• 제목/요약/키워드: Goheung

검색결과 199건 처리시간 0.026초

고흥만 인공습지의 토양유기탄소와 이산화탄소 변동 관측 (Observations of Variations in Soil Organic Carbon and Carbon Dioxide in the Constructed Wetland at Goheung Bay)

  • 강동환;김성수;권병혁;김일규
    • 수산해양교육연구
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    • 제20권1호
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    • pp.58-67
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    • 2008
  • Seasonal variations in carbon dioxide in the air and soil organic carbon in the sediments were monitored at the constructed wetland formed by reclamation work at Goheung Bay. Sediment sampling in the constructed wetland and carbon dioxide measurement in the air were conducted on June 16 and August 23, 2007. Sediments in the constructed wetland were sampled at 11 different points (June 16) and 14 points (August 23), while carbon dioxide in the air was measured at 13 points (June 16) and 15 points (August 23). Water content and organic carbon in the sampled sediments were analyzed in the laboratory. Water content of the sediments was higher than that of general soil, and the variation between June and August was not evident. The amounts of organic carbons in the sediments sampled on August 23 were higher than those sampled on June 16. Also, there was more organic carbon in the sediments sampled at the field of reeds than in the pure wetland area. Daily maximum variation in carbon dioxide in the air was higher on June 16, but the amount of carbon dioxide in the air was greater on August 23. The results of the study suggest that organic carbon in the sediments and carbon dioxide in the air were greater in summer (August 23) than in spring season (June 16) in the constructed wetland at Goheung Bay.

고흥항공센터의 전기장 환경 분석 (Electromagnetic Environment Analysis of Goheung Aviation Center)

  • 장경덕;김태윤;장재웅;민병희;조인경;문귀원
    • 항공우주기술
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    • 제12권1호
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    • pp.46-53
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    • 2013
  • 일반적으로 전자파 환경시험은 외부 전자기 환경의 영향을 배제하기 위하여 전자파 차폐룸에서 시험을 수행하지만, 시험체의 크기가 너무 크거나, 배기가스를 방출하는 등의 제약이 있을 경우 전자파 차폐룸에서 시험이 어려울 수 있으며, 야외 시험장을 이용할 수 밖에 없다. 야외 시험장은 측정 결과에 영향을 미칠 수 있는 전파 반사체, 전파 잡음 등이 시험장 내에 존재하지 않는 것이 이상적이지만 IT, 무선 통신 산업이 발달됨에 따라 기존의 야외 시험장은 수많은 생활전자파노이즈에 오염되어 있는 실정이다. 고흥 항공센터의 경우 도심과 떨어져 있고, 주변이 농경지로 둘러싸여 있어 전자파환경이 청정할 것으로 예상되며, 따라서 대형시험체의 전계강도를 측정할 수 있는 야외 시험장으로 활용이 가능할 수 있다. 이를 확인하기 위해 고흥 항공센터의 전자파환경을 측정하였으며, 30 MHz 이상의 주파수대역에서는 라디오, TV, 핸드폰 등 소스가 분명한 주파수를 제외하고는 대체적으로 깨끗한 결과를 보였으며 야외 시험장으로 좋은 역할을 할 수 있음을 확인하였다.

고흥 길두리 안동고분 출토 금동식리의 과학적 보존 (Conservation Treatment for Gilt-bronze Shoes Excavated from Ahndong tumulus, Gildu-ri, Goheung)

  • 권혁남;서정은;이정민;함철희
    • 보존과학연구
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    • 통권31호
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    • pp.17-30
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    • 2010
  • There were excavated many relics about 200 pieces including gilt-bronze cap, gilt-bronze shoes, bronze mirror and armor, etc. in Ahndong tumulus, Gildu-ri, Goheung. The National Research Institute of Cultural Heritage was undertaking excavation of major damaged relics that were corroded by several environment and were destroyed by a lump of earth. Shoes are consolidated with soils in order to stop destroy during excavation. And these are relocated in order to treat for conservation. Before treatment, X-ray radiography and CT(Computed Tomography) are used in order to examine the original surface and the shape of shoes. As a result, we confirm the condition of shoes. If soils are removed, gilt-bronze shoes are crumbling into little pieces because gilt-bronze shoes are damaged by corrosion and deformation. So, shoes are consolidating with inner soils and are removing outer soils. Throughout conservation treatment, shoes recovered original form and inner soils are consolidated in order to keep the shape of shoes.

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Effect of the Freshwater Discharge on Seawater and Sediment Environment in a Coastal Area in Goheung County, South Korea

  • Nguyen, Hoang Lam;Jang, Min-Seok;Cho, Hyeon-Seo
    • 해양환경안전학회지
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    • 제20권3호
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    • pp.270-276
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    • 2014
  • Seasonal characteristics of water and sediment qualities and potential effects of the freshwater discharge from a small tide embankment interior in a coastal area in Goheung county were investigated from May to September in 2012. Chemical oxygen demand values (COD) were mostly higher than 2 mg/L in summer ebb tide, which exceed the standard value of water quality criteria II of acceptable level for aquaculture activities. Nitrogen and phosphorus were found as the limiting nutrients for algae growth in summer and fall and in spring, respectively. Nitrogen was the limiting nutrient for diatom growth in the whole studied period. The sudden high values of COD, ammonia, dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP) were found in water sample collected from station 5 which located in front of the tide embankment sluice gate during spring ebb tide. The freshwater discharge form the tide embankment interior maybe affected the survey areas during a short time interval. Mean values of eutrophication index of the surveyed coastal region in spring, summer and fall were all bigger than 1. Water quality was mostly considered at level II which acceptable for aquaculture activities. Sediment quality in this study was generally in the range of standard for fisheries environment.

시판 건조김의 음이온, 원소, 색도 및 항산화 활성 (Studies on Anion, Element, Chromaticity and Antioxidant Activities of Commercial Dried Lavers (Porphyra yezoensis) Cultivated in Korea)

  • 박욱민;김기웅;강동수;배태진
    • 한국식품영양과학회지
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    • 제43권2호
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    • pp.323-327
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    • 2014
  • 시판 건조김의 음이온, 원소, 색도 및 항산화 활성을 분석한 결과는 다음과 같다. 음이온 중에 $Cl^-$, $NO_3{^-}$, $SO_4{^2-}$, 및 $PO_4{^3-}$ 함량은 건조김 100 g당 완도 412.00 mg, 고흥 545.90 mg, 서천 297.35 mg 및 완도 79.70 mg으로 가장 높은 반면에 서천 260.34 mg, 서천 232.49 mg, 부산 199.97 mg 및 고흥 35.11 mg으로 가장 낮았다. 원소 N, C 및 S의 조성은 완도가 6.40%, 41.36% 및 0.98%로 가장 높은 반면에 서천이 6.04%, 37.86% 및 0.35%로 가장 낮았다. H의 조성은 서천 6.78%로 가장 높은 반면에 완도 6.52%로 가장 낮았다. 색도의 명도(L값)에서는 완도> 부산> 고흥> 서천의 순으로, 적색도(a값)에서는 서천> 고흥> 부산> 완도의 순으로, 황색도(b값)에서는 완도> 부산> 서천> 고흥의 순으로 산지에 따라 유의적 차이를 나타냈다(P<0.05). 페놀 화합물 함량은 건조김 100 g당 완도가 166.10 mg, 부산이 134.91 mg, 서천이 131.85 mg, 고흥이 122.41 mg의 순으로 높았고, DPPH 라디칼 소거능은 완도가 28.48%, 부산이 23.17%, 서천이 20.31%, 고흥이 18.96%의 순으로 높았고 산지에 따라 유의적 차이를 나타냈다(P<0.05).

국가 비행종합성능시험장에서의 민간 무인항공기 비행시험 운용절차 수립에 관한 연구 (A Study on Establishment of Civil UAV's Flight Test Operation Procedures for Goheung Flight Test Aerodrome)

  • 임지성;박대진;전현우;이상철
    • 한국항공운항학회지
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    • 제25권4호
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    • pp.170-176
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    • 2017
  • In recent years, Unmanned Aerial Vehicles (UAVs) were actively developed in various fields. In development process of UAVs, flight test is performed to ensure that minimum safety requirements and technical requirements are met. By constructing flight test infrastructure such as takeoff and landing facilities, operation procedure, and equipments, flight test can be performed effectively. In this paper, operation procedures of civil UAV's flight test are proposed. The procedures proposed are composed by two main steps: first, planning and permitting procedure of flight test. Secondly, execution and control procedure of flight test.

ABSOLUTE RADIOMETRIC CALIBRATION OF 1M SATELLITE IMAGERY

  • Lee Sun-Gu;Lee Dong-han;Seo Doo-chun;Song Jeong Heon;Kim Yongseung;Paik Hongyul
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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    • pp.616-619
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    • 2005
  • CALNAL team of Korea Aerospace Research Institute(KARI) performed field campaigns for absolute radiometric calibration of 1m satellite image on Daejeon and the cal/val site of Goheung. The satellite image have spatial resolution of 1m in panchromatic spectral band of 450-900nm. The performed cal/val method is the reflectance-based of vicarious calibration methods. We collected ground-based and meteology data such as temperature, surface pressure and reflectance of targets, and radiosonde data used only to test in Goheung. Data collected on each field served as input to radiative transfer codes to generate a top-of-atmosphere(TOA) radiance estimate. Derived TOA is compared with DN of overpass satellite to calculate calibration coefficient of gain and offset.

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고흥 길두리 안동고분 출토 금동관모의 수습과 보존처리 (I) (A Study of Conservation treatment for Gilt-Bronze Cap Excavated from Ahndong tumulus, Gildu-ri site in Goheung)

  • 서정은
    • 보존과학연구
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    • 통권29호
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    • pp.91-110
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    • 2008
  • The museum of Chonnam National University unearthed and researched an Andong tumulus located in Gildu-ri, Podumyeon, Goheung, Jeonnam in March 2006, and many remains were excavated from the tomb. The Conservation Science division of the National Research Institute Cultural Heritage was asked to deal with about 100 pieces of relics with gilt bronze, including a Gilt-Bronze Cap, and ironware remains from the excavated site for the museum of Chonnam National University and urgently dealt with the excavated site for 4 days from March 27 to March 30, 2006. All of the remains were dealt with and cleaned up in this way, were moved to the National Research Institute Cultural Heritage, and have been under a conservation treatment until now. In this study, excavated conditions, the handling of the excavated site, the conservation treatment process until now, and the forthcoming conservation treatment plans will be examined specifically focusing on the Gilt-Bronze Cap with gilt bronze among many other remains.

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고흥·완도 해수표층온도 상승이 미역 단수에 미치는 영향 (The Impacts of Seawater Surface Temperature Rising on Sea Mustard Yields of Goheung and Wando Coast in Korea)

  • 조재환;서정민;이남수;하현정
    • 한국환경과학회지
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    • 제27권3호
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    • pp.147-154
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    • 2018
  • The purpose of this article is analyzing the impacts of seawater surface temperature rise on sea mustard yields of Goheung and Wando coast in Korea, with employing a panel data regression model. Our results show that there has been a negative impacts on sea mustard yields as seawater surface temperature continuously has been rising. Especially if the upward trend in seawater surface temperature since 2005 will be maintained in future, sea mustard yield is expected to decrease by 2.6% per year.

친환경농업 채택에 영향을 미치는 요인 -전남지역 시설채소 재배농가를 중심으로- (Factors Influencing the Adoption of Environment-Friendly Agriculture -With Emphasis on Greenhouse Vegetable Growers of Jeonnam-)

  • 김선애;이기웅
    • 한국유기농업학회지
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    • 제18권2호
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    • pp.113-134
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    • 2010
  • The purpose of the study is to investigate factors influencing the adoption of environment-friendly agriculture in greenhouse vegetable production of Jeonnam province. An interview survey were conducted during 2008, including six counties: Gwansanku of Gwangju, Gwangyang, Goheung, Damyang, Boseong, and Suncheon. Major crops grown in surveyed area were green peppers, cucumbers, strawberries, cherry tomatoes, tomatoes, and watermelons. Logit model results show that adopters of environment-friendly agriculture are more likely to participate in extensional education programs, attend educational programs on environment-friendly agriculture, have greater cultivated acreage, and have larger agriculture-only-designated farmland. However the adopters are less likely to have greater number of family members participating in farming, and live Goheung county. Efforts should be made in extensional education programs to lead more vegetable growers to adopt environment-friendly agriculture. Policy makers' additional efforts should be followed to increase adoption rate of environment-friendly agriculture in lower adopted areas.