• 한국콘텐츠학회논문지
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• 제5권2호
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• pp.257-266
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• 2005

인터넷과 컴퓨터 기술의 발전으로 다자간에 실시간 회의를 진행할 수 있는 컨퍼런스(Conference) 서비스에 대한 관심이 높아지고 있다. 본 논문에서는 SIP(Session Initiation Protocol)를 기반으로 하여 presence 서비스를 포함한 음성과 영상 회의가 가능한 컨퍼런스 시스템을 설계 및 구현하였다. 이를 위해 구성한 시스템의 요소는 컨퍼런스 UA(User Agent)의 기능을 가진 사용자 시스템과 Presence 서버 및 컨퍼런스 서버이다. Presence 서비스는 SIP PUBLISH 메시지를 이용한 Publication 방식을 사용하여 사용자들 간의 다양한 상태 정보 파악과 컨퍼런스로의 초청 및 참여가 쉽도록 구현하였다. 다자간의 연결 설정 및 관리를 담당하는 컨퍼런스 서버에는 컨퍼런스 이벤트 패키지(Conference Event Package)를 포함시켜 동적으로 변화하는 컨퍼런스 정보 및 참여자의 정보를 SIP의 등록(Subscription)과 알림(Notification) 기능을 통해 제공하도록 하였다.

• 미생물학회지
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• 제25권1호
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• pp.57-66
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• 1987

E. coli의 한 변종안 LeB 850 strain을 MNNG되 저해하여 MMS에 대해 증가된 빈감성을 갖는 변종들 분리하다. 이 들에 대해 효소 황동도, 간단한 알켈화제 시약에 대한 띤감성을 조사하고, bacteriophage을 이용한 숙주세포 재활성도 능력 평가 알칼화제 실시하여 이 들을 확정지었다. E. coli의 변종인 5-62뉴 3-methyladenine DNA glycosylase II의 효소 활능도가 전혀 없었으며, 알킬화제 시약인 M:ING와 1\1MS에 대한 매우 증가된 민감성을 보였다. 또한 이 변종 5-62는 MMS가 처리된 phage charon 35-을 숙주내에 셔 새황성화 시키는 능력이 현저히 부족하였다. 변종 5-62에서 MMS에 대해 증가 된 저항성을 주는 MMS+ gene을 cloning 하였다. 재조합 plasmid인 pMRG 1은 변종 5-62에서 MMS에 대한 민감도달 감소시켰으나 MMS에 대한 민감도는 변화 시키시 몫했다. 이 plasmid를 포착한 변종 5-62는 0.5$\mu$g/ml의 MNNG를 $37^{\circ}C$에서 2 시간 처리 하였을때 MMS의 저항성을 보다 촉진시켰다. 재조합 plasmid인 pMRG 1이 alk A 변이와 ada 변이를 회복시키지 못했으나, MMS가 처리된 파지를 재활성화 시키는 능력은 이 plasmid가 없는 변종보다 증가시컸다.

• 대한원격탐사학회지
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• 제29권1호
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• pp.69-79
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• 2013

이 논문에서는 저해상도 원격탐사 자료 기반 주제도의 상세화를 목적으로 2단계로 구성된 지구통계학적 통합 기법을 제안하였다. 우선 영역-점 변환 크리깅을 이용하여 저해상도 부가 자료의 상세화를 수행하고, 이 정보는 이후 통합 과정에서 경향 성분으로 이용된다. 그리고 상세화된 부가 자료와 소수의 정밀 관측 자료와의 통합에 가변적 지역 평균 기반 단순 크리깅을 적용한다. 제안 기법은 저해상도 부가 자료의 상세화를 통해 해상도 차이에 따른 정밀 관측 자료와 부가 자료와의 통계적 연관성을 반영할 수 있으며, 정밀 조사 자료와의 통합을 통해 부가 자료의 오류를 보정할 수 있는 장점이 있다. 제안 기법의 적용성 평가를 위해, 지상 관측 강수 자료와 TRMM 자료와의 통합을 이용한 고해상도 강수 주제도 제작 연구를 수행하였다. 실험 결과, 영역-점 변환 크리깅을 통해 원 자료 스케일의 TRMM 강수값을 재생산할 수 있는 다양한 목표 고해상도에서의 상세 정보 추출이 가능하였다. 그리고 이 자료를 정밀 관측 자료와 통합함으로써 정밀 관측 자료만을 이용하는 단변량 공간 예측 기법에 비해 향상된 예측 정확도를 보였다. 따라서 제안 기법은 서로 다른 해상도를 가지는 자료를 대상으로 저해상도 부가 자료의 상세화에 효율적으로 이용될 수 있을 것으로 기대된다.

• 제어로봇시스템학회논문지
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• 제20권2호
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• pp.112-119
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• 2014

A force support system is composed of capital components such as combat equipments, supplies and so on to enable constant fighting power capability. Private technology level evaluation is on the rise as an important spin-on method in force support systems, which requires 92% of total munitions requirements, to obtain superior private technology. The evaluation of the private sector technology level on Korean force support systems has been conducted for the first time as follows: this research chose 38 items to be acquired within 2-3 years and grouped either identical or similar technology among those 38 items. A technology evaluating method was established based on the analysis of domestic and foreign technology level evaluations. Evaluation was performed by a Delphi survey from 180 private and military experts. To obtain an objective index and raise political availability, a technology system map and standard document were developed and applied to all 38 items.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.2441-2444
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• 2003

This paper describes fabrication of a micro cell counter integrated with an oxygen micropump and Sephadex G-25 beads counting experiment. The device utilized a phototransistor, microwindow, and light source of microscope for beads detection. Microheater and microchannel were used for pumping and guiding of beads to the microwindow. Counting capability of the device was tested with a peristaltic pump and the measured signals (${\sim}10\;mV$) with oscilloscope showed peak shape when beads passed the microwindow. Pumping of beads by the oxygen micropump was carried out by heating paraffin, which enveloped manganese dioxide (catalyst), to trigger the decomposition of hydrogen peroxide into water and oxygen. It lasted for 5 min with $7\;{\mu}l$ of wt. 30 % hydrogen peroxide. Beads counting by oxygen micropump showed peaks ($2{\sim}20\;mV$) with $30\;{\mu}l$ of beads sample and the number of peaks by magnitude was acquired.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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• pp.445-449
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• 2005

Various methods to detect the phytoplankton/red tide blooms in the oceanic waters have been developed and tested on satellite ocean color imagery since the last two and half decades, but accurate detection of blooms with these methods remains challenging in optically complex turbid waters, mainly because of the eventual interference of absorbing and scattering properties of dissolved organic and particulate inorganic matters with these methods. The present study introduces a new method called Red tide Index (Rl), providing indices which behave as a good measure of detecting red tide algal blooms in high scattering and absorbing waters of the Korean South Sea and Yellow Sea. The effectiveness of this method in identifying and locating red tides is compared with the standard Ocean Chlorophyll 4 (OC4) bio-optical algorithm applied to SeaWiFS ocean imagery, acquired during two bloom episodes on 27 March 2002 and 28 September 2003. The result revealed that OC4 bio-optical algorithm falsely identifies red tide blooms in areas abundance in colored dissolved organic and particulate inorganic matter constituents associated with coastal areas, estuaries and river mouths, whereas red tide index provides improved capability of detecting, predicting and monitoring of these blooms in both clear and turbid waters.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2001년도 The Pacific Aisan Confrence On Intelligent Systems 2001
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• pp.211-218
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• 2001

This paper introduces a method of constructing expert systems in an integrated environment for automatic software design. This integrated environment may be applicable from top-level system architecture design, data flow diagram design down to flow chart and coding. The system is integrated with three CASE tools, FSD (Functional Structure Diagram), DFD (Data Flow Diagram) and structured chart PAD (Problem Analysis Diagram), and respective expert systems with automatic design capability by reusing past design. The construction way of these expert systems is based on systematic acquisition of design knowledge stemmed from a systematic design work process of well-matured developers. The design knowledge is automatically acquired from respective documents and stored in the respective knowledge bases. By reusing it, a similar software system may be designed automatically. In order to develop these expert systems in a short period, these design knowledge is expressed by the unified frame structure, functions of th expert system units are partitioned mono-functions and then standardized components. As a result, the design cost of an expert system can be reduced to standard work procedures. Another feature of this paper is to introduce the integrated environment for automatic software design. This system features an essentially zero start-up cost for automatic design resulting in substantial saving of design man-hours in the resulting in substantial saving of design man-hours in the design life cycle, and the expected increase in software productivity after enough design experiences are accumulated.

• 기술혁신연구
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• 제13권1호
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• pp.247-263
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• 2005

Prior research in R8ED innovation in Korea has been centered around the 'three-stage development model,' which hypothesizes that the Korean innovation process goes from the introduction (of foreign technology) stage, through assimilation stage to the final modification stage. As Korean economy shifts from traditional industry-led development to innovation-centric development, such an approach loses sight of the whole picture. The current study argues that a new framework is required for adequate analysis on newly arising innovative patterns in Korea, emphasizing source technology development and technology leader strategy. For this purpose, we propose the 'Jigsaw Puzzle Model' of technology development, which is then verified by an in-depth analysis on the innovation processes of 3 representative IT products of Korea, DRAM, TH LCD, and CDMA. The model suggests that Korean innovation model is a dynamic, efficient amalgamation of foreign-acquired and dependent technologies, based on internally accumulated technological resources. The model explains better how Korean firms are achieving a rapid catch-up of technological gaps with advanced nations and are able to transfer from the technology follower to the leader position.

• 한국실내디자인학회논문집
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• 제13권4호
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• pp.188-195
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• 2004

The evolutions of human mental capability and technology opened a new era called "Digital Space." Moreover, Digital Space as technology is already accelerating the process of "self-expansion." The expansion, on the foundation of its conceptual and morphological variety, acquired the potential to furnish various types of spatiotemporal experience. This phenomenon, as a necessary consequence of focusing on the resulting value of the human-space relation which came next to its ontological value, requests the value of the space design as an attempt of various phenomenal experience in the relation of technology, human, and space to be educationally established. From a typological point of view, no true creation exists in any form of design. It is practically impossible to design in the void without any restrictions, and all design is based on preceding examples. This is because production of artificial is based on the universal principles or structure residing in history, namely, typology. Considering Digital Space from technological and cultural standpoints, it can obviously be called a new type of space, and beyond that, it becomes a new type of a methodological tool of design. Thus, the purpose of this study is to systematize the paradigm of the space design in the digital era by studying the concept of space in Digital Space from the standpoints of history and context, that is typology, and in accordance with it, classify the phases of the space design that is led digitally.at is led digitally.

• 한국실내디자인학회논문집
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• 제13호
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• pp.60-71
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• 1997

A study was performed for combination active process between the academical theory and practical design process based on creative thinking process in interior desigv. At first, it was investigated the concepts and characteristics of creativity combined with creativite process of thinking, and also scientific and art characteristics on interior design to be educated together with logical and esthetical concepts required for creative thinking process. In reference with above process, it was systematically established stepwise process of interior design with creative thinking system. As a resualt, creativity in interior design could develop a unique design process combined informations about knowledge and experiences with actual acquirements by individual's experiences. So interior design could be approachable and developed with open-mind and consistently scientific methodology. Also creativity power of interior design could be solved by strategic knowledge acquired by practical experiences and problem solving capability in special branches. Like this, all design activities, including interior design, would be accomplished theoretical background and actual design process under the concepts of practical intension and use. So it would be made creative products by means of detail adapation process based on the theoretical atmosphere, therefore it'll be strongly based on the hardnessing of theoretical value and power. Theory for design process referred to environmental concepts, so including interior design, would not be terminated as for theoretical concepts but be responsible for future of well-developed design by accomplishment of various design adaption method for practical purpose and objectives.