• 한국식생활문화학회지
• /
• 제25권4호
• /
• pp.400-409
• /
• 2010

This study investigated the food and dietary educational content in primary, middle and high school textbooks in order to provide fundamental data for the development of educational programs on Korean traditional food culture. The research objects consisted of 51 kinds of textbooks (15 kinds of primary school textbooks, 29 kinds of middle school home economics textbooks and 7 kinds of high school home economics textbooks), and the contents related to food and dietary education were counted and analyzed. The content analysis was performed using two categories: application method and subject matter. Application method included texts, cases, visual aids (pictures, photos, illustrations, chart, etc.) and activities, whereas subject matter consisted of seven types (well balanced nutrition and health, understanding of food and nutrition, cooking principles, cooking lessons, traditional foods and culture, others). The results of the application method in primary school textbooks show that visual aids were the most common in all six grades. For the subject matter, 'understanding of food and nutrition' was most abundant in primary school textbooks while 'well balanced nutrition and health' accounted for a large part of the contents in middle school textbooks. However, the contents regarding traditional foods and culture were insufficient in primary and middle school textbooks. These results suggest that educational contents on traditional foods and culture should be added to primary and middle school textbooks and covered in various subjects. Furthermore, high school 'home economics' contents need to emphasize comprehensive food and dietary education and adjust to 'science & technology for life'.

• 경영과학
• /
• 제23권2호
• /
• pp.59-74
• /
• 2006

In this paper, we investigated economic viability of UCA (Ubiquitous Contents Access) technologies from user adoption perspective. UCA technologies are expected to 9et embedded into media and telecom merging services. Embracing new technologies such as UCA technologies, forged through an industry convergence, means opting for a technological innovation that will have technological as well as economic and strategic implications. As such, we adopted user perspective innovation adoption theories to explore key antecedents affecting consumer acceptance of these emerging technologies. Subsequently. using QFD (Quality Function Deployment) method, the impacts of UCA technical functions on user's perceived value enhancements are estimated. The QFD analysis result indicates that the new UCA service technologies could achieve about 42% enhancement on user perceived adoption intention compared to existing digital contents service technologies. The proposed analysis framework and findings suggests significant insights for further research.

• 한국수학사학회지
• /
• 제30권2호
• /
• pp.101-119
• /
• 2017

This paper is a follow up study of [2]. In this paper we analyse the contents of middle school mathematics textbooks published in the 1st National Curriculum Period centered on the concept 'straight line' and discuss how they are different from contemporary mathematics textbooks in view of connectedness of contents, mathematical terms, textbook as a learning material vs. teaching material, relationship between contents of national curriculum and textbooks, and some topics related to direct proportion, function, method of equivalence as a method for solving simultaneous linear equations and so on. The results of our analysis and discussion suggest implications for reforming mathematics curriculum and developing mathematics textbooks.

• 전기학회논문지
• /
• 제66권1호
• /
• pp.82-88
• /
• 2017

Recently recommendation methods need personalization and diversity as well as accuracy whereas the traditional researches have been mainly focused on the accuracy of recommendation in terms of quality. The diversity of recommendation is also important to people in terms of quantity in addition to quality since people's desire for content consumption have been stronger rapidly than past. In this paper, we pay attention to similarity of data gathered simultaneously among different types of contents. With this motivation, we propose an enhanced recommendation method using correlation analysis with considering data similarity between two types of contents which are movie and music. Specifically, we regard folksonomy tags for music as correlated data of genres for movie even though they are different attributes depend on their contents. That is, we make result of new recommendation movie items through mapping music folksonomy tags to movie genres in addition to the recommendation items from the typical collaborative filtering. We evaluate effectiveness of our method by experiments with real data set. As the result of experimentation, we found that the diversity of recommendation could be extended by considering data similarity between music contents and movie contents.

• Elastomers and Composites
• /
• 제48권4호
• /
• pp.276-281
• /
• 2013

acrylic polyol로 개질한 polyester형 polyurethane foam을 quasi prepolymer법으로 제조하였다. 열적 및 동적 기계적 성질은 thermal gravimetric analysis 및 dynamic mechanical analysis에 의하여 분석하였다. 또한 유리전이온도는 differential scanning calorimeter로 측정하였다. Acrylic polyol 함량이 증가함에 따라 TGA에 의해 측정한 열적 안정성은 약간 감소하였다. 그리고 acrylic polyol 함량이 증가함에 따라 저장 탄성률은 증가한 반면에 tan delta 값은 감소하였다.

• 한국콘텐츠학회논문지
• /
• 제9권1호
• /
• pp.407-416
• /
• 2009

경제성 분석에 의한 재무타당성 분석은 이론적으로나 실무적으로 그 타당성이 인정되고 있으나, 할인율 추정이 어려운 관계로 경제성 분석과 결과해석이 실무적으로 쉽지 않다. 따라서 본 연구는 신규호텔 건설 시 경제성 분석에 의한 재무타당성 분석의 구체적인 틀과 실무적용방법 및 기술을 제시하는데 근본적인 목적을 두고 연구하였다. 연구의 결과, 첫째, 대용베타방식에 의한 할인율(자본비용)을 실무적으로 추정하는 방식을 제시하여 경제성 분석결과에 대한 신뢰성과 타당성을 증대시킬 수 있었다. 둘째, 할인율과 현금흐름을 이용한 경제성 분석기법(순현가법, 내부수익율법, 수익성지수법 등)에 의한 재무타당성 분석의 전체적인 틀을 설명할 수 있었다. 셋째, 재무타당성 분석의 각 단계에서 요구되는 실무적인 분석기술을 제시할 수 있었다.

• 한국학교ㆍ지역보건교육학회지
• /
• 제2권2호
• /
• pp.57-78
• /
• 2001

The purpose of this study is to analyze hygiene education contents of elementary schools in Korea, USA, Japan and compare this and to provide with basic material present improvement method when hygiene education contents of elementary schools in Korea are organized. For this purpose the problems as following are selected centering on the hygiene education contents of the 7th education process in Korea and Japan and the hygiene text of public school in California, USA. First, this study tries to analyze the composition classified by 12 guidance contents each grade of hygiene education contents of elementary schools in Korea, USA, and Japan. Second, this study tries to analyze the composition classified by fields(physical, mental, social) of hygiene education contents of elementary schools in Korea, USA, and japan. As a result of the analysis and comparison on the matters stated above, the conclusion as following was gotten. First, as a result of searching the hygiene education contents system of elementary schools in Korea, USA, and Japan classified by 12 guidance contents each grade, the subjects which have good contents composition classified by class step by step were safe life and disease prevention. And the subjects such as growth development and health, physical fitness, drug use and health were weak and the parts such as consumer health and the careers concerned with are not dealt in the present education process of Korea at all. Second, as a result of analyzing the composition classified by fields of hygiene education contents of elementary schools in Korea, USA, Japan, all the three countries put great on physical part. And there are 57 units about mental part in USA, 27 units in Japan, only 17 units in Korea. And this fact reveals that there was lack of understanding about the need of mental part in Korea. This study tries to suggest improvement method as following through the study results stated above. First, as it is grasped in the analysis classified by guidance part of hygiene education contents, community and environment preservation, physical aptitude and stress management are to be emphasized more strongly and about the parts like consumer health and the persons concerned with hygiene new education programs as contents satisfying the need of age are to be inserted or complemented Second, because the hygiene education contents in Korea are still lack in comparing contents of mental parts compared with those of the two countries, the contents proper to the level and the requirement of learners to each grade are to be developed and complemented. Third, hygiene education units which were reduced in the 7th curriculum in Korea are lack compared with those in the two countries. Therefore, it is necessary that teachers should recognize the need of hygiene education so that the hygiene education can be separated and be taught out regularly.

• 한국컴퓨터정보학회논문지
• /
• 제12권6호
• /
• pp.97-104
• /
• 2007

본 논문에서는 오디오를 내용기반으로 분석, 분류, 검색하기 위하여 사용되어 온 특징 추출 기법의 문제점을 제시하며, 새로운 검색 방법을 위해 하나의 전처리 과정을 제안한다. 기존 오디오 데이터 분석은 샘플링을 어떻게 하느냐에 따라 특징 값이 달라지기 때문에 같은 음악이라도 다른 음악으로 인식될 수 있는 문제를 갖고 있다. 따라서 본 논문에서는 다양한 포맷의 오디오 데이터를 내용 기반으로 검색하기 위해 PCM 데이터의 파형 정보 추출 방법을 제안한다. 이 방법을 이용하여 다양한 포맷으로 샘플링 된 오디오 데이터들이 같은 데이터임을 발견 할 수 있으며, 이는 내용기반 음악검색에 적용 할 수 있을 것이다. 이 방법의 유효성을 증명하기 위해 STFT를 이용한 특징 추출과 PCM 데이터의 파형 정보를 이용한 추출 실험을 하였으며, 그 결과 PCM데이터의 파형 정보 추출 방법이 효과적임을 보였다.

• Journal of Information Processing Systems
• /
• 제14권4호
• /
• pp.904-915
• /
• 2018

We demonstrate how social media content can be used to predict the unemployment rate, a real-world indicator. We present a novel method for predicting the unemployment rate using social media analysis based on natural language processing and statistical modeling. The system collects social media contents including news articles, blogs, and tweets written in Korean, and then extracts data for modeling using part-of-speech tagging and sentiment analysis techniques. The autoregressive integrated moving average with exogenous variables (ARIMAX) and autoregressive with exogenous variables (ARX) models for unemployment rate prediction are fit using the analyzed data. The proposed method quantifies the social moods expressed in social media contents, whereas the existing methods simply present social tendencies. Our model derived a 27.9% improvement in error reduction compared to a Google Index-based model in the mean absolute percentage error metric.

• 대한화학회지
• /
• 제22권2호
• /
• pp.105-110
• /
• 1978

産地가 다른 22種類의 國産無煙炭에 含有되어 있는 黑鉛의 含量을 internal standard method와 direct method로 定量分析하였다. 두 方法으로 實驗한 分析結果는 約 $\pm$ 3%內에서 잘 一致하였다. 各 試料中에 含有되어 있는 無定形炭素와 黑鉛性炭素의 含量比는 地域別로 多小 差異가 있으며 聞慶地區가 14${\sim}$24%,大川地區가 12${\sim}$14%, 江原地區가 3${\sim}$5%로서 江原地區에서 産出되는 無煙炭中의 黑鉛含量이 가장 적음을 알 수 있다.