• 한국CDE학회논문집
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• 제9권1호
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• pp.44-50
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• 2004

Mechanical parts are often grouped into part families based on the similarity of their shapes, to support efficient manufacturing process planning and design modification. The 2-part sequence papers present similarity assessment techniques to support part family classification for machined parts. These exploit the multiple feature decompositions obtained by the feature recognition method using convex decomposition. Convex decomposition provides a hierarchical volumetric representation of a part, organized in an outside-in hierarchy. It provides local accessibility directions, which supports abstract and qualitative similarity assessment. It is converted to a Form Feature Decomposition (FFD), which represents a part using form features intrinsic to the shape of the part. This supports abstract and qualitative similarity assessment using positive feature volumes. FFD is converted to Negative Feature Decomposition (NFD), which represents a part as a base component and negative machining features. This supports a detailed, quantitative similarity assessment technique that measures the similarity between machined parts and associated machining processes implied by two parts' NFDs. Features of the NFD are organized into branch groups to capture the NFD hierarchy and feature interrelations. Branch groups of two parts' NFDs are matched to obtain pairs, and then features within each pair of branch groups are compared, exploiting feature type, size, machining direction, and other information relevant to machining processes. This paper, the first one of the two companion papers, describes the similarity assessment methods using convex decomposition and FFD.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제5권5호
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• pp.231-242
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• 2016

빠른 웹 정보의 변화에 잘 대응하기 위해서는, 사실과 지식이 실제로 유효한 시간과 장소들도 함께 표현하고 그들 간의 관계도 추론할 수 있도록 웹 기술의 확장이 필요하다. 본 논문에서는 그동안 소규모 지식 베이스를 이용한 실험실 수준의 정성 시간 추론 연구들에서 벗어나, 웹 스케일의 대규모 지식 베이스를 추론할 수 있는 병렬 정성 시간 추론기인 MRQUTER의 설계와 구현을 소개한다. Hadoop 클러스터 시스템과 MapReduce 병렬 프로그래밍 프레임워크를 이용해 개발된 MRQUTER에서는 정성 시간 추론 과정을 인코딩 및 디코딩 작업, 역 관계 및 동일 관계 추론 작업, 이행 관계 추론 작업, 관계 정제 작업 등 몇 개의 MapReduce 작업으로 나누고, 맵 함수와 리듀스 함수로 구현되는 각각의 단위 추론 작업을 효율화하기 위한 최적화 기술들을 적용하였다. 대규모 벤치마킹 시간 지식 베이스를 이용한 실험을 통해, MRQUTER의 높은 추론 성능과 확장성을 확인하였다.

• 아태비즈니스연구
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• 제13권1호
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• pp.37-52
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• 2022

Purpose - The objective of this study is to investigate what motivates global FDI inflows in the different economic development level and to clarify the FDI motivation type in the level of qualitative economic growth. Design/methodology/approach - Major macroscopic social·economic factors induced FDI inflows were analyzed using fixed-effect panel regression with 30-year panel data of 28 countries from 1985 to 2014. For analysis in the stage of economic growth, two category of developed and developing countries was used. And to analyze FDI motivation type in the level of qualitative economic growth, 4 shares of GDP; consumption·government·investment expenditure and export, was used as explanatory variable. Findings - In developed country, TFP(total factor productivity) and GDP have a great influence on FDI inflows, and consumption and labor compensation have a slight effect. This result indicates that the market seeking-driven, horizontal type investment is shown along with efficiency seeking investment. In developing country, human capital and TFP is shown to have greater impact on FDI inflows and labor compensation, exports, investment and government expenditures also have impacts. Thus it has confirmed that not only efficiency-seeking vertical investment for using low cost well educated laborer, but also government-driven economic growth and export policies could affect the FDI inflows. Research implications or Originality - The FDI investment decision making of multinational companies is decided by their own purpose. But, in the concept of as follows; 1) FDI is a long-term capital flowing for maximization of economic utility with limited global resource, 2) Thus FDI could be affected by macro socio·economic factors of host country. 3) Also such macro factors is different by each economic growth qualitative level. Therefore macro socio·economic factors of each country could be affected by the qualitative level of their own economic growth. To attract FDI inflows, it is desirable to implement differentiated incentive policies in the qualitative level of economic growth. Furthermore in developing countries it is recommended to implement government driven economic growth policies as follows; fostering well educated human resources, improving technology productivity in the relative lower cost labor market compared to developed countries and boosting international export volume.

• 한국콘텐츠학회논문지
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• 제6권11호
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• pp.172-181
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• 2006

유니버설디자인은 사물을 관찰하는 것으로부터 시작된다. 일상에서 무심코 사용하고 있는 음료용기를 통해 지금까지 발견할 수 없었던 모순이나 불합리성을 인식하고 유니버설디자인을 실천하기 위하여 문제점 도출과 방법에 대하여 사례를 통하여 제시하고자 한다. 최근 음료용기에 대한사용자는 어린이와 노인, 여성과 남성, 일반인과 장애인 등 다양한 계층의 사람들이 사용하고 있다. 그러나 대부분의 제품들과 마찬가지로 음료용기의 설계는 건강하고 평범한 남자를 기준으로 표준화되어 있어 그 기준에 못 미치는 사람 즉, 어린이나 장애인은 Cap을 열 수 없거나 외부의 도움 없이는 마실 수 없는 상황에 처하는 경우가 많다. 본 연구에서는 이러한 문제점들에 착목하여 유니버설 디자인의 관점에서 음료용기를 대상으로 어린이에서부터 고령자에 이르기까지 설문조사를 실시하였다. 연구결과로는 문제점에 대한 정량과 정성적 평가를 하였으며 정량적으로는 설문지 결과를 토대로 빈도분석, 카이스퀘어 검증($X^2$)을 활용하였고 정성적으로는 선행연구결과 자료를 통하여 유니버설디자인 원칙에서 결과를 지적하였다, 그 대안으로써는 음료용기 디자인을 하기 위하여 유니버설디자인의 방법을 개념적 접근에서 사례를 통하여 제시하였다.

• 대한치위생과학회지
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• 제4권2호
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• pp.77-88
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• 2021

Background: In this study, the Capstone Design was applied to the clinical dental hygiene course of the Department of Dental Hygiene, and its effect was confirmed by qualitatively evaluating the students' reflection on the capstone design class experience. Methods: This study was conducted for the "Clinical Dental Hygiene and Practice III" course, in which third year students develop the ability to judge and plan dental hygiene based on problem-solving ability and critical thinking. By applying the Capstone Design within the core curriculum of the class, the students analyzed problems based on their major knowledge of dental hygiene in order to improve their ability to manipulate periodontal instruments, and focusedon the process of developing the contents of periodontal instruments by using them. Results: The application of Capstone Design on clinical dental hygiene and practice III classes increased students' active class participation, and through the problem-solving process, students' learning and confidence improved. Conclusion: The Capstone Design can be viewed as a teaching method that promotes the participation of students in the dental hygiene department and can effectively help their learning and confidence through a problem-solving process.

• 디자인학연구
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• 제20권
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• pp.51-58
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• 1997

다차원적이며 다속 성을 지니는 디자인 대상에 대하여 통합적으로 자료처리가 진행되고, 가시적인 운용이 더해짐으로서 디자인 과정은 보다 효율적이며, 효과적으로 처리되어 궁긍 적으로 시장경쟁을 가지게 되는 것이다. 본 연구에서는 디자인 제의(컨셉트)의 각 단계와 세부 디자인 완료 후 최종 디자인 결과의 평가를 C/S의 컴퓨팅 환경 아래, 효율적으로 접근시키는데 있으며, 특히 선행연구인 디자인 평가의 방법별 비교연구 결과를 바탕으로 컴퓨터 어플리케이션을 연구/개발하여 실제적인 디자인 평가의 실행기반을 조성하는데 연구의 기본 목적을 둔다. 평가 법 특성 정도에서 평가 법(Ⅹ)는 신속성, 평가 법(Y)는 신뢰성, 평가 법(Z)는 중요성을 두드러지게 보이고 있는 점 또한 이에 대한 주관적인 조사와도 대체로 일치되고 있다. 평가방법 별 상관관계 분석에서는 1차 연구에서 보다 강한 상관계수를 보여 영가 설(nullhypothesis)이 부정되고 연구가설(research hypothesis)이 채택되어 평가 법 간의 정적인 상관관계(positive relation)가 있다고 보여 진다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권9호
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• pp.3680-3692
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• 2020

The purpose of this study is to orient users' touchpoints in co-design experience, to identify their need via visualized experience map, to recommend valid design information in online e-customization services. A user-centered co-design experience map (UCEM) is adopted to analyze the relation between users' desire and time spent, so as to evaluate the online co-design experiences. Based on evolutionary algorithm and fuzzy theory, data of this study is collected from 30 participants. The data was analyzed by descriptive analysis in SPSS, and frequency query and word cloud in NVivo. Employing design category and evaluating users' time spent, the findings are that (a) vamp color matching is consistent with interview data; (b) supported by qualitative feedback, the virtual experience map played an important role in the co-design process and the visualized interaction process; and (c) participants prefer to get more information and professional help on color matching and exterior design. Based on the findings in design category, future work should be focused on developing a better understanding of design resource recommendations and multi-stakeholder communication.

• 한국정밀공학회지
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• 제20권6호
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• pp.167-177
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• 2003

In this study, a mathematical nonlinear dynamic model is introduced to predict the damping force of automotive shock absorber. And 11 design parameters were proposed for the sensitivity analysis of damping force. Design parameters consist of 5 piston valve design parameters, 5 body valve design parameters and 1 initial pressure of reservoir chamber air. All of these design parameters are main design parameters of shock absorber in the procedure of shock absorber design. The simulation results of this paper offer qualitative information of damping force variation according to variation of design parameters. Therefore, simulation results of this paper can be usefully use in the design procedure of shock absorber

• 한국도서관정보학회지
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• 제45권3호
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• pp.141-168
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• 2014

공공도서관과 대학도서관을 비롯한 우리나라 문헌정보학계에서는 독서치료에 대한 관심이 증가하고 있고 다양한 독서치료 방법도 적용되고 있다. 하지만 그동안 독서치료 영역에서는 단순하고 획일적인 질문을 사용하여 내담자를 이해하고 진단하는 방법이 주로 사용되어 왔다. 그러므로 독서치료에 적합한 심리평가도구에 대한 개발이 필요한 상황이다. 왜냐하면 독서치료에서 심리평가도구는 프로그램에 대한 효과 검증에 앞서 독서치료사가 치료 대상자를 이해할 수 있는 기본적인 정보원으로서의 역할을 한다. 또한 자료 선정 및 관련 활동을 설계하는 기초가 되는 중요한 도구가 된다. 이에 본 연구에서는 독서치료 효과 측정을 위한 질적 심리평가도구로 활용할 수 있는 면담과 행동평가, 종합평가 보고서 양식을 개발하고, 실제 독서치료 프로그램 장면에 적용한 사례들을 제시하였다.

• 패션비즈니스
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• 제9권1호
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• pp.120-136
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• 2005

The purpose of this study is to analyze consumers' perceived risk which is shown in the process of purchase phase and consumption phase for the counterfeits of fashion luxury brands and to analyze the interrelationship of each type of perceived risk. The research method of the study used a qualitative approach. 6 informants were selected and then an in-depth interview was held with them. Through this process the data on the perceived risk for counterfeits were collected and analyzed. The results of the study are as follows; The perceived level of psychological risk including counterfeits exposure was extremely high; besides, economic risk and performance risk were also perceived. On the contrary, the perceived level of social risk and fashionability loss were relatively low. The risk perception for counterfeits appeared not only on the purchase phase but also on the consumption phase, and when perceived risk existed on the consumption phase, it had an influence on the level of perceived risk on the next purchase phase. However the psychological risk was continuously perceived on both purchase and consumption phase, even if it did not exist on the consumption phase. Psychological risk, economic risk and performance risk were not independent but interdependent. Moreover, the entire level of perceived risk could be controlled by reducing the level of other perceived risks when a certain type of risk was highly perceived.