• 제목/요약/키워드: Moment coefficient

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Structural relations of late night snacking choice attributes and health promotion behaviors according to dietary style of industrial workers

  • Park, Young Il;Joo, Nami
    • Nutrition Research and Practice
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    • 제8권4호
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    • pp.432-438
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    • 2014
  • BACKGROUND/OBJECTIVES: This research was conducted to develop a construct model regarding the dietary style, late night snacking choice attributes and health promotion behaviors of industrial workers. SUBJECTS/METHODS: The surveys were collected during the period between January and February 2013. A statistical analysis of 888 industrial workers was conducted using SPSS 12.0 for Windows and SEM (Structural Equation Model) using AMOS (Analysis of Moment Structure) 5.0 statistics package. RESULTS: The results of the correlations between all variables showed significant positive correlations (P < 0.05). Results of factors analysis on dietary styles were categorized into five factors and health promotion behaviors were categorized into four. The reliability of these findings was supported by a Cronbach's alpha coefficient of 0.6 and higher for all other factors. After obtaining the factors from processing an exploratory factor analysis and the end results supported the validity. In an attempt to study the late night snacking choice attributes in accordance to dietary styles and the health promotion behaviors of industrial workers, a structural equation model was constructed and analyzed. CONCLUSIONS: All tests proved the model satisfied the recommended levels of the goodness on fit index, and thus, the overall research model was proved to be appropriate.

중년여성의 자아실현과 영향요인 (The Influencing Factors on Self-actualization in Middle-aged Women)

  • 김숙영;전은영;김귀분;서연옥
    • 성인간호학회지
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    • 제14권4호
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    • pp.602-611
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    • 2002
  • Purpose: The purpose of this study was to identify the influencing factor to self actualization in middle-aged women. Method: The subjects for this study were 191 middle-aged women selected by convenience sampling in three cities. Data collection was done using a questionnaire. The data were analyzed by using descriptive statistics, Pearson Product Moment Correlation coefficient and Stepwise Multiple Regression. Result: The results of this study were as follows: 1. The relationship between self-efficacy, social support, self esteem, motivation for achievement, parental satisfaction with children and self-actualization were found to have statistically significant positive correlations. But the relationship between depression and self-actualization were found to have statistically significant negative correlation. 2. Stepwise multiple regression analysis revealed that the most powerful predictor was social support. Social support, motivation for achievement and self esteem accounted for 38.1% of the variance in self-actualization in middle aged women. Conclusion: According to these results, it is recommended that in order to enhance self-actualization in middle-aged women, empowerment of social support, motivation for achievement and self esteem should be pursued.

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A study on the model of homebound senior's meal satisfaction related to the quality of life

  • Lee, Sun-Mee;Joo, Na-Mi
    • Nutrition Research and Practice
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    • 제6권4호
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    • pp.357-365
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    • 2012
  • This study was conducted to develop a construct model regarding the daily activities, emotional security provided by food, enjoyment of food, level of satisfaction with delivered food, and the quality of life of homebound seniors who benefitted from meal delivery programs. The data were analyzed by SAS 9.2 and the Structural Equation Model (SEM), which was created by Analysis of Moment Structure (AMOS) 5.0 packages. The reliability of the data was confirmed by an exploratory factor analysis and through a Cronbach's alpha coefficient, and the measurement model proved to be appropriate by a confirmatory factor analysis of the measurement model in conjunction with AMOS. The results of the correlations between all the variables showed significant positive correlations (P < 0.05). The path analysis demonstrated that the daily activities (P < 0.01) and the emotional security created by food (P < 0.05) had positive correlations with the foodservice satisfaction (P < 0.05), while the daily activities (P < 0.05), the sense of emotional security made by food (P < 0.05), and food enjoyment (P < 0.05) also presented significant positive correlations with the quality of life. However, the food service satisfaction was shown to directly, but not significantly, affect the quality of life. This revealed that the current meal delivery programs needed to be improved in several directions.

A Clinical Study About Difference Between Recognition of One's Own Body Figure and the Real Body Shape

  • Lee, Hee-Seung;Park, Sung-Sik
    • 대한한의학회지
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    • 제28권4호
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    • pp.52-60
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    • 2007
  • Objectives : The purpose of this study is to evaluate if the answers of questionnaires correlate with real body shapes and to evaluate if there are any differences between different types of questionnaires. Methods : We hand-measured body circumferences and body widths to analyze statistically answers of 9 questions from 2 different questionnaires. Also we compared two different types of questionnaires with Pearson product-moment correlation coefficient and two way ANOVA test. Results : There are significant correlations between answers of questions and all measured body circumferences and most body circumferences except for iliac width. Also answers of questionnaires even about the same chest part are not quite the same according to the opposite type of questionnaire after we compared grouping two of eight questions. Patients seem to have difficulty to recognizing if their necks are well-developed or not especially when the question asks about body shape when comparing two parts such as neck vs waist or chest vs buttock. Conclusions : There is general tendency of recognizing one's body shape properly. But also there are differences of recognition according to the type of questionnaire about the same body. So it is recommended to study more about the questionnaires.

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The Impact of Credit on Income Inequality in Vietnam

  • LE, Quoc Hoi;NGUYEN, Bich Ngoc
    • The Journal of Asian Finance, Economics and Business
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    • 제7권5호
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    • pp.111-118
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    • 2020
  • This paper examines the impacts of credit on income inequality in Vietnam. Though it is one of the most common measures of financial development, there is a dearth of research in this area. Unlike previous studies, the paper disaggregates the impact of each type of credit on income inequality, looking at the Gini coefficient. We employ the Generalized Method of Moment (GMM) to solve the endogenous problem. The primary data set contains a panel of 60 Provincial observations, from data collected from the General Statistics Office of Vietnam from 2002 to 2016. The empirical findings show that, while commercial credit increases income inequality, policy credit contributes to reducing income inequality in Vietnam. The results also confirm the important roles of education, institutional quality and foreign direct investment in fighting against income inequality in Vietnam. However, the paper does not provide adequate evidence to support the inverted U-shaped relationship between credit and income inequality. Based on the findings, we argue that the government should direct flows of credit to real economic activities rather than speculative investment; more bank credit should be allocated to rural areas and agriculture; and favorable credit programs should be designed to promote education, especially of those living in rural areas.

A Study on Influence of Economic Preparation for Later Life after Retirement

  • KIM, Jong-Jin
    • The Journal of Asian Finance, Economics and Business
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    • 제7권5호
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    • pp.279-290
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    • 2020
  • This study examines how economic preparation for later life directly influences life after retirement. As people's life cycle is gradually getting longer, preparation for the later time with less economic activity after retirement is becoming more important. Thus, this study analyzes the factors influencing life after retirement. Data comes from the Korean Retirement and Income Study (KReIS) surveyed carried out by the National Pension Research Institute in 2015. The analysis includes Cronbach's alpha, Pearson Product Moment Correlation Coefficient and Sobel Test. This study confirms that voluntary retirement has a positive influence on life satisfaction. Results are in line with previous research about the relationship between voluntary retirement and retired life. When a person retires voluntarily, financial preparation can be made in advance for retirement. In case of involuntary retirement, people may experience a sense of loss in personal standing and financial difficulties due to the unexpected situation. Especially, early retirement from the main workplace leads to unstable later life. The study's policy recommendation, in particular, calls on government and businesses to agree on social responsibility for helping employees to retire in the predictable retirement time and, thus, enabling the retiree to decide all aspects of the path after retirement.

TIRE MESH 모델을 활용한 랙추력 추정법 개발 (Rack Force Estimation Method using a Tire Mesh Model)

  • 김민준;장세현;이병림;박영대;조현석
    • 한국자동차공학회논문집
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    • 제22권3호
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    • pp.130-135
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    • 2014
  • In this paper, a new estimation method is proposed to calculate steering rack axial force using a 3 dimensional tire mesh model when a car is standing on the road. This model is established by considering changes of camber angle and contact patch between the tires and the ground according to steering angle. The steering rack bar axial force is estimated based on the static equilibrium equations of forces and moments. A tire friction force is supposed to act on the center point of the contact patch, and the proportional coefficient of friction depending on contact patch is suggested. Using the proposed estimation method, rack axial force sensitivity analysis is evaluated according to changes of suspension geometry. Then optimal motor power of Motor Driven Power Steering(MDPS) is evaluated using suggested rack forces.

수정 Sonic Arc 익형의 저속 공력특성 (Low Speed Aerodynamic Characteristic of Modified Sonic Arc Airfoil)

  • 이장창
    • 한국항공우주학회지
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    • 제40권2호
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    • pp.139-145
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    • 2012
  • 천음속 영역에 적합하도록 개발된 수정 Sonic Arc 익형의 저속 공력특성에 대해 조사하였다. 이 익형은 Schwendenman이 제안한 sonic arc 형상 함수와 NACA0012 형상 data 그리고 상용 프로그램 Maple을 이용하여 설계하였다. 수정 Sonic Arc 익형의 저속공력 특성을 조사하기 위해 마하수 0.3 이하에서 수치해석을 수행하고 그 결과를 NACA0012 익형의 저속 공력성능과 비교분석하였다. 각 마하수에서 수정 sonic arc 익형의 항력은 NACA0012의 항력보다 약 1.5% 정도 작게 나타났으며, 양력 비교에서도 수정 Sonic Arc 익형의 양력은 NACA0012의 양력보다 약 2% 정도 일정하게 작게 나타났다. 또한 각 마하수에서 수정 Sonic Arc 익형의 모멘트 계수는 NACA0012의 값보다 약 1.4% 정도 작게 나타났다.

Analysis of Lodging-Related Traits of Direct Seeded Rice

  • Kim, Hyun-Ho
    • 한국작물학회지
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    • 제43권1호
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    • pp.32-37
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    • 1998
  • The objective of this study was to analyze lodging-related traits using different cultivars from Korea, Japan, and the U.S. in direct seeded rice on dry paddy field. Stem diameter and culm wall thickness were highest in 'Caloro' followed by 'Nongan', 'M202', and 'Calrose'. All the U.S. cultivars were higher than the others in stem diameter and culm wall thickness. These two traits were important with regard to lodging. The highest breaking strength (1442g) was observed in Caloro. 'Gancheoek', 'Dongjin', and transplanted 'Hatsuboshi' showed more than 1000g in breaking strength. Lodging index was lowest in Hatsuboshi followed by Nongan and Gancheok. Even though breaking strength of the U.S. cultivars was higher than others, their lodging index values were high. There were no statistically significant differences in starch content. However, Calrose, Caloro, Dongjin, and Koshihikari were relatively higher than others in starch content. Positive correlations were found between culm base weight, lignin and breaking strength. High contents of lignin and cellulose were observed in Nongan, transplanted Hatsuboshi, Calrose, and Caloro. Traits such as stem diameter, culm wall thickness, bending moment, culm length, breaking strength, cellulose, lignin, and culm base weight were closely related to a lodging index. According to path coefficient analysis, most important traits were culm length, stem diameter, thickness of clum wall, and top plant weight.

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어머니의 성 역할 태도와 자녀 양육 가치관 (Mother's Sex-Role Attitudes and Child Rearing)

  • 하승민
    • 아동학회지
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    • 제6권2호
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    • pp.73-84
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    • 1985
  • The purpose of this research was to investigate the relationship between mothers' bsex-role attitudes and child-rearing values of independence granting and pressure for achievement, and also to examine variations in mothers' attitudes by sex of child. The subjects of this study were 260 mothers of preschool girls and boys. They were middle and high SES class and highly educated. The 20 item version of the Feminism Scale (FEM Scale) was used to measure mothers 'attitudes toward women's sex-role ideology. The Korean Sex-Trait Stereotype Measure was used to measure the mothers' sex-perception of masculinity and feminity. The 5-item translated Barnett Independence Granting Scale was used to measure independence granting. The 7-item version of the Barnett Pressure for Achievement Scale was used to measure mothers' pressure on their children for achievement. Data analysis consisted of Pearson's Product-Moment Correlation Coefficient and t-test. The results were: 1. Mothers' nontraditional sex-role ideology was significantly related to lower mean age of independence granting and to pressure for achievement. 2. Two self-perception scores (self-masculine and self-feminine) were not related to mean age of independence granting but were significant1y related to pressure for achievement. 3. The mean age of independence granting was lower for sons than for daughters. 4. Mothers put more pressure for achievement on sons than on daughters.

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