 소재한 한전산업개발 호남사업소(소장 최환호)도 호남화력 발전처 내에 위치하면서 여수국가 산업단지와 인근지역에 안정적인 전력을 공급하는데 중요한 역할을 담당하고 있다.