• 제목/요약/키워드: Growing factor

검색결과 995건 처리시간 0.03초

Application of CALUX Bioassay for Determining Dioxin Toxicity Equivalents

  • Joung, Ki-Eun
    • 한국환경독성학회:학술대회논문집
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    • 한국환경독성학회 2003년도 추계국제학술대회
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    • pp.9-9
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    • 2003
  • There are growing concerns about human health effects of dioxin and dioxin like compounds such as polychlorinated dibenzo-p-dioxins (PCDDS), polychlorinated dibenzofurans (PCDFs), and polychlorinated biphenyls (PCBs), Earlier studies recognized that 2,3,7,8-tetrachloro dibenzo-p-dioxin (TCDD) and structually related dioxin like compounds invoke a number of common toxic responses that are mediated through a high-affinity cytosolic receptor protein, the AhR. Based on studies that Indicate th pivotal role of AhR in mediating most, if not all, of the dioxin toxicity, TCDD equivalency factor (TEF) approach was developed. This approach allowed the expression of toxic potential of a complex mixture as one integrated parameter, the toxic equivalency (TEQ) value.

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Kano모형을 이용한 물류서비스품질의 분류 (The Classification of Logistics Service Quality through the utilization of Kano Model)

  • 강기두;안승호;전홍식;이우영
    • 품질경영학회지
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    • 제37권2호
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    • pp.32-45
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    • 2009
  • The importance of quality logistics service has kept growing in fierce competitions. Accordingly, many have tried to assess the logistics service quality and attempted to propose the strategic ways to manage it. However, it has been known that service quality is a multi-dimensional construct and not all quality attributed are viewed as equally important to customers. In other words, each quality attribute has different implications for customer satisfaction. To this respect, the current study attempted to identify the satisfying/dissatisfying quality factor through the Kana approach. In so doing, several satisfying and dissatisfying quality factors in logistics service quality were identified. Further, several academic and practical implications for logistics service quality were proposed.

KS-SQI를 이용한 고객만족도와 기업재무성과간의 관계에 연구 (A Study on Relationship between Customer Satisfaction Measure and Financial Performance)

  • 송상민;조재립
    • 한국품질경영학회:학술대회논문집
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    • 한국품질경영학회 2009년도 추계학술대회
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    • pp.109-114
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    • 2009
  • Recently, there has been growing interest in the financial and economic effectiveness of service quality and customer satisfaction. It means that the final goal of customer satisfaction is the maximization with firms' financial performance, enterprise could survive through the creation of continuous financial performance. Companies are working in various ways to identify the direct relationship of service quality and customer satisfaction with financial and economic effectiveness in order to justify and validate customer satisfaction management. In this study, the influence of customer satisfaction on the financial performance is examined. Also, we have analyzed customer satisfaction by comparing financial outcome of each industry Customer satisfaction index, the key non-financial performance measure has significant association with firms' financial performance index. Moreover, high customer satisfaction has a competitive advantage, so it can be the key success factor of firm's financial performance improvement.

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U57 풍력발전기 전력품질 실증연구 (Study of Power Quality Measurement U57 Windturbine)

  • 이병철;박희철;황진수;류지윤
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2008년도 추계학술대회 논문집
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    • pp.310-314
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    • 2008
  • The exploitation of the wind energy resource is a rapidly growing area world-wide. The number of installed units is continuously increasing, and it is important to respect and to deal with the impact of wind turbine. This paper addresses the power quality characteristics of U57 Wind Turbine. 750kW gearless type wind turbine for low wind speed, named U57, is developed by UNISON. The power quality measurement system consists of measuring WTG output current, line-to line voltage and wind speed signal. With using measured data, power quality measurement is evaluated about maximum power, reactive power, voltage fluctuation, harmonics according to IEC 61400-21.

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인코넬 합금의 열처리에 따른 입계 탄화물 석출 및 입계응력부식 거동 (The Effects of Heat Treatment on Intergranular Carbide Precipitations and Intergranular Stress Corrosion Cracking of Inconel alloy)

  • 맹완영;남태운
    • 열처리공학회지
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    • 제10권4호
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    • pp.219-231
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    • 1997
  • Inconel alloys used as nuclear power plant components have experienced intergranular stress corrosion cracking problems inspite of their good corrosion characteristics. In order to investigate the effects of heat treatments on carbide precipitation and intergranular stress corrosion cracking(IGSCC) in Inconel alloys, DSC(Differential Scanning Calorimeter), TEM, EDXS and static potential corrosion tests were carried out. Thermal treatment at $750^{\circ}C$ for 15hours in Inconel alloys increased the density of intergranular carbide. The carbides are mainly $Cr_7C_3$ in Inconel 600, and $Cr_{23}C_6$ in Inconel 690. The Cr depletion around grain boundary is not crucial factor on IGSCC. The carbides in grain boundary play an important role as acting dislocation source, and as decreasing stress around growing crack.

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한국외식산업 매출증대에 관한 연구 (패밀리 레스토랑 고객만족도 중심으로) (A Study of to increase Selling for Korea′s Dininng-out industry - In center of cunstomer′s content of family restaruant-)

  • 진양호;강병관
    • 한국조리학회지
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    • 제5권1호
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    • pp.5-24
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    • 1999
  • The Dining-out industry should catch up with the rapid change of economic environment actively and achieve the objectives of the company. Therefore, the management of Dining-out industry should be focused on the customers' changeable behavior, which is the center of economic environment, and make customers satisfied as the first factor. The purpose of this study is to find out the relation between the customers' content and the growing of selling in Dining-out industry, to compare with the merit and the demerit of the Dining-out industry objectively, and finally to contribute the increasing of selling in Dining-out industry.

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기관 카뉼러 발거곤란증 9례 (9 Cases of Difficulty Decannulation)

  • 추연수;안문성;박재훈;김춘길;주양자
    • 대한기관식도과학회:학술대회논문집
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    • 대한기관식도과학회 1979년도 제13차 학술대회 연제순서 및 초록
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    • pp.9.4-9
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    • 1979
  • 기관 절개술 후 생기는 기관 카뉼러 발거 곤란증은 수술 후 생길 수 있는 합병증으로서, 기관 벽의 만곡, 육아의 발생, 성문하점막의 종장, 반흔 협착, 관능성 협착등이 원인이 될 수 있다. 본원에서 지난 수 년간 기관 절개술후 기관 카뉼러 발거 곤란증으로 입원 또는 전과된 9례를 경험하였기에. 이에 문헌 고찰과 더불어 보고하는 바이다.

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Site-Specific Growth of Width-Tailored Graphene Nanoribbons on Insulating Substrates

  • 송우석;김수연;김유석;김성환;이수일;송인경;전철호;박종윤
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2013년도 제44회 동계 정기학술대회 초록집
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    • pp.612-612
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    • 2013
  • The band-gap opening in graphene is a key factor in developing graphene-based field effect transistors. Although graphene is a gapless semimetal, a band-gap opens when graphene is formed into a graphene nanoribbon (GNR). Moreover, the band-gap energy can be manipulated by the width of the GNR. In this study, we propose a site-specific synthesis of a width-tailored GNR directly onto an insulating substrate. Predeposition of a diamond-like carbon nanotemplate onto a SiO2/Si wafer via focused ion beam-assisted chemical vapor deposition is first utilized for growth of the GNR. These results may present a feasible route for growing a width-tailored GNR onto a specific region of an insulating substrate.

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Recreation Ecology and Visitor Carrying Capacity Management: Implications for Protected Areas in East Asia

  • Leung, Yu-Fai;Lee, Ju-Hee
    • The Korean Journal of Ecology
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    • 제26권2호
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    • pp.53-58
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    • 2003
  • Ever-growing recreation, tourism and ecotourism worldwide have become a significant factor of resource degradation in many protected areas. Managers of these areas are increasingly challenged to implement policies, strategies and actions that would protect the resource base while providing quality visitor experience. One major issue in managing protected area visitations is that of carrying capacity, or the question of "how much use is too much\ulcorner". Scientific studies of visitor impacts, often known as recreation ecology, has generated a knowledge base that provides valuable input to the visitor carrying capacity management process adopted by the U.S. National Park Service. This paper aims at (a) providing an overview of recreation ecology research and its application in managing visitor carrying capacity, and (b) examining the relevance of recreation ecology to East Asian protected areas with special reference to the visitor capacity issue.ity issue.

엑셀 매크로를 이용한 절차 중심 통계교육도구 개발 (Development of process-oriented education tool for Statistics with Excel Macro)

  • 최현석;하정철
    • Journal of the Korean Data and Information Science Society
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    • 제22권4호
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    • pp.643-650
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    • 2011
  • 통계에 대한 사회적 관심이 점차 높아져 통계학 교육의 중요성이 대두되고 있지만 대학에서의 통계학 교육은 수리적인 면에 치우쳐 있어 학생들의 관심이 저하되는 것이 사실이다. 흥미로운 학습이 가장 효율적이라는 가정하에 통계학습의 흥미 유발과 이해능력 향상을 위해서는 학습자들이 적극적으로 활용할 수 있는 통계교육도구가 필요하다. 본 논문에서 소개하는 통계교육도구 (PETS)는 엑셀 매크로를 사용하여 개발한 것으로, 결과만 보여주는 것이 아니라 중간과정과 설명들을 함께 나타내어 학습자 스스로 효율적인 통계학습을 할 수 있게 만들었다.