• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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• pp.372-375
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• 2006

The MSC is a high resolution multi-spectral camera system which is mounted on the KOMPSAT-II satellite. The electro-optic camera system has a refocusing mechanism which can be used in-orbit by ground commands. By adjusting locations of some elements in optics, the system can be focused precisely. The focus mechanism in MSC is implemented with stepper motor and potentiometer. By reading the value of the potentiometer, rough position of the motor can be understood. The exact location of the motor can not be acquired because the information from the potentiometer can not be so accurate. However, before and after certain events of the satellite, like a satellite launch, the direction of the movement or order of the magnitude of the movement can be understood. In this paper, the trend analysis of the focus motor position during the ground test phase is introduced. This result can be used as basic information for the focus calibration after launch. By studying the long term trend, deviation from the best focal point can be understood. The positions of the focus motors after launch are also compared.

• 복식
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• 제55권3호
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• pp.59-68
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• 2005

The purpose of this study is to examine the changing process of hairstyle and the fashion trend of hairstyle in the environment where it is possible to change one's hairstyle easily arid .display oneself in various ways and the interest in hairstyle is increasing. To examine the change of real university girls' hairstyle, I selected commencement pictures of Chungnam University as material. As a method of analysis, I compared and anaylized each time period's fashion trend and the change of real university girls' hairstyle after abstracting formative element of hairstyle on the basis of preceding studies on hairstyle and measuring frequency by element of each time period. Analyzing university girls' pictures showed that many of them had curls when various perms appeared and majority of them had straight style when straight perm and magic iron appeared. When products of hairstyling were on the market and globalization changed sense of beauty, it was highly popular to set up forelock with hairstyling products. In a pluralistic social environment, desire for color aspect other than formative aspect increased. As various hairdyes were developed, hairdyeing was generalized and university girls came to accept it as natural. Fashion trend of each time period and university girls' hairstyle showed generally similar trend. In mid 1980s, curl was popular, and, in late 1980s, straight style and setting up forelock with hairstyling products were on the increase. In early 1990s, the emergence of coating perm which combined perm and hairdyeing increased hairdyeing. In late 1990s, straight style was popular and layers expressed naturalness. In early 2000s, university girls showed off their long hair in various ways and hairdyeing drastically increased.

• 대한예방한의학회지
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• 제18권1호
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• pp.113-123
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• 2014

Objective : This study is aimed to analyze the recent research trend of Sipjeondabo-tang (SJDBT) in Korea. Method : We searched Korean research database by using keyword 'Sipjeondabo-tang'. Databases are Korean Medicine Information System, Research Information Service System and Korean Studies Information Service System. We analyzed studies by research method, publication year, type of journal and subject of the study. Results : By analyzing studies published after 1990, we could find that experimental studies were primarily conducted in SJDBT study. During recent 10 years, the number of toxicity studies and components analysis studies is increasing. Among the SJDBT studies, the number of clinical study was only 1. Conclusion : We explored the recent research trend of SJDBT in Korea. As a result, We suggested three further research ways of SJDBT. Proposed research ways are exploring various effect of SJDBT, observing whether there is a difference of effect according to extracting and drying method, and conducting clinical research of SJDBT.

• 보건행정학회지
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• 제28권1호
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• pp.95-97
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• 2018

Catastrophic health expenditure refers to when a household spends more than 40 percent of disposable income for out-of-pocket-expenses for healthcare. This study investigates the percentage of South Korean household which experienced the catastrophic health expenditure between 2006 and 2016 with the National Survey of Tax and Benefit and the Household Income and Expenditure Survey data. Percentage of households with the catastrophic health expenditure and tread tests were conducted with weight variable. The results of the National Survey of Tax and Benefit and the Household Income and Expenditure Survey showed 2.17% and 2.92% of households experienced the catastrophic health expenditure in 2016. In trend analysis, the National Survey of Tax and Benefit showed a statistically significant decreasing trend in the proportion of households with the catastrophic health expenditure (annual percentage change [APC]=-4.03, p<0.0001). However, the Household Income and Expenditure Survey revealed a statistically significant increasing trend (APC=1.43, p<0.0001). In conclusion, this study suggests that optimal healthcare alternatives are needed for the catastrophic health expenditure and monitoring low-income households.

• 보건행정학회지
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• 제32권1호
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• pp.107-112
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• 2022

Catastrophic healthcare expenditure refers to out-of-pocket spending for healthcare exceeding a certain proportion of a household's income and can lead to subsequent impoverishment. The aim of this study was to investigate the proportion of South Korean households that experienced catastrophic healthcare expenditure between 2006 and 2020 using available data from the National Survey of Tax and Benefit (NaSTaB), Korea Health Panel (KHP), and Households Income and Expenditure Survey (HIES). Trend test was used to analyze the proportion of household with catastrophic healthcare expenditure. In the NaSTaB 2020 data, households who experienced catastrophic health expenditure was 1.73%. Trend analysis was significant with the decreasing trend (annual percentage change [APC], -5.55; p<0.0001) in the proportion of households with the catastrophic health expenditure. Also, in the 2018 KHP and the 2016 HIES, households who experienced catastrophic health expenditure was 2.21% and 2.92% respectively. In contrast, the trend was significantly increased in the KHP (APC, 0.55; p<0.0001) and the HIES (APC, 1.43; p<0.0001). Therefore, the findings suggest the need to strengthen public health care financial support and monitor catastrophic healthcare expenditures, especially for low-income group.

• 지식경영연구
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• 제16권2호
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• pp.29-45
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• 2015

The number of studies on social media has increased rapidly worldwide. There has been, however, little effort to assess the achievements and limitations of social media studies up to present. The purpose of this study is to provide a systematical viewpoint on social media research published by scholarly business-related journals. Our analysis focus on research topic, functionality, targeted media types, methodology, and characteristics. User research receives the most attention, followed by effect research in terms of developmental models of media research agenda. The major methodological trend is online survey. Facebook and twitter are the two most popular mediums studied in literature, and social media is mainly characterized as information sharing as well as relationship building. Two recommendations are suggested in ways to strengthen social media research: more various topics and application areas, and the rigor and diversity of research methods.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1995년도 추계학술발표회논문집(1)
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• pp.293-299
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• 1995

A methodology is applied to identify tile learning trend related to the safety and availability of U.S. commercial nuclear power plants. The application is intended to aid in reducing likelihood of human errors. To assure that tile methodology ran be easily adapted to various types of classification schemes of operation data, a data bank classified by the Transient Analysis Classification and Evaluation(TRACE) scheme is selected for the methodology. The significance criteria for human-initiated events affecting tile systems and for events caused by human deficiencies were used. Clustering analysis was used to identify the learning trend in multi-dimensional histograms. A computer rode is developed based on tile K-Means algorithm and applied to find the learning period in which error rates are monotonously decreasing with plant age.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2018년도 제58차 하계학술대회논문집 26권2호
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• pp.542-543
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• 2018

기존의 부상기술 예측은 주로 정성적으로 이루어졌으나, 이는 많은 비용이 요구된다. 이에 대안으로 개발된 기술의 다양한 정보를 포함하는 특허를 활용한 정량적 방법이 있다. 기존에 특허 출원 건수를 이용한 정량적 예측 방법은 적은 출원이 이루어지는 부상기술 특허를 파악하는데 어려움이 존재한다. 이를 해결하기 위해, 선행연구에서는 추세선의 기울기를 사용하여 부상기술을 예측하였다. 그러나 출원 건수가 많은 핵심기술의 기울기가 크게 도출되므로 여전히 부상기술 파악에 어려움이 존재한다. 본 논문에서는 기술들의 Patent Power를 이용하여 상기 문제를 해결하며, 연도별 Patent Power의 변화를 이용하여 기울기를 구하고 부상기술을 예측한다. 또한, 최다 출원인을 확인하고 경영전략을 제시한다. 실험으로는 AR 분야의 특허 중 USPTO에 공개된 특허만을 사용하며, 부상기술로는 G02B가 도출되었다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 추계 학술논문 발표대회
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• pp.122-123
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• 2018

Although the disaster rate of the industry as a whole is on a downward trend, the disaster rate of the construction industry is on an ongoing trend. Therefore, in this study, we analyzed safety accident statistical data of the construction site over the past three years. As a result of the analysis, the incidence of disasters at small construction sites was very high. And the proportion of disaster occurred for workers who worked in less than 6 months even roughly 92.6%. In addition, as a result of analyzing the form of disaster occurrence, the crash was 34.1% and the fall was 15.1%. The analysis results of these construction safety accidents are to provide as a basic material for developing a policy that can prevent safety accidents and a safety accident prediction model.

• 수산해양교육연구
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• 제27권4호
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• pp.1013-1020
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• 2015

This study was aimed at analyzing the research trends and presenting the future research in fisheries and marine sciences education. This study analyzed 127 papers related with fisheries and marine sciences education among total 970 papers from 1988(Vol. 1(1)) to 2015(Vol. 27(3)) in 'The Journal of Fisheries and Marine Sciences Education'. The results were as follows. Firstly, researches related with fisheries and marine sciences education have been actively studied from 2013 to the resent. Secondly, career vocation education and subject matter education were the most in the contents on fisheries and marine sciences education. Thirdly, literature reviews and content analysis were used the most in the research method on fisheries and marine sciences education. Lastly, most researchers(82.68%) belonged to university, and from around 2008, multiple-author research began to increase quite a bit in comparison with single-author research.