• Asian-Australasian Journal of Animal Sciences
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• 제19권3호
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• pp.402-405
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• 2006

This experiment was conducted to determine the effect of dietary betaine (0, 0.125%) on performance, carcass composition, pork quality and hepatic betaine-homocysteine methyltransferase (BHMT) activity of crossbred finishing barrows. Three replicates of ten pigs were used for each treatment. The results showed that average daily gain, feed intake and feed conversion were not affected by betaine. Compared with the control group, pigs treated with betaine had a 8.17% (p<0.05) decrease in carcass fat percentage, and a 8.84% (p<0.05) reduction in 10th-rib backfat thickness, but dressing percentage, percentage lean, longissimus muscle area, and average backfat thickness were not affected. There were also no significant differences in muscle color score, marbling score, pork pH value and water loss rate between the control and betaine-treated groups. Hepatic betaine-homocysteine methyltransferase (BHMT) activity was significantly increased by 13.97% (p<0.05) when pigs were offered 0.125% betaine.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 추계학술대회
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• pp.149-153
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• 2012

2012년 교육과학부의 만 5세 유아교육과 보육의 공통과정이 누리과정이다. 첨단 기술로 다가올 미래와 로봇시대의 주역이 될 유아들에게 국가인재의 조기교육과 창의성 교육을 위하여 교육로봇을 사용한다. 이중 링크구조를 갖춘 누리과정 교육로봇의 개발과 제작에 관한 연구가 필요하다. 본 논문에서는 링크구조를 갖춘 누리과정 교육 곤충로봇을 개발 제작한다. 본 논문 연구를 통해 국가인재의 조기교육과 창의성 교육을 통해 국가교육발전과 국가의 로봇혁신을 통한 국가경쟁력 향상에 기여할 것이다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권6호
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• pp.2152-2170
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• 2014

With advances in smart and ICT(information and communication technology) technologies, our life style has been changing dramatically. Now everybody can enjoy the benefits of such technologies in every aspect of his/her daily life. Currently more and more people are trying to have smart devices such as smart phones and tablet PCs so that smart devices become the bare necessities. New smart technologies have created a new concept called smart learning in education area. As educational smart contents become popular, we need quality standards for the contents. Those standards are essential for evaluating the smart contents and suggesting guidance for future smart contents production. Although there are some standards for the existing e-learning environments, to our best knowledge, there are no standards for educational smart contents in the literature. The purpose of this paper is to develop quality standards for educational smart contents. The proposed quality standards are based on the existing quality standards in e-learning environments and include some characteristics of smart learning. For development of quality standards, wide experts group from academy and industry are selected and surveyed. Their responses are analyzed based on thorough statistical analysis so that final quality standards for educational smart contents are developed.

• The Korean Journal of Ecology
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• 제14권1호
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• pp.25-38
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• 1991

Berchemia berchemiaefolia is a native a native rare plant which has been designating as the Natural Monument, No. 266, since 1980. The floristic composition, population structure and maintenance mechanism of the Berchemia berchemiaefolia forest were investigated in conjunction with the habitat consisted of the block field or screes. Through the present study, the authors found a new habitat of Berchemia berchemiaefolia in the northeastern slope on Mt. Kumdansan located at Hajeok-ri, Cheongcheon-myeon, Koesan-gun, chungbuk province. Gravels consisted of the block field belonged to granule, pebble and cobble as the range of grain size, $\Phi$=-1.5~6.6 values. The tree layer of Berchemia berchemiaefolia community was mainly composed of Quercus variabilis, Pinus densiflora and Q. serrata including Berchemia berchemiaefolia and of this community were similar to that of Q. variabilis. By the age distribution, it was considered that the community was a discontinued one as the pattern of distribution was a normal distribution type(N type). Phenological cycle including leafing, blooming and seed-bearing period between both sites of block field and valley or close canopy showed some differences. The seed production of Berchemia berchemiaefolia was 8, 655, 000 seeds/ha/year, but only 406, 000 seeds/ha/year of them were developed as saplings, and only 4 saplings were developed to mature trees.

• 한국초등과학교육학회지:초등과학교육
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• 제33권3호
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• pp.588-596
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• 2014

The purpose of this study is to provide basic data for improving the STEAM class by examining elementary school teachers' difficulties in the STEAM class and discussing solutions. For this research, 25 elementary school teachers in Seoul City and Gyeonggi-do were asked to write their difficulties in the STEAM class in the open-ended questionnaires. After classification of the collected data, an in-depth interview was conducted with one in-service elementary school teacher who is richly experienced in STEAM education to find solutions for each type of difficulties. The study result showed that most of elementary school teachers had difficulties in the STEAM class, due to selection of integrated subjects, production of teaching devices and materials, guidance of group activities, reorganization of the curriculum, assessment and uncooperative co-teachers. One teacher that participated in the interview to discuss solutions for teachers' difficulties was solving the problems in various ways. She said that many of her solutions came from her experience and also, knowledge obtained through a participation in the STEAM training or opportunities to share information with other teachers who belong to the STEAM research institution, was highly helpful.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2006년도 추계 학술논문 발표대회 논문집
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• pp.133-137
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• 2006

Can examine cause that the construction industry is faced in crisis of skill exhaustion in two sides. One is the tribe of actuality production manpower by entry evasion and graying of young man class specially new manpower to the tribe of skill manpower. Another is qualitative decline of skill manpower. Generally, problem of the systematic knowledge tribe and the picking up tribe about new technology etc, exists because learn skill for shoulder beyond in spot. In cutting phenomenon of skill that is depended on personal relationships availability with skilled worker in hereafter, problem that worker who is old or enter through rain skilled worker does not learn all life skill is detected. These problems institute entry of young man class and necessity of systematic vocational education training specially new human strength strongly. This study does presentation of way to promote construction industry entry of young man class and improvement way of vocational education training system that can do to train these by function manpower by purpose.

• 대한가정학회지
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• 제26권4호
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• pp.15-30
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• 1988

The purpose of this study is to collect basic data which will be effective in performing nutrional education. This study was conducted at Taegu area and adjacentrural area from June to July in 1986. The completely answered questionnaires were analyzed for food habits, purchase of food, the sources of nutrition information and general characteristics of housewives of 20's to 50's. The results obtained are summarized as follows ; 1) The major food of breakfast was boiled rice (93.9%). With decreasing level of education and in rural area, the percent of boiled rice was higher. 2) The frequency of eating out with family is higher in urban area, younger age, and nuclear family. 3) The preference for eating between meals appeared in order of bread and cakes, cookies, and the others. 4) The preference for desserts appeared in order of fruits, coffee, the other, coarse tea, adlay tea, and gingseng tea. 5) The purchasing place for vegetables and fruits was market (53.5%) on the whole, but in rural area, the percent of self production was higher (63.6%). 6) With increasing age and decreasing level of education, the percent of accuracy of nutrition knowledge was lower. 7) Sources in the knowledge of nutrition appeared in order of Radio and T.V., relatives, cookbooks, newspapers and magazines, lectures in cooking school. In order to promote nutritional status of family, nutritional education for housewives must be accomplished in the first place.

• 공학교육연구
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• 제22권5호
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• pp.49-55
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• 2019

Folded structure is widely applied in various engineering fields. Many of the Japanese folding fans in the Edo era (1603-1868) have been successfully blended with the processing technology of "natural materials" that is the origin of Japan's "Monodzukuri" (craftsmanship) and its application "artistic originality". The charm of a fan lies in the diversity of stereoscopic expression not born in plane representation. For example, the effects of folds, the expression of the front and back sides flowing from the front to the back by double-sided description, and the two-layer effect of raising the backside from the surface using the permeability of Japanese paper, the calculated depiction are also seen. Moreover, by handling the fan, it also produced an illusion effect which skillfully calculated the change due to movement of the viewpoint. Students experience the natural materials such as Japanese paper, bamboo and starch paste, which are the materials of paint and fan at the time, and processing method, and know the difference with the current one. This study is to verify the effectiveness of engineering education which gains experience by making concrete fans and to understand deeply this traditional technology with the artistry of a Japanese fan at the same time. And we can learn from the characteristics of the fan to Japan's history and culture.

• 농촌지도와개발
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• 제27권4호
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• pp.159-171
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• 2020

This study aims to examine the needs analysis for agricultural management capabilities and farming practices that were emphasized by focusing to the inflow of farmers and the importance of the smooth succession. Data were collected from 134 farm successors. The Borich demand and the Locus for Focus model were hired for the study. Result were as follows. The competency group that the farm successors showed a high educational needs for was financial management. As for the detailed competencies that farm successors showed high educational needs for, based on Borich demand and the Locus for Focus model, the six detailed competencies of financial measures, financial analysis, financial management, sales planning, machine operation, and pest management were common and were derived as priorities. As for the direction of farming practice education for farm successors, based on these analysis results, education on machinery operation in the production sector should be expanded, and the management sector, more systematic and diverse education should be prepared to strengthen financial management capabilities.

• 정보교육학회논문지
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• 제23권3호
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• pp.207-217
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• 2019

컴퓨팅 사고력을 향상시키기 위해 초등학교에서는 블록형 프로그래밍 언어인 스크래치를 활용한 기초 프로그래밍 교육을 하고 있으나 컴퓨팅 사고력에 대한 평가 연구는 초기 단계이다. 따라서 본 연구에서는 스크래치 프로젝트의 코드를 분석하는 방법을 활용하여 초등학생들의 컴퓨팅 사고력의 개념 수준을 평가하였다. 이를 위해 스크래치 코드 분석 자동화 도구인 Dr. Scratch를 활용하여 초등학교 6학년 학생들이 제작한 179개의 스크래치 프로젝트를 분석하였다. 연구결과 초등학생의 컴퓨팅 사고력의 개념수준은 개발자 수준이 많았고, 성별과 작품유형에 따라 차이가 있었고, 논리와 추상화 요소에서 가장 낮은 수준을 보였으며, 프로그래밍 과정에서 컴퓨팅 사고력이 향상되는 것으로 나타났다. 본 연구는 초등학생의 프로그래밍 학습에서 교수방법의 개선과 자기주도적 컴퓨팅 사고력의 평가에 대한 시사점을 제공한다.