• 기술혁신학회지
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• 제5권1호
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• pp.72-89
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• 2002

This paper is based on a belief that, it is the simplest and best way measuring intangibles and knowledge assets on a monetary base, although there are many efforts to measure it. We analysis and compare with accounting, appraisal and valuation standards on Korean, USA and global level each. We conclude that valuation is appropriate for intangibles and knowledge assets, but we should check the standards of valuation on a social base in Korea.

• 한국진공학회지
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• 제2권2호
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• pp.139-144
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• 1993

동적교정방법을 이용하여 $10^{-7}~10^{-10}$torr 영역에서 교정 가능한 초고진공 표준기를 제작하였다. $10^{-6}~10^{-9}$torr L/s 영역의 극미세 유량은 고진공 표준기에 porous plug를 연결하여 발생 제어시켰으며 일정한 배기속도를 유지함이 알려져 있는 refrigerator type cryopump를 이용하여 $3{\times}10^{-11}$torr의 base pressure를 얻을 수 있었다. 이 초고진공 표준기를 이용하여 두 개의 extractor gauge와 자체 제작한 nude 이온게이지들을 교정하고 그 직선성 및 재현도를 살펴보았다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.263-264
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• 2006

City Train Technology that is large and complex system and consists of mechanical, electronic, electric, materials, computer, communication, civil/track etc. is very important area of railway industry, national fundamental industry. The standardization of city train system as a public transportation method and foundation of national economy is very important in order to do effective operation and to get fundamental technology, and the information system of the standards is required to operate the city train system effectively. By building data base of city train system design knowledge using computer-aided system engineering tool-Cradle, the system development issues and the design solutions are used by all engaged persons, and are managed by modeling and documentation. And this system will support architecture design consistently and effectively by applying this system to formalize early development process, to system requirements and configuration management, to system interface analysis and management and to system behavior analysis etc.. This study is for construction of data base of system design knowledge through making data base of many kinds of standards using CASE tool based on System Engineering Process, and introduces a model to support concurrent engineering for all engineers involved in system development allowing access to standard DB through Web from anywhere and at anytime.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.261-262
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• 2006

City Train Technology that is large and complex system and consists of mechanical, electronic, electric, materials, computer, communication, civil/track etc. is very important area of railway industry, national fundamental industry. The standardization of city train system as a public transportation method and foundation of national economy is very important in order to do effective operation and to get fundamental technology, and the information system of the standards is required to operate the city train system effectively. By building data base of city train system design knowledge using computer-aided system engineering tool-Cradle, the system development issues and the design solutions are used by all engaged persons, and are managed by modeling and documentation. And this system will support architecture design consistently and effectively by applying this system to formalize early development process, to system requirements and configuration management, to system interface analysis and management and to system behavior analysis etc.. This study is for construction of data base of system design knowledge through making data base of many kinds of standards using CASE tool based on System Engineering Process, and introduces a model to support concurrent engineering for all engineers involved in system development allowing access to standard DB through Web from anywhere and at anytime.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.259-260
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• 2006

City Train Technology that is large and complex system and consists of mechanical, electronic, electric, materials, computer, communication, civil/track etc. is very important area of railway industry, national fundamental industry. The standardization of city train system as a public transportation method and foundation of national economy is very important in order to do effective operation and to get fundamental technology, and the information system of the standards is required to operate the city train system effectively. By building data base of city train system design knowledge using computer-aided system engineering tool-Cradle, the system development issues and the design solutions are used by all engaged persons, and are managed by modeling and documentation. And this system will support architecture design consistently and effectively by applying this system to formalize early development process, to system requirements and configuration management, to system interface analysis and management and to system behavior analysis etc.. This study is for construction of data base of system design knowledge through making data base of many kinds of standards using CASE tool based on System Engineering Process, and introduces a model to support concurrent engineering for all engineers involved in system development allowing access to standard DB through Web from anywhere and at anytime.

• 대한공간정보학회지
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• 제3권2호
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• pp.83-90
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• 1995

국가지리정보체계의 표준화는 정보의 공동활용 및 상호운용성의 확보 등을 이유로 중요한 존재로 부과되고 있다. 이의 표준화는 현재 구체적으로 추진되고 있는 현재 국제적으로 추진되고 있는 OSE/RM을 참조하여 발전할 수 있으며 이의 구조에 맞는 국가 표준의 제정이 요구된다. 현재 추진하고 있는 국가지리정보체계 표준화는 국가 기본도 표준화와 공통데이터교환포맷 표준화가 있으며 국가 기본도 표준화에서는 지형지물 코드 및 속성 부분데이타 모델링 등을 추진하고 있고 공통데이터교환포맷 표준화에서는 국외표준의 국내수용으로 그 기본 방향을 유지하고 있다.

• 한국정밀공학회지
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• 제11권4호
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• pp.106-113
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• 1994

Household electrical appliances should be designed to satisfy safety standards. An expert system is implemented to support the design process. The general-purpose expert system shell. ART-IM which is running under MS-DOS environment, is used to construct the knowledge-base. A set of rules has been extracted from the EN 60 335-1 that is British standard specification for the safety of household and similar electrical appliances. The main focus of this paper is on codes that have systematic and mormative structures. The internal structure of the safety standard is analysed to improve the process of rule extraction.

• 한국도로학회논문집
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• 제19권2호
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• pp.67-74
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• 2017

PURPOSES : The objective of this study is to ascertain the curing period of cementless cold central plant recycled asphalt base-layer, using mechanical analyses and specimen quality tests on the field. METHODS : Cold central plant recycled asphalt base-layer mixture was produced in the plant from reclaimed asphalt, natural aggregate, filler for the cold mix, and the modified emulsion AP using asphalt mix design and plant mix design. In order to examine the applicability of the curing period during the field test, the international standards for the possibility of core extraction and the degree of compaction and LFWD deflection were analyzed. Moreover, Marshall stability test, porosity test, and indirect tensile strength test were performed on the specimens of asphalt mix and plant mix design. RESULTS : The plant production process and compaction method of cementless cold central plant recycled asphalt base-layer were established, and the applicability of the optical moisture content for producing the mixture was verified through the field test. In addition, it was determined that the core extraction method of the conventional international curing standard was insufficient to ensure performance, and the LFWD test demonstrated that the deflection converges after a two-day curing. However, the back-calculation analysis reveals that a three-day curing is satisfactory, resulting in a general level of performance of dense asphalt base-layer. Moreover, from the result of the specimen quality test of the asphalt mix design and plant mix design according to the curing period, it was determined that the qualities satisfied both domestic and international standards, after a two-day curing. However, it was determined that the strength and stiffness after three-day curing are higher than those after a two-day curing by approximately 3.5 % and 20 %, respectively. CONCLUSIONS:A three-day curing period is proposed for the cementless cold central plant recycled asphalt base-layer; this curing period can be demonstrated to retain the modulus of asphalt-base layer in the field and ensure stable quality characteristics.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2012년도 제42회 동계 정기 학술대회 초록집
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• pp.554-554
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• 2012

Controlling the size distribution of gold nanoparticles (NPs) is of great importance due to the fact that their properties are strongly dependent upon the size distribution as well as the size itself. In the citrate reduction method for gold NP synthesis, the citrate works as (1) a reducing agent, (2) a surfactant, and also (3) a weak base: it raises the pH of the whole reaction mixture. Here, we have extensively studied the all three roles of the citrate, by adding other reagents separately (NaBH4, CTAB, and NaOH) for the independent control of the three roles of the citrate. Among the roles of the citrate, that as a weak base was found to be the most critical parameter affecting the size distribution of gold NPs and the size distribution became much more improved with the increase of the solution pH, while adding a supplementary surfactant or reducing agent resulted in the formation of less homogeneous NPs.

• 한국초등과학교육학회지:초등과학교육
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• 제23권2호
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• pp.93-100
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• 2004

To get an appropriate and meaningful performance assessment outcomes and to provide the base of essential elementary educational evaluations, we had tried to establish achievement standards, assessment standards and had developed appropriate assessment tools in 「Intelligent Life」 course of the elementary school in this study. The following things were taken into account to establish achievement standards, assessment standards and to develop assessment tools. First, managing deeply not only cognitive domain but also the basic inquiry skills and affective domain, all-round educational properties of integrated courses were likely to come out. Second, evaluating instructional processes as well as instructional results, we had developed assessment standards in elementary 2nd grade's 「Intelligent Life」 course. Third, developing assessment standards on the basis of the 7th Curriculum, we had examined both text book and teacher's guide to promote effectiveness of field application. The type of an assessment tools had been developed variously, considering the characteristics of the elementary lower grades and properties of elementary 2nd grade's 「Intelligent Life」 course. We had developed assessment tools to observe and evaluate practical achievement levels, placing great importance on the types of an assessment tools including observing, narrative of inquiry, report, etc. As a result of investigation of elementary teachers' understandings of the developed achievement standards, assessment standards, and an assessment tools, were revealed in the affirmative on the whole.