• Title/Summary/Keyword: CREAT

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

  • Song, Jong Soon;Kim, Hyun-Min;Lee, Sang-Heon
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.12 no.2
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    • pp.153-164
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    • 2014
  • Currently, there are many programs which are now being developed or already developed to predict radionuclide and corrosion product at the stage of designing NPP. However, since there are not many developments in evaluating quantity of activation corrosion products occurring when disassembling a nuclear power plant there exist some difficulties in calculating accurately. In order to evaluate activation products inventory for the research of effect of neutron activation in the reactor vessel, component of nuclear reactor and adjacent structures, it should be evaluated by using operation history of nuclear reactor, material composition of structure and average neutron flux in every field representing fixed structure of nuclear reactor. In this study, CORA, PACTOLE, CRUDSIM, CREAT and ACE codes are analyzed to predict the quantity of radionuclide and corrosion product of primary reactor which is used at the stage of designing. As a future study, the accuracy in calculating the quantity of product corrosion can be increase by finding out the possibility of use and improvement for evaluation of the decontamination.

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

  • Park, Hong-Cheol;Cho, Keun-Ja
    • The Korean Journal of Emergency Medical Services
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    • v.19 no.1
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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.

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

  • 윤세형
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.10 no.2
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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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A study on the spot location strategy for entry overseas of korea company (한국기업의 해외진출을 위한 현지화 전략에 관한 연구)

  • Koh, Hwan-Taek
    • Korean Business Review
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    • v.21 no.2
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    • pp.79-97
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    • 2008
  • Between different organization, they creat competitiveness from the result of their own manufacturing and sales activity especially the manufacturing companies. This paper will focus on the spot location strategy of korea company which have oversea business and find out the relationship between the spot location strategy and the resources or competitive ability of this kind of companies. Each company has their own way to realize their overseas business expansion and creat their competitiveness in their international business. At the same time, they also have their own way to share their resources and their competitive ability. All this 3 kinds of strategies are important and the combination of them is more important for companies that have overseas business. To examine the relationship between the spot location, the resources and the competitive ability strategies, this paper developed two hypotheses and tested them. To test the hypotheses, this paper conducted a mail survey to operations managers of overseas companies in Korea and collected 102 usable responses. To simplify the responses, this paper used cluster analysis and found 3groups of spot location strategy, 2 groups of resources strategy and 2 groups of competitive abilities strategy. This paper also investigated interdependence and performance differences between these groups. From the analyses, this paper found the following results: It is important for a overseas company to make their spot location strategy to be fit for their resources strategy and competitive abilities strategy and a perfect spot location strategy can make the company gain a advantage of high level in most of time.

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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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    • v.19 no.3
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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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A Study on the Role of Children's Librarian in the 21st Century (정보사회에 있어서 어린이도서관인의 위상)

  • Kim Hyo-Jeong
    • Journal of the Korean Society for Library and Information Science
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    • v.26
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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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A study on the collected information of the industrial accident (산업 재해의 통계에 관한 연구)

  • 이상도;김정동
    • Proceedings of the ESK Conference
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    • 1995.10a
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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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The Study of Korea Dress and Personal Adornments during 1980's (1980년대 한국 여성복식의 현상 연구 -1980년부터 1992년을 중심으로-)

  • 김서연;박길순
    • The Research Journal of the Costume Culture
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    • v.2 no.2
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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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An Experimental Study on the Strength Development of Rubber Mortar (Rubber Mortar의 강도성상에 관한 실험적 연구)

  • 손종규;김재욱;임유묵;정환욱;문장수;정상진
    • Proceedings of the Korea Concrete Institute Conference
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    • 1996.04a
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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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The Study on the Modulor as Harmonious Measure by Le Corbusier (꼬르뷰제의 조화시스템인 모듈러 연구)

  • Lee, Young-Han
    • Journal of architectural history
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    • v.6 no.3 s.13
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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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