• 제목/요약/키워드: Conceptual change model

검색결과 161건 처리시간 0.026초

Reconfigurable Space 개념에 의한 스마트공간서비스 시나리오의 테스트베드 구현 (Implementing a Smart Space Service Testbed based on the Concept of Reconfigurable Spatial Functions)

  • 조윤정;김성아
    • 한국HCI학회:학술대회논문집
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    • 한국HCI학회 2009년도 학술대회
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    • pp.855-861
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    • 2009
  • 20세기 초 바우하우스(BAUHUAS), 러시아 구축주의(Constructivism), 구성주의 운동(VKHUMAUS)등에서는 산업구조주의의 특히 재료, 기술, 과학의 도입을 통한 디자인 반영을 강조하였다[01]. 건축에 있어서도 "형태는 기능을 따른다(Form follows Function)"라는 합리주의적 사고를 기반으로 산업 디자인이 반영된 차별화된 공간형태가 등장하였다. 이 시대 건축가들의 공간형태에 대한 해석은 효율과 편리성 구현을 우선한 기능에 목록을 나열하는 것과 공간에서 요구되는 기능들 간의 관계를 건축형태 어휘로 도출하고 구현하는 것이었다[02]. 르 꼬르뷔제의 필로티(les polotis), 옥상테라스(Le Toit-Terrasse), 자유로운 평면(Le Plan Livre), 가로로 긴 창(La Fenetre en Longeu), 자유로운 파사드(Le Facade Livre)로 정의된 근대건축 5형식은 20세기에 전개된 건축공간형태 개념을 보여주는 대표적인 사례이다. 그러나 근대건축에서 기능에 의해 정의된 공간형태어휘는 형태 구현을 기술 제약과 재료의 물리적 특성의 한계로 가능한 공간형태 범위를 갖게 되고, 도리어 요구되는 기능이 공간형태에 따라 결정되는 모순적인 상황을 초래하였다. 본 논문에서는 오늘날의 공간디자인과 관련된 IT기술 선행연구사례와 공간형태와 기능에 있어 기술과 재료의 변화로 유연한 공간을 형성이 가능한지 살펴보고자 한다. 이를 위해 기술을 적용에 있어 사용자의 요구에 따른 다양한 공간형태 어휘와 재료의 물리적 변화를 통한 기능의 조합과 제공하여 동일공간에 다양한 기능과 프로그램을 제공하고, 목표지향적인 공간으로 재구성할 수 있는 특성을 지닌 공간개념을 제시함을 목적으로 한다.

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그린카 산업의 학제적 분석 방안에 관한 연구 (A Multidisciplinary Research Framework for Green Car Industry)

  • 최진호;정선양;박경배;장대철;조형례;강승규
    • 기술혁신연구
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    • 제22권3호
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    • pp.101-133
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    • 2014
  • 전 세계적으로 기후변화와 저탄소 소비행태를 향한 움직임이 일어남에 따라 이에 대한 대처가 요구되고 있으며, 국제적인 유가상승은 그린카에 대한 소비자들의 니즈를 촉발시키고 있다. 본 논문은 그린카 산업 플랫폼 구축 정책과 기업전략을 도출하기 위한 선행연구로서 이를 위해 정책프레임 및 실증분석, 개념적/수리적 모델링, 시스템 다이내믹스, ABM 등의 다양한 방법론을 사용하여 다각적으로 접근, 통합하여 플랫폼 관점에서의 학제적 연구 프레임워크를 제시하고자 한다. 먼저 그린카 사례 분석을 위한 산업플랫폼 분석 프레임워크를 도출하고, 필요한 구성 요소들을 제시하였으며 계량경제학 모형을 적용하여 그린 플랫폼(양면시장)에 관련된 기본 모델을 수립하였다. 또한 동태적인 관점에서의 분석을 위해 시스템 다이내믹스 모형을 그린카 환경에 접목하여, 특정 그린카 산업분석에 적용할 수 있는 시스템 다이내믹스 분석 모델을 수립하였다. 마지막으로 보다 미시적 관점에서 한국의 하이브리드 자동차 시장의 활성화 방안에 대하여 ABM을 이용하여 개별 소비자 관점에서 연구하였다. 이를 기반으로 현 한국시장에서 실행 중 혹은 실행 예정인 하이브리드 자동차 정책에 대한 분석 방안을 제시하였다.

중국의 재난위험 정보유통에 관한 사례 연구 (Case Study on the Distribution of Disaster Risk Information in China)

  • 최충익;이성
    • 유통과학연구
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    • 제14권4호
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    • pp.55-66
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    • 2016
  • Purpose - This article aims to explore the characteristics of disaster risk distribution information in China. Also, this research attempts to analyze the findings of risk communication using case study in chronological order in terms of social amplification of risk. To achieve the purpose, the paper reviews the trends and issues of risk communication in China, with an emphasis on examining earthquakes by a chronological approach. In these regards, we hope that some relevant findings from this empirical study with cases will be able to enhance national risk communication and provide implications in Korea as well. Research design, data, and methodology - The conceptual framework of this study is theoretically based on the risk amplification model, which describes signals about risk transmitted and processed by individuals and social groups. The social amplification of risk also reflects the interactions of social groups about disaster-related risk issues, which are potential amplifiers or attenuators of communication signals. The key concept of social amplification implies that the risks pertaining to natural disasters interact with social, psychological, institutional, and cultural processes in ways that can affect public perceptions of risk. SMCRE Model is methodologically employed to examine risk communication history of China with the focus on natural disaster. Four earthquakes are selected to figure out the chronological characteristics of risk communication since 1970s. He bei Tang Shan earthquake is selected as an example disaster before 1990's, while the earthquake in Yun Nan Jiang is explored for the case study of 1990's. The earthquake in Si Chuan Wen Chuan is also examined as a example disaster of 2000's. The recent earthquake in Si Chuan Ya An Lu Shan is selected as a case of 2010s. Results - SMCRE model in this case study is operationally defined as a methodology and applied to the four earthquakes occurred in China. SMCRE model describes the exchange of risk information and is also applied to all forms of communication between stake holders. Each factor of risk communication includes source, message, channel, receiver and effect. It is notable that a big progress has been made on disaster risk communication in China for the past 40 years. We also found that highly developed information technology has enabled Chinese society to better cope with natural disaster, leading to enhanced disaster risk communication. It is mainly found from case study that the disaster risk communication of China has been involved with political situation, which derived from the change of government for the past 40 years. Conclusion - From this historical research, it can be inferred that the policies and politics of Chinese leaders have had a more critical role to play in the process of source of risk communication than those of any other countries. The results of this paper also support that the effective risk communication involves not only the improved reliability of local government as a key factor of disaster risk communication, but also is accompanied by international cooperation for substantial collaboration with stake holders.

Coexistence of plant species under harsh environmental conditions: an evaluation of niche differentiation and stochasticity along salt marsh creeks

  • Kim, Daehyun;Ohr, Sewon
    • Journal of Ecology and Environment
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    • 제44권3호
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    • pp.162-177
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    • 2020
  • Background: Ecologists have achieved much progress in the study of mechanisms that maintain species coexistence and diversity. In this paper, we reviewed a wide range of past research related to these topics, focusing on five theoretical bodies: (1) coexistence by niche differentiation, (2) coexistence without niche differentiation, (3) coexistence along environmental stress gradients, (4) coexistence under non-equilibrium versus equilibrium conditions, and (5) modern perspectives. Results: From the review, we identified that there are few models that can be generally and confidently applicable to different ecological systems. This problem arises mainly because most theories have not been substantiated by enough empirical research based on field data to test various coexistence hypotheses at different spatial scales. We also found that little is still known about the mechanisms of species coexistence under harsh environmental conditions. This is because most previous models treat disturbance as a key factor shaping community structure, but they do not explicitly deal with stressful systems with non-lethal conditions. We evaluated the mainstream ideas of niche differentiation and stochasticity for the coexistence of plant species across salt marsh creeks in southwestern Denmark. The results showed that diversity indices, such as Shannon-Wiener diversity, richness, and evenness, decreased with increasing surface elevation and increased with increasing niche overlap and niche breadth. The two niche parameters linearly decreased with increasing elevation. These findings imply a substantial influence of an equalizing mechanism that reduces differences in relative fitness among species in the highly stressful environments of the marsh. We propose that species evenness increases under very harsh conditions if the associated stress is not lethal. Finally, we present a conceptual model of patterns related to the level of environmental stress and niche characteristics along a microhabitat gradient (i.e., surface elevation). Conclusions: The ecology of stressful systems with non-lethal conditions will be increasingly important as ongoing global-scale climate change extends the period of chronic stresses that are not necessarily fatal to inhabiting plants. We recommend that more ecologists continue this line of research.

댐 운영을 고려한 금강의 생태.수문학적 변화 평가 : I. 유황변화 분석 (Evaluation of Eco-Hydrological Changes in the Geum River Considering Dam Operations: I. Flow Regime Change Analysis)

  • 고익환;김정곤;박상영
    • 한국수자원학회논문집
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    • 제42권1호
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    • pp.1-8
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    • 2009
  • 본 연구에서는 금강의 생태계에 영향을 끼쳤을 가능성이 있는 주요 개발 및 관리 활동들을 기초로 하여 생태수 문학적인 하천평가 시나리오 구성을 위한 개념모델을 제시하였다. 또한 생태수문학적 하천평가를 위하여 여러 지원 프로그램과 함께 유역물수지 모델인 KModSim과 하천생태분석 모델인 RAP을 이용한 분석방법을 개발하였다. 용담댐과 대청댐의 건설 및 운영에 따라 예측되는 유황변화를 분석하기 위하여 다양한 시나리오에 따른 수문분석을 실시한 결과에 의하면, 수통 및 공주지점에서 초과시간 10%에 해당하는 "Percentile 10" 값은 각각 20.5%, 8.0% 감소한 반면, "Percentile 90" 값은 각각 156.3%, 340.8%나 증가하여 저유량의 변화가 크게 나타났으며, 이는 한국의 비조절하천의 특징인 큰 유황변동율을 감소시킨 것으로 나타났다. 후속 논문에서는 생태-수문학적 분석결과를 제시 할 것이다.

응급통신관리 정보시스템 구축과 ASP 활용에 관한 연구 (A Study on the Development of Emergency Medical Dispatch Information System using ASP)

  • 최근명
    • 한국응급구조학회지
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    • 제6권1호
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    • pp.27-37
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    • 2002
  • The health and medical service attracts more public attention as the economy of Korea is rapidly growing up and the standard of living is elevated. Especially, the interest and demand on the prehospital emergency medical service that consists of the important part of primary medical service that is directly related to the life of patients are gradually increased. However, as compared with other advanced countries such as America in this area, Korea actually fell behind in the utilization of IT (Information Technology) to maximize the efficiency of emergency service system as well as has a problem in the general service system. This study suggested the necessity to introduce EMD (Emergency Medical Dispatch) system that takes a great role as the core part in the prehospital emergency medical service that is not systemized in Korea yet. In addition, this study proposed the implementation model of EMD ASP system using ASP (Application Service Provider) in EMD system to flexibly deal with the change of IT and efficient implementation and integration of information system as well as to significantly reduce cost through wire/wireless high speed Internet network that is politically promoted in Korea on the basis of EMD. The system analysis and design was executed by HIPO (Hierarchy Plus Input Process Output) analysis that was the conceptual design technology for EMD information system modeling based on ASP and DFD (Data Flow Diagram). This study proposed DB table configuration and data schema to implement the application of web browser interface in EMD system through ERD(ER-Diagram) of EMD ASP system. Finally, this study described how to implement and utilize EMD information system. This study aims to facilitate the qualitative development of emergency medical service in the future as suggesting the concrete models for the implementation of high value-added prehospital emergency medical information system as applying ASP concept to EMD system of prehospital emergency medical service area.

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ICT기업 융합성과의 결정요인에 관한 연구 (Determinants of Convergence Performance in ICT Firms)

  • 이무순;손달호
    • 한국정보시스템학회지:정보시스템연구
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    • 제26권3호
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    • pp.1-23
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    • 2017
  • Purpose With the advent of the 4th Industrial Revolution era, ICT convergence industry is leading the wave of new change. These changes in the industrial field are recognizing convergence as a strategic cooperation tool of management for creating new value. In order to achieve the research purpose, conceptual understanding of ICT convergence is summarized by focusing on concepts, features, types and cases. In addition, this study established the theoretical rationale for the determinants of ICT convergence performance, and examined previous researches related to ICT convergence. Design/methodology/approach The empirical research method is based on a survey of 510 companies including managers and mid-level practitioners who understand the contents of the relevant field, 305 data were used for analysis. We conducted exploratory factor analysis to verify the grouping of these questionnaire items and conducted confirmatory factor analysis to analyze the validity and reliability of the measurement model. Through the statistical analysis, we analyzed the structural relationship of ICT firms' competencies for convergence performance. Findings Linkage of ICT strategies established by corporations is an important factor for enhancing resource capacity and convergence ability. It is important to ensure that product innovation, consumer-oriented strategies, and ICT strategies for the implementation of business strategies are closely linked. In addition, in the convergence environment, companies should make efforts to develop convergence ability and improve organizational performance through utilization of ICT resources. From the CEO's perspective, it is necessary to understand the knowledge, technology and resources arising from the convergence environment, and to integrate with the resources possessed by the enterprise to induce the organization's performance.

다양한 수평비정형성을 갖는 도시구조물의 등가정적해석에 의한 내진성능분석 (Seismic Performance of Urban Structures with Various Horizontal Irregularities using Equivalent Static Analysis)

  • 최기룡;최민호;김성일
    • 중소기업융합학회논문지
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    • 제6권1호
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    • pp.25-32
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    • 2016
  • 현대건축의 변화와 발달에 따라 건축물의 형상은 더욱 다양해지고 비정형화 되어가는 추세에 있다. 그러나, 건축물의 내진성능에 대한 고려를 배재한 가운데 진행된 건축형상의 변화에 대한 시도는 지진 발생 시 심각한 구조적 피해를 초래할 수 있다. 따라서, 건축형상에 대한 합리적 분류를 기반으로, 보다 상세하고 발전된 내진설계 전략을 수립하는 것은 매우 중요한 기술적 대비로서의 의미가 있다. 본 연구에서는 다양한 요각모서리 형상을 갖는 수평비정형 구조물들에 대한 내진성능을 비교 검토하고자 하였다. 최대한 단순화 된 비교가 가능하도록 정형구조물 및 서로 다른 네 가지 수평비정형 구조물 모델을 선정하여 구조적 특징을 통일시키고, 각 비정형성에 대한 등가정적해석을 수행하였다. 해석 결과, 상대적으로 탁월한 정형구조물의 내진성능을 확인할 수 있었고, 수평비정형성을 반영하는 요각모서리 부분에서 상대적 응력집중 및 구조적손상이 확인되었다. 본 연구 결과를 통해 미래의 도시건축물 내진설계를 위한 내진성능 기반의 가이드라인을 제시할 수 있을 것으로 판단된다.

Critical Success Factors for the Adoption of Health Management Information Systems in Public Hospitals in Zimbabwe

  • Caleb Manjeese;Indira Padayachee
    • Journal of Information Science Theory and Practice
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    • 제11권2호
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    • pp.82-103
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    • 2023
  • The Zimbabwean healthcare sector faces huge challenges due to increased demands for improved services for a growing number of patients with fewer resources. The use of information and communications technologies, prevalent in many industries, but lacking in Zimbabwean healthcare, could increase productivity and innovation. The adoption of health management information systems (HMISs) can lead to improved patient safety and high-level patient care. These technologies can change delivery methods to be more patient focused by utilising integrated models and allowing for a continuum of care across healthcare providers. However, implementation of these technologies in the health care sector remains low. The purpose of this study is to demonstrate the advantages to be attained by using HMISs in healthcare delivery and to ascertain the factors that influence the uptake of such systems in the public healthcare sector. A conceptual model, extending the technology, organization, and environment framework by means of other adoption models, underpins the study of adoption behavior. A mixed method methodology was used to conduct the study. For the quantitative approach, questionnaires were used to allow for regression analysis. For the qualitative approach, thematic analysis was used to analyse interview data. The results showed that the critical success factors (namely, relative advantage, availability, complexity, compatibility, trialability, observability, management support, information and communication technology expertise, communication processes, government regulation, infrastructure support, organizational readiness, industry and competitive support, external support, perceived ease of use, perceived usefulness, attitude, and intention to use) influenced adoption of HMISs in public hospitals in Zimbabwe.

새로운 방송 서비스로의 이전 : 이주 이론을 통한 MCN으로 전환의도 연구 (A Study on Switching Intention of Broadcasting Service to MCN Service by Migration Theory)

  • 김용희
    • 산경연구논집
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    • 제10권1호
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    • pp.59-67
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    • 2019
  • Purpose - The Millennial Generation, which grew in the wake of the spread of the Internet and rapid changes in the media environment, is rapidly moving from the traditional broadcasting environment to the Internet-broadcasting environment in terms of content acceptance. With the emergence of UGC (User-generated content), the change in the status of single-person content creators enables the growth of multi-channel networks (MCN), a new content-distribution platform and an agency concept for single creators. Youtube-based MCN produces multiple single star producers and casts and provides its own video series through Youtube. It is also emerging as a major M&A target for global media providers in terms of providing content to a wide range of consumers with the same interests and consumption characteristics. In addition, for the Millennials generation, which are part of their lives, MCN is becoming the most suitable media for TGIF (Twitter, Google, i-phone, Facebook). Accordingly, this study defines newly emerging MCNs and analyzes the factors for accepting MCN-produced content based on the push-pull-mooring (PPM) model. Research design, data, and methodology - An empirical analysis is performed through a questionnaire survey. For this purpose, 204 people who have experience of watching MCN were studied. Collected data is processed through analysis of a structural equation model using R to test the hypothesis. Results - For the MCN service to become an alternative to existing media, it is necessary to continuously promote cultural diversity and diversity of attempts that conventional media cannot provide. It is the attractiveness of the alternative that has the greatest influence on the intention to switch to a MCN service. When we look at MCN content so far, certain patterns such as game progress, introduction, food, and chat rooms have already appeared. We need to overcome this and develop a completely new conceptual content that we have never seen before. This requires a more generous viewer perception of the topics covered. For diversity, linguistic and verbal violence should be tolerant in common sense to provide a foundation for securing cultural diversity. Conclusions - In this study, we tried to develop a comprehensive approach to the substitution effect of MCN. In terms of academic achievement, the PPM model is used to enhance the utilization of media and broadcasting. Practical implications are to provide an analytical framework for verifying alternative or complementary effects when viewers switch to MCN.