• Title/Summary/Keyword: design papers

검색결과 880건 처리시간 0.023초

Microprocessor에 의한 NOVA의 Emulator 설계 (Design of NOVA Emulator by Microprocessor)

  • 송영재
    • 대한전자공학회논문지
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    • 제13권2호
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    • pp.28-33
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    • 1976
  • 최근, Microprocessor가 염가로 입수가능함에 따라 광범위한 분야에 걸쳐서 사용되고 있다. microprocessor를 유효하게 사용하면 컴퓨터 시스템의 설계가 용이해진다. 이 논문에서는 MMI-6701을 사용하여 NOVA의 Emulator를 설계 하였으며 연구의 성과로서는 NOVA를 Microprocessor로 대치하므로서 IC의 수가 약 3분의 1로 대치할 수 있었고, 또 Emulator의 효율화를 위하여 PROM의 Micro명령은 32bit로서 구성하여 4종류의 명령형식으로 설계 되였다. In recent years, Microprocessor have the use of extended wide fiexd because of obtainable to low price. Design of computer system be easy to do by this microprocessor apply validly. This Papers: NOVA Emulator designed by use of MMI-6701. As a result of this studies, quantity of IC changed with about a third part by NOVA exchanged with Microprocessor. Micro Instruction of PROM consist of 32bit that designed Instruction Format of four kinds.

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계층적 특징형상 정보에 기반한 부품 유사성 평가 방법: Part 2 - 절삭가공 특징형상 분할방식 이용 (Part Similarity Assessment Method Based on Hierarchical Feature Decomposition: Part 2 - Using Negative Feature Decomposition)

  • 김용세;강병구;정용희
    • 한국CDE학회논문집
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    • 제9권1호
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    • pp.51-61
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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 second one of the two companion papers, describes the similarity assessment method using NFD.

계층적 특징형상 정보에 기반한 부품 유사성 평가 방법: Part 1 - 볼록입체 분할방식 및 특징형상 분할방식 이용 (Part Similarity Assessment Method Based on Hierarchical Feature Decomposition: Part 1 - Using Convex Decomposition and Form Feature Decomposition)

  • 김용세;강병구;정용희
    • 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.

한국 의료건축연구의 근거기반설계에 대한 최근 연구동향 (Status Quo of Evidence-Based Design Research and Its Research Trends in Korean Healthcare Architecture)

  • 김덕수;권준범
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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    • 제20권2호
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    • pp.7-16
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    • 2014
  • Purpose: The purpose of this study is to provide understandings about EBD research trends in Korean healthcare architecture research. Method: The systematic literature review was conducted, while comparing the characteristics of research papers in Journal of Korea Institute of Healthcare Architecture with EBD related research papers among them. Results: It is found that the difference of research method utilized between healthcare research in general and EBD research. Specifically, a research method most utilized in general is a field study. In EBD research, however, literature review is most frequently used. Implications: This study can be used as a reference point for further development of EBD research in Korean healthcare architecture. In addition, research results can be used as a communication tool with healthcare specialists such as doctors and consultants in a healthcare project team. Thus, this study is anticipated to play a preliminary role for the development of healthcare architecture design in Korea.

공기조화, 냉동 분야의 최근 연구 동향 - 1998년 1999년 학회지 논문에 대한 종합적 고찰 - (Recent Progress in Air Conditioning and Refrigeration Research - A Review of papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 1998 and 1999 -)

  • 이재헌;김광우;김병주;이재효;김우승;조형희;김민수
    • 설비공학논문집
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    • 제12권12호
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    • pp.1098-1125
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    • 2000
  • A review on the papers published in the Korean Journal of Air-Conditioning and Refrigerating Engineering in 1998 and 1999 has been done. Focus has been put on current status of research in the aspect of heating, cooling, ventilation, sanitation and building environment. The conclusions are as follows. 1) A review of the recent studies on fluid flow, turbomachinery and pipe-network shows that many experimental investigations are conducted in applications of impingement jets. Researches on turbulent flows, pipe flows, pipe-networks are focused on analyses of practical systems and prediction of system performance. The results of noise reduction in the turbomachinery are also reported. 2) A review of the recent studies on heat transfer analysis and heat exchanger shows that there were many papers on the channel flow with the application to the design of heat exchanger in the heat transfer analysis. Various experimental and numerical papers on heat exchanger were also published, however, there were few papers available for the analysis of whole system including heat exchanger. 3) A review of the recent studies on heat pump system have focused on the multi-type system and the heat pump cycle to utilize treated sewage as the heat source. The defrosting and the frosting behaviors in the fin-tube heat exchanger is experimentally examined by several authors. Several papers on the ice storage cooling system are presented to show the dynamic simulation program and optimal operation conditions. The study on the micro heat pipes for the cooling of high power electronic components is carried out to examine the characteristics of heat and mass transfer processed. In addition to these, new type of separate thermosyphon is studied experimentally. 4) The recent studies on refrigeration/air conditioning system have focused on the system performance and efficiency for new alternative refrigerants. New systems operating with natural refrigerants are drawing lots of attention. In addition to these, evaporation and condensation heat transfer characteristics of traditional and new refrigerants are investigated for plain tubes and also for microfin tubes. Capillary tubes and orifice are main topics of research as expansion devices and studies on thermophysical properties of new refrigerants and refrigerant/oil mixtures are widely carried out. 5) A review of the recent studies on absorption cooling system shows that numerous experimental and analytical studies on the improvement of absorber performance have been presented. Dynamic analysis of compressor have been performed to understand its vibration characteristics. However research works on tow-phase flow and heat transfer, which could be encountered in the refrigeration system and various phase-change heat exchanger, were seemed to be insufficient. 6) A review of recent studies on duct system shows that the methods for circuit analysis, and flow balancing have been presented. Researches on ventilation are focused on the measurement of ventilation efficiency, and variation of ventilation efficiency with ventilation methods by numerous experimental and numerical studies. Furthermore, many studies have been conducted in real building in order to estimate indoor thermal environments. Many research works to get some information for cooling tower design have been performed but are insufficient. 7) A review on the recent studies on architectural thermal environment and building mechanical systems design shows that thermal comfort analysis is sitting environment, thermal performance analysis of Korean traditional building structures., and evaluation of building environmental load have been performed. However research works to improve the performance of mechanical system design and construction technology were seemed to be insufficient.

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운전재활과 관련된 연구에 관한 고찰 (A Study of Research on Related Driving Rehabilitation)

  • 김보라;이현진
    • 대한통합의학회지
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    • 제2권3호
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    • pp.23-30
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    • 2014
  • Purpose : The purpose of this study was to grasp the general status and trend of the driving rehabilitation research focusing on interested topics, study subjects, therapeutic approaches, study designs, etc. Methods : It targeted 18 papers published in the RISS (Research Information Service System) from 2000 to 2014, and performed a descriptive statistical analysis by classifying these papers to topics, study subjects, study forms, study designs, study fields, and researchers. Results : As a result of the analysis, for the study form in the driving rehabilitation field, the rate of experimental papers was 61.1%, the highest. Major study subjects turned out to be occupational therapists, the disabled, and the aged, in order. For the study quality and design, the rate of survey and non randomized-single experimental study, which correspond to stage IV, was the highest, and the general study quality was found to be low. For the study field, the rates of the roles and recognition of occupational therapists, evaluation on driving ability of the disabled, and institutional improvement and future measures were the highest, each of which being 16.7%. Conclusion : Through this study, major study subjects and study quality in the driving rehabilitation field could be grasped, and it could be found that for development of the driving rehabilitation field, higher quality researches on more various study subjects would be needed in the future.

당뇨병에 관한 국내 간호연구 분석 (An Analysis of Nursing Research on Diabetes Published in Korea from 1981 to 2000)

  • 홍영혜;김명애
    • 기본간호학회지
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    • 제8권3호
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    • pp.416-429
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    • 2001
  • The purpose of this study was to analyze research trends and to suggest future directions for nursing research on the diabetes in Korea. The method was a review of 97 nursing research papers on diabetes published between 1981 and 2000. Analysis included year of publication, academic theses or not, research design, key words and the results. The results of the analysis can be summarized as follows : The number of the nursing research papers on diabetes has been increasing. Of those paper analyzed, it was found that 64 (65.97%) were master's theses, and 58 (59.79%) were descriptive or correlational studies. The most frequent key word was client behavior. Client behavior as the dependent variable was reported to be influenced by various causal variables but the results were not consistent. Nursing interventions reported as effective included education, exercise therapy, camps, and telephone coaching. Conclusion: We question whether the concepts, measurement scales, and theories used in these research papers were appropriate for Korean clients with diabetes. Development of concepts and theories for Korean clients is necessary.

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돌봄 측정 관련 국내 간호학 연구 문헌고찰: 양적 연구를 중심으로 (A Review of the Korean Nursing Research Literature with Focus on Quantitative Measurement of Caring)

  • 김정희;박영숙
    • 지역사회간호학회지
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    • 제29권2호
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    • pp.155-169
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    • 2018
  • Purpose: The purpose of this study is to review the quantitative research literature on measuring caring in order to identify overall trends in measuring caring. Methods: Fifty three papers were selected from four databases including RISS4U, DBpia, KISS, and Korea Med. Results: The number of measuring caring papers has increased since 2000. Approximately 60 % of the total papers were descriptive and correlative design researches with convenience sampling. Jean Waston's theory was the most popular conceptual framework, but much of the research tended to be conducted without any conceptual framework. In that kind of research, 'caring' terms were used without definition. The most frequently used term for the concept of caring was nurses' caring behaviors. Also, 'nurses' was one of the most popular subjects. Thirty six measuring caring instruments were used. Twenty were developed in foreign countries and translated into Korean. The others were developed originally in Korean. Interpersonal Caring Technique - Communication Skills Scale, based on the interpersonal process model, was the most frequently used tool. Among the translated instruments, Coates' Caring Efficacy Scale was the most popular. Some instruments were used without validation. Conclusion: These results provide basic data on measuring caring and indicate directions for further research. In particular, validation studies of measuring caring instruments are needed.

A Study on Research Ethics and Education for Aviation Tourism Researchers

  • Hye-Yoon PARK;Soo-Myung WANG
    • 연구윤리
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    • 제5권1호
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    • pp.1-6
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    • 2024
  • Purpose: Compared to the research results that have achieved remarkable growth, research ethics problems that threaten the quality of research. This issue appears not only in Korea but also in research societies worldwide where research competition has risen This study attempted to prepare improvements and institutional implications to establish research ethics in the research field. Research Design, data and methodology: This study examined total 26 prior studies to examine the current status of aviation tourism research ethics in the literature reviews for the finding section. The procedure of data obtaining included the elimination process to screen dissertation papers, conference papers, and internet sources. Results: Researchers must have an institutional mechanism to publish papers after completing education. Research ethics education programs suitable for aviation tourism research should be developed and detailed and clear guidelines for research ethics should be provided. This can prevent research irregularities. Conclusions: It is necessary to create a clear research ethics education for the spread of positive research ethics on aviation tourism researchers. Develop research ethics education and complete long-term compulsory education. Establish a research culture that requires compulsory completion of research education. It is necessary to support continuous education and learning through various research ethics methods.

과학교육에서 인성 관련 연구의 동향 분석 (Analysis of Trends of Character-Related Research in Science Education)

  • 남일균;임성민
    • 한국과학교육학회지
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    • 제37권3호
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    • pp.493-505
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    • 2017
  • 이 연구의 목적은 국내 과학교육 연구 문헌들을 분석하여 과학교육에서 인성 관련 연구의 동향을 조사하는 것이다. 이를 위해 1990년부터 2016년 12월까지 KCI 등재 학술지와 국내 석 박사 학위 논문 중 인성 관련 과학교육 연구 문헌들을 추출하였으며, 이를 연구 출처, 수행 연도, 인성 관련 용어별 연구, 연구 대상, 연구 설계 및 방법, 내용으로 분석하였다. 연구 결과, 총 54편의 KCI 등재 논문과 67편의 석 박사 학위 논문이 추출되었고 이중 인성, 윤리, 도덕을 표제어로 포함하는 연구가 각각 46%, 49%, 5%를 차지하였다. 연도에 따른 분석 결과 2012년을 기점으로 인성 관련 과학교육 논문의 수가 전에 비해 2배 이상 급격히 증가했음을 알 수 있었다. 연구 대상에서는 영재 학생을 대상으로 한 연구가 가장 많았고 인성과 관련된 많은 연구가 영재 교육 중심으로 수행된 것을 알 수 있었다. 2009년을 기점으로 질적 연구와 혼합 연구 설계 논문이 양적 연구 설계의 논문수를 앞서기 시작했다. 연구 방법은 다양한 연구 방법들이 골고루 사용되어 16%에서 19%정도의 비율을 보여 주었고 해석 연구 방법이 12%, 검사 도구 타당성 연구가 2%로 가장 낮은 비율을 차지하였다. 전체 분석 대상 논문들의 핵심어 중에서 대표 핵심어 30개를 추출하여 인성 관련 과학교육 연구 내용을 분석한 결과 자연과의 관계 영역에서 인성과 SSI 등 인성과 관련된 다양한 과학교육 연구의 함의를 확인할 수 있었다. 시간이 지남에 따라 인성 관련 과학교육 연구 내용은 더욱 다양화 되었고 연구 수행 빈도는 증가하였으며 시대적 요구에 따라 새로운 연구 내용들이 등장하였다.