• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2003.07a
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• pp.275-277
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• 2003

최근 logic 소자의 gate oxide로 기존의 $SiO_2$, SiON보다 고유전, 작은 누설전류를 가지는 물질의 개발이 중요한 이슈가 되고 있다. 본 실험실에서는 Si 기판위에 $HfO_2$를 바로 증착하는 경우, 기판의 Si이 박막내로 확산하여 유전율이 저하되는 문제점을 인식하고, 기판과 $HfO_2$ 사이에 $AlO_x$를 방지막으로 사용하였다. 이 때, $AlO_x$의 Al precursor는 TMA로 고정하고, 산화제로는 $H_2O$, $O_2$-plasma, $O_3$를 각각 사용하였다. 모든 $AlO_x/\;HfO_y$ 박막에서 매우 우수한 누설전류특성을 얻을 수 있었는데, 특히 $O_3$를 산화제로 사용한 $AlO_x$방지막의 경우 가장 우수한 특성을 보였다. 또한 질소 분위기에서 $800^{\circ}C$ 10분간 열처리한 후, 방지막을 사용한 모든 경우에서 보다 향상된 열적 안정성을 관찰할 수 있었다.

• Smart Media Journal
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• v.9 no.3
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• pp.122-129
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• 2020

The possibility that an asymptotic coronavirus-19 infected person around the world is not aware of his infection and can spread it to people around him is still a very important issue in that the public is not free from anxiety and fear over the spread of the epidemic. In this paper, the K-means clustering algorithm and deep learning-based crowd aggregation were proposed to determine the possibility of contact with confirmed cases of infectious diseases. As a result of 300 iterations of all input learning images, the PSNR value was 21.51, and the final MAE value for the entire data set was 67.984. This means the average absolute error between observations and the average absolute error of fewer than 4,000 people in each CCTV scene, including the calculation of the distance and infection rate from the confirmed patient and the surrounding persons, the net group of potential patient movements, and the prediction of the infection rate.

• Journal of the Korea Convergence Society
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• v.6 no.5
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• pp.99-106
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• 2015

The purpose of this research is to bring supportive ways to reinforce the market competitiveness of fusion industry based on the rapidly arising fusion industries considering system improvement and fusion R&D support. The research has proceeded in the order of setup for competitiveness reinforcing way of fusion industry and deduction for competitiveness reinforcing way based on directivity. It classified the fusion industry into introduction, diffusion and development by time, and suggested expert fusion R&D, open type fusion R&D, customized fusion R&D, system improvement of market entrance and supportive way for public purchase as the supportive way. It's purpose is to lead the entrance into the new fusion market, stabilize to settle into the market and create high value products by resolving difficulties for the market entrance of the new fusion products & service, reinforcing the fusion capability and securing the competitive advantage.

• Journal of the Korean Society for information Management
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• v.18 no.2
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• pp.255-272
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• 2001

Generally, a paper book that is digitalized or a method of giving information to user in a form of paper book after digitalization is called ebook. Due to the rapid spread of internet and development of digital information technology, ebook has become an important issue globally. Not only can ebook send information efficiently but the price is low and compared to paper books it is more effective in sending information by using technologies like multimedia. However, ebook markets have problems to grow because there are different ebook formats. In this study, we will explain about the development of Electronic Book of Korea Standard(EBKS) to solve the problems. The purpose of EBKS is the exact exchange for ebook contents. To archive this purpose, we define the explict logical structure for documents and recommend metadata for doemetic enviroments and XSL-FO to provide high-quality layout. We expect that the establishment of EBKS will greatly contribute to growth of ebook markets by preventing the duplicable investment for contents and technologies.

• Journal of the Korean Regional Science Association
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• v.36 no.1
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• pp.69-88
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• 2020

There has been an increasing attention to social diversity within communities. Previous studies suggest that social diversity is positively related to social trust and social capital that are intimately related to quality of life. Because of the controversy on social segregation that is an opposite concept of social diversity and is a factor negatively affecting quality of life, more studies on the association between social diversity and quality of life should be undertaken. This study employs a multilevel model to examine the association between social capital and quality of life. We analyzed the association using both the pooled sample and samples splitted based on social class. The empirical result shows that the occupational diversity positively affects quality of life while the income diversity negatively affects quality of life. These results provide useful policy implications for setting urban policy directions.

• Journal of Energy Engineering
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• v.25 no.3
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• pp.114-129
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• 2016

Since the release of mid-term domestic GHG goals until 2020, in 2009, some various GHG reduction policies have been proposed to reduce the emission rate about 30% compared to BAU scenario. There are two types of modeling approaches for identifying options required to meet greenhouse gas (GHG) abatement targets and assessing their economic impacts: top-down and bottom-up models. Examples of the bottom-up optimization models include MARKAL, MESSAGE, LEAP, and AIM, all of which are developed based on linear programming (LP) with a few differences in user interface and database utilization. The bottom-up model for electric sector requires demand management, regeneration energy mix, fuel conversation, etc., thus it has a very complex aspect to estimate some various policies. In this paper, we suggest a bottom-up BAU model for electric sector and how we can build it through step-by-step procedures such that includes load region, hydro-dam and pumping storage.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.2
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• pp.523-528
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• 2008

Franchising is a business sector which can be enlarged to a large scale in retailing business. Franchising has expanded its realm of business into realestate business and education business, starting from hospitality business. In franchising, the management of customers is a critical issue, so many franchising companies actively implement the CRM system to improve customer relationship. Therefore, this research focuses on the intention of franchising companies about the implementation of the CRM system. The information system used for managing franchising business is defined as Franchising Information Systems(FIS). In this research, the impact of technological level, educational level and utilization strategy of FIS on the ability of FIS use were analyzed. In addition, the impact of the ability of FIS use on the intention of franchising companies about the implementation of the CRM system was analyzed. The results from the research reveal that the utilization strategy of FIS does not affect the ability of FIS use, but technological level and educational level have an effect on the ability of FIS use. The ability of FIS use has influence on the intention of franchising companies about the implementation of the CRM system.

• Fire Science and Engineering
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• v.30 no.3
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• pp.67-72
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• 2016

The development of flame retardants aims to prevent the spread of fire and reduce the casualties caused by flammable and toxic gases generated during the combustion of building materials used in the interiors of multi-use facilities. Flame material application provides flame resistance to a silica sol in an organic-inorganic hybrid material by flame retardant adhesive or coating by producing a sol-gel method. The conventional flame retardant materials, non-flame retardant material is applied with Halogen freeway. In particular, the basic physical properties of conventional adhesive coating improves the heat resistance, enhances the durability fire and heat, and expands the halogen free flame retardant of building materials.

• Journal of Information Management
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• v.39 no.4
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• pp.1-20
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• 2008

The purpose of this study is to scrutinize the copyright issue under Open Access environment. A survey has been carried out to investigate researchers' awareness and recognitions about such issues. For this, bioinformatics researchers were selected and surveyed. Descriptive statistics method is employed for analysis of collected data. The findings of this study summarized as follow. (1) Although the researchers regarded the Open Access a positive initiative, the perceptions about open access were very low. (2) The researchers demanded possession of copyright depending on type of research information. (3) Many agencies did not required the transfer of copyright to the researcher. Thus, there is a possibility of dispute regarding copyright issues between researchers and agencies. (4) The researchers are willing to participate in open access activity on the assumption that their study is used in legitimate objective. On the basis of these findings, suggestions are added in as an impetus to lower the barrier against a copyright and higher the approach to information seekers and information providers.

• The Journal of the Korea Contents Association
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• v.20 no.3
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• pp.209-222
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• 2020

The purpose of this paper is to predict the future changes of housing through the Delphi technique. The targets to predict were set by housing type, housing space, housing demand, and architectural technology. The results were as follows: ① The influences of social and value perspectives on the change of housing type, space, and demand would be high, on the other hands, the influence of political perspective would be low. ② In terms of housing type, the increase in demand for downsizing housing for high-rise buildings and the possibility of realizing remote medical support services and homecare using big data are highly predicted. That is, ③ it is anticipated that IoTs will have a significant influences on future housing changes, and ④ enactment of co-housing and related laws by the sharing economy, services for maintenance through the supply of high-rise and high-density homes, housing support for residents, and advanced lease markets by developed architectural technology are expected as anticipated forms of future housing.