• 대한산업공학회지
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• 제39권3호
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• pp.222-232
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• 2013

In recent years, 'technological fusion or convergence' has drawn a lot of attention of innovation researchers and governmental policy makers as the driving force of technological innovation and industrial growth. There are, however, few studies on the analysis of longitudinal trends of technological convergence and its comparison between global and national level. In this study, with the citation data of about 18 million articles, we analyzed 1) the growth of representative convergence research areas, 2) the convergence of citing patterns between research fields, and 3) the changing trend of diversity index of all research fields. We conclude that technological convergence in korea shows the relatively strong orientation to the combination of neighboring fields than that of heterogenous fields in comparison to global trend. In particular, the relatively weak activity of cognitive science and the low level of mutual exchange between arts/humanities/social sciences and natural/engineering sciences in Korea are emphasized.

• Nuclear Engineering and Technology
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• 제55권8호
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• pp.2844-2853
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• 2023

A sophisticated Bayesian multilevel model for estimating group bias was developed to improve the utility of the ASTM E900-15 embrittlement trend curve (ETC) to assess the conditions of nuclear power plants (NPPs). For multilevel model development, the Baseline 22 surveillance dataset was basically classified into groups based on the NPP name, product form, and notch orientation. By including the notch direction in the grouping criteria, the developed model could account for TTS differences among NPP groups with different notch orientations, which have not been considered in previous ETCs. The parameters of the multilevel model and biases of the NPP groups were calculated using the Markov Chain Monte Carlo method. As the number of data points within a group increased, the group bias approached the mean residual, resulting in reduced credible intervals of the mean, and vice versa. Even when the number of surveillance test data points was less than three, the multilevel model could estimate appropriate biases without overfitting. The model also allowed for a quantitative estimate of the changes in the bias and prediction interval that occurred as a result of adding more surveillance test data. The biases estimated through the multilevel model significantly improved the performance of E900-15.

• Ocean and Polar Research
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• 제28권4호
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• pp.415-423
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• 2006

Interannual variation and long-term trends of coastal sea surface temperature (SST) in Korea were investigated by analyzing 27 coastal SST time series from 1969 to 2004. Long-term linear increasing trend was remarkable with the rate over $0.02^{\circ}C/year$ at almost all the stations. The slope of long-term linear trend was larger at the stations along the eastern coast than in the western and southern regions. It was also noticeable that there was a common tendency of interannual variability with the period of 3-5 years at most of the stations. SST was lower in the 1970's and early 1980's while it was higher in the 1990's and early 2000's after the increase in the late 1980's. The pattern of the interannual variability of SST was similar to that of air temperature. Increasing trend of minimum SST in winter was obvious at most stations na it was larger along the eastern coast, while the linear trend of maximum SST in summer was less definite. Therefore, the decreasing tendency of annual amplitude was mainly due to the increasing tendency of SST in winter.

• 한국컴퓨터정보학회논문지
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• 제23권4호
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• pp.9-16
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• 2018

In this paper, we propose wide range of categorizes Artificial Intelligence technology as Learning, Inference, and Cognitive. Also, it analyzes 758 cases of open patents. For an analysis, target technologies were selected and categorized into specific areas to collect information about the patents. After removing noise, the patent information for each technology such as patent assignees and IPC code, was analyzed to evaluate the maturity of technology, the way ahead for research and development and the trends in core technology. This research presents directions of Artificial intelligence technology research and trend analysis of core Artificial Intelligent technology using quantitative analysis of patent information. Also Artificial intelligence technology requires technological development necessity through close cooperation in diverse fields.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2004년도 하계종합학술대회 논문집(1)
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• pp.233-236
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• 2004

With the internet(World Wide Web) widespread among people after 1995, Information Communication Network, which is basic structure of the internet, is rapidly changing into fiber optics communication. The information conveyed through the internet is being diversified - from simple information based on text to bulky multimedia information such as auido & video data. So the demand for higher speed, hish storage Router is on the crease. This research aims to analyze the general trend of the patent by systematical, multilateral and segmented analysis of the technology's flow and trend, the present technological position of status and the distribution map of the technology by country, technology area using chart and graph.

• 한국포장학회지
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• 제14권2호
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• pp.73-79
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• 2008

Compared to the 2007 packaging contest winners' work of Korea and Japan, their packaging trends have been studied in this study. Environmental-friendly packaging have been turned out the main trend at the same time in both Korea and Japan markets in this comparative research. In applied technology aspects, there was a remarkable distinction compared to packaging technology of both countries; Korea's technology was evaluated out to be lagged behind Japan by three or four years in this study. The road map for future packaging development plan shall be suggested by following comparative studies from the annual packaging contests which are supposed to be held in many developed countries.

• 기술혁신연구
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• 제19권1호
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• pp.177-201
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• 2011

본 연구는 특허정보활용과 연구개발활동 사이의 관계에 대한 분석을 위해, 국가연구개발사업을 대상으로 특허기술동향조사가 국가연구개발사업의 성과에 미치는 영향을 기술적 성과인 특허성과에 집중하여 그 영향을 추정하였다. 정부는 2005년부터 국가연구개발사업에 대하여 특허기술동향조사사업을 시행하고 그 범위를 확대해 왔다. 특허기술동향조사사업은 국가연구개발사업의 기획단계 또는 과제 선정단계에서 특허 동향 및 선행기술에 대한 정보를 제공하여 중복 투자, 유사기술 개발의 가능성을 줄여 국가연구개발사업의 효율성과 성과를 제고하기 위한 사업이다. 이러한 특허기술동향조사가 국가연구개발사업의 기술적 성과에 어떠한 효과를 지니는지를 투입요소, 개발주체의 특성, 자금의 공급자 요인을 고려한 모형을 사용하여 추정하였다. 2005년부터 2008년까지 국가연구개발사업의 성과 자료와 특허기술동향조사사업에 대한 자료를 바탕으로 특허기술동향조사 사업의 효과를 추정한 결과, 선행기술조사는 국내 및 해외 특허의 출원 및 등록 성과를 유의하게 제고하는 것으로 밝혀졌다. 이러한 결과로부터 국가연구개발사업에서 특허정보활용을 통해 기술적 성과의 제고가 가능하다는 점을 알 수 있다. 이는 특허정보활용을 통해 국가연구개발사업의 효율성과 효과성이 제고되었음을 보여준다.

• 한국위성정보통신학회논문지
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• 제12권3호
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• pp.86-92
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• 2017

본 논문에서는 최근 글로벌 위성산업의 수익 현황을 토대로 위성산업 각 분야별 동향을 분석하고, 이러한 동향을 바탕으로 향후 예상되는 위성산업 분야의 전개 방향과 미래 기술개발을 고찰하였다.

• Environmental Analysis Health and Toxicology
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• 제16권2호
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• pp.103-114
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• 2001

Worldwide trend of waste treatment technology is rapidly transferring from "incineration system" to "gasification & melting system" which can derive the resources from waste and charge no more environmental burden to nature. And therefore it is necessary for our country to adopt gasification & melting system urgently to present the land pollution and lack of landfill area. Among several gasification and melting processes Daewoo-Thermoselect gasification and melting system is the representative process which can transfer waste to resources such as sin-gas, molten slag, metal hydroxide, mixed salt and sulfur through the process of compaction, degasification, gasification and melting.

• 기술혁신학회지
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• 제4권2호
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• pp.172-181
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• 2001

This is a paper to understand the economic effects of the measurement standards by translog cost function. The data, as of the end of 1998, are from a survey of 514 firms in Korean industry. The analysis is compared to that of 1992 data analysis to check the trend. There are a little differences on the estimated coefficients, but there is no basic difference on trend of economic effects. The Investment on measurement standards have been contributed positively on the major managerial indicators such as productivity, profit, and so on.