• 제목/요약/키워드: Case Study

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연료전지 기술개발 추진전략간의 비교분석 방법론 (A Study on Prioritizing and Evaluating R & D Alternatives for Fuel Cell Technology)

  • 최성수;정근모
    • 에너지공학
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    • 제2권1호
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    • pp.45-53
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    • 1993
  • 연료전지의 R&D 평가에 있어 현재의 불확실한 상황하에서 미래의 의사결정에 유용한 결과를 제공할 수 있는 방법론을 고찰해 보았다. 시뮬레이션을 이용한 사례연구는 기초 입력자료가 동일하다는 가정하에 일정상의 선후관계만을 고려한 경우(Case 1), 동등 및 배제 하위프로젝트를 고려한 경우(Case 2) 및 각 단계의 병렬수행을 허용한 경우(Case 3)에 대하여 수행하였으며, 이를 통하여 병행된 연구의 단계별 성공확률은 서로 상관관계를 갖고 있으며 각 프로젝트의 성공확률은 Case 1, Case 2, Case 3 순으로 향상되었고 상업화 성공시기는 Case 3 에서 현저하게 단축됨을 확인할 수 있었다.

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20세기 중반 실험주택의 특성에 관한 연구 -케이스 스터디 하우스를 중심으로- (A Study on the Characteristics of the Experimental House in the Mid-twentieth Century -focused on he Case Study Houses-)

  • 안은희;이정욱
    • 한국실내디자인학회논문집
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    • 제17호
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    • pp.143-149
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    • 1998
  • After the Industrial Revolution. most of experimental houses were had focused on the way of construction structure and material of buildings. Especially the Case Study Houses among experimental house of the mid-twentieth century were appreciated as an important case in a viewpoint of technology space and aesthetics. The Case Study Houses program was started by the sponsorship of magazinein California 1945 after the World War II. From 1945 to 1966. for about 20years more than 36 house projects were progressed by the Case study House Program This research divided and organized the expression characteristics of the Case Study Houses' technical spacious and artistic aspects. As a result the experimental housing concept that was established within the Case Study Houses became the remarkable concept of the modern architecture that is successfully accomplished within the frame of housing.

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CASE기술의 확산과 정보시스템 조직변화요인 (Diffusion of CASE technology and IS organizational change factors)

  • 양기영;이재범;문용은
    • 경영과학
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    • 제13권1호
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    • pp.71-95
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    • 1996
  • Many researchers have studied the theme on CASE technology. However, there are no many researches which lightened the diffusion of CASE technology and organizational change. The purpose of this study is to investigate the factors that influence on the diffusion of CASE technology and the way how IS organization changes as a result of the diffusion. We exploited a case study research as a methodology. We selected five software development firms which possessed the leading IS technology abilities as the case companies. We realized that the diffusion of CASE technology proceeded under the three context variables - managerial context of information systems, the intent and behavior of key players and implementation strategy of organization - to enhance the performance of information systems. The contribution of this study is to clarify the change of IS organization as a result of CASE technology diffusion. This study has the limitation that tried to analyze the organizational change only in a direction.

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수학교사의 전문성 개발을 위한 사례방법 (Case-Method for Mathematics Teacher Professional Development)

  • 김남희
    • 대한수학교육학회지:학교수학
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    • 제4권4호
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    • pp.617-631
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    • 2002
  • In this study, we introduced the concept of ‘case-method’ which is the method to discuss about actual education with a concrete case. And we suggested that case-method need to be applied a program for mathematics teacher professional development. To assist this suggestion, we attempted to examine recent mathematics educational studies that is written by case-study and topics that is included in mathematics teacher educational program. After these examination, we pointed out that case-method with a educational case have not applied in teacher education program in korea. According to the suggestion in this study, we showed a concrete example of case-method. In this example, we set up three perspectives(on general theory of mathematics education, on contents of given case, on application given case to own class) to analysis given case and revealed several disscussion topics each perspective. Finally, we referred to the following research of this paper.

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Long Short Term Memory 모델 기반 Case Study를 통한 낙동강 하구역의 용존산소농도 예측 (Prediction of DO Concentration in Nakdong River Estuary through Case Study Based on Long Short Term Memory Model)

  • 박성식;김경회
    • 한국해안·해양공학회논문집
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    • 제33권6호
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    • pp.238-245
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    • 2021
  • 본 연구에서는 LSTM 모델을 활용하여 낙동강 하구역의 DO 농도 예측을 위한 최적 모델 조건과 적합한 예측변수를 찾기 위한 Case study를 수행하였다. 모델 매개변수 case study 결과, Epoch = 300과 Sequence length = 1에서 상대적으로 높은 정확도를 보였다. 예측변수 case study 결과, DO와 수온을 예측변수로 했을 때 가장 높은 정확도를 보였으며, 이는 DO 농도와 수온의 높은 상관성에 기인한 것으로 판단된다. 상기 결과로부터 낙동강 하구역의 DO 농도 예측에 적합한 LSTM 모델 조건과 예측변수를 찾을 수 있었다.

한국 위기관리분야 사례연구방법에 관한 내용분석 (Content Analysis of Case Study Research on the Crisis Management in Korea)

  • 이주호;안혜원;류상일
    • 한국콘텐츠학회논문지
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    • 제12권2호
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    • pp.284-291
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    • 2012
  • 본 연구는 2004년 이후 최근까지의 위기관리 분야 사례연구 논문의 연구경향을 연구문제 및 사례 대상에 대한 분석과 일반화 과정에 초점을 두며, 과학적 추론으로써 사례연구방법 활용에 있어서 향후 연구의 발전방안을 제시하고자 하였다. 분석 결과 현재 한국에서의 위기관리 분야 연구는 거의 대부분이 개별기술적 사례연구로서 위기관리 분야의 개별 분과학문으로서의 발전을 위한 이론 형성에 기여할 수 있는 연구가 드문 것으로 나타났으며, 연구설계에 있어서도 보다 치밀한 사례연구의 설계를 위한 연구문제의 규정 및 사례선정의 논리, 자료분석을 위한 틀을 구체적으로 제시하는 경우가 드문 문제점이 나타나 향후 사례연구 방법에 대한 접근에 있어 연구자들의 연구설계에 대한 심도 있는 접근이 요구된다 할 것이다.

배수관망(配水管網)의 간선배치(幹線配置)에 따른 정류(定流)흐름 해석(解析) (Analysis of Steady Flow by Main Pipe Arrangement in the Water Distributing Pipe Network)

  • 이중석;박노삼;김지학;최윤영;안승섭
    • 상하수도학회지
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    • 제13권3호
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    • pp.73-82
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    • 1999
  • In this study, the optimal analysis for pipe network is performed for the combined ideal pipe network system(CASE 1, CASE 2 and CASE 3) which is composed of 25 nodes, 41 elements, and 1 fixed nodal head with evaluating pressure variation distribution of main and branch in grid composed drainage pipe network. The linear analysis technique used as the analysis method in this study, the KYPIPE being used extensively as the linear technique to design and analysis of pipe network is applied. Firstly, in the analysis of pipe network, the CASE 2 and CASE 3 supply same thing(value) in the result of considering the total flow provided each pipeline, but in the general intension in the case of CASE 2, relative width of supply is more large than CASE 1 and CASE 3. Secondly, in the analysis technique of pipe network, CASE 3 is analysed largest as a result of comparing with same heads, and in the order of their size CASE 2 and CASE 1 were determined but the difference doesn't appear to be obvious. Thirdly, as the result of determining main factor, pressure in the design and analysis of net work. CASE 3 is from Node 3 to 25 than CASE 1 and CASE 2 and it is determined in the order of their size, CASE 2 and CASE 1. Finally, in this study, discharge flow distribution is evaluated in the same condition with 3-type CASE in the case of branch position for designing optimal composed drainage pipe network. As the result of that, branch pipe perform. Therefore, it is thought that the efficient and reasonable management of water supply and sewerage design will be possible if it give all our energies to study at the pipe system design in and out of country in the future.

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유휴농지 활용유형별 사례 비교 연구 (A Comparative Study on the Cases of Utilizing Type of Idle Farmlands)

  • 김경찬;정인호;구승모
    • 농촌계획
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    • 제21권2호
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    • pp.189-199
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    • 2015
  • This study made use of 9 types of utilizing idle farmland deducted from existing research in order to examine cases by type of idle farmland, and selected representative cases by type after analyzing contents of 165 available newspaper articles. Selected Cases were assorted into agricultural use and nonagricultural use, and agricultural use are as followed. (1)Community Service/Farming type is the case of Gimhae city reported on 'Busan Ilbo', (2)High Income/Farming type is the case of cooperative unit of Geumjeong crude drug in Yeongam appeared in 'Newsis', and the case of Omija industry in Mungyeong reported on 'Hankyoreh', (3)Tourism/Landscape/Farming type is the case of rape flowers and buckwheat flowers in Gupo village reported on 'Asia News Agency', (4)Stock Raising/Farming type is the case of growing foraging crops published in 'The Daejeon Ilbo', (5)Weekend farm type is the case of utilizing idle farmlands and creating weekend farm reported on 'Mediawatch', (6)High income/Forest type is creating Mulberry cultivation areas in Hamyang-Gun published in 'Yonhap News', (7)Ecology/Landscape/Forest type is forestation project of idle land reported on 'Newsis', (8)Agricultural Experience Study type is the case of managing agricultural experience study center in Dosun elementary center published in 'Sisajeju' and the case of non-agricultural application case, (9)Ecological Environment type is the case of wetland restoration of idle farmland in Gochang. This study investigated and arranged detailed contents by the literature search and interview investigation according to investigating items such as utilizing area, main agent, purpose, utilizing item, utilizing content, etc. by case. With that, it deducted implications as well as case characteristics, and finally suggested political proposals through the case analysis.

성공적인 벤처기업의 특성 분석: 사례연구 (The Characteristics of the Successful Venture Firms: Case Study)

  • 송위진;신태영
    • 기술혁신학회지
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    • 제1권3호
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    • pp.351-363
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    • 1998
  • This case study aims at investigating the factors which make venture firms successful. It analysedthree high-performance venture firms originated from the government-financed rese arch institute, the company and the university on the viewpoint of 'dynamic capability' theory. In this case study, technology integration capability and administrative innovation capability were identified as success factors of the three venture firms. The study also presented the role of the incubating organizations. Although incubating organizations supported technological and managerial resource-building of the entrepreneurs, there was not active interactive-learning between venture firms and incubating organizations after spin-off.

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열박음 공정이 케이스의 온도분포 및 변형에 미치는 영향(II) - 변형 계측 및 변형 해석 모델 정립 - (A Study on the Temperature Distribution and Deformation of Case in Shrinkage Fit Process(II) - Deformation Measurement and Deformation Analysis Model -)

  • 장경복;정진우;강성수;최규원;박찬우;조상명
    • Journal of Welding and Joining
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    • 제19권5호
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    • pp.492-498
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    • 2001
  • In the previous study, temperature monitoring of case about shrinkage fit process was performed and heat transfer model was developed in detail by feedback and tuning among monitoring result, process investigation, and analysis result. The gap element in contact between case and core was effectively used in analysis model. In present study, following things are performed to solve deformation of case due to shrinkage fit process on the basis of previous result. Above all, mechanical material properties of case are measured by case specimen for deformation analysis considering weldment of case. Deformation of case before and after shrinkage fit process is measured, too. Three dimensional deformation model is developed by the comparison and inspection between these experimental data and analysis results. Deformation analysis is simulated with the result of heat transfer analysis, in other words, non-coupled analysis is used. Finally the countermeasure for deformation is brought up through those.

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