• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 1995년도 Proceedings of the Korea Automation Control Conference, 10th (KACC); Seoul, Korea; 23-25 Oct. 1995
• /
• pp.328-331
• /
• 1995

A successful, computer-aided design support system can help a process designer focus on making effective design decisions, not merely tedious routine calculations. Such a system is essential to enhance quality of design in terms of economics, environmental benignity, reliability, robustness, and operability. Such a statement is even more accepted when applied to conceptual design problems, where gross design specifications are given while a combinatorial number of design alternatives exists. This paper presents an agent-based approach as a systematic and efficient way to design a design support system for the synthesis of conceptual chemical processes. An agent-based approach allows us to handle design knowledge as an object and thus greatly improve the modularity and reusability of that knowledge. Such modularity and reusability lead to the increased productivity in the development of a design support system and the increased ease in the relaxation of design decisions and the generation of design alternatives, both of which functions are critically important in dealing with the complexity and uncertainty of conceptual design problems.

• 한국CDE학회논문집
• /
• 제10권2호
• /
• pp.133-142
• /
• 2005

This paper proposes an object-oriented conceptual information model of mechanical assemblies, named open assembly model (OAM). The proposed assembly model primarily defines hierarchical relationships between parts and subassemblies. Together with the assembly hierarchy. the model also provides a way to represent tolerances, kinematic information, and parametric assembly constraints. Relational information such as mating conditions and degree of freedom between parts and subassemblies is captured via assembly features and relationships thereof. The information model is described using class diagrams of the Unified Modeling Language (UML), and instance diagrams are used to exemplify the proposed information model. The conceptual model presented in this paper is an integrated information model for assembly representation, which could supply necessary information for tolerance analysis and synthesis, kinematic simulation, and assembly simulation. Such a conceptual information model plays an important role for the exchange of information between modeling, analysis and planning systems. Hence, the proposed model could serve as a framework for developing data exchange standards of mechanical assemblies. The proposed model is demonstrated through a case study of a planetary gear assembly.

• Journal of Information Science Theory and Practice
• /
• 제11권1호
• /
• pp.31-48
• /
• 2023

Digital service transformation study is a part of research in the field of digital transformation, which is devoted to exploring the transformations that occur in digital service products, which have been intensely explored in recent years to address digital disruption. Several concepts and definitions of digital service transformation have emerged as a result of an approach from the point of view of digital transformation and digital services concepts. This paper is organized to provide a foundational understanding of digital service transformation terminology. This paper uses the systematic literature review method to compile 52 qualified articles from previous studies. We conduct an analysis and synthesis of articles to answer research questions. The results of this study are a descriptive summary of research in the digital service transformation field, determining digital service transformation terminology and components, and also a proposed digital service transformation model to explain the position of transformation in digital service products in the overall transformation process. We construct this model using the findings of previously determined components synthesis.

• 중소기업연구
• /
• 제41권1호
• /
• pp.97-129
• /
• 2019

기업가정신의 개념을 이해하는데 있어서 일반인들뿐만 아니라 많은 연구자들도 매우 혼란스러워 하면서, '통일된 정의가 없다'거나 '매우 다양하다' 또는 '모르겠다'라고 하는 경우가 많다. 기업가정신을 정의하는데 마치 장님 코끼리 만지듯이 특정 측면을 강조하여 정의함으로써 매우 많은 다양한 정의들이 제시되어 기업가정신을 이해하는데 있어서 혼란스러운 상황이 지속되고 있는 것이다. 기업가정신의 전체적인 개념적 모습을 알 수 있는 모델이 필요하지만 이에 대한 연구도 미흡한 상태로 보인다. 이에 본 연구는 선행연구에서 기업가정신 및 기업가를 '스스로를 고용(self-employment)하는 사람'으로도 정의하고 있음에 착안하여, 기업가를 자연인이 아니라 하나의 직무(경력/직업)로 보고, 선행연구문헌에서의 기업가정신과 기업가에 대한 정의들을 직무관점과 역량모델관점에서 분석적으로 재고찰하였다. 연구결과 선행연구에서 제시된 기업가정신의 정의의 내용을 직무관점에서 담당자(주체)와 직무행동방식(동사), 직무내용(대상), 직무성과(결과/효과), 기타 측면으로 분류할 수 있었다. 그리고 기업가에 대한 정의들에 포함된 내용들을 역량모델관점에서 개인차원의 심리적 특질들과 '기업가가 수행하는 직무 측면 요인들로 나누고, Spencer and Spencer(1993)의 역량모델에 비추어 기업가직무역량모델을 도출하였다. 본 연구는 직무관점과 역량모델관점을 토대로 선행 연구에서의 기업가정신의 정의와 기업가의 정의들을 재해석하고 체계화하여 앙트라프러뉴어십(기업가정신) 개념 전체를 조망하고 이해할 수 있는 개념적 통합모형을 도출하였다. 본 연구의 앙트라프러뉴어십 통합모형은 기업가정신에 대한 기존의 장님 코끼리 만지듯이 정의하고 논의했던 한계를 극복하는데 기여할 수 있을 것이다.

• 한국산업보건학회지
• /
• 제25권1호
• /
• pp.95-103
• /
• 2015

Objectives: This study was conducted in order to better understand the conceptual model and Stoffenmanager nano module and apply it to the synthesis and packing processes of nanomaterials. Methods: Site visits were conducted to five nanomaterial production processes. Product and exposure variables were investigated in these workplaces. Hazard banding and exposure classification of the synthesis and packing processes of nanomaterials were conducted using documents and the website of Stoffenmanager Nano. Results: The five sites featured different products, packing tasks, ventilation and local exhaust, and others. The hazards for nano-nickel and copper were classified as E. The hazards for both fumed silica and indium tin oxide were classified as D. The hazard for spherical silica was classified as C. The exposure classes in the synthesis process of nanomaterials ranged from 2 through 4. The exposure classes in the packing process of nanomaterials ranged from 1 through 4. Conclusions: Application of Stoffenmanager nano to the synthesis and packing processes of nanomaterials helped to better understand the control level of the work environment and to suggest appropriate actions. The comparison of each process showed the effect of the production process and handling of solids and ventilation on exposure class.

• 항공우주시스템공학회지
• /
• 제10권2호
• /
• pp.14-21
• /
• 2016

In this study, we proposed a water rocket CULV-1 (Chosun University Launch Vehicle-1). Unlike a conventional water rocket, CULV-1 can perform the booster rocket, fairing, and payload separation like an actual launch vehicle and also the imaging data acquisition. The conceptual and critical design of the proposed CULV-1 have been performed considering the operation characteristics. The verification tests have been performed from subsystem to system level in accordance with the established test specifications and verification procedures. Through the final launch test of the flight model, we have verified the design effectiveness of the proposed separation mechanisms for water rocket applications and the mission requirements of the CULV-1 also have been complied.

• 근관절건강학회지
• /
• 제4권2호
• /
• pp.197-220
• /
• 1997

The lack of a comprehensive theory describing the mechanism of adaptation scientifically has been one of the limiting factors for the development of nursing intervention of patients with chronic illness. Since Roy's theory provides the general conceptual framework depicting adaptation process with structural stimuli and control mechanism, it is appropriate to understand the process of adaptation. But in Roy's theory, the propositions about cognator and regulator as control mechanisms are not clearly defined. For this reason, most of the previous researches applying the Roy's theory have disregarded the study of cognator and regulator. For the patients with chronic illness such as rheumatoid arthritis, it was reported that adaptation states were different for the same stimuli due to the difference of the control mechanism. Moreover in nursing it is important to identify the control mechanism which can be and must be intervened by nurses. It was the Lazarus and Folkman's theory that proposed the control mechanism. They suggested that individual differences in the reaction against the perceived stress are due to the difference in appraisal and coping. Therefore, the synthesis of Roy's and Lazarus and Folkman's propositions might help to clearly understand the mechanism of adaptation. From this point, a theoretical framework has been developed and tested. The subjects were the 297 patients who had been diagnosed rheumatoid arthritis and attended the outpatient clinic. A hypothetical prediction model of adaptation was tested by the covariance structure analysis with PC-LISREL 7.13. As a result, the overall fit was good($x^2$=78.83, p=0.00 ; GFI=0.96 : AGFI=0.90 ; RMR=0.04) for the hypothetical model. In the final model added GA(5, 1), the overall fit was increased ($x^2$=57.82, p=0.003 ; GFI=0.97 ; AGFI=0.93 : RMR=0.036). Except the fact that illness symptoms affected physical adaptation directly, it was supported that focal and contextual stimuli affected physical and psychosocial adaptation through appraisal and coping. Therefore, it was asserted that the synthesis of two theory's propositions was appropriate. So this model would be useful for the theoretical framework in the nursing practice. And this study synthesizing and testing the theory might contribute to establish nursing's scientific base.

• 간호행정학회지
• /
• 제23권2호
• /
• pp.111-117
• /
• 2017

Getting evidence in to practice tends to focus on strategies, theories and studies that aim to close the gap between research knowledge and clinical practice. The evidence to practice gap is more about systems than individual clinician decision making. The absence of evidence for administration and management in the organization of healthcare is persistent. Teaching nurses and providing evidence as the solution to evidence-based healthcare is no longer axiomatic. Previous studies have concluded that unit level strategies integrate multi-professional teams with organizational needs and priorities. This 'best fit' approach that characterizes how healthcare is structured and delivered. The published literature shows that increased readiness for change is aligned with integrated approaches informed by conceptual models. The Joanna Briggs Collaboration is the largest global collaboration to integrate evidence within a theory informed model that brings together academic centres, hospitals and health systems for evidence synthesis, transfer and implementation. The best approaches to implementation are tailored to local culture and context, benchmark against international evidence, combine a theory informed model and stakeholder perspectives to improve the structure and processes of health care policy and practice.

• 기술혁신연구
• /
• 제31권2호
• /
• pp.83-110
• /
• 2023

이 연구는 정부의 사회문제 해결형 연구개발사업 진화과정을 통해 사회문제 해결형 R&D 모델이 한국 사회에 자리 잡는 과정을 분석한다. 기업, 과학기술계, 시민사회에도 없었던 사회문제 해결형 R&D 모델이 정부연구개발사업을 통해 형성되고 이 모델에 따라 혁신활동을 수행하는 조직공동체가 전개되는 과정을 살펴볼 것이다. 이를 위해 새로운 혁신모델인 사회문제 해결형 R&D 모델, 그것을 지원·수행하는 조직공동체, 새 모델을 지원하는 제도가 공진화하는 과정을 분석하는 개념적 틀을 제시한다. 그리고 이 틀을 기반으로 사회문제 해결형 연구개발사업이 진행되면서 새로운 혁신모델이 형성·발전되는 과정을 살펴보고 그 의미를 논의할 것이다. 종합에서는 사회문제 해결형 R&D 모델의 활성화를 위한 과제와 정책 방안을 다룬다.

• 한국지역지리학회지
• /
• 제5권1호
• /
• pp.163-185
• /
• 1999

중등 지리과에서의 구성주의적 멀티미디어 활용 수업의 모형 개발과 효과 분석을 위하여 개발 및 실험 연구를 병행하였다. 구성주의적 멀티미디어 활용 수업(CMAI)의 개념적 및 절차적 모형은 구성주의적 수업 이론과 멀티미디어, PIDA 수업 전략을 기반으로 한다. 구성주의적 멀티미디어 활용 수업은 오프라인 수업(offline CMAI)과 온라인 수업(online CMAI)으로 유형화할 수 있다. 오프라인 수업은 다시 프리젠테이션 활용 수업(P/TCMAI)와 CD-ROM 활용 수업(C/RCMAI)으로 구분할 수 있다. CD-ROM 활용의 오프라인 수업 유형별(강의 수업, 집단 교수, 개별 학습, 협동 학습) 효과 분석을 위해서 '한국의 하천과 평야'에 관한 CR-ROM 형태의 오프라인 코스웨어를 개발 적용하였다. 오프라인 수업 유형별 학업 성취도 및 수업 반응도에 대한 변량 분석 결과에 의하면 학업 성취도에서는 수업 유형간에 유의미한 차이가 발생하지 않았으나, 수업 반응도에서는 유의미한 차이가 발생했다.