• 한국컴퓨터정보학회논문지
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• 제19권5호
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• pp.79-87
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• 2014

본 논문에서는 분산된 협업 환경을 통합하는 콘텐츠 공유 모델을 제안한다. 확장 가능한 고해상도 디스플레이 자원, 로컬 및 원격 콘텐츠 공유, 다중 사용자 상호작용 및 접근제어 특성들을 통합하여 결합된 하나의 모델을 제공한다. 다중 사용자의 상호 작용은 모든 사용자가 상호 작용이 가능하다는 이점이 있지만, 그로 인해 오버랩이 발생할 수 있다. 그 오버랩을 관리하기 위해 접근 제어를 모델에 적용했으나 작업 흐름의 방해가 가능하다. 따라서 이 두 가지 사항을 중점으로 모델을 평가하기 위해 상호작용성에 대한 이용자 연구를 실시했다. 그 결과를 바탕으로 제안된 콘텐츠 공유 모델은 상호작용과 그 흐름을 방해 하지 않아 작업에 집중할 수 있는 분산 협업 환경을 제공한다.

• 복식문화연구
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• 제10권2호
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• pp.116-131
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• 2002

The purposes of this study were to analyze the lifestyle of women in their 50's and 60's and to provide the basis for the efficient strategy of silver market by classifying women in their 50's and 60's according to lifestyle types and investigating the effect of consumers' lifestyle and demographic characteristics on consumers' clothing buying motived and information sources. In this study, a self-administered questionnaire was distributed to women in their 50's and 60's. 226 questionnaires of 350 were used in the following analysis. The data were analyzed with the SPSS package. The results of this study were as follows. First, lifestyle were analyzed to find out the underlying factors, and then the subjects were grouped according to factor scores by the cluster analysis. Four lifestyle types were defined. They were the traditional family-oriented, the ostentatious purchase, the economical material-oriented, the active economics-oriented type. Second, a consumer's buying motives and information sources in buying clothing were significantly different depending on the consumer's lifestyle. The ostentatious purchase type attached importance to impulse buying and in diversion in clothing buying motives and display in information sources. The economical material-oriented type tend to buy clothes to purchase economically during bargain sales. The active economics-oriented type attached importance to worn out clothing in buying motives.

• 한국반도체및디스플레이장비학회:학술대회논문집
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• 한국반도체및디스플레이장비학회 2004년도 춘계학술대회 발표 논문집
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• pp.179-184
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• 2004

This paper is an overview of the experimental work using a Planar Magnetic Levitation Stage System structure proposed by Dr. Won-Jong Kim in his PhD thesis. Based on his results, we built an Experimental Test Stand (ETS), which enabled us to get accustomed with the new technology and to create new control structures and algorithms. The ETS is controlled by a powerful controller made of 4 DSPs mastered by a PC. This controller structure increases the controller bandwidth up to 10 kHz leading to a better emulation of an analog controller and leaving enough room for further development. Based on analyzing all the factors that can affect the performances of the system, we achieved a great accurate positioning performance of sub-nanometer RMS value.

• 한국농촌건축학회논문집
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• 제10권2호
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• pp.27-36
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• 2008

This study is progressing or suggests effective space planning for rural village area conventional markets that is planning business market modernization process. Rural village area conventional markets of small scale are inputting a lot of efforts and financial resources for activation. Also, I wish to quote activation plan for rural village area conventional markets that face in stagnation. Studied spatial form and conventional market activation factors by space use special quality of rural village area conventional markets for architectural planning plan presentation. Investigated spatial change for several years that appear in Geum-wang conventional market for this. As a result, could deduce plans of space improvement plan for conventional market space positively. Also, through this study, suggest activation plan of conventional market that display similar space type including Geum-wang conventional market. Therefore, environment improvement of conventional market's type and special quality based on space activation elements and need space environment improvement plan the architecture plan in early planning phase of business.

• 한국IT서비스학회지
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• 제14권3호
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• pp.131-146
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• 2015

The communications market can be characterized for its overflow of users, oligopoly business structure, 24/7 open service, incomplete sales, and operation of core platform function. These characteristics have lead users to continuously make complaints and suffer inconveniences, and thus the concept of user protection has come to receive attention. This study aims to propose solutions through communication channeling between businesses and users, based on website construction from the viewpoint of user protection. In particular, a research model was developed to display how the information symmetry of websites can be influential on the satisfaction, reliability, and continuous intention for using communication services. Total of 14 hypotheses were set to measure a significant degree of variables corelation and eight hypotheses were accepted finally. The analysis results showed that information symmetry of telecommunication service websites had a positive effect on intention for continuous usage. Through the research results, it is expected that communication service businesses will be able to consider important factors when constructing websites. Furthermore, the results are expected to be utilized as for ensuring users' continued usage of their communication services.

• 한국산학기술학회논문지
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• 제9권6호
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• pp.1529-1534
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• 2008

최근, 교반기는 화학물질의 교반 및 탈포를 위해 디스플레이, 반도체 업체에서 광범위하게 사용되고 있다. 교반기는 일반적으로 축, 교반조, 감속기어 및 구동 모터로 구성되어 있다. 교반기 설계시의 주요 사항은 회전시의 동적 특성을 평가하는 것이다. 회전시의 동적특성은 진동, 소음 및 열방출로 나타난다. 본 논문은 고속 교반기의 동적 특성을 실험적으로 규명하였다. 진동을 유발하는 주 인자는 회전체의 불균형에 기인한 것임을 알 수 있었으며, 교반 용기 부위의 온도가 전체온도에서 상대적으로 제일 높음을 알 수 있었다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 제36회 하계학술대회 논문집 C
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• pp.2241-2243
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• 2005

Although the boundary image sticking is one of major factors to determine display quality in AC PDP, a reliable measurement method has not reported so far. The boundary image sticking is recognized clearly by our eyes, but it is difficult to compare with adjacent cells by using a measurement method. However, the boundary image sticking can be analyzed by CCD DSLR camera method because this method can distinguish between the boundary cell and the adjacent cells. Moreover, we suggested new driving waveform for the reduction of the boundary image sticking.

• 한국전기전자재료학회논문지
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• 제20권7호
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• pp.620-625
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• 2007

The effects of $Gd_2O_3$ addition and sintering condition on optical and electrical properties of MgO films as a protective layer for AC plasma display panels were investigated. Doped MgO films prepared by the e-beam evaporation have a higher ${\Upsilon}$ (secondary electron emission coefficient) than pure MgO protective layer. Relative density and grain size increased with amount of $Gd_2O_3$ up to 100 ppm and then decreased further addition. These results showed that discharge properties and optical properties of MgO protective layers seemed to be closely related with microstructure factors such as relative density and grain size. Good optical and electrical properties of ${\Upsilon}$ of 0.138, surface roughness of 5.77 nm and optical transmittance of 95.76 % were obtained for the MgO+100 ppm $Gd_2O_3$ protective layer sintered at $1700^{\circ}C$ for 5 hrs.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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• pp.803-803
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• 2002

Several environmental problems have occurred and extremely affected throughout the East Asia region. Satellite imageries and spatial information have been used in the applications of environmental and natural hazard management for years. Sharing these data and resources in the community is considered as one of the optimal solution. It would consequently bring cost saving to all participated countries and eventually be beneficial to mankind as a whole. Encouraged by these factors, ASEAN＋3 Satellite Image Archive for Environmental Study project was submitted by Thailand in the 3rd Senior Official Meeting between ASEAN, China, Japan and Korea (SEOM＋3 Meeting) and approved by the SEOM＋3. The main objectives of this project are to share satellite images, information related to natural resources and environmental issues, and to provide data information services to all ASEAN＋3 countries. The proposed system is basically embedded by distributed system. The network of data users, data providers, and the center will be established using the Internet. User can access, navigate, display, and even download some archived contents. Its service site can be generally categorized into two parts, which are environmental related data archive and the Integrated satellite image catalogue. The extension of web based GIS is also planned for future development so that GIS users can conduct some preliminary analysis directly on line. This presentation will indicate scope of work, system, working scenario, and work plan of the project.

• 설비공학논문집
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• 제17권6호
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• pp.529-535
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• 2005

This study experimentally examines the air-side performance of spiral finned tube heat exchangers. The effects of fin spacing, fin height, and tube alignment were investigated. Reduction of fin spacing decreased the Colburn j factor. However, the effect of fin height on the Colburn j factor was negligible. An increase of tube row decreased the Nusselt number for both staggered and in-line tube alignments. However, the decrease of the Nusselt number for the in-line tube alignment was much more significant than that of the staggered tube alignment. The average Nusselt number of the staggered tube alignment was larger than that of the in-line tube alignment by $10\%$ when the Reynolds number ranged from 300 to 1700. An empirical correlation of the Nusselt number was developed by using geometric parameters of heat exchanger and correction factors. The correction factor considered the effects of tube alignment and number of tube rows on the heat transfer. The proposed correlation yielded a mean deviation of $4\%$ from the present data.