• 제목/요약/키워드: demonstration

검색결과 2,101건 처리시간 0.028초

2단계 신뢰성 실증시험의 통계적 설계 (Statistical Design of Two-Stage Reliability Demonstration Tests)

  • 서순근
    • 품질경영학회지
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    • 제39권2호
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    • pp.313-319
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    • 2011
  • In design verification and process validation stages, reliability demonstration tests(RDT's) are common practice in industry, A new two-stage RDT that is known to be more efficient than a corresponding single-stage one in terms of expected test duration for Weibull distribution is proposed. Zero or one failure two-stage plans to minimize expected test duration under Type I and hybrid censoring subject to satisfying consumer's risk at a specified reliability target are developed and a numerical example is provided to illustrate the proposed two-stage RDT plans and compared with other one- and two-stage plans.

건식분말화 장치설계를 위한 $U_3O_8$ 분말의 미세입자 유동해석 (Analysis on the flow of $U_3O_8$ powder for design of the voloxidizer)

  • 김영환;정재후;홍동희;윤지섭
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2005년도 춘계학술대회 논문집
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    • pp.454-457
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    • 2005
  • Voloxidizer for hot cell demonstration that handle spend fuel of high radiation virulence in limited space should become a small size and not scatter in its exit. This study determine optimum velocity of $U_3O_8$ using Newton-Raphson Method. We have conducted fortran programing on the Newton-Raphson Method, obtained a theory results and, predicted optimum velocity on the particle size distribution of $U_3O_8$. We have conducted experimentation using acrylic experimental device for verification of theory method, sampled and analyzed using the particle size analyzer In the results, we have found maximum $5\~7\%$ error rate in the comparative value of theory and experimentation. Optimum velocity and experimental results of $U_3O_8$ for scatter prevention have applied for design of demonstration voloxidizer, and produced operation condition of voloxidizer.

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Active learning 기반 운전자 행동 모방 학습 기법 연구 (A Study on a Driving Behavior Imitation Learning Method Based on Active Learning)

  • 황카이스;문명운;박지선;성연식;조경은
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2019년도 춘계학술발표대회
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    • pp.485-486
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    • 2019
  • Simulated driving behavior is an important aspect of realistic simulation systems. To simulate natural driving behavior, this paper proposes an imitation learning method based on active learning that combines demonstration and experience. Driving demonstrations are collected from human drivers in a driving simulator. A driving behavior policy is learned from these demonstrations. The driving demonstration dataset is augmented with new demonstrations that the original demonstrations did not contain, in the form of behaviors from another driving behavior policy learned from experience. The final driving behavior policy is learned from an augmented demonstration dataset.

전주·완주 수소시범도시 주민수용성 분석 (Analysing the Acceptability of Jeonju-Wanju Hydrogen Demonstration City)

  • 이지훈
    • 신재생에너지
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    • 제17권4호
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    • pp.28-35
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    • 2021
  • It is very important to secure hydrogen acceptability to achieve the hydrogen economy. This study empirically analyzed the factors affecting acceptance by using the results of a questionnaire administered to residents of Jeonju-Wanju Hydrogen Demonstration City. The results indicated that the safety of hydrogen infrastructure and local industry and economic growth positively affected acceptance. In particular, local industry and economic growth were more effective in improving resident acceptance. As policy factors, support for government policies and disclosure of information on projects were also positive factors. As perceptual factors, the higher interest in hydrogen and less safety concerns positively affected acceptability. Therefore, as far as hydrogen safety is concerned, it seems necessary to support local industry development to improve acceptability, disclose information related to industrial development, and introduce targeted experience programs.

OverIT: An Interactive Overlay for Touchscreen-based UI Customization by Demonstration

  • Lee, Kyungyeon;Chung, SeungA;Oh, Uran
    • International journal of advanced smart convergence
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    • 제10권3호
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    • pp.143-148
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    • 2021
  • Smartphones have been widely used for various purposes and stay connected with people at all times. However, the use of such touchscreen devices can be physically restricted depending on users' context where only one hand is available to interact with the device. Even major smartphone manufacturers (e.g., Apple, Samsung) offer one handed mode, they still lack functions in the third-party applications, and the process is also complicated. We propose OverIT, a system that enables users to customize interfaces by adding new buttons on an interactive overlay which can be positioned anywhere on the touchscreen where each button serves the same functionality as an existing one. It is designed to support users to map a certain button event freely and easily to a newly created button by performing a demonstration of a button tap. We expect our system to improve the overall user experience of one-handed interaction with touchscreen devices.

국가필수예방접종 보장범위 확대 시범사업의 정책 내용분석 - 국가필수예방접종 공급방식을 중심으로 - (Policy Content Analysis of the Expanded National Immunization Program in the Republic of Korea)

  • 김춘배;안양희;차병호;김효열;이석구;이중정;박혜숙;신택수;현숙정;고운영
    • 보건행정학회지
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    • 제18권3호
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    • pp.58-89
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    • 2008
  • The purpose of this study was to evaluate comparatively the content of the Expanded National Immunization Program according to the provision method between 2005 and 2006 in Korea. We assessed the impact of the mutually exclusive vaccination policy using the result reports of the 2005 and 2006 Demonstration Project and the related references by the content analysis. The public health centers paid vaccination fees to the private clinic and hospital in the 2005 Demonstration Project in Daegu metropolitan city and Gunpo city. But, the public health centers directly supplied free vaccination services to the children in the 2006 Demonstration Project in Gangneung city, Yangsan city, and Yeongi-gun. The total budgets of 2005 and 2006 Demonstration Project were 6.57 billion won and 0.65 billion won, respectively. The computerized registration rates and timeliness rates of administration of each vaccination had improved all in the 5 Demonstration Project regions. However, the computerized registration rates of most vaccination in Gunpo city were higher than those in the 2006 Demonstration Project regions except hepatitis B. Especially, the computerized registration rate of BCG was 48.3%, but the BCG coverage rate by the follow-up telephone survey was 99.8% in Daegu metropolitan city. The community parents in all the regions were satisfied because of expanding financial and geographical access to immunization coverage. In conclusions, from the aspect of the main outcomes, the implementation of two different financial immunization aids appears to be widely accepted among these parents and to have had an impact on vaccination coverage. In the future, the government must try to enact that the national immunization policy including under-immunised or incompletely immunised groups would be achieved by the affordable method of the public-private dynamics.

온라인 태권도 시범 공연의 플로우(Flow) 경험이 관여도 및 재관람의도에 미치는 영향 : -성인 여성을 대상으로- (The Effect of flow experience of online Taekwondo demonstration on participation and re-visibility : For adult women)

  • 서은미
    • 문화기술의 융합
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    • 제7권3호
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    • pp.415-424
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    • 2021
  • 본 연구는 성인 여성들을 대상으로 온라인 태권도 시범 공연으로 인한 플로우(Flow) 경험이 관여도 및 재관람 의도에 미치는 영향을 파악하고, 온라인 태권도 시범 공연의 활성화 및 관람객 증진, 성인 태권도 수련생 증진을 위한 실질적 자료를 제공하고자 한다. 이에 국기원 태권도 시범단이 공연한 '하이킥' 온라인 태권도 시범 공연을 관람한 관람객 들을 모집단으로 선정하였고, 결과와 논의를 통한 결론은 다음과 같다. 첫째, 여성 관람객들의 태권도 경험 유무로 인한 플로우, 관여도, 재관람의도의 차이는 플로우 하위요인 중 즐거움 요인을 제외한 주변의식, 시간왜곡, 관여도. 재관람의도 요인에서 차이가 있는 것으로 나타났다. 둘째, 온라인 태권도 시범 공연의 플로우(Flow) 요인 중 주의집중, 즐거움, 시간왜곡 요인은 관여도에 긍정적인 영향을 미친 것으로 나타났다. 셋째, 온라인 태권도 시범 공연의 플로우(Flow) 요인은 재관람의도에 긍정적인 영향을 미치는 것으로 나타났다. 넷째, 온라인 태권도 시범 공연의 관여도는 재관람의도에 긍정적인 영향을 미치는 것으로 나타났다.

디스크이동식 폐타이어 열분해 실증설비 설계와 시운전 (Design and Commissioning on Waste Tire Pyrolysis Demonstration Plant with Disk Moving Tube Reactor System)

  • 김성연;김기경
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2008년도 춘계학술대회 논문집
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    • pp.456-459
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    • 2008
  • The 10t/d pyrolysis demonstration plant for waste tire recycling have been constructed and operated for commissioning of the plant. The plant have the tube reactor with chain conveyer attached disk. The reactor temperature is 500$\sim$600deg.C and pressure is -80$\sim$-100mmHg. Non-condensable gas is used as fuel for pyrolysis heat source.

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노치가공법에 의한 기계적 피로결함 시험편 제조 (Fabrication of Mechanical Fatigue Flawed Specimen with Notch Processing)

  • 홍재근;박반욱
    • 연구논문집
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    • 통권32호
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    • pp.55-64
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    • 2002
  • Performance demonstration with real flawed specimens has been strongly required for nondestructive evaluation of safety class components in nuclear power plant. Specimen has been designed to produce mechanical fatigue flaw with tension stress and fatigue flaw has been produced to control stress and cycle, for suitable roughness. Notch condition is considered for control of fracture mode. After seal welding for fracture surface, final welding was performed to complete flaw specimen with GTAW(Gas Tungsten Arc welding) and FCAW(Flux Cored Arc Welding). It was demonstrated flaw size of flawed specimen by radiographic. testing and ultrasonic testing.

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방사선과 임상실습의 효율적인 운영방안 - 최근 3년간 재학생들의 견해 - (The Opinion of Students about Clinical Demonstration in Dept. of Radiotechnology.)

  • 박종삼;이준일
    • 대한방사선협회지
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    • 제28권1호
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    • pp.23-33
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    • 2002
  • The following outlines responses based on a study conducted among 210 junior-year medical students who have completed clinical demonstration during the past three years (1998, 1999, 2000) These students have completed clinical demonstrations in the field

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