• 한국축산시설환경학회지
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• 제19권2호
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• pp.169-176
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• 2013

This survey was conducted to investigate the present conditions of operational management in the 45 animal manure public resource center (APRC) in Korea. The regional distribution, processing capacity per year, capacity of liquid fertilizer storage tank, solid-liquid separation, utilization of facilities, odor reduction facility, on-site odor strength, complained in the community, liquid fertilizer sprayed area, use the Agrix, land application recipe, composting degree, quality management and general grading were surveyed and evaluated. General grading was divided with 5 stages (very good, good, fair, lack and bad). The number of evaluated "very good" animal manure public resource center was 7, and "good" was 5 and more than "fair" was 27. However, the number of evaluated negatively including "lack" and "bad" was occupied as 40% of the 45 animal manure public resource center.

• 정보처리학회논문지A
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• 제12A권2호
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• pp.161-170
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• 2005

지리적으로 분산된 이 기종의 유휴 자원들을 서로 연결하여 가상의 고성능 컴퓨팅 자원으로 사용하는 그리드에서 자원에 대한 접근 제어시스템의 구축은 필수적이다. 본 논문에서는 그리드 환경 구축 시 전 세계적으로 가장 많이 사용되는 Globus Toolkit을 기반으로 하는 그리드 접근 제어 시스템을 설계 및 구현한다. 특히, 각 자원을 제공하는 사이트의 자율성을 보장하기 위해 각종 환경 설정 파일들을 이용하고 이를 이용한 부가 서비스 개발이 용이하도록 다양하고 자세한 정보를 만들어 내도록 설계 및 구현하였다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2011년도 춘계학술대회 초록집
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• pp.55.2-55.2
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• 2011

The final site of offshore wind power plant should be decided by comprehensive examination of various conditions such as wind resource, sea depth, geology, grid connection, social circumstance and environmental issue. Wind condition is typically regarded as the most important factor because wind energy increases in proportion to wind velocity and it directly relates to the amount of power output, efficiency of power plant and profitability. Advanced countries in the offshore wind power sector such as Denmark, UK and Germany, they are analyzing wind resource accurately by installing the meteorological mast in the ocean in order to get the optimal type of wind turbine and maximum generation efficiency. Also, it is made much of designing offshore power plant on the basis of actual measurement by met-mast and those wind farms have a chance to get the loan with reduced interest rate in project financing. In Korea, the HEMOSU-1 is installed in the ocean around Wido island to analyze wind resource of test bed of 100MW offshore wind power on october last year. This paper deals with the design and construction procedure of the first met-mast in Korea and also shows the site characteristics of test bed. Therefore, this paper will give useful information to local governments and private business sector who are trying to construct offshore wind farm and it can also be a good reference for the following projects of meteorological mast in near future.

• 한국비블리아학회지
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• 제20권4호
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• pp.159-172
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• 2009

전자자원 수집과 관리 영역에 있어서의 발전과 함께 과학기술분야를 필두로 하는 학술 정보자원의 급격한 가격 상승은 전자자원 관리에 있어서의 협력의 필요성을 증진시키고 있다. 이에 따라 많은 국가들이 대학 및 연구도서관을 중심으로 하여 국가차원의 전자형태 학술 정보원의 효율적 수집과 관리를 위한 협력을 기반으로 한 레포지토리 형태의 학술정보자원 관리 프로그램을 운영하고 있다. 우리나라에서도 각 영역별 학술정보 관리를 위해 협력형 전자자원 관리 프로그램의 구축을 위한 노력이 경주되고 있다. 이러한 맥락에서 이 연구에서는 NSDL, NTIS, Intute, 그리고 ARROW를 사례로 하여 현재 구축되어 있는 협력형 레포지토리의 다양한 유형들을 중심으로 온라인 정보접근 및 검색경로를 포괄하는 국가차원 혹은 지역 단위의 협력형 레포지토리의 주요 구축 배경과 장서구성 현황을 일별하였다. 그리고 e-metrics 프로젝트들에서 제시하고 있는 측정지표들을 종합적으로 검토한 후, 이를 기반으로 협력형 레포지토리가 구축하고 있는 전자자원을 평가하기 위한 평가 요소들을 도출하여 보았다.

• 한국환경과학회지
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• 제17권6호
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• pp.591-599
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• 2008

In order to support the development of wind farms in Jejudo, a wind resource database for Jejudo has been established using a meteor-statistical analysis of KIER(Korea Institute of Energy Research) met-mast measurements and KMA(Korea Meteorological Administration) weather data. The analysis included wind statistics, tower shading, an exposure category classification using satellite images, the effect of atmospheric stability on the wind profile exponent, and a correlation matrix of wind speed to gain an understanding of the meteorological correlation between long-term weather observation stations and short-term met-mast measurements. The wind resource database for Jejudo, is to be provided as an add-on to Google $Earth^{TM}$, which is expected to be utilized as a guideline for the selection of an appropriate reference site for long-term correction in the next wind farm development project.

• 한국문헌정보학회지
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• 제34권2호
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• pp.211-232
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• 2000

국가간 자료교환(Exchange)이나 기증에 의존하는 외국정부 간행물의 수집과 검색은 전자정부시대를 맞이하면서 새로운 관리제도가 필요하게 되었다. 그에 대한 대안으로 인터넷상의 외국정부정보에 대한 메타사이트를 만들고, 서브젝트 게이트웨이를 검색모형으로 제시함으로써 외국정보에 관한 정보원개발(Collection Development)과 이용자 서비스로 이용하고자 한다. 우수한 메타사이트를 선정하기 위하여 AltaVista의 anchor 기능과 link 기능을 이용하여 계량적인 평가를 하였으며, 서브젝트 게이트웨이 검색모형으로는 분산 메타데이터베이스의 통합 검색 시스템인 Isaac Network 구조를 제시하였다.

• Fisheries and Aquatic Sciences
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• 제26권12호
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• pp.715-725
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• 2023

Microplastic (MP) pollution in aquatic environments is a growing concern worldwide. This study investigated the abundance, types, and attributes of MPs in the surface water at two industrial sites (Avoimitro Ghat and Kalurghat) along the Karnaphuli River in Chattogram, Bangladesh. Sampling was conducted over eight months across three transects encompassing a total area of 500 m at each site. A manta net of 200 ㎛ mesh size was used to sample MPs. The obtained samples were subsequently filtered, enumerated, and characterized using a stereo microscope and imaging software. The mean abundance of MP particles (per km² ) was found higher in Avoimitro Ghat (94,861 ± 57,126) than in Kalurghat (31,343 ± 23,183). A significant statistical difference (p < 0.05) was observed in the mean abundance of MP particles between the wet and dry seasons. The fragment group of MP exhibited the most abundant category, whereas the pellet category displayed the lowest. MPs with an elongated shape prevailed at both locations throughout all seasons. At Avoimitro Ghat, blue-colored MPs demonstrated the highest mean count, while in Kalurghat, the highest mean count belonged to brown-colored MPs. The size distribution of MPs differed between the two sites, with 1-2 mm MPs being plentiful in both seasons and Avoimitro Ghat, whereas MPs ranging from 500 ㎛ to less than 1 mm were abundant in Kalurghat. Ten (10) polymer types were found from Fourier-transform infrared spectroscopy (FTIR) analysis with high levels of polypropylene atactic in both Avoimitro Ghat (32%) and Kalurghat (17%). The findings provide important insights into MP pollution in the Karnaphuli River, which may aid in developing effective strategies to mitigate the impacts of MP pollution on the aquatic ecosystem and human health.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2018년도 추계학술대회
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• pp.24-24
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• 2018

Degraded plantation forests are increasing because of unfavorable forestry conditions prevailing in Japan, including falling timber prices, increasing operational costs, and aging and declining forestry workforce. To remedy this situation, appropriate management strategy is required. This study introduces the challenges of Odai Town, Mie Prefecture that employed a new management strategy by evaluating site suitability for conifer forests and that proposes a new forest management regime of planting deciduous trees in unsuitable sites. The site suitability for conifer forests was evaluated from two aspects: the natural site conditions and the relationship among site conditions, growth, and damage by Anaglyptus subfasciatus Pic. in Cryptomeria japonica D. Don and Chamaecyparis obtusa Sieb. Et Zucc. forests. By analyzing the relationship among site conditions, growth, and insect damage based on field data obtained in plantation forests, growth evaluation and insect damage evaluation maps were developed. Based on the natural forest investigation, natural site condition maps for C. japonica and C. obtusa were established. Furthermore, by integrating these evaluation maps with the forest road maps showing the accessibility to the forest, the forest management regime for the whole plantation area of Odai Town was established. The forest management regime map indicates the sites suitable for forestry: suitable for long-rotation, short-rotation, and potential sites for short-rotation. The sites unsuitable for forestry were considered to be more suitable for broadleaved forests. Clear-cutting was conducted in a small area and different seral stage saplings (approximately 20 deciduous tree species) suitable to the site conditions were planted in an area of $80-120m^2$ protected by deer-fences. This might establish a forest composed of many species with a multilayer vertical forest structure in a short period. The planted saplings were distributed neither randomly nor uniformly to reflect the natural distribution of trees in the forest. A challenge to develop new products using the deciduous trees has started, such as wood chips for preparing smoked food, essential oil, and deodorizer. As these challenges have just begun, their effects on enhancing sustainable resource management are still being monitored. Even with the challenges, this regime can be of high value as a management strategy to remedy the situation of expansion of degraded forests in Japan.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2010년도 정기총회 및 춘계학술발표회
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• pp.15-15
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• 2010

Koran ginseng(Pnax ginseng) is one of the most important medicinal plants in Orient. Among the nine cultivars of Korea ginseng, Chunpoong commands a much greater market value and has been planted widely. A rapid and reliable method for discriminating the Chunpoong cultivar was developed by exploiting a single nucleotide polymorphism (SNP) in the mitochondrial nad7 intron 4 region of nine Korea ginseng cultivars using universal primers. A SNP was detected between Chunpoong and other cultivars and modified allele-specific primers were designed from this SNP site to effective method for the geneic identification of the Chunpoong cultivar of ginseng.

• 문화기술의 융합
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• 제5권1호
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• pp.457-467
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• 2019

최근에는 시각적으로 건설현장을 효율적으로 관리하기 위한 다양한 방법이 시도되고 있으며, 특별히 폭이 좁고 거리가 긴 건설현장의 육상보다는 공중에서 무인항공기(UAV)나 드론(Drone) 등에 의하여 실시간으로 현장의 상황을 시각적으로 촬영하여 기록하거나 분석할 수 있는 방법이 매우 유용하다. 본 연구에서는 현재 진행되고 있는 현장을 대상으로 무인항공사진촬영을 주기적으로 3회 이상 촬영하고 촬영시점에 주요 구조물에 대하여 USN 센서를 동시에 작동시켜서 건설현장에서의 공사 진행정도와 환경상태를 동시에 확인하고 매칭시킴으로서 건설현장의 영상정보와 환경정보를 효율적인 공사관리를 위하여 활용할 수 있도록 하는 것을 연구목표로 하였다. 그 결과, 건설 현장의 전문기술자뿐만 아니라 행정 관리자도 건설현장의 진행과정과 그 준공상황을 원하는 시점에 상세한 현장상황을 시각적으로 확인하고 적절한 예산투입과 적합한 자원의 지원에 있어서의 의사결정을 도울 수 있도록 함으로서 자연적인 환경요인에 의하여 수시로 변할 수 있는 건설현장의 안전관리와 재난예방, 다각적인 변화 요인의 검토를 각 분야의 전문가들이 함께 의논하여 최적의 해답을 도출하였다.