• Title/Summary/Keyword: environmental effect factor

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Effect of Genetic and Environmental Factors on Growth (성장에 대한 유전적.환경적 요인의 영향)

  • Choi, Min-Hyung;Kim, Deog-Gon;Lee, Jin-Yong
    • The Journal of Pediatrics of Korean Medicine
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    • v.24 no.3
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    • pp.138-149
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    • 2010
  • Objectives: The purpose of this study is to estimate genetic and environmental factors which can effect growth, and predict final height using this factors. Methods: Correlation analysis and regression analysis were conducted between measurements of height and Genetic & environmental factors through survey from 1352 child & adolescent patients. Results: Factors which have correlation with height percentile are MPH(Mid-Parental Height), NBW(Neonatal body weight), anorexia, dyspepsia, atopic dermatitis, frequency of breakfast and quality of sleeping time. MPH has moderate relation, NBW and anorexia have fair relation, and other factors have linear but poor relation. Regression equation from factors which have correlation and height percentile has 26.9% of predictive power. Regression equation considering only genetic factor has 20.4%. MPH has the most effect on height percentile. Anorexia has more effect than NBW. Other factors also have small and similar effect. Conclusions: Height of parents has the most effect on growth, anorexia, dyspepsia, atopic dermatitis, frequency of breakfast and quality of sleeping time also has effect.

The Structural Relationship among Perceived Environmental Factor, Self-Rated Health and Active Aging for Active Senior Golf Participants (액티브 시니어 골프참여자의 지각된 환경적요인과 주관적 건강 및 활동적 노화의 관계)

  • Kim, Hyung-Jin
    • Journal of the Korean Applied Science and Technology
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    • v.38 no.6
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    • pp.1616-1626
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    • 2021
  • The purpose of this study was to investigate the relationship among perceived environmental factor, active aging and self-rated health for active senior golf participants. The collected data were analyzed using the SPSS 18.0 and AMOS 18.0 programs for Windows. Frequency analysis, confirmatory factor analysis, reliability analysis. After correlation analysis and structural equation model analysis were used. As a results derived through the research are as follows. First perceived environmental factor had a positive effect on active aging. Second, active aging had a positive effect on self-rated health. Third, perceived environmental factor had a positive effect on self-rated health. Fourth, active aging mediated the relationship between perceived environmental factor and self-rated health.

Effect of fiber geometry on the electromagnetic shielding performance of mortar

  • Kim, Young Jun;Yemam, Dinberu M.;Kim, Baek-Joong;Yi, Chongku
    • Computers and Concrete
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    • v.17 no.2
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    • pp.281-294
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    • 2016
  • The increased awareness of electromagnetic wave hazards has prompted studies on electromagnetic shielding using conductive materials in the construction industry. Previous studies have explored the effects of the types of conductive materials and their mix proportions on the electromagnetic shielding performance; however, there has been insufficient research on the effect of the geometry of the conductive materials on the electromagnetic shielding performance. Therefore, in this study, the dependence of the electromagnetic shielding performance on the cross-sectional geometry, diameter and length of fibers was investigated. The results showed that the electromagnetic shielding performance improved when the fiber length increased or the diameter decreased, but the effect of the cross-sectional geometry of the fibers was smaller than the effect of the fiber spacing factor.

An E-score Development Methodology for Life Cycle Impact Assessment

  • Young-Min Park;Jai-Rip Cho
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.24 no.68
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    • pp.51-65
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    • 2001
  • This study is to make LCIA(Life Cycle Impact Assessment) easier as a methodology of environmental scores(called E-score) that integrated environmental load of each emission substance based on environmental damage such as in human health, ecosystem and resources category. The concept is to analyzes the LCI(Life Cycle Inventory) and defines the level of environment damages for human health, ecosystem and resources to objective impact assessment standard, and makes the base of marginal damage to calculate the damage factor, which can present the indication that can establish the standard value of environmental impact. First, damages to human health are calculated by fate analysis, effect analysis and damage analysis to get the damage factor of health effect as a DALY(Disability Adjusted Life Years) unit. Second, damages to ecosystem are calculated by fate analysis, effect analysis and damage analysis to get the damage factor of the effect as a PDF(Potentially Disappeared Fraction) unit through linking potentially increased disappeared fraction. Third, damages to resources are carried out by resource analysis and damage analysis for linking the lower fate to surplus energy conception to get damage factor as a MJ(Mega Joule) unit. For the ranking of relative environment load level each other, LCIA can be carried out effectively by applying this E-score methodology to the particular emission substances. A case study has been introduced for the emission substances coming out of a tire manufacturer in Korea. It is to show how to work the methodology. Based on such study result, product-designers or producers now can apply the E-scores presented in this study to the substances of emission list, and then calculate the environment load of the product or process in advance at any time and can see the environment performance comparatively and expected to contribute to the environmental improvement in view of environmental pollution prevention.

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An Analysis of Effect of a Fit Between Success Factors of ERP Implementation and Information Characteristics of ERP System on System Performance (ERP도입의 성공요인과 시스템 정보특성간의 적합성이 시스템 성과에 미치는 영향분석)

  • Lim, Kyu-Chan
    • The Journal of the Korea Contents Association
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    • v.6 no.2
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    • pp.136-145
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    • 2006
  • To achieve this study, this study divide success factors of ERP implementation into organizational, environmental and information and group system information characteristics into form, content, source and supply frequency of information and is to verify an effect of two factors on system performance(user satisfaction). After selecting 250 SMBs in sample, this study use 79 questionaires for analysis. And all SMBs which was sampled in this study are manufacturing companies and don't consider respondent's position. The results of this study are as follows. First, there is a positive effect of a fit between organizational factors and system information characteristics on system performance. Second, there is a positive effect of a fit between environmental factors and system information characteristics on system performance. and third, there is positive effect of a fit between information factors and system information characteristics on system performance.

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The Effect of the Environmental Factor on the Emotion and Satisfaction at the Waiting Lounge of the International Cruise Terminal (국제여객터미널 대합실의 환경요소와 감정, 만족도 간의 영향 관계)

  • Kim, Gha-Ryong;Yhang, Wii-Joo
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2014.06a
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    • pp.210-211
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    • 2014
  • The study was to investigate the effect of the environmental factor on the emotion and satisfaction at the waiting lounge of the international cruise terminal. The results of the study were found as follows: first, the physical environmental factor of the lounge influenced on the positive emotion. Second, the social factor affected the positive emotion. Finally, emotion affected the positive satisfaction. This study suggested that environmental factor was totally affected by emotion and thus environmental management depended on an individual characteristics of the individual place. The port authority will need more efforts to make a better waiting lounge setting for higher tourist satisfaction.

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The Effect of the Environmental Factor on the Emotion and Satisfaction at the Waiting Lounge of the International Cruise Terminal (국제여객터미널 대합실의 환경요소와 감정, 만족도 간의 영향 관계)

  • Kim, Gha-Ryong;Yhang, Wii-Joo
    • Journal of Navigation and Port Research
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    • v.38 no.5
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    • pp.519-525
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    • 2014
  • The study was to investigate the effect of the environmental factor on the emotion and satisfaction at the waiting lounge of the Busan International Cruise Terminal. This study focus on tourist at the waiting area in the Busan International Cruise Terminal. The data was collected through self-administered questionnaires and the research performed to face-to-face interview. For data analysis, used SPSS 18.0 and AMOS 18.0 of a structural equation model. The results of the study were found as follows: first, the physical environmental factor of the lounge influenced on the positive emotion. Second, the social factor affected the positive emotion. Finally, emotion affected the positive satisfaction. This study suggested that environmental factor was totally affected by emotion and thus environmental management depended on an individual characteristics of the individual place. The port authority will need more efforts to make a better waiting lounge setting for higher tourist satisfaction.

The Effect of Individual Factors, Emotion Factors, Parents' Factors, and Social Environmental Factors on Career Decision Making of Adolescents with Multicultural (다문화청소년의 개인요인, 정서요인, 부모요인, 사회·환경 요인이 진로미결정에 미치는 영향)

  • Cho, Ouk-Sun;SuK, Mal-Sook
    • Journal of Industrial Convergence
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    • v.19 no.6
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    • pp.155-164
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    • 2021
  • The purpose of this study was to identify the individual, emotional, parent, and social environmental factors on career decision-making in multicultural youth. To this end, 1,146 multicultural adolescents who were enrolled in high school and whose fathers were Korean were selected as subjects of analysis as data for the 7th year of the Multicultural Youth Panel (MCAPS). As a result, first, it was found that self-esteem, which was an individual factor, and adaptation to school life and multicultural acceptance, which are social and environmental factors, positive effect career decision-making. Second, it was found that depression as an emotional factor and neglect as a parent factor had a negative effect on career decision-making. However, it was confirmed that stress as an individual factor, and parent-child communication as a parent factor did not affect career decision-making. These results are meaningful in that they provided basic data on how to deal with each factor and prevent multicultural youths from wandering in advance without deciding their career paths.

Analysis on Thermal Environment of Marathon Course in 2011 Daegu World Championship in Athletics (대구 세계육상선수권대회 마라톤 구간의 열환경변화분석)

  • Baek, Sang-Hun;Oh, Sang-Hak;Jung, Yong-Hun;Jung, Eung-Ho
    • Journal of Environmental Science International
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    • v.20 no.7
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    • pp.881-890
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    • 2011
  • In this study, thermal environment changes for a marathon course of IAAF World Championship, Daegu 2011 were modeled to provide improvements of thermal environment, so that runners could have the maximum condition and citizens pleasant streets. The three biggest size of intersections were selected for the study. Envi-met, 3G microclimate model, were used for a thermal environment analysis and three different cases - present status, planting roadside tree scenario, and roof-garden scenario - were compared. The followings are the results of the study. 1. The highest thermal distribution were shown at 1 p.m., but there was no significant difference between a thermal distribution at 1 p.m. and that at 5 p.m. since a heat flux from buildings affects thermal distributions rather than insolation does. 2. Tree planting or adding environmental friendly factors might lead a temperature drop effect, but the effect was not significant for areas covered with impermeability packing materials such as concrete or asphalt (especally, for Site case 2) 3. The combination of tree planting and adding environmental friendly factors also brought a temperature drop effect (Site 1 and 2) and this case showed even better result if green spaces (especially, parks) were closed.