• Title/Summary/Keyword: environmental degree

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A Study on the Family Life Participation of the Secondary Students and Related Variables -Focusing on Comparisons of Male and Female- (중.고등학생의 가정생활 참여도 및 관련변인에 관한 연구 -남.여학생 비교를 중심으로-)

  • 최동숙
    • Journal of Korean Home Economics Education Association
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    • v.8 no.2
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    • pp.15-28
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    • 1996
  • The purpose of this study is to investigate the family life participation and to analysis its related variables focusing on comparisons of male and female in the secondary students. The questonaire included school environmental variables, family environmental variables, the preference degree of Home Economics, sex role attitudes and the family life participation. The participants were 600 middle and high school students but the final data used on this study were 559. For the statistical analysis of this study, fequency, mean, Cronbach’s ${\alpha}$ coefficient, one way ANOVA, t-test and multiple regression were calculated. The results of this study were summarized as follows;1) The degree of family life participation was a little higher than middle level. While the highest participation degree was family activities participation, the participation degree of household work, communication and decision-making, leisure activities were low. 2) The variables that influence on the family life participation were the level of living and preference degree of Home Economics for both male and female.

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Effect of Different Delignification Degrees of Korean White Pine Wood on Fibrillation Efficiency and Tensile Properties of Nanopaper (잣나무의 탈리그닌 정도가 습식 해섬처리 효율 및 나노종이 인장 특성에 미치는 영향)

  • Park, Chan-Woo;Lee, Seo-Ho;Han, Song-Yi;Kim, Bo-Yeon;Jang, Jae-Hyuk;Kim, Nam-Hun;Lee, Seung-Hwan
    • Journal of the Korean Wood Science and Technology
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    • v.43 no.1
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    • pp.17-24
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    • 2015
  • In this study, the effect of delignification degree of Korean white pine wood on fibrillation efficiency by wet disk-milling (WDM) and the properties of thus-obtained microfibrillated cellulose (MFC) were investigated. The effect on the tensile properties of nanopaper was also investigated. The delignification degree was adjusted by repeating 'Wise' method using sodium chlorite and acetic acid. The increase in delignification degree improved fibrillation efficiency, showing the smaller nanofiber dimension at the shorter WDM time. The filtration time of MFC water suspension was increased by the increase of WDM cycles. Tensile strength and elastic modulus of the nanopaper were increased by increasing delignification degree and disk-milling cycles.

A Study on the Research Trend of Elementary Environmental Education through an Analysis of the Network of Author Keywords (저자 키워드 네트워크 분석을 통한 초등 환경교육의 연구 동향 탐색)

  • Kim, Dong-Ryeul
    • Journal of Korean Elementary Science Education
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    • v.36 no.2
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    • pp.113-128
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    • 2017
  • This study aims to investigate the research trend of elementary environmental education. Thus, author keywords were extracted from a total of 197 academic these related to elementary environmental education during two different periods when detailed goals were applied to the 2007 and 2009 revised curriculums respectively, and then this study analyzed the network of author keywords. The results of this study can be summarized as below. Firstly, as a result of analyzing the frequency of author keywords from academic theses related to elementary environmental education, this study discovered 369 author keywords from the period when detailed goals were applied to 2009 revised curriculum. Out of them, it was found that the keyword, 'climate change education', showed the highest frequency, followed by 'environmental literacy' and 'environmental perception', except such central keywords as 'environmental education' and 'elementary school student'. From the period when detailed goals were applied to the 2007 revised curriculum, a total of 394 author keywords were discovered, and the keyword, 'environmental literacy', showed the highest frequency, followed by 'environmental perception' and 'ESD (education for sustainable development)'. Secondly, as a result of analyzing the network of author keywords, this study found out that in the total number of network connections, average connection degree, density and clique, the period when detailed goals were applied to the 2007 revised curriculum was somewhat higher than the period when detailed goals were applied to the 2009 revised curriculum. As a result of analyzing the centrality of author keywords, this study found out that during both the periods, 'environmental perception' and 'environmental literacy' were high in degree centrality and betweenness centrality, except such central keywords as 'environmental education' and 'elementary school student'. As a result of analyzing the components of author keywords as sub-networks, this study discovered 9 components from the period when detailed goals were applied to the 2009 revised curriculum and 6 components from the period when detailed goals were applied to the 2007 revised curriculum. During both the periods, the largest component was composed of keywords high in degree centrality and betweenness centrality.

The Analysis of the Influences on the Satisfaction of Volunteers Participation in Environmental NGO Action (환경 NGO에서 활동하는 자원봉사자들의 참여만족도에 영향을 미치는 요인 분석)

  • Koh, Woon-Mee
    • Hwankyungkyoyuk
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    • v.17 no.1
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    • pp.1-11
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    • 2004
  • The objectives of this study were: a) to measure the satisfaction of who volunteered in the activity, and b) to identify factors related to their satisfaction from the activities, and c) to provide policy implications to improve their satisfaction. This study was based on a literature review and empirical analyses. The empirical analyses have been completed through individual interviews with community residents who volunteer the NGO activities in the Korean Federation for Environmental Movement. The major findings from empirical analysis were as follows: As a result of correlation analysis, nine variables affecting the degree of their satisfaction were "activity time", "sex", "support of family and friends", "understanding of environmental NGO activities and fields of environmental NGO activities", "contact points for the activities", "income and vocation". As a result of multiple regression analysis, the five variables affecting the degree of their satisfaction were "understanding of the NGO activities", "income", "support of family", "marital status", "activity period" and these five variables explained 49.1% of the degree of their satisfaction. Based on the empirical findings, the following suggestions could be offered for the environmental NGO activities. 1) Environmental NGOs should offer resident-friendly programs which may help the residents participate in the NGO activities, so the volunteers can participate in the activities with their family, friends, and neighbors. 2) Environmental NGOs should provide appropriate information and educational supports to community residents, which might facilitate them to have a sound understanding of the NGO activities. And the environmental NGOs should provide diverse activity programs to facilitate participation and to formulate eligible management system for the activities. 3) To enhance the satisfaction of participation, environmental action programs should be organized and conducted through a careful consideration of the status of the community, the characteristics of residents, and so on. To provide better contact points, environmental NGOs should cooperate with religious organizations in communities, social groups, media and so on.

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Evaluation of Runoff Prediction from a Coniferous Forest Watersheds and Runoff Estimation under Various Cover Degree Scenarios using GeoWEPP Watershed Model (GeoWEPP을 이용한 침엽수림 지역 유출특성 예측 및 다양한 식생 피도에 따른 유출량 평가)

  • Choi, Jaewan;Shin, Min Hwan;Cheon, Se Uk;Shin, Dongseok;Lee, Sung Jun;Moon, Sun Jung;Ryu, Ji Cheol;Lim, Kyoung Jae
    • Journal of Korean Society on Water Environment
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    • v.27 no.4
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    • pp.425-432
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    • 2011
  • To control non-point source pollution at a watershed scale, rainfall-runoff characteristics from forest watersheds should be investigated since the forest is the dominant land use in Korea. Long-term monitoring would be an ideal method. However, computer models have been utilized due to limitations in cost and labor in performing long-term monitoring at the watersheds. In this study, the Geo-spatial interface to the Water Erosion Prediction Project (GeoWEPP) model was evaluated for its runoff prediction from a coniferous forest dominant watersheds. The $R^2$ and the NSE for calibrated result comparisons were 0.77 and 0.63, validated result comparisons were 0.92, 0.89, respectively. These comparisons indicated that the GeoWEPP model can be used in evaluating rainfall-runoff characteristics. To estimate runoff changes from a coniferous forest watershed with various cover degree scenarios, ten cover degree scenarios (10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%) were run using the calibrated GeoWEPP model. It was found that runoff increases with decrease in cover degree. Runoff volume was the highest ($206,218.66m^3$) at 10% cover degree, whereas the lowest ($134,074.58m^3$) at 100% cover degree due to changes in evapotranspiration under various cover degrees at the forest. As shown in this study, GeoWEPP model could be efficiently used to investigate runoff characteristics from the coniferous forest watershed and effects of various cover degree scenarios on runoff generation.

A Study on the subjective cognition and conflict degree of work-family balance and family strength of a dual career men (맞벌이 기혼남성의 일-가정 균형의 주관적 인식 및 갈등정도와 가정의 건강성 인식)

  • Yoon, So-Young;Kim, Hye-Jin
    • Journal of Family Resource Management and Policy Review
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    • v.17 no.2
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    • pp.19-35
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    • 2013
  • The purpose of this study is to analyze the effective factors that influence subjective cognition, conflict degree of work-family balance, and cognition of family strength according to general characteristic factors, working environmental factors, and home environmental factors, as well as analyze the relationships among subjective cognition, conflict degree, and cognition of family strength. The main data source for analysis in this study is the Second National Survey of Korean Families by the Ministry of Gender Equality and Family in 2010. The survey includes the analysis of 419 respondents who have a dual income and live with their wife. The collected data are analyzed using SPSS 19.0. The results of the study are as follows. First, subjective cognition of work-family balance is influenced by satisfaction of work, division of housework, and care of family. Second, the conflict degree of work-family balance is influenced by age, working week, and satisfaction with work. Third, the relationship between subjective cognition and conflict degree of work-family balance is a negative correlation. The relationship between subjective cognition of work-family balance and cognition of family strength is a positive correlation but the difference between conflict degree of work-family balance and cognition of family strength is not significant. Finally, for the married men, the working environmental factor is a significant factor for the work-family balance. And the higher the satisfaction of work and division of domestic work, the greater is the balance between work and family. This suggests that they also have a higher cognition of family strength.

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Dielectric sensor for cure monitoring of composite materials (복합재료 경화도 측정을 위한 유전 센서)

  • 김학성;권재욱;김진국;이대길;최진경;김일영
    • Proceedings of the Korean Society For Composite Materials Conference
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    • 2001.05a
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    • pp.219-223
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    • 2001
  • The on-line cure monitoring during the cure process of composite materials is important for better quality and productivity. The dielectric sensor for cure monitoring consists of base film and electrodes. Because the characteristic of dielectric sensor for the on-line cure monitoring is dependent on the base material, width and number of electrode, etc, the dielectric sensor should be standardized. And the selection of base film material of sensor is very important. In order to prevent the measuring errors generated from the increase of environmental temperature, the base film material should have stable dielectric constant with respect to environmental temperature. In this study, the newly developed dielectric sensor for cure monitoring was designed and the dissipation factor which is function of degree of cure was measured using the sensor. The relationship between the dissipation factor and degree of cure with respect to environmental temperature was investigated.

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A Study on Marital Conflict of Wives in Rural Areas (도시근교 농촌주부의 부부갈등에 관한 연구)

  • 김영희;한경혜
    • Korean Journal of Rural Living Science
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    • v.7 no.2
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    • pp.129-138
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    • 1996
  • This study attempted to explore the characteristics of conflicts in marriage life, and to analyze their impacts on global marital satisfaction perceived by wives in rural areas. The survey data was gathered from 151 rural wives. The degrees of three types of conflicts were shown to be low. while in terms of the degree of seriousness, environmental, interpersonal and intrapersonal are in descending order. Especially the degree of the environmental types of conflicts were significantly different across the family life cycle. In order to analyze the relationships between the types of conflicts and the marital satisfaction, logistic regression were performed. It was found that the environmental type of conflict was negatively associated with the likelihood of satisfaction in the marriage life. On the other hand, one of the control variables, the degree of satisfaction on the husband's job, i.e., farming, was positively associated with it.

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Assessment of Natural Environment - I. Selection of Plant Taxa - (자연환경 평가 - I.식물군의 선정 -)

  • 김철환
    • Korean Journal of Environmental Biology
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    • v.18 no.1
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    • pp.163-198
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    • 2000
  • This study aim was to propose plant taxa as an alternative proposal for the purpose of solving many kinds of difficulties occurred in the floral item of environmental impact assessment (EIA) used to date. Plant taxa presented here for environmental assessment can probably be useful in understanding the excellence of natural environment to specific regional space as well as in determining the order of priority as to species preservation. These taxa, selected by the floristic analysis with distributional range, can be classified into five degrees: the fifth degree, characterized by the discontinuous and/or isolated distribution, includes 83 taxa, 76 genera, 41 families; the fourth degree, occurred in only one subprovince as southern and northern plants, includes 314 taxa, 217 genera, 78 families; the third degree, two subprovinces as southern and northern plants, includes 307 taxa, 223 genera, 93 families; the second degree, generally distributed more than 1,000 meter in altitude, a whole subprovince, includes 109 taxa, 92 genera, 43 families; the first degree, at least three subprovinces, includes 258 taxa, 207 genera, 91 families. The taxa mentioned here environmental assessment, therefore, summed up to 1,071 taxa, 559 genera, 142 families from the Korean flora. It is suggested that the taxa belonging to the fifth degree might structually have by far extinctive possibility in respond to environmental damage comparing with other degrees, simply because these have narrow distributional ranges. [Floristics, Korean flora, Geographical distribution, Natural environment, Environmental assessment, Plant taxa].

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A Study on the Satisfaction Degree of Ecological Interpretation Program in Cheonggyechon (청계천 생태해설 프로그램 만족도 분석 연구)

  • Yoon, Sowon;Kang, Suhak;Ku, Bonhak
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.10 no.5
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    • pp.10-19
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    • 2007
  • The objectives of this study are to suggest the future development direction and improvement plan by analyzing the status of operation and satisfaction degree of cheonggyecheon ecological interpretation program. For the purpose, this study used the questionnaire about the satisfaction degree of program which were divided into two groups, adults and children and analyzed the result of program operation from 4th of April to 31 th of October in 2006. The result are as follows; 1. The total degree of satisfaction of adult is more higher than the children's. 2. The result of regression analysis shows the ecological interpretator variable turns out the most influential factor of satisfaction degree of program. 3. The most of visitor prefer the program which can experience diverse sense on the flora and fauna in cheonggyecheon. Therefore, it is needed to develop the program which can take children's fancy and experience diverse sense on the fauna and flora as well as improve the level of ecological interpretation.