• 한국수산과학회지
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• 제45권5호
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• pp.409-413
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• 2012

The physiological activities and amino acid compositions of dried lavers of Porphyra from the Jangheung, Seochen and Haenam coasts were determined. The ethanol extract of the Haenam dried laver exhibited the greatest 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity (56.1%), ferric-reducing antioxidant potential (FRAP) value(86.5 mM) and total polyphenol content (3.51 ppm) of these dried laver products. In addition, there was a strong positive correlation between the antioxidative activity and total polyphenol content of the laver products, suggesting that polyphenol compounds contribute to the antioxidant capacity in the ethanol extract of dried laver. However, there was no difference among the extracts in terms of cell proliferation activity. Fourteen combined amino acids were identified in oligopeptides from the dried laver products. Of the three extracts, that of the Haenam dried laver contained the highest levels of both free and total amino acids including alanine, glutamic acid, taurine, phosphoserine, and aspartic acid.

• Parasites, Hosts and Diseases
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• 제44권1호
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• pp.1-5
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• 2006

One coastal village in Haenam-gun and two in Yeongam-gun, Jeollanam-do were surveyed for intestinal parasite infections by fecal examination. The egg positive rates of Gymnophalloides seoi were high, $24.1\%$ (14/58) in Haenam-gun and $9.3\%$ (11/118) in Yeongam-gun. The egg positive rates of heterophyids, including Heterophyes nocens, and of Clonorchis sinensis were $10.3\%\;and\;6.9\%$ in Haenam-gun, and $14.4\%\;and\;8.5\%$ in Yeongam-gun, respectively. After praziquantel treatment and purgation, a total of 37,761 fluke specimens were recovered from 17 patients; 11 in Haenam-gun and 6 in Yeongam-gun. Gymnophalloides seoi was the most commonly recovered species, with 37,489 specimens in total (2,205 per person). Other recovered flukes included Heterophyes nocens, Stictodora fuscata, Heterophyopsis continua, Pygidiopsis sUmma, and undetermined species. These results indicate that the areas surveyed are new endemic foci of G. seoi.

• 자원환경지질
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• 제29권3호
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• pp.381-393
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• 1996

한반도 남서부에 위치한 해남지역은 소위 "영동-광주 함몰대"의 서남단에 속하며, 백악기 화산암 및 관련 화산쇄설퇴적암이 우세하게 분포한다. 경상계 유천층군에 대비되는 백악기 지층은 하부로부터 화원층, 우항리층 및 해남층으로 나누어진다. 화원층은 안산암과 안산암질 화산쇄설물로 주 구성되는 성층화산의 특성을 보여주며 우항리층은 폐쇄호에서 형성된 호성퇴적층으로 특정된다. 해남층은 황산 응회암, 해남 응회암, 용당 응회암, 서호 응회암 및 산성 용암류로 나누어지며 이들 응회암류와 용암류는 동원의 산성 화산활동 산물이다. 백악기 지층의 지형적 환상구조는 쥬라기 산이 화강암의 융기활동에 지배된 지질구조로 해석된다. 백악기 화산활동은 세노마니안에서 알비안기의 중성화산활동과 캄페니안에서 코니아시안기에 걸친 산성화산활동의 두 번의 화산활동으로 특징된다.

• 한국농공학회논문집
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• 제60권4호
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• pp.27-35
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• 2018

Food consumption pattern changes, including a decrease in rice consumption and increasing demand for fresh vegetables, along with declining food self-sufficiency rate, more importance is being placed on agricultural industry within Korea. Taking these changes into consideration, there is an increasing necessity for managing upland fields on agricultural sector to revitalize agricultural land use. Therefore, in this study, upland use type was classified into agricultural economic, environmental conservation, and rural social frames. The purpose of this study was to suggest upland use plan with farm manager registration information and spatial data. As results of this analysis, the mean area of agricultural economic frame in Haenam (16.47 ha) was found to be wider than Muan (3.17 ha), and scale improvement zones (54 zones) were located in only Haenam. In case of environmental conservation frame, there's no zone of scenic agriculture land in both study areas, but landuse transition zones were located in Muan (278 zones) and Haenam (604 zones). Agro-healing zones of rural social frame were 1,018 zones in Muan and 1,588 zones in Haenam and kitchen garden sites were 342 zones in Muan and 370 zones in Haenam. These results could be used when we establish the plan of an agricultural infrastructure project or select places for a collaborative agricultural land use project.

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2013년도 추계 학술발표논문집
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• pp.30-31
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• 2013

Land use and land cover change (LULCC) due to human activities directly affects natural systems and contributes to changes in carbon exchange and climate through a range of feedbacks. How land use and land cover changes affect carbon exchanges can be assessed using multiyear measurement data from micrometeorological flux towers. The objective of the research is to assess the impact of land use and land cover change on carbon exchange in a heterogeneous cropland area. The heterogeneous cropland area in Haenam, South Korea is also subjected to a land conversion due to rural development. Therefore, the impact of the change in land utilization in this area on carbon exchange should be assessed to monitor the cycle of energy, water, and carbon dioxide between this key agricultural ecosystem and the atmosphere. We are currently conducting the research based on 10 years flux measurement data from Haenam Koflux site and examining the LULCC patterns in the same temporal scale to evaluate whether the LULCC in the surrounding site and the resulting heterogeneity (or diversity) have a significant impact on carbon exchange. Haenam cropland is located near the southwestern coast of the Korean Peninsula with land cover types consisting of scattered rice paddies and various croplands (seasonally cultivated crops). The LULCC will be identified and quantified using remote sensing satellite data and then analyzing the relationships between LULCC and flux footprint of $CO_2$ from tower flux measurement. We plan to calculate annual flux footprint climatology map from 2003 to 2012 from the 10 years flux observation database. Eventually, these results will be used to quantify how the system's effective performance and reserve capacity contribute to moving the system towards more sustainable configuration. Broader significance of this research is to understand the co-evolution of the Haenam agricultural ecosystem and its societal counterpart which are assumed to be self-organizing hierarchical open systems.

• 전력전자학회논문지
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• 제6권1호
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• pp.1-12
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• 2001

본 논문은 제주-해남 HVDC 시스템의 시율레이션음 다루고 있으며 본 논문의 목적은 HVDC 시스템플 정말하게 모델링 하여 실제의 HVDC 변환소의 레코더에 나타난 파형과 동일한 파형을 만들어 내는 것이며 시스템의 정밀한 모델링을 통하여 INDC 시스템의 제어 게인과 제어기 동작 특성 그리고 HVDC 시스템의 운전 특성을 확인하고자 하는 것이다. 제주-해남 HVDC 시스템은 상위 제어기는 디지털 제어기로 되어 있으나 실제적으로 싸이리스터 밸브를 동작시키는 전략전자 수준의 제어기는 아날로그 제어기로 되어있기 때문에 정밀한 제어 동작을 모델링하기 위해서 아날로그 제어기의 비션형 특성을 고려하였다. 마지막으로, 시뮬레이션은 PSCAD!EMTDC로 구현하였으며 시뮬레이션 결과는 실제의 HVDC 운전 파형과 비교하여 타당성을 검증하였다.

• 대한전기학회논문지:전력기술부문A
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• 제54권4호
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• pp.193-198
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• 2005

As the electrical power industry is restructured, the electrical power exchange is extended. One of the key information used to determine how much power can be transferred through the network is known as available transfer capability (ATC). To calculate ATC, traditional deterministic approach is based on the severest case, but the approach has the complexity of procedure. Therefore, novel approach for ATC calculation is proposed using cost optimization in this paper Cheju Island interconnected HVDC system with mainland in KEPCO (Korean Electric Power Corporation) systems, and the demand of Cheju Island increases about 10 ($\%$) every year. To supply for increasing demand, the supply of HVDC system must be increased. This paper proposed the optimal transfer capability of HVDC system between Haenam in mainland and Cheju in Chju Island through cost optimization. The cost optimization is considered production cost in Cheju Island, wheeling charge through Haenam-Cheju HVDC system and outage cost with one depth (N-1 contingency)

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2006년도 하계학술대회 논문집 Vol.7
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• pp.525-526
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• 2006

One of the electrode in Haenam converter, which is role of rectifier in Jeju-Haenam HVDC system is destroyed and we found many cracks at another electrode and we also found many cracks in Jeju converter station, which is role of inverter of Jeju-Haenam. HVDC system, there is no exact reason for these phenomenon, even though the life cycle of these electrode is 40 years. So, the experts for HVDC system in KEPCO and Anotec corporation, which is manufacturer of electrode, would perform research for the reason of electrode disorder. In this paper analyze the reason of electrode disorder and corrosion in high voltage direct current system.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2001년도 Proceedings ICPE 01 2001 International Conference on Power Electronics
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• pp.600-605
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• 2001

This paper deals with dynamic performance of the Cheju - Haenam HVDC system. The purpose of the study is to verify the control characteristics of the HVDC system and to analyze the dynamic performances by simulation study. Because the HVDC system consists of analogue and digital controller, the simulation is achieved with specification model incorporating nonlinear function. The dynamic performance simulations are performed by PSCAD/EMTDC

• The Korean Journal of Ecology
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• 제14권3호
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• pp.243-255
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• 1991

The vegetation of haenam peninsula(126 30e.l. and 34 30n.l ) was investigated from July, 1990 to 1991. the units of vegetatin were classified by the phytosociological method of broun- blanquet's. the forest vegetation was classified into 7 communities, sasa borealis-quercus acuta, cinnamomum japonicum, camellia japonica, rhododendron mucronulatum-pinus thunbergii, pinus densiflora community, torreya nucifera, chamaecyparis obtusa afforestatio, and the actual vegetation map was drawn in 1 : 50,00 scaie.