• 제목/요약/키워드: CREAT

검색결과 46건 처리시간 0.154초

PWR 1차계통내 해체 방사성선원항 평가방법에 관한 연구 (A Study on Radioactive Source-term Assessment Method for Decommissioning PWR Primary System)

  • 송종순;김현민;이상헌
    • 방사성폐기물학회지
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    • 제12권2호
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    • pp.153-164
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    • 2014
  • 현재 전 세계적으로 설계단계에서 부식 생성물과 방사성 핵종의 양을 예측하는 프로그램에 대해서는 개발되거나 개발중인 프로그램이 다양하다. 그러나 원자력 발전소 해체 시 발생하는 방사화 부식생성물의 양을 평가하는 코드에 대한 개발은 이루어지지 않고 있어 정확한 산정에 어려움이 있다. 원자로 용기, 원자로 구성품 및 인접 구조물에서의 특성 원소의 중성자 조사로 인한 방사화재고량을 평가하기 위해서는 원자로의 고정된 구조물을 대표하는 모든 영역에서의 평균 중성자속과 구조물의 물질조성 및 원자로 운전이력 등을 이용하여 평가해야 한다. 본 논문에서는 설계단계에서 사용되는 1차 계통의 부식생성물과 방사성 핵종의 양을 예측하는 CORA, PACTOLE, CRUDSIM, CREAT 및 ACE 코드를 분석하였다. 향후 연구에서는 제염해체 폐기물 발생량 평가에 대한 사용가능성과 개선점을 찾아 부식생성물량 산정에 정확성을 높이고자 한다.

스쿠버 다이버의 안전지식, 안전수칙 준수와 응급상황 대처능력의 관계 (Correlation among knowledge of safety, compliance with safety rules, and ability to cope with emergency situations of scuba divers)

  • 박홍철;조근자
    • 한국응급구조학회지
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    • 제19권1호
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    • pp.35-49
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    • 2015
  • Purpose: This study aimed to identify the current status and correlations among scuba divers' knowledge of safety, compliance with safety rules, and ability to cope with emergency situations. Methods: There were 317 study subjects. Data were collected between September 21, 2012 and September 7, 2013, and analyzed using SPSS software version 21.0. Results: Of the participants, 89.3% wanted to be educated in emergency care, while 69.4% indicated that preparedness in emergency situations for divers is insufficient. 78.5% suggested a need to creat a legal standard for the prevention of accidents. The average scores among the participants showed 3.22 points for knowledge of safety, 3.09 points for compliance with safety rules, and 2.91 points for ability to cope with accidents and emergency situations, with strong correlation among them. The lower license level they had, the lower score they indicated. Conclusion: We suggest there is a need to strengthen systematic educations on knowledge of safety, compliance with safety rules, and the ability to cope with emergency situations and emergency care at the open water level. In addition, there is a need to creat legal standards to consolidate the effects of these changes.

Polythylene glycol을 이용한 모의적 토양수분 조절방법이 목초의 발아에 미치는 영향과 유효성 (Effects of Drought by Polythylene glycol Solution on Seven Grasses Germination)

  • 윤세형
    • 한국초지조사료학회지
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    • 제10권2호
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    • pp.70-76
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    • 1990
  • The present study elucidates the effect of drught by polyethylene glycol solution on germination of five temperate and two tropical grasses. The results obtained can be summarized as follows: 1. The germination percentage of seven grasses decreased with increasing concentration of polythylene glycol. 2. The germination pattern hi higher concentration of polyethylene glycol showed similar trends to the emergence pattern under drought stress in soil condition. 3. The treatment of 30g is most useful at this study. Therefore, polythlene glycol was the appropriate to creat the drought condition of soil.

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한국기업의 해외진출을 위한 현지화 전략에 관한 연구 (A study on the spot location strategy for entry overseas of korea company)

  • 고환택
    • 산학경영연구
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    • 제21권2호
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    • pp.79-97
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    • 2008
  • 모든 기업은 기업 자체의 실현 목적, 경영 확산과 기업 경쟁력을 강화하는 방식이 있다. 동시에 기업은 기업자체의 고유한 자원분배 및 경쟁력 제고에 관한 전략들을 가지고 있다. 그 중에서도 기업의 현지화 전략, 경쟁요소전략, 능력전략이 매우 중요한 것으로 나타났다. 또한 전략간 상호작용과 결합은 긍정적인 결과로 나타났다. 본 연구에서는 3가지 경영전략간의 관계를 점검하고 102개 한국 기업을 선정하여 3가지 경영전략의 특징 및 영향력에 대하여 비교 연구함으로써 기업의 현지화전략의 발전을 위하여 새로운 방향을 제시하였다.

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Application of k-means Clustering for Association Rule Using Measure of Association

  • Lee, Keun-Woo;Park, Hee-Chang
    • Journal of the Korean Data and Information Science Society
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    • 제19권3호
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    • pp.925-936
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    • 2008
  • An association rule mining finds the relation among each items in massive volume database. In generating association rules, the researcher specifies the measurements randomly such as support, confidence and lift, and produces the rules. The rule is not produced if it is not suitable to the one any condition which is given value. For example, in case of a little small one than the value which a confidence value is specified but a support and lift's value is very high, this rule is meaningful rule. But association rule mining can not produce the meaningful rules in this case because it is not suitable to a given condition. Consequently, we creat insignificant error which is not selected to the meaningful rules. In this paper, we suggest clustering technique to association rule measures for finding effective association rules using measure of association.

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정보사회에 있어서 어린이도서관인의 위상 (A Study on the Role of Children's Librarian in the 21st Century)

  • 김효정
    • 한국문헌정보학회지
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    • 제26권
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    • pp.35-51
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    • 1994
  • This article presents the role of children's librarian in the age of information. Preparing the 21st century, there should have been to identify the humanities of health, independent, creative, and moral fact with educating children in future Korea. Children's library should service all the children to improve the information skill and technology, to creat a whole person with high order intellectual thinking skill for the consumer, the voter and the leader of the next generation. It has been identified that the children's librarian should playas a mediator of literacy and culture of children, a creating counselor of personality, a negotiator of recoginating all knowledge, and a leader of the information skill or communication skill in the children education at the 21st century.

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산업 재해의 통계에 관한 연구 (A study on the collected information of the industrial accident)

  • 이상도;김정동
    • 대한인간공학회:학술대회논문집
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    • 대한인간공학회 1995년도 추계학술대회논문집
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    • pp.114-124
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    • 1995
  • The production activity by human is accompanied by various accidents, resulting in human and property loss. If information on these industrial accident can be collected, organized and analyzed for a period of time and be used in the decision-making process for the purpose of preventing industriar accident, we will be able to get rid of industriar accident and prevent human and property loss and creat a pleasant industrial atmosphere. In order to achieve this goal, the collected information should be accurate, and trusted in the work place or govemement agency the informantion is being utilized. This research analyzed the problem in our nation's industrial accident statistics and estimated the number of accidents that are occuring and suggested improvement measures so that the industrial accident statistics can be calculated arately.

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1980년대 한국 여성복식의 현상 연구 -1980년부터 1992년을 중심으로- (The Study of Korea Dress and Personal Adornments during 1980's)

  • 김서연;박길순
    • 복식문화연구
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    • 제2권2호
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    • pp.225-245
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    • 1994
  • The purpose of this study is to survey of dress and personal adornments of young Korean people from 1980 to 1992. This study is applied of the thoughts of culture of B. Malinowski and related to social and cultual background. The materials of clothes have had higher quality and the colors varied. And sports wear has popularized even for a daywear as people have concerned of the health a lot. Big look and unisex mode in casual wear have been also popular. Underwears and jeans became fashionable. Paints and skirts have been getting shorter and they reached to the mini length. And reformed-Korean traditional clothes has developed. Ecology has been appeared as a whole in fashion. The dress and personal adornments gave satisfaction to modern people who pursuit of healthy ad convenience of life and want to creat the individuality and intend to develop of traditional culture and want to express themselves as perfecdtion of self.

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Rubber Mortar의 강도성상에 관한 실험적 연구 (An Experimental Study on the Strength Development of Rubber Mortar)

  • 손종규;김재욱;임유묵;정환욱;문장수;정상진
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 1996년도 봄 학술발표회 논문집
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    • pp.30-35
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    • 1996
  • Accumulations of worn-out automobile tires creat fire and health hazards. As a possible solution to the problem of scrap-tire disposal, an experimental study was conducted to examine the potential of using tire chips as aggregate in rubber mortar. This paper examines strength and toughness properties of rubber mortar in which different amounts of rubber-tire particles of several sizes were used as aggregate. The rubber mortar mixtures exhibited lower compressive, bending, tensile than did normal mortar. However, these mixtures did not demonstrate brittle failure, but rather a ductile, plastic failure, and had the ability to absorb a large amount of plastic energy under compressive loads.

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꼬르뷰제의 조화시스템인 모듈러 연구 (The Study on the Modulor as Harmonious Measure by Le Corbusier)

  • 이영한
    • 건축역사연구
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    • 제6권3호
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    • pp.145-154
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    • 1997
  • Le Corbusier had developed the Modulor replacing the Regulating Lines in the 1930's and 1940's. The lines can not produce lyrical ideas or creational concept but make plastic dimension pure only to keep in balance. First, the Grid of Proportions was developed and then the Modulor 1. The Modulor originated in one square, double square, the two golden means added or subtracted, the place of the right angle, human dimension, the Fibonacci series and divided Red series and Blue series. He developed the Modulor 2 for a reconciliation between the foot-and-inch system and the metre. As Corbusier devoted himself to a social and industrial problem, he was sure that a transcendental universality be in cosmos including a human being. His dream was to creat a orderly and harmonious utopia. What intrinsic harmony between Cosmos, nature and a human being be realized by mathematic order was the reason he hinted himself to the proportion.

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