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위성영상을 이용한 산불피해 이후 자연복원과 인공복원 방법에 따른 식생회복 모니터링 (Monitoring of Vegetation Recovery According to Natural and Artificial Restoration Methods After Forest Fire Damage Using Satellite Imagery)

  • 황영인;강원석;박기형;이경철;한상균;권형근
    • 현장농수산연구지
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    • 제24권3호
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    • pp.33-43
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    • 2022
  • This study was conducted to monitor the vegetation recovery in the areas damaged by the forest fires on the east coast that occurred in April 2000. The study site was a forest fire-damaged area in Samcheok-si, Gangwon-do, and 21 monitoring areas (12 natural restoration sites, 9 artificial restoration sites) were selected to analyze the vegetation recovery trend since 1998. The vegetation recovery trend was compared by calculating the values according to the year using the difference Normalized Burn Ratio (dNBR) and Normalized Difference Vegetation Index (NDVI) based on satellite images (Landsat TM/ETM+ and Sentinel-2A). As the result of this study, all 21 sites, vegetation was recovered, and both groups showed the greatest recovery in summer. In the case of the dNBR, the artificial restored sites showed higher values than the natural restored sites, and in the case of the NDVI, the natural restored sites were higher than the artificially restored sites in summer and autumn. However, the difference between the two groups of natural and artificial restoration sites was not significant. Therefore, the direction of forest restoration after forest fire damage can be effectively restored if properly implemented for the purpose of restoration of the target site.

산림복원 평가지표를 활용한 산림 훼손지 우선복원대상지 발굴 - 강원도 지역을 대상으로 - (Identification of Priority Restoration Areas for Forest Damage Sites Using Forest Restoration Evaluation Indicators in Gangwon-Do)

  • 박윤선;송정은;박천희
    • 한국환경복원기술학회지
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    • 제27권1호
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    • pp.17-29
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    • 2024
  • This study was conducted to select the restoration priority of forest damage sites in Gangwon Province. We first identified the status of damaged areas. We then selected restoration evaluation indicators through a literature review. We then set weights for these indicators through expert surveys. We next acquired data that can represent these indicators and spatially mapped them. Finally, we prioritized the restoration target sites by taking the weights. The results of the study showed that disaster sensitivity and ecologicality are important criteria for selecting the restoration priority of damage sites. The analysis showed that damage sites in Doam, Jeongseon, Samcheok and Inje are in urgent need of restoration. The results of this study are significant in that they selected the restoration priority of damage sites in Gangwon Province based on the restoration priority evaluation criteria selected based on expert surveys. However, the priority restoration areas derived from the results of this study are not actually implementing restoration projects at present. Therefore, it is judged that it would be efficient in various aspects to establish the restoration priority area based on scientific analysis techniques and carry out the project for efficient implementation of the restoration project. In this study, it can be pointed out that the priority of restoration of damage sites was derived based on data from the past due to the limitation of data acquisition. However, the fact that the priority restoration area inferred based on past data has been restored over time has improved the reliability of the study by verifying the usefulness of the priority extraction technique. In the future, if the priority of damage sites is extracted by extracting the restoration target area boundary through the latest data based on the methodology applied in this study, it is considered that it will be available as a result that can be applied to the field.

Comparison of vegetation recovery according to the forest restoration technique using the satellite imagery: focus on the Goseong (1996) and East Coast (2000) forest fire

  • Yeongin Hwang;Hyeongkeun Kweon;Wonseok Kang;Joon-Woo Lee;Semyung Kwon;Yugyeong Jung;Jeonghyeon Bae;Kyeongcheol Lee;Yoonjin Sim
    • 농업과학연구
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    • 제50권3호
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    • pp.513-525
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    • 2023
  • This study was conducted to compare the level of vegetation recovery based on the forest restoration techniques (natural restoration and artificial restoration) determined using the satellite imagery that targeted forest fire damaged areas in Goseong-gun, Gangwon-do. The study site included the area affected by the Goseong forest fire (1996) and the East Coast forest fire (2000). We conducted a time-series analysis of satellite imagery on the natural restoration sites (19 sites) and artificial restoration sites (12 sites) that were created after the forest fire in 1996. In the analysis of satellite imagery, the difference normalized burn ratio (dNBR) and normalized difference vegetation index (NDVI) were calculated to compare the level of vegetation recovery between the two groups. We discovered that vegetation was restored at all of the study sites (31 locations). The satellite image-based analysis showed that the artificial restoration sites were relatively better than the natural restoration sites, but there was no statistically significant difference between the two groups (p > 0.05). Therefore, it is necessary to select a restoration technique that can achieve the goal of forest restoration, taking the topography and environment of the target site into account. We also believe that in the future, accurate diagnosis and analysis of the vegetation will be necessary through a field survey of the forest fire-damaged sites.

Lithium atoms adsorbed on graphene

  • Kim, ChanRan
    • EDISON SW 활용 경진대회 논문집
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    • 제2회(2013년)
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    • pp.278-281
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    • 2013
  • We investigate special arrangements of lithium atoms adsorbed on graphene. By changing adsorption sites and increasing number of atoms, adsorption of lithium atoms on ($3{\times}3$) graphene is investigated using the density functional theory (DFT) calculations. In this study, three kinds of adsorption sites are considered, such as top, bridge and hollow sites.

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국가 지정 문화재 '명승'의 유형과 팔경(八景), 동천구곡(洞天九曲)과의 연관성 (Types of Scenic Sites of State-Designated Cultural Property and Relationship between Pal-Kyung and Doncheon-Gugok)

  • 노재현;신상섭
    • 헤리티지:역사와 과학
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    • 제43권1호
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    • pp.128-159
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    • 2010
  • 국내 명승 지정 추이와 유형 및 변천 그리고 분류상의 제문제를 검토하고 국가 지정 문화재인 명승 총 68건을 대상으로 전래팔경 및 동천구곡 그리고 현대팔경과의 연관성을 추적하여 전래경승적 의미와 가치가 현재에도 유전되고 있음을 밝히고자 한 본 연구의 주요 결과는 다음과 같다. 첫째, 역사 문화경관적 성격을 갖는 명승의 지정이 늘고 있음은 초기 문화재보호법상 지정 사유로 명기된 문화적 활용성 역사성 문학성 사상적 배경 등의 개념을 적극 수용하기 위한 취지로 이해됨에 따라 고정원과 전망점 등 문화적 명소 개념이 명승 지정의 중요 기준으로 자리 잡고 있음은 매우 고무적 현상이다. 둘째, 명승 지정 유형별로 분류하면 '자연경관이 뛰어난 곳'이 30건(44.16%), '저명한 건물 또는 정원 및 중요한 전설지' 21건(30.9%),' 저명한 경관 전망지점' 9건(13.2%) '역사 문화 경관적 가치가 뛰어난 곳' 7건(10.3%) 그리고 '동 식물의 서식지로서 경관이 뛰어난 곳' 1건 순으로 분석되었다. 셋째, 현재 명승 분류기준에 따르면 팔경지로 분류되는 명승은 7건, 동천으로 분류되는 명승은 3건이며 구곡으로 분류되는 명승은 없는 것으로 볼 때, 외형적으로 전체 명승 중 팔경 및 동천구곡으로 분류되는 명승은 도합 10건(14.7%)에 지나지 않는다. 넷째, 문헌자료 및 인터넷 분석에 따른 전래팔경 관련 명승은 46건(67.7%)이고 이 중 경관대상(장)으로 팔경에 포함된 명승은 38건(55.9%), 경관시점(장)으로 팔경에 포함된 명승은 8건(11.8%)으로 집계됨에 따라 총 46건(67.7%)의 명승이 전래팔경과 관련된 명승으로 분석되었다. 다섯째, 동천과 관련된 명승은 8건(11.8%)이었고 구곡과 관련된 명승은 4건(5.9%)이었으며, 총 40건(48.9%)의 명승이 현대팔경으로 설정되어 지역 명소로서의 역활과 관광홍보 콘텐츠로 활용되고 있음을 확인하였다. 여섯째, 전래팔경 및 현대팔경 또는 동천구곡과 관련된 명승은 총 62건(91.2%)으로 외형적 분류와는 달리 지정 명승 대부분은 경관에 내재된 역사적 문화적 의미와 깊숙이 관련되고 있음을 확인하였다.

The Impact of Service Perceptions and Product Perceptions on the Formation of Fashion Internet Shoppers' Satisfaction and Purchasing Behavioral Intentions

  • Lee, Seung-Min;Ku, Yang-Suk
    • 한국의류산업학회지
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    • 제3권5호
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    • pp.395-402
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    • 2001
  • The purpose of this study was to develop the service and product perceptions' dimensions for fashion retail sites and to identify the service and product perceptions' dimensions influencing consumers' satisfaction and purchasing behavioral intentions for fashion retail sites. A set of self-administered questionnaires were e-mailed to an internet Research Panel consisting of members who had purchased fashion products or visited fashion retail sites. 799 questionnaires were analysed using frequency, percentage, exploratory factor analysis. Cronbach's ${\alpha}$, stepwise regression analysis utilizing SPSS 10.0. The service perception dimensions of fashion retail sites had reliability, convenience, incentive, responsiveness and tangibility. Online fashion product perception dimensions were product variety and product value. Consumer satisfaction was influenced by reliability, product variety, product value, convenience, incentive and responsiveness. Consumer satisfaction had a direct impact on purchasing behavioral intentions of fashion retail sites.

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인터넷 포털 사이트에 대한 사용자 평가측정 도구의 개발 (Developing a Measurement Scale for User Evaluations of Internet Portal Sites)

  • 김현경;이문규;김해룡
    • 한국전자거래학회지
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    • 제6권3호
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    • pp.127-148
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    • 2001
  • As the Internet service is expanding rapidly, portal sites, a gateway tn the net, are attracting increasing attention these days. As the Internet service has expanded rapidly, so has the interest for portal sites,, which serve as a gateway to the net. Despite the tendency, however, research on a measure by which to evaluate the quality of portal sites or development of such measures has not been fully pursued. As online services, faced with profitability, are considering 'charge per view', the development of a set of quality evaluation measures for portal services will prove to become a valuable instrument in constructing competitive strategies that are vital for survival and growth of a firm. In that regard, this study aims to develop a set of evaluation measures for Internet portal sites by empirically investigating the most common offline measures for quality of services, SERVQUAL, retail SERVQUAL and other evaluation measures for IT-related online services. Moreover, the study offers the strategic implications of the defined measures.

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국내 건강정보 웹사이트의 신뢰성과 만족도 현황분석 (The Analyses of Confidence and Satisfaction for Domestic Health Information Web-Sites)

  • 우영운;조경원
    • 한국콘텐츠학회:학술대회논문집
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    • 한국콘텐츠학회 2006년도 추계 종합학술대회 논문집
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    • pp.426-429
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    • 2006
  • 국내에서 건강 소비자들을 대상으로 건강정보를 제공하는 웹사이트들 중 순위가 높은 18개 웹사이트를 선정하여 각 웹사이트의 건강정보 신뢰도와 만족도에 대한 현황을 분석하였다. 선택된 18개 사이트는 방문자의 수와 트래픽 정보 등을 이용하여 웹사이트의 순위를 평가하는 전문 기관의 순위 정보에 의해 선택되었다. 각 웹사이트에서 제공되는 건강 정보의 신뢰도와 만족도 현황을 파악하기 위하여 19가지의 평가 항목에 대한 충족 정도와 5가지 중요 요소의 유무에 대한 현황을 분석하였다. 이를 통하여 국내의 대표적인 건강정보 웹사이트들에 대한 신뢰성과 만족도 측면에서의 현황을 파악할 수 있었으며 평가 결과를 활용하기 위한 방안을 제시하였다.

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Contents and Patent Map Analysis on the Internet Sites for Statistical Information

  • Cho, Kwang-Hyun;Park, Hee-Chang
    • Journal of the Korean Data and Information Science Society
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    • 제17권2호
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    • pp.411-420
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    • 2006
  • There are many statistical information sites as the use of internet is increased quickly in recent years. In this paper, we explore and analyze internet sites for statistical information such as statistical survey system, education, database, and terminology. And then we classify these sites to apply statistical information to some particular spheres easily. Also, we analyze the patent map for domestic patents of statistical information. In so doing, the result of this study aims at enhancing our understanding of internet sites for statistical information.

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A Method for Identifying Splice Sites and Translation Start Sites in Human Genomic Sequences

  • Kim, Ki-Bong;Park, Kie-Jung;Kong, Eun-Bae
    • BMB Reports
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    • 제35권5호
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    • pp.513-517
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    • 2002
  • We describe a new method for identifying the sequences that signal the start of translation, and the boundaries between exons and introns (donor and acceptor sites) in human mRNA. According to the mandatory keyword, ORGANISM, and feature key, CDS, a large set of standard data for each signal site was extracted from the ASCII flat file, gbpri.seq, in the GenBank release 108.0. This was used to generate the scoring matrices, which summarize the sequence information for each signal site. The scoring matrices take into account the independent nucleotide frequencies between adjacent bases in each position within the signal site regions, and the relative weight on each nucleotide in proportion to their probabilities in the known signal sites. Using a scoring scheme that is based on the nucleotide scoring matrices, the method has great sensitivity and specificity when used to locate signals in uncharacterized human genomic DNA. These matrices are especially effective at distinguishing true and false sites.