• 한국정밀공학회지
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• 제16권7호
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• pp.132-143
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• 1999

In this study, an intermediate model is presented as a new method for development of a parametric simulation program. This model enables us to analyze effectively the static and dynamic structure of a real production system. The static structure of the real system can be modelled in an entity-relationship diagram and the dynamic structure of the real system in a Petri net. The intermediate model consists of an entity-relationship diagram and a Petri net. Using this intermediate model man can not only reduce the time and cost for simulation program development, but also increase the modelling reliability of the developed simulation program. To show the usefulness of this intermediate model. the intermediate models for two production subsystems, manufacturing sub-system and transport subsystem, are set up.

• 한국CDE학회논문집
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• 제7권1호
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• pp.9-17
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• 2002

The study is insufficient on process planning of the elliptical deep drawing product. Thus, in this present study, the expert system for elliptical deep drawing products was constructed by using process sequence design. The expert system was developed to be based on the general concept of each entity. The system was developed in this work consists of sixth modules. The first one is a shape recognition module to recognize non-axisymmetric products and to generate Entity_list. The second one is three dimensional (3-D) modeling module to calculate the surface area for non-axisymmetric products. The third one is a blank design module to create suggested blanks of three shapes with the identical surface area. The fourth one is shape design module based on the production rules that play the most important role in an expert system for manufacturing. The production rules are generated and upgraded by inter- viewing field engineers, plastic theory and experiments. The fifth and sixth ones are a graphic module to visualize results of the expert system and a post module to rise user's convenience, respectively. According to constructed the expert system for process sequence design, it was possible to reduce the lead time.

• Korea-Australia Rheology Journal
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• 제18권1호
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• pp.31-38
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• 2006

A systematic approach is employed to elucidate the interrelationships among macroeconomic entities such as science, engineering, technology, industry and national economy. Specifically, a conceptual, sequential method has been developed to clearly identify the essential ingredients needed for each macroeconomic entity starting from science to transform to the next one, and all the way to the national economy where the production of added-value is of overriding importance. The results thus obtained can then be utilized for macroeconomists to readily apply the engineering theory and knowledge to various macroeconomics situations, while engineers can likewise utilize the results on top of the microeconomic knowledge already prevalent in many engineering fields in getting better grasp of the seemingly difficult nation's macroeconomic picture. Other peripheral concepts and issues such as the evolutionary development of industry, the perspectives of the $21^{st}$ century civilization, an analogy between macroeconomics and chemical engineering, and national policies for each macroeconomic entity are also presented in this study.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2012년도 추계 학술논문 발표대회
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• pp.115-117
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• 2012

Task based modeling is essential in a construction operation simulation modeling. It allows dealing with local variables or delay factors that affect productivity and improves the reusability of existing operation models. An operation model can secure reality only if it reflects the real construction processes by effectively dealing with zoning issue. However, system users have some difficulties in modeling a construction operation that is consisted of several processes having different production units. Zoning is a major modeling issue when the task based modeling method is implemented using the existing discrete event simulation systems. This paper highlights the difficulty and presents a new method that complements the zoning issues attributed to different production units. The method is described in detail by presenting the flow of entities. It is confirmed that the zoning method effectively deals with the unbalance of production units between processes and facilitates to model an operation model having processes with different production units. The "Zoning module" contributes to increasing accuracy of simulation result.

• Nuclear Engineering and Technology
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• 제15권2호
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• pp.160-168
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• 1983

About 25 years ago, halfway along the recorded history of the neutron as a separate entity, Korea entered the nuclear age and initiated its own neutron research and development programs. Since that time Korean scientists have taken all possible advantages of the special opportunities offered by the neutron. Scientists the world over, in the Far East, hear East, and the West, have adapted these opportunities to their special needs. These needs are manifested in all phases of modern life, including power generation by nuclear means, food preservation, production of new types of food-bearing plants, commercial uses of activation analysis, irradiations, and isotope production, nuclear medicine, industrial quality control through nuclear measurements, and direct use of neutrons in research in many areas including solid state physics, chemistry, physics, biology, and medicine. Research with neutrons has been successfully conducted using nuclear research reactors of all sizes ranging from the very small (∼10 kilowatts) to the very large(50-100 Megawatts). This speaker has teen associated with nuclear research since 1945 and directly with neutron research since 1957. From this continuous research and development activity, he will report on some of the prospects in the second 50 years of the neutron.

• Acta Via Serica
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• 제1권1호
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• pp.119-135
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• 2016

The initial phase of the Mongol invasion resulted in the establishment of relative political stability in the vast expanses of Eurasia, which came under the control of a single political entity - the Mongol realm. This contributed to a fairly rapid restoration of the commercial links and trade routes between the East and the West. During this period, Chinese silk again became available in large quantities in the Western markets. At the same time, the beginning of silk production and manufacturing of silk fabrics in Italy and the fashion flash for these goods in Western countries affected trade between Europe and the Muslim world. The centers of silk production in the Ilkhanid Empire were some provinces of Azerbaijan and Persia, where from it was exported in large numbers along the trade routes of Anatolia and Syria to the Mediterranean ports and further to the west. There are numerous testimonies of European travelers, and Muslim authors related the international silk trade in 13th-15th centuries, ie in the era from the Mongol Ilkhanid Empire till the reign of the Turkman Aqqoyunlu dynasty. One of the most informative documentary sources on this issue are the legislative codes (kanuname) of sultan Uzun Hasan from the Aqqoyunlu dynasty regarding the eastern provinces of the Asia Minor. This article presents and analyzes the information from these documents concerning the whole range of goods related to silk and silk fabrics trade in the period under the consideration.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.583-586
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• 2013

Construction processes are highly repetitive. A resource entity continuously cycles through work tasks that processes or uses resources. Web-CYCLONE (Halpin 1992) has been accepted as a useful tool for modeling and analyzing a specific operation. However the system has a lack of practicality as follows: (1) it does not efficiently record and keep track of operation models in a database; (2) it does not provide the functions which facilitate to retrieve corresponding model and to update local variables of the model using observed data; (3) it does not automate the complex process that executes simulation experiment, analyzes simulation outputs and generates a report on behalf of the practitioners. Therefore, practitioners have a difficulty in reusing, modifying and analyzing the existing operation models. This study introduces a Client/Server based CYCLONE that improves above-mentioned limitations in the existing Web-CYCLONE. The system was illustrated by revising CSPU in practice.

• 한국문헌정보학회지
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• 제47권1호
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• pp.105-124
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• 2013

국내 대통령기록물의 연구 및 활용, 서비스를 위해서는 다양한 대통령기록물의 유형과 포맷에 대한 통합 메타데이터 설계 및 운영이 필요하며, 상이한 메타데이터 구조를 가지고 있는 대통령기록관과 민간 대통령도서관 기념관의 메타데이터 표준화가 요구된다. 이에 이 연구에서는 국내 대통령기록물의 메타데이터 통합 운영을 위하여 통합 메타데이터 설계 원칙과 메타데이터 속성 및 관계를 제안하였다. 메타데이터 설계 원칙은 '대통령기록물 간의 관계 설정 및 설계', '다중 개체 모형을 적용한 대통령기록물 각 개체별 설계', '다양한 유형의 대통령기록물을 기술할 수 있도록 설계', '소장기관의 업무 전주기를 반영한 메타데이터 설계', '하이브리드형 장기보존 메타데이터 설계'이다. 메타데이터 요소는 모든 유형의 대통령기록물들이 공통적으로 지니고 있는 공통속성 요소, 특정 대통령기록물만이 갖는 고유속성 요소, 대통령기록물 생산에 관련된 타 기록물간의 연관 및 참조정보 요소이다.

• 융합정보논문지
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• 제9권7호
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• pp.67-77
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• 2019

많은 중소기업이 Smart Factory를 구축할 때 기업 내 외부의 환경변화나 구성원들의 역량 등 기업이 처해있는 상황에 대한 충분한 고려 없이 구축하고 있다. 그래서 구축 후 활용도와 효과도 낮다. 본 연구는 '중소기업의 환경요인과 흡수역량을 통한 Smart Factory 구축'을 실증연구를 통하여 검증해 보는 것이다. 설문은 Smart Factory를 구축한 중소기업에서 관련 업무를 하는 인원에게 받았다. 연구결과는, 첫째, 기업 내 외부의 환경요인은 기업 내부의 흡수역량에 긍정적인 영향을 미쳤다. 둘째, 기업 내부의 흡수역량은 Smart Factory 구축에 긍정적인 영향을 미쳤다. 위의 입증을 통해서 중소기업에서 Smart Factory를 구축할 때 기업의 내 외부 환경요인과 흡수역량을 바탕으로 Smart Factory 핵심영역을 구축하면 효과적이라는 것이 입증되었다. 향후는 Smart Factory 구축성과의 연구를 하고자 한다.

• 만화애니메이션 연구
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• 통권9호
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• pp.294-309
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• 2005

라틴어의 '영혼', '정신', '생명' 혹은 '활력'에서 유래한 용어인 '애니메이션', 그 오리지널의 의미는 인위적 조작을 통해서 가동성을 제공하는 것으로서 무생물, 비기존의 실체에 생명의 생성 혹은 활력의 편입과 다소 관계가 있었다. 애니메이션 생산에 관계하는 자, 영역을 관련지은 전문가는 활력소로 불린다. 애니메이션 생산의 현재의 세계적인시장은 막대하게 진보하고 있어 확대되고 있다. 국내의 애니메이션 시장은 전면적인 퀄리티로부터 제 3의 세계에서자리 매김 되고 있지만, 실제는 글로벌 시장에서 외국의 애니메이션 제품과 경쟁할 수 있는 고품질 제품이 거의 없다고 하는 것이다. 이 문제는 국내의 애니메이션 기술 및 생산이 현재의 시스템과 함께 이 논문으로 한층 심의 있게 외국·국내의 애니메이션상의 문학 데이터의 비교 분석의미가 있다. 이것은 국제적으로 경쟁력 높은 애니메이션제작의 생산적기지가 될 수 있는 근거일 수 있다.