• Title/Summary/Keyword: connection of science contents

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Changes in the Contents of Non-Volatile Organic Acids, Fatty Acids and Poly phenolic Compounds during Air-Curing in Burley Tobacco (버어리엽 건조과정에서 비휘발성 유기산, 지방산 및 폴리페놀화합물의 함량변화)

  • 김도연;배성국;이정일;지상운;김영회
    • Journal of the Korean Society of Tobacco Science
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    • v.22 no.2
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    • pp.107-113
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    • 2000
  • This study was carried out to investigate the changes in composition of the non-volatile organic acid, fatty acid and polyphenolic compounds during air-curing in burley tobacco leaves, and the effect of curing methods on the contents in air-cured leaves. The air-cured variety, (Nicotiana tabacum cv KB108) was normally grown at the Chonju tobacco experiment station in 1998. Plants designated for the each curing methods were harvested on the same date, and the ripe leaves for primed curing were harvested at the tenth leaf position from the top on the stalk. The major compounds of non-volatile organic acid and fatty acid were malic, citric, oxalic, palmitic, and linolenic acid. The concentrations of malic acid, unsaturated fatty acids, chlorogenic acid and rutin in cured leaves were remarkably decreased during curing, while citric acid was increased. The changes of these compounds showed the similar pattern during both primed and stalk curing. In connection with curing methods, the contents of malic, linoleic and linolenic acid were higher in excessive cured leaves than those in primed cured or stalk cured leaves, while the content of citric acid was lower in excessive cured leaves than that in primed cured or stalk cured leaves.

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Differentiation Strategies for a Women Portal Site: An Empirical Study (여성 포탈 사이트의 차별화 전략에 관한 실증 연구)

  • Kim, Hyun-Soo;Kim, Na-Rang;Hong, Soon-Goo
    • Information Systems Review
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    • v.4 no.2
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    • pp.169-189
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    • 2002
  • The recent survey shows that female web-suffers in Korea make up to 45.3% of total netizens and this growth will be continued. While the market in women portal sites is spotlighted recently, a brand power of a women portal site is still weaker to compete with other general portal sites. To be competitive, the women portal site should implement differentiation strategies. The primary objective of this research is to suggest the differentiation strategies for a women portal site based on the 6C (contents, community, commerce, connection, communication, and customizing). To achieve this goal, the questionnaire is posted on the web site and 348 samples are analyzed. As a result, the 15 differentiation strategies that are validated via the web-survey are presented. The results of this study are expected to help companies develop appropriate strategies for women Internet users.

Analysis and Evaluation of the Earth Science Content Relevance in the 7th National Science Curriculum (제7차 과학과 교육과정 지구과학 내용의 적정성 분석 및 평가)

  • Lee, Yang-Rak;Kwak, Young-Sun;Kim, Dong-Young
    • Journal of the Korean earth science society
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    • v.26 no.8
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    • pp.759-770
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    • 2005
  • The purpose of this study is to examine the Earth science content relevance of the 7th national science curriculum. For this purpose, we (1) analyzed science curriculum or content standards of Korea, California, England and Japan, (2) compared science textbooks of Korea and Japan, (3) conducted a nationwide survey to gather opinions from students, teachers, professors and textbook authors about the relevance of the science curriculum and textbooks. According to the results, the Earth science contents of the 7th national science curriculum were not appropriate in terms of the objectives of science curriculum and the needs of students and society. The main reasons include the equal division among physics, chemistry, biology and earth science, iack of connection due to fractionation of units, overly strict application of spiral curriculum, and redundant amount of activities and concepts to cover in the textbook. Major suggestions fir securing the relevance of Earth science contents are as follows: First, the science contents and the size of units at each grade level should be determined according to the students' characteristics, not by equal portion rule. Second, the excessive overlapping and repetition of contents due to the spiral curriculum should be avoided. In addition, the number of activities should be reduced and the quality of required science activities should be improved. Third, to raise students' interest in Earth science, real-life applications and real-world Earth science contents should be emphasized including natural disasters, safety, universe and space exploration, and natural resources. Lastly, considering one of the relevance criteria is feasibility, supports for schools and science teachers are needed to realize the goal of the intended science curriculum.

An Improved Method of Character Network Analysis for Literary Criticism: A Case Study of

  • Kwon, Ho-Chang;Shim, Kwang-Hyun
    • International Journal of Contents
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    • v.13 no.3
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    • pp.43-48
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    • 2017
  • As a computational approach to literary criticism, the method of character network analysis has attracted attention. The character network is composed of nodes as characters and links as relationship between characters, and has been used to analyze literary works systematically. However, there were limitations in that relationships between characters were so superficial that they could not reflect intimate relationships and quantitative data from the network were not interpreted in depth regarding meaning of literary works. In this study, we propose an improved method of character network analysis through a case study on the play . First, we segmented the character network into a dialogue network focused on speaker-to-listener relationship and an opinion network focused on subject-to-object relationship. We analyzed these networks in various ways and discussed how analysis results could reflect structure and meaning of the work. Through these studies, we strived to find a way of organic and meaningful connection between literary criticism in humanities and network analysis in computer science.

A Comparative study on difference in life satisfaction and user behavior of N-screen Service (N스크린 서비스의 이용행태와 삶의 만족도 비교연구)

  • Chang, Hyung-Jun;Kim, Dong-Woo;Kim, Kwang-Ho
    • Journal of Digital Convergence
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    • v.13 no.10
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    • pp.59-68
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    • 2015
  • This study compared and analyzed the connection use, using behaviors and life satisfaction of paid users and free users in accordance with the business models of convergence N-screen service providers. It also analyzed factors that influence users' satisfaction at a personal life level, a relationship-based life level and a group-based life level. The study result showed the different connection use levels of broadcast contents by paid and free users of the N-screen service have a statistically significant meaning. The result also showed the personal satisfaction level of paid users is higher than that of free users. It also turned out that factors that influence life satisfaction differ according to whether or not the users paid for the service. Also, academic background and content consumption expenses affected life satisfaction level of free users while connection use of broadcast contents affected the one of paid users. This study provided an insight on the current domestic N-screen market situation and suggested business strategies which could help find business models.

On the Chaeg-mog-nog: a book catalog written by Hangul character (한글로 된 "칙목녹"에 대하여)

  • Yun Byeong-tae
    • Journal of the Korean Society for Library and Information Science
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    • v.5
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    • pp.31-54
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    • 1978
  • In this study, the Chaeg-mog-nog was analysed and studied. Chaeg-mog-nog is one of the rare book catalog which written purely by Hangul character. In this catalog, 89 kinds (over 500 books) were recarded, included 21 kinds of Korean Hangul novels. Except the 30 kinds of boohs, many similar and same titles and contents of works are remained. The compiler of this book catalog was unknown. But, according to the characteristic of the collection and the calligraphic style of this catalog, the compiler shall be woman who may have some connection between the royal palace.

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Analysis on Continuity between the 2015 Revised Elementary Intelligent Life Curric ulum and Sc ienc e Curric ulum for Grades 3-4 (2015 개정 초등학교 슬기로운 생활과 3~4학년 과학과 교육과정의 연계성 분석)

  • Park, Jisun;Chang, Jina;Jin, Ye Eun
    • Journal of Korean Elementary Science Education
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    • v.41 no.2
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    • pp.267-282
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    • 2022
  • This study aims to analyze the continuity and sequence between the intelligent life curriculum for grades 1-2 and the science curriculum for grades 3-4 with a focus on knowledge and inquiry process skills. The results demonstrate that contents related to science in the intelligent life curriculum consisted of only 10 out of 32 elements. Five elements were related to the science curriculum for grades 3-4 and limited to the 'life sciences' area. Particularly, the intelligent life curriculum did not address topics related to 'matter' and 'motion and energy'. Developmental connection was established in the 'life sciences' area and dramatic changes were noted for the topics related to 'earth and space' area. In terms of inquiry process skills, the levels of observation, measurement, inference, and communication naturally increased, whereas a developmental connection was noted between the intelligent life and science curricula. Classification can be viewed as a developmental link; however, viewing the classification as scientific from the epistemic perspectives was insufficient. In the case of expectation, a gap was observed in both curricula due to the absence of expectation activities in the intelligent life curricula. The study discussed the implications for securing the connection between the intelligent life and science curricula on the basis of these results.

Analysis of Agenda-setting Changes in Alpine Agricultural of Uljin-gun Using Text-Mining - Focusing on the Keywords of Mass-media, Blog·Cafe - (텍스트마이닝 기법을 활용한 울진군 금강송 산지농업 의제설정 변화 - 매스미디어와 블로그·카페 키워드를 중심으로 -)

  • Do, Jee-Yoon;Jeong, Myeong-Cheol
    • Journal of the Korean Institute of Rural Architecture
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    • v.24 no.3
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    • pp.47-57
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    • 2022
  • This study attempted to grasp the status and perception of Uljin Geumgangsong by grasping mass media issues and user perception using big data, and to present basic data when constructing monitoring using user perception by examining the establishment relationship of agenda setting from a time-series perspective. The results of collecting and analyzing text data that can identify mass media and visitor awareness are as follows. First, both mass media and visitor keywords were related to the importance of the value and meaning of Uljin Geumgangsong. Second, in the case of the connection network, Geumgang Pine Agriculture was centered, but in the case of difference in perception between mass media and visitors, such results were derived due to the object of interest. Third, in the case of the connection relationship structure, the connection strength was strong because there were many overlapping contents of mass media. Fourth, as a result of the centrality analysis, both mass media and visitor-aware keywords were positively recognized as spaces created and maintained through institutional support, and objective perception could be grasped by finding hidden keywords. Fifth, as a result of time series analysis, it was possible to grasp the flow through the issue keywords that appeared by period, and unlike the past, it was recognized as a place for tourism and travel. Finally, as a result of examining whether the agenda setting is consistent, there is a mass media influence, so it is thought that more diverse and more information and publicity are needed by utilizing it.

Varietal Difference in the Occurrence of Grey Leaf Tobacco (연초grey엽 발생의 품종간 차이)

  • 이철환;진정의
    • Journal of the Korean Society of Tobacco Science
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    • v.17 no.2
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    • pp.120-125
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    • 1995
  • Varietal difference in the occurrence of grey leaves in upland diverted from paddy field were investigated with several flue-cured tobacco varieties in Korea. Grey leaves caused by Fe, Mn and Cl toxicity were occurred in all varieties used in this experiment. The variety, NC82 and KF113, however, were more sensitive than other varieties to the toxicity. It's revealed that grey leaves had little effects on the contents of total sugar, nicotine and total nitrogen. NC82 and KF113 were increased in the ratio of occurrences in the paddy soils which had a tendency to concrete with the passage of days after transplanting. NC82 showed high occurrences of grey leaves in each of variety used and it was estimated that this variety had a traits of easy occurrences of grey leaves, and it might be presumed that there would be a close connection between the ratio of occurrence and amounts of absorbed causal materials accumulated in plants and tobacco varieties on the occurrence of grey leaf tobacco.

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The Comparative Study of Incoterms 2020 and 2010 in International Physical Distribution

  • KIM, Jin-Hwan
    • Journal of Distribution Science
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    • v.20 no.4
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    • pp.101-110
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    • 2022
  • Purpose: This study is a comparative study to examine the differences between Incoterms 2010 and Incoterms 2010 through a study on the revision contents and conditions of Incoterms 2020. Research design, data, methodology: This study is composed of 5 chapters through literature study. Chapter 1 is an introduction, and Chapter 2 explains the significance and change of standard trading conditions. Chapter 3 compares Incoterms 2020 and 2010. Chapter 4 deals with major revisions and considerations of Incoterms 2020, and Chapter 5 mentions conclusions and implications. Results: In comparison with Incoterms 2020 and Incoterms 2010, first, the selection of the correct Incoterms rules was emphasized through the introduction; second, the division and connection between the sale contract and the ancillary contract were more clearly explained; and third, each Incoterms An explanatory note was presented by improving the existing guidance note for rules, and finally, the order of clauses within individual Incoterms rules was changed to further emphasize delivery and risk. Conclusions: This study pays attention to the understanding of academic content related to standard trade terms and conditions and how usefully it can be used in the business process of users in practice.