• 제목/요약/키워드: judgement

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와이블 분포함수를 이용한 트래킹 현상의 가속열화 (Accelerated Aging of Tracking Phenomena Using Weibull Distribution)

  • 임장섭
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 Techno-Fair 및 추계학술대회 논문집 전기물성,응용부문
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    • pp.137-138
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    • 2008
  • In this paper, the statistical judgement using IR camera was discussed and investigated. Acceleration experiments were carried out for the possibility of weibull distribution and then, the acquired data were replaced with quantitative value for safety diagnosis of distribution lines.

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건설기업의 이익률 실태 및 특징 분석에 관한 연구 (Analysis of Construction Contractors' Profit Level)

  • 김한수;이현기
    • 한국건설관리학회논문집
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    • 제9권1호
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    • pp.167-175
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    • 2008
  • 기업 존재의 목적은 정당한 이윤창출을 통해 지속적으로 성장 발전하는 것이다. 건설기업의 경우도 예외일 수 없다. 그러나 최근 정부의 강력한 부동산 대책이 분양가 상한제와 분양원가 공개로 이어지는 과정에서 건설기업의 '폭리(暴利)'에 대한 시민단체의 주장이 강하게 대두되어 왔다. 한 산업 또는 기업의 적정 이윤 또는 폭리 수준을 계량적인 수치로 정의한다는 것은 사실상 불가능하다. 본 연구의 목적은 국내 건설기업의 이윤 현황을 다양한 이익률 관점에서 조명하고 이를 타(他) 산업분야와 비교 분석하여 국내 건설기업의 이익률 실태와 특징을 도출하는데 있다.

성 관련 의복단서와 성 역할 정체감이 대인지각에 미치는 영향 -여대생을 중심으로- (Some Effects of Sex-linked Clothing Cue and Gender Schema on the Perception of Others -Research about student of Women s University-)

  • 이미현;임숙자
    • 복식문화연구
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    • 제4권3호
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    • pp.325-336
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    • 1996
  • The main purpose of this study was to find the roles of sex related clothes. The result of the study showed that he effects of sex related clothes were vast and strong. 1. It appeared that sex related clothes affected the wearer's outside aspects and also inferred the wearer's inside characteristics. Subjects judged the wearer's sex by sex related clothes, and confidence in judgement about the wear's sex also appeared stronger when cue of sex related clothes is more clear than being ambiguous. Judging the model's impression when subjects evaluated other's appearance and personality ,clothes affected it and clothes also had a strong impact when subject inferred others's characteristics such as ability and activity. Among the three kinds of sex related cue like men's clothes, women's clothes and ambiguous clothes, when a model wore men's clothes, he mode's impression judged by the subjects was most favorable and positive. But respondents sex role identity appeared that it didn't affected the judgement of the wearer's sex, evaluation and inference of wearer's characteristics. But this result didn't match with the gender schema theory.

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단위유량도법에 의한 소유역의 계획홍수량 결정 (A Determination of Design Flood for a small Basin by Unit Hydrograph Method)

  • 윤용남;침순보
    • 물과 미래
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    • 제9권2호
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    • pp.76-86
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    • 1976
  • The 30-year design flood hydrograph for the Musim Representative Basin, one of the study basins of the International Hydrological Program, is synthesized by the method of unit hydrograph. The theory of unit hydrograph has been well known for a long time. However, the synthesis of flood hydrograph by this method for a basin with insufficient hydrologic data is not an easy task and hence, assumptions and engineering judgement must be exercized. In this paper, the problems often encountered in applying the unit hydrograph method are exposed and solved in detail based on the theory and rational judgement. The probability rainfall for Cheonju Station is transposed to the Musim Basin since it has not been analyzed due to short period of rainfall record. The duration of design rainfall was estimated based on the time of concentration for the watershed. The effective rainfall was determined from the design rainfall using the SCS method which is commonly used for a small basin. The spatial distribution of significant storms was expressed as a dimensionless rainfall mass curve and hence, it was possible to determine the hyetograph of effective design storm. To synthesize the direct runoff hydrograph the 15-min. unit hydrograph was derived by the S-Curve method from the 1-hr unit hydrograph which was obtained from the observed rainfall and runoff data, and then it was applied to the design hyetograph. The exsisting maximum groundwater depletion curve was derived by the base flow seperation. Hence, the design flood hydrograph was obtained by superimposing the groundwater depletion curve to the computed direct runoff hydrograph resulting from the design storm.

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감성 만족도의 정량화를 위한 퍼지 소속 함수 개발 (Development of Fuzzy Membership Function for Emotional Satisfaction Quantification)

  • 박준석;명노해
    • 대한인간공학회지
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    • 제23권2호
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    • pp.37-54
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    • 2004
  • Fuzzy theory provides an intelligence treatment model for judgement about information when it needs a solution or a decision making about vague problems. Therefore, fuzzy theory is used for appropriate evaluation and decision on obscure information as human's emotion in human factors, In previous study, fuzzy membership function is defined for judgement infOlmation as human's emotion then ultimate results are deducted through fuzzy inference model. This method uses general CWTent through literature review or max, min and average as representative statics value about considering variables. But, this method makes away with nonlinear's or inegular's factors of human sensibility. Accordingly, application of this method leads to considerable loss of information in the ultimate evaluation. For that reason, this method has a limitation in objective evaluation of human factors. So, this study focuses on development of fuzzy membership function, which evaluates human's emotion or feeling accurately and objectively. We used the regression analysis and reasoned a fuzzy membership function about the relation of the variables. Then we verified the adequacy with the reliability through the experiment after this.

상습 지체구간 선정을 위한 Percentile 속도의 활용 (Application of Percentile Speed for Appraisal of Road Section with Recurring Congestion)

  • 김형곤;이기영;이숭봉;장명순
    • 한국도로학회논문집
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    • 제16권5호
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    • pp.165-171
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    • 2014
  • PURPOSES : The objective of this study is to find Percentile Speed($V_p$) for Appraisal of Road Section with Recurring Congestion. METHODS : Percentile Speed($V_p$) is determined by correlation analysis of CSI that proposed existing literature. and CSI(Consistency Service Index) is a index that subtract service fail frequency from 100 points, and service fail is defined as traffic situation is driving less than 80kph speed. In this study, We analyzed the highest correlation percentile speed associated with CSI. This speed is chosen as a delay decision speed. In order to verifying reliability, it performed a comparison with the previous method. RESULTS : As a result, 30 percentile speed($V_{30}$) was decided as index speed for judgement of recurring congestion section, and through comparison with existing methods, we demonstrated that 30 percentile speed can be useful for judgement of recurring congestion section. CONCLUSIONS : This method to Determine recurring congestion section using the percentile speed($V_{30}$) was proposed for the first time in this paper. This method can be applicated more quickly and easily than existing method for determining of recurring delay section.

소프트웨어 품질평가를 위한 정성적 선호이론의 적용 (An Application of Qualitative Preference to Software Quality Evaluation)

  • 이종무;정호원
    • 한국경영과학회지
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    • 제25권3호
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    • pp.109-124
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    • 2000
  • For rational human value judgement and evaluation, provision of clear evaluation data, objective value judgement criteria, and properly generalized methods are required. For instance, this is true for software quality evaluation, and the measure of software quality and the weighting method of evaluation target directly affect final decisions. However it is not easy to find a generalized method for the software quality evaluation or product selection, because of its complex characteristics. In this paper, we apply the qualitative preference method based on quantitative belief functions to find a general weighing method for the software quality evaluation. In particular, the qualitative preference method, in which the differentiated preference expression is possible, is conceptually expanded for general applications in future. For this purpose, we hierarchically differentiate the strong preference relation from the weak preference relation, and show an example of quantification of software quality evaluation on different applications, by comparing the qualitative preference method with AHP. We believe that the application domain of this method is not limited to the software quality evaluation and it is very useful to apply this results to other SE areas, e.g., metric selection with different views and riority determination of practices to be assessed in the SPICE.

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AC 전류에 의해 용융된 나전선의 발열 특성 (The Heating Characteristics of Electric Bare Wire Melted by AC Current)

  • 송길목;최충석;김향곤;김영석
    • 조명전기설비학회논문지
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    • 제20권1호
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    • pp.77-84
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    • 2006
  • 이 논문은 화재원인판정에 있어서, 교류전류에 의해 용융된 나전선의 발열특성을 기술한 것이다. 실험을 위해 동전선은 1.2[mm], 1.6[mm], 2.0[mm]의 직경인 것을 준비하였다. 단면분석을 통해 용단전류가 전선에 공급되었을 때, 수지상 조직은 약40[$^{\circ}$] 또는 60[$^{\circ}$]의 각도로 성장하는 것을 확인하였다. 용단전류가 커지면 커질수록 수지상 조직의 성장각도는 줄어들었다. 그것은 주상조직과 유사하다는 것을 확인하였다.

존재론적 층위에서 건축의 제주성 (The Ontological Thinking of Authenticity in Jeju Architecture)

  • 김형준
    • 한국산학기술학회논문지
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    • 제13권3호
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    • pp.1099-1104
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    • 2012
  • 이 논문에서는 제주건축이 가지고 있는 지역성에 대해 살펴보고, 건축개념으로서 건축의 제주성이 가진 가능성에 대해 연구하였다. 이러한 가능성을 탐구하기 위해 먼저 제주건축에서 논의되고 있는 지역성에 대해 정리하고, 이 논의들이 가진 한계를 살펴보았으며, 이후 칸트의 판단력 비판과 루이스 칸의 건축 존재론을 통해 건축의 제주성에 대한 새로운 층위를 분석하였다. 이 분석을 토대로 제주의 현대건축이 지향해야할 지역성의 토대를 정리하여 제시하였다.

로지스틱 회귀식을 이용한 대형산불판정 모형 개발 (Development of Large Fire Judgement Model Using Logistic Regression Equation)

  • 이병두;김경하
    • 한국산림과학회지
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    • 제102권3호
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    • pp.415-419
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    • 2013
  • 산불로 인한 피해를 최소화하기 위해서는 대형산불 가능성이 있는 산불에 대해 초기 단계에서부터 진화자원을 집중해야 한다. 따라서 본 연구에서는 산불 발생 초기에 대형화 여부를 판정할 수 있는 모형을 개발하고자 하였다. 이를 위해 132건의 산불에 대해 피해 규모를 현장조사하고, 발화지를 중심으로 100 ha 이내의 기상, 지형, 연료인자를 분석하였다. 그리고 분석 내용을 로지스틱 회귀식을 적용한 결과, 산불은 온도, 풍속, 무강우일수, 경사변이, 산림면적이 높을수록 대형화되었으며, 고도는 낮을수록 그 확률이 높았다. 본 모형을 사용하면 산불 발생 초기에 대형화 여부를 판단할 수 있으므로, 초기 진화자원의 규모와 지역 주민 대피 결정에 근거 자료로 활용될 수 있다.