• Title/Summary/Keyword: Clue

검색결과 703건 처리시간 0.025초

오염총량관리제의 시공간적 미래 토지이용 변화분석을 위한 CLUE-S 모델의 적용 및 평가 (Evaluation and Application of CLUE-S Model for Spatio-Temporal Analysis of Future Land use Change in Total Water Pollution Load Management System)

  • 류지철;안기홍;한미덕;황하선;최재완;김용석;임경재
    • 한국물환경학회지
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    • 제30권4호
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    • pp.418-428
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    • 2014
  • The purpose of this study is to predict the spatio-temporal changes in land uses and to evaluate land-based pollutant loads in the future under Total Water Pollution Load Management System using CLUE-S model. For these ends, sensitive parameters of conversion elasticities in CLUE-S model were calibrated and these calibrated parameters of conversion elasticities, level II land cover map of year 2009, and 7 driving factors of land use changes were used in predicting future land uses in 2002 with two scenarios(Scenario 1: non area restriction, Scenario 2: area restriction). This projected land use map of 2020 was used to estimate land-based pollutant loads. It was expected that urban areas will increase in 2020 from both scenarios 1 and 2. In Scenario 1, urban areas are expected to increase within greenbelt areas and deforest would be expected. Under Scenario 2, these phenomena were not expected. Also the results of estimation of BOD and TP pollutant loads, the BOD difference between scenarios 1 and 2 was 719 kg/day in urban areas and TP difference was 17.60 kg/day in urban areas. As shown in this study, it was found that the CLUE-S model can be useful in future pollutant load estimations because of its capability of projecting future land uses considering various socio-economic driving factors and area-restriction factors, compared with conventionally used land use prediction model.

유형적 근거가 지각된 위험 및 총만족에 미치는 영향 (패밀리레스토랑 고객을 대상으로) (Does Tangible Clue influence on Perceived Risk and Overall Satisfaction? : Focused on the Customers at Family Restaurants in South Korea)

  • 윤태환;이강춘;최영준
    • 한국조리학회지
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    • 제21권5호
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    • pp.38-49
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    • 2015
  • 본 연구는 패밀리레스토랑의 유형적 근거가 고객들의 지각된 위험 및 총만족에 미치는 영향을 알아보기 위한 것이었다. 자료 분석을 위하여 CFA와 SEM이 사용되었다. 유형적 근거는 3개의 요인으로, 지각된 위험은 6개의 요인으로 분석되었다. 분석결과, 유형적 근거 1 '물리적 증거'는 금전적 위험(p<0.01), 성과적 위험(p<0.01), 심리적 위험(p<0.001)에 부정적인 영향을 주었다. 유형적 근거 2 '종사원'은 시간적 위험(p<0.001), 성과적 위험(p<0.001), 심리적 위험(p<0.01), 사회적 위험(p<0.001)에 부정적인 영향을 주었다. 한편 유형적 근거 3 '서비스 과정'은 신체적 위험(p<0.01), 시간적 위험(p<0.05), 금전적 위험(p<0.001), 성과적 위험(p<0.01)에 부정적인 영향을 주었다. 그리고 지각된 위험 중에서 시간적 위험(p<0.001), 성과적 위험(p<0.001), 사회적 위험(p<0.001)은 고객의 총만족에 부정적인 영향을 주는 것으로 나타났다. 결국 본 연구의 결과를 통해 유형적 근거는 고객의 위험인지에 유의한 영향을 주었으며 또한 고객은 이에 따라 만족 혹은 불만족을 하는 것으로 나타났다. 따라서 외식기업은 고객의 위험인지를 감소시키는 마케팅 전략으로써 뿐만 아니라 만족을 유도하는 중요한 대안으로써 유형적 근거를 지속적으로 관리할 필요가 있다.

시설재배를 고려한 미래 농지이용 변화와 기후변화가 관개 필요수량에 미치는 영향 평가 (Assessment of Future Agricultural Land Use and Climate Change Impacts on Irrigation Water Requirement Considering Greenhouse Cultivation)

  • 손무빈;한대영;김진욱;신형진;이용관;김성준
    • 한국지리정보학회지
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    • 제23권4호
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    • pp.120-139
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    • 2020
  • 본 연구에서는 CLUE-s(Conversion of Land Use and its Effects at Small regional extent)와 RCP(Representative Concentration Pathway) 4.5 및 8.5 HadGEM3-RA(Hadley Centre Global Environmental Model version 3 Regional Atmosphere)시나리오를 사용하여 미래 농지이용 변화와 기후변화가 관개 필요수량에 미치는 영향을 평가하였다. 논산시(55,517.9ha)의 농지이용 항목으로 논, 밭, 시설재배지를 고려하고 DIROM (Daily Irrigation Reservoir Operation Model)을 이용해 탑정저수지 수혜구역(5,713.3ha)에 대한 관개 필요수량(Irrigation Water Requirement, IWR)을 추정하였다. CLUE-s를 이용한 미래 농지이용 변화를 모의하기 위해 환경부의 2007년, 2013년, 2019년의 토지피복도 6개 항목(수역, 시가지, 논, 밭, 산림, 시설재배지)을 적용하였다. 그 결과, 2100년은 2013년에 비해 논과 밭이 5.0%, 7.6% 감소했으며, 시설재배지는 24.7% 증가하는 것으로 전망되었다. 미래의 농지이용과 기후변화를 모두 고려한 경우의 RCP 4.5 및 RCP 8.5 모두 2090s(2090~2099) IWR은 미래 기후변화만 고려한 경우에 비해 논과 밭에서는 각각 2.1%, 1.0% 감소하고 시설재배지에서는 11.4% 증가하는 것으로 전망되었다.

미등록어의 의미 범주 분석을 이용한 복합명사 분해 (Segmentation of Korean Compound Nouns Using Semantic Category Analysis of Unregistered Nouns)

  • 강유환;서영훈
    • Journal of Information Technology Applications and Management
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    • 제11권4호
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    • pp.95-102
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    • 2004
  • This paper proposes a method of segmenting compound nouns which include unregistered nouns into a correct combination of unit nouns using characteristics of person's names, loanwords, and location names. Korean person's name is generally composed of 3 syllables, only relatively small number of syllables is used as last names, and the second and the third syllables combination is somewhat restrictive. Also many person's names appear with clue words in compound nouns. Most loanwords have one or more syllables which cannot appear in Korean words, or have sequences of syllables different from usual Korean words. Location names are generally used with clue words designating districts in compound nouns. Use of above characteristics to analyze compound nouns not only makes segmentation more accurate, helps natural language systems use semantic categories of those unregistered nouns. Experimental results show that the precision of our method is approximately 98% on average. The precision of human names and loanwords recognition is about 94% and about 92% respectively.

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시각장애아동에게 있어서 진입공간의 의미에 관한 연구 (A research about the meaning of the entry space for the sight-disabled child)

  • 이지연;이호중
    • 한국실내디자인학회논문집
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    • 제38호
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    • pp.192-200
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    • 2003
  • Interactions with the environment do to firm, deny, or challenge the existing knowledge. People who suffer from the loss of the sight have difficulty conceiving the space and the direction as well as walking. In the study, it wanted to reveal that the border that Is provided as a transfer clue has psychological and functional meaning to the sight-disabled people under given circumstances. It suggests that there is another space among the physical borders and analyzes the utilization clue in the entry space, which is the first starting point that can transfer, and obstacle factors which may happen at that point. And, it also wanted to present the surrounding environmental improvement ways for walking which is smooth and confident based on them.

계수작업시 사상관련전위 및 작업성능에 미치는 조명조건의 영향 (Effects of Illuminating Condition on ERP and Work Performance during a Counting Task)

  • 임현교
    • 한국안전학회지
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    • 제15권1호
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    • pp.167-175
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    • 2000
  • Work performance and human error are complicated phenomena so that it is very difficult to grasp the true nature of them. However, Event Related Potential (ERP) may give a clue to them because human brain reflects diverse psychophysiological process. In the present study, the possibility of ERP application to the ergonomic area was evaluated in view of grasping error symptoms. For that purpose, the subjects were asked to count specific characters in a random character matrix on a computer monitor, and their ERP was compared with their performance data. Based upon the results, the amplitude of P300 was not so high as that in the case of the Odd Ball tasks, correct response corresponded with stable ERP with high P300 amplitude whereas wrong response did with unstable, fluctuating ERP with low P300 amplitude. Those results coincided with the work performance, and it was concluded that 3-wave fluorescent with illumination level of 800 lux would be recommendable for the counting task in concern. Conclusively, ERP including P300 might supply an objective clue to the problem of human errors in cognitive process.

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The Gringorten estimator revisited

  • Cook, Nicholas John;Harris, Raymond Ian
    • Wind and Structures
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    • 제16권4호
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    • pp.355-372
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    • 2013
  • The Gringorten estimator has been extensively used in extreme value analysis of wind speed records to obtain unbiased estimates of design wind speeds. This paper reviews the derivation of the Gringorten estimator for the mean plotting position of extremes drawn from parents of the exponential type and demonstrates how it eliminates most of the bias caused by the classical Weibull estimator. It is shown that the coefficients in the Gringorten estimator are the asymptotic values for infinite sample sizes, whereas the estimator is most often used for small sample sizes. The principles used by Gringorten are used to derive a new Consistent Linear Unbiased Estimator (CLUE) for the mean plotting positions for the Fisher Tippett Type 1, Exponential and Weibull distributions and for the associated standard deviations. Analytical and Bootstrap methods are used to calibrate the bias error in each of the estimators and to show that the CLUE are accurate to better than 1%.

ORF Miner: a Web-based ORF Search Tool

  • Park, Sin-Gi;Kim, Ki-Bong
    • Genomics & Informatics
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    • 제7권4호
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    • pp.217-219
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    • 2009
  • The primary clue for locating protein-coding regions is the open reading frame and the determination of ORFs (Open Reading Frames) is the first step toward the gene prediction, especially for prokaryotes. In this respect, we have developed a web-based ORF search tool called ORF Miner. The ORF Miner is a graphical analysis utility which determines all possible open reading frames of a selectable minimum size in an input sequence. This tool identifies all open reading frames using alternative genetic codes as well as the standard one and reports a list of ORFs with corresponding deduced amino acid sequences. The ORF Miner can be employed for sequence annotation and give a crucial clue to determination of actual protein-coding regions.