• Title/Summary/Keyword: Trend comparison

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Comparison of Quality Analyses of Domestic and Imported Wheat Flour Products Marketed in Korea (시판 중인 우리밀 및 수입밀 밀가루의 품질 및 특성 비교 분석)

  • Kim, Sang Sook;Chung, Hae Young
    • The Korean Journal of Food And Nutrition
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    • v.27 no.2
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    • pp.287-293
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    • 2014
  • The physicochemical characteristics of 4 domestic wheat flour products were compared to those of 4 imported wheat flour products marketed in Korea. The contents of moisture, ash, protein, total dietary fiber (TDF), color (L, a, b), whiteness, solvent retention capacity (SRC), water absorption index (WAI), water soluble index (WSI), pasting characteristics by rapid visco analyzer (RVA), and principle component analysis (PCA) were analyzed. The domestic wheat flour products were composed of higher content in ash and protein, compared to the imported wheat flour products. The domestic wheat flour products had lower SRC and WSI characteristics than the imported wheat flour products. The values of lactic acid SRC (LASRC) in the imported wheat flour products showed an increasing trend as the protein content increased. The differences in viscosity were observed in the domestic wheat flour products. However, no major significant differences of viscosity were found among the imported wheat flour products. The result of PCA showed a consistent trend in the imported wheat flour (strong, medium, and weak), while a consistent trend was not shown in the domestic wheat flour products. Therefore, further research is needed to standardize the different types of domestic wheat flour products.

Understanding on Regional Characteristics of Particular Matter in Seoul - Distribution of Concentration in Borough Spatial Area and Relation with the Number of Registered Vehicles - (서울시 미세먼지 농도의 지역적 특성파악을 위한 연구 - 구별 분포 특성 및 차량등록대수와의 관계 -)

  • Park, Jong-Kil;Choi, Yun-Jeong;Jung, Woo-Sik
    • Journal of Environmental Science International
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    • v.26 no.1
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    • pp.55-65
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    • 2017
  • Average concentration of PM in Seoul metropolitan area satisfied the Korean air quality standard in 2010. Furthermore, concentration of PM in all boroughs across Seoul met the air environment standard in 2012. $PM_{10}$ concentration was relatively higher in center of Seoul in comparison to the rest, while $PM_{2.5}$ concentration showed exactly the contrary result. We analyzed the effect that PM emissions from vehicles would have on PM concentrations across Seoul. The results showed that average annual PM concentration recently decreased in Seoul although the number of vehicles registered annually continued its upward trend. By contrast, average fine dust concentrations in Seoul showed a decline which suggested that correlation between annual average PM concentrations and number of registered vehicles remained low. However, year-on-year vehicle registration rate recently showed a declining tendency in the same way as the trend of changes in average PM concentrations. Particularly, the upward trend in annual average PM concentrations in 2002 and 2007 was consistent with the increase in vehicle registration rate, suggesting that vehicle registration rate was closely associated with changes in PM concentrations.

Changes of Housing Conditions in Later Life -Regional Comparison of Urban vs Rural Elderly- (老後 住居狀況 差異에 關한 硏究 -도시와 농촌의 비교를 중심으로-)

  • 이인수
    • Journal of the Korean housing association
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    • v.9 no.2
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    • pp.1-11
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    • 1998
  • This study has been performed to analyze housing status in later life. In this study, 234 Koreans aged 60 or more were interviewed for their current housing status. The results are drawn as follows: 1. The household size does not highly fluctuate in later life; it ranges from three to five overall. But there is a trend difference over region; The household size continuously increases until 70's in urban area, but it shows increase & decrease changes over five-year intervals. 2. The number of bedrooms slightly ranges from 3- to 3.8 over urban and rural areas without noticeable trend for age intervals. 3. Use of indoor area has regional difference; It ranges from 28 to 40 pyoung in urban area, but it does more widely form 27.7 to 50 in rural area. 4. There is a most significant region effect on structure type for the elderly; For the urban elderly, proportion of those living in single detached dwelling consistently decreases as age increases. For the rural elderly on the other hand, the rate of those living in single detached dwelling sharply increases in their 70's and the rate reaches 85.7%. 5. For the ownership trend, more than 70% of the elderly are home owners at the age 60-64, but the rate continuously decreases in later life stage while the rate of those living in their children-owned home increases.

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The Trend and International Comparison of Overseas School Health Indicators (학교보건지표의 해외 동향과 국제 비교)

  • Shin, Sun-Mi
    • Journal of the Korean Society of School Health
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    • v.24 no.2
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    • pp.181-189
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    • 2011
  • Purpose: The purpose of this study was to identify the trend of overseas school health indicators and to investigate indicators comparable internationally. Methods: Using the key words, school, health, indicators and policy through formal literature and web sites, the resources were used after the completeness of resources such as the presence of author, year published and place, and reproducibility was evaluated. Results: In overseas, the interest of school health indicators has increased gradually since 1960. Quality indicators as well as quantitative indicators are important as the good school health indicators. The overseas school health indicators have been very comprehensive, not only including students, but also including the expanded population such as school personnel, parents, family and community, process and outcomes, policies, social and cultural environment. The trend of school health research is from traditional issue-based to indicatorbased which makes comprehensive interpretation including development of school health service and life satisfaction. Among internationally comparable indicators, Health Behaviour in School-aged Children (HBSC) and Global School-based Student Health Survey (GSHS) were chiefly for students' health and behavior level, and the School Health Service Survey (SHS) was for school health service personnel and policy. Conclusion: Characteristics of overseas school health indicators were expanded population, and comprehensive and internationally comparable indicators. Therefore, Korea school health indicators need to be comprehensive using expanded population and qualitative indicators, and consider standardized indicators comparable internationally.

The current trend in the studies of the Role of the Father - Analysis on America and Japan - (아버지역할과 자녀양육에 관한 연구동향(I) -미국.일본을 중심으로-)

  • 강란혜
    • Journal of the Korean Home Economics Association
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    • v.38 no.7
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    • pp.153-165
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    • 2000
  • The purpose of this article is to document the trend in studies on the role of the father. A large number of studies on parent-child relationships have been focused on the nature of mother-child relationships. Since the 1970s, the role of the father has become an increasingly popular topic in the U.S and Japan. Why has the father's role been forgotten for such a long time\ulcorner Why is the father's role being rediscovered in recent years\ulcorner Does the father have significant impact on child's development\ulcorner This proper reviews these issues in terms of sociocultural background, trends, and future implications of the studies. A comparison and determinants analysis regarding the extent of father-child interaction, of the lather's behavior, and its effects on the child in the U.S and Japan is provided.

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An Analysis of the Research Trend in Fisheries and Marine Science Education (수해양교육 연구 동향 분석)

  • KANG, Beodeul;PARK, Jong-Un
    • Journal of Fisheries and Marine Sciences Education
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    • v.27 no.4
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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.

Comparison of the fine particle concentrations in Seoul and other foreign mega-cities (서울과 외국 대도시의 미세입자 조성 비교)

  • Hong, Seon Yeh;Lee, Jung Jin;Lee, Ji Yeon;Kim, Yong Pyo
    • Particle and aerosol research
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    • v.4 no.1
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    • pp.1-7
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    • 2008
  • Temporal trends of the PM10 and PM2.5 mass concentrations, and the concentrations of chemical species (sulfate, nitrate, ammonium, OC, and EC) in PM2.5 at Seoul are compared with the reported results from other mega cities in the world. The mass concentrations of PM10 and PM2.5 at Seoul show decreasing trend. However, the concentration levels are still higher than other cities except Beijing. The sulfate concentration at Seoul has decreased while those of nitrate and ammonium have increased. The concentrations of OC and EC show no apparent trend.

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Analysis of Previous Make-up Study (화장에 관한 기존연구 유형의 분석)

  • 백경진;김미영
    • The Research Journal of the Costume Culture
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    • v.12 no.1
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    • pp.182-198
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    • 2004
  • The purpose of this study was to analyze the previous make-up studies. A number of publications and journals were reviewed and analyzed carefully. The results of review and analysis were as follows: There were many different subjects in make-up studies and They can be divided into ten types : cosmetics purchase behavior, change of make-up culture and comparison, make-up trend by era, cosmetics industry's standing of today and strategy, art trend in make-up, brand preference of cosmetics, make up attitude, recognition about imported cosmetics and purchase behavior, color preference of cosmetics, the relationship between self-concept and make-up. In general, the cosmetic purchase behavior studies are conducted most actively. According to result that analyze existent study, special duality of cosmetics purchase action appears very variously according to standard of classification of study target and study target. But, study target and method of study are not various, and purchase behavior study collected with make-un and clothes is yew lacking. Therefore, in this study, wished to discover problem of virtue study because analyzes studies about previous make-up and present forward study direction.

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Analysis of trend in construction using textmining method (텍스트마이닝을 활용한 건설분야 트랜드 분석)

  • Jeong, Cheol-Woo;Kim, Jae-Jun
    • Journal of The Korean Digital Architecture Interior Association
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    • v.12 no.2
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    • pp.53-60
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    • 2012
  • In this paper, we present new methods for identifying keywords for foresight topics that utilize the internet and textmining techniques to draw objective and quantified information that support experts' qualitative opinions and evaluations in foresight. Furthermore, by applying this fabricated procedure, we have derived keywords to analyze priorities in architectural engineering. Not much difference between qualitative methods of experts and quantitative methods such as text mining has been observed from comparison between technologies derived via qualitative method from "The Science Technology Vision" (control group). Therefore, as a quantitative tool useful for drawing keywords for foresight, textmining can supplement quantitative analysis by experts. In addition, depending on the level and type of raw data, text mining can bring better results in deriving foresight keywords. For this reason, research activities accommodating Internet search results and the development of textmining methods for analyzing current trends are in demand.

Comparison and Selection of Standing / Sedentary Work Posture for A Light Assembly Work (경조립작업을 위한 입/좌식 작업자세의 비교 및 선정)

  • 김해진;임현교
    • Journal of the Korean Society of Safety
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    • v.15 no.3
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    • pp.108-114
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    • 2000
  • The work posture impose additional stress upon human workers so that it should be carefully considered in designing works. However, we have a lot of manufacturing plants which convert their standing workplace to sedentary one. To confirm the validity of that trend, the authors conducted an experimental study, and compared the results. The results of the EMG and the self-cognitive symptoms, in general, showed a correspondent trend that the sedentary work posture was rated more comfortable. At the beginning of the work, complaint of the lowerback was higher whereas that of the lower leg and the feet went higher as the time elapsed. If the weight of workpiece were heavier than 500g, increasing rate of bodily discomfort in the sedentary posture were greater than that of the standing posture. In the meanwhile, the standing posture was consistently superior to the sedentary posture in its performance. Thus, in conclusion, for a light assembly work, sedentary work posture would be recommendable because bodily discomfort would be larger irrespective of the small increase of performance increase.

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