• Title/Summary/Keyword: regression analysis through the origin

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The Influence of Family-of-Origin Functioning on Fear-of-Intimacy: The Mediating Effect of Adult Attachment (대학생의 원가족 건강성이 친밀한 관계의 두려움에 미치는 영향: 성인애착의 매개효과)

  • Kim, Byung Su
    • Human Ecology Research
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    • v.52 no.4
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    • pp.337-345
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    • 2014
  • The purpose of this study was to examine the mediating effect of the adult attachment in the relationship between the family of origin functioning and fear of intimacy. Data were collected through a questionnaire from 557 university students in the Jeollabuk-do of South Korea. The collected data were analyzed by basic descriptive statistics, Pearson's correlations and multiple regression analysis. Baron and Kenny's method was used and examined, and the Sobel test was performed to determine the mediating model's significance. It was adapted to SPSS ver. 18.0 for Windows. The major findings were as follows: first, the functioning of family-of-origin was negatively related to the fear of intimacy. In addition, younger students and students with less past dating experience were more likely to fear of intimacy. Second, fear of intimacy was influenced by the family-of-origin through the intermediate effect of attachment avoidance and attachment anxiety. Attachment avoidance and attachment anxiety had partial mediating effects on the relationship between family-of-origin functioning and the fear of intimacy. That is, family-of-origin functioning was shown to have not only a direct effect, but also an indirect effect through attachment avoidance and attachment anxiety, on the fear of intimacy. The results of this study suggest that the importance of family-of-origin functioning in order to improve Korean college students' intimacy abilities.

A Study of Middleman's Functions in Fisheries Port Market (수산물 산지 중도매인 기능 변화에 관한 연구)

  • Jang, Young-Soo
    • The Journal of Fisheries Business Administration
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    • v.38 no.3
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    • pp.89-108
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    • 2007
  • The purpose of the study are summarized as follows: First, it has researched the new functions of middleman in Fisheries Port Market. Second, the new functions which middleman have to perform in Fisheries Port Market consist of the origin function, marketing function, logistics function. The origin function consists of the discrimination of fish species and freshness, making the price by auction, financing, etc. Marketing function consists of various species assortment from not only fisheries port market but also non fisheries port market as frozen and import fish markets, finding the new selling markets as not broker but wholesaler, making the price and margin non through the action, processing, etc. Logistics function consist of fish stock, delivery Third, it has recognized the upcoming important problems by building up the new functions as middleman in Fisheries port Market. This study has used a questionnaire to verify 3 hypotheses. Research model, factor analysis, regression analysis. The result of this study are summarized as follows: The origin function influences positively on the effectiveness of middleman's performance in Fisheries port Market. Marketing function influences positively on the effectiveness of middleman's performance. However, logistics function did not directly influences on the effectiveness of middleman's performance.

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The Influences of Satisfaction of Product and Shopping Mall Properties on Clothing Purchasing Behavior in Internet Open Market -Focusing on Mall Reliability, Repurchase Intention, and Recommendation Intention- (오픈마켓 의류구매에서의 재품 및 쇼핑몰 속성 만족이 구매행동에 미치는 영향 -쇼핑몰 신뢰, 재구매 의도, 추천 의도를 중심으로-)

  • Ji, Hye-Kyung
    • Journal of the Korea Fashion and Costume Design Association
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    • v.14 no.3
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    • pp.161-176
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    • 2012
  • This study aims to find out the influence of satisfaction of the product and shopping mall attributes on mall reliability, repurchase intention, and recommendation intention in internet open market. For this purpose, this study surveyed 266 male and female consumers in their 20's~40's for empirical analysis who have ever purchased clothing through internet open markets. Respondents are selected using the convenience sampling through online survey in August 2011. For statistical analysis, descriptive statistics, reliability analysis, factor analysis, t-test, ANOVA, and regression analysis are carried out using SPSS for Windows 12.0. The results are as follows; First, it was identified that there were Significant differences in consumers' satisfaction on product and shopping mall attributes according to purchase price, degree of purchase, and the demographics. Second, it was identified that performance, sewing condition, the stability of the form, texture, harmony with other clothes, the response of people, fashionability, seller, origin, detailed explanation on products, interaction with shopping malls, and ease-of-use have significant influence on the reliability of open market. Third, it was identified that easiness to be active in, the stability of the food, design, suitability to T.P.O, price, origin, detailed explanation on products, product assortment, reputation of shopping malls, ease-of-use, and delivery charge policy have significant influence on the repurchase intention. Fourth, it was identified that easiness to be active in, the stability of the form, design, suitability to T.P.O, price, origin, detailed explanation on products, product assortment, reputation of shopping malls, ease-of-use, and delivery charge policy have significant influence on the intention to recommend.

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Factors Affecting Family Strength of Married Adults : Focused on the Family-of-Origin Experiences (기혼 성인의 가족건강성에 대한 영향요인 : 원가족경험요인을 중심으로)

  • Park, Hyungwon
    • The Journal of the Korea Contents Association
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    • v.15 no.9
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    • pp.184-194
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    • 2015
  • The present study set out to investigate influencing factors on family strength. The sample consisted of 249 male and female married adults who were in the class of social welfare in S cyber university. Analysis revealed that married adults' family strength level was 3.86(above the moderate). Among variables, marital status, religion, income, economic problems couple conflict, conflict with mother-in-law, children's problem, family of origin experiences were associated with family strength. Regression analysis revealed that family cooperation and harmony of family were associated with family strength among 8 sub-factors : overall emotional health of family, conflict resolution, acceptance of separation and loss, permission to others, harmony of family, family cooperation, independence in extended family, power balance in family. These findings highlight the collective characteristics of Korean family and traditional values emphasizing the harmony influences the family strength through the generation.

Correlation Between the Point-Load Strength and the Uniaxial Compressive Strength of Korean Granites (국내 화강암의 점하중강도와 일축압축강도간의 상관분석)

  • Woo, Ik
    • The Journal of Engineering Geology
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    • v.24 no.1
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    • pp.101-110
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    • 2014
  • This study presents the results of a regression analysis of the point-load strength ($I_{s(50)}$) and the uniaxial compressive strength (UCS) of granites in Korea. The regression was carried out for three cases using the least-squares method, reclassifying the granite samples based on their physical properties. The first regression analysis through the origin according to the weathering grade did not give a result with a sufficient degree of confidence, due to the small number of samples. However, the general trend of the correlation between UCS and $I_{s(50)}$according to weathering grade shows that the slope of the linear regression for weathered granite is steeper than that for fresh granite. The second analysis was a simple linear regression for all the granite samples using the least-squares method as well as a linear regression using the bootstrap resampling method in order to increase the confidence level and the accuracy of the regression results. The third regression considered the average strength of granite groups reclassified according to physical properties. These linear regression analyses yielded linear regression equations with slopes of 14 and small standard deviations being similar to values reported in previous studies on Korean granites, but whose intercept values range from 16 to 43 and have a larger standard deviation than those of the present study. In conclusion, it would be advisable to estimate UCS from $I_{s(50)}$, considering the error range derived from the deviation of the regression equations.

Comparison on Shopping Orientations and Purchase Criteria according to the Occupational Status among U. S. Female Consumers (성인여성의 취업유형에 따른 쇼핑성향 및 구매기준 비교연구)

  • 이진화;홍재원
    • Journal of the Korean Home Economics Association
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    • v.42 no.3
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    • pp.51-64
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    • 2004
  • The purpose of this study was to compare shopping orientations and purchase criteria according to the occupational status; professionals, non-professionals, and homemakers among female consumers. Subjects were selected from mailing lists through a random sampling technique in the United States. Collection of the research data was made using an adaptation of the Total Design Method for implementing mail surveys. ANOVA, Regression, and Duncan Test were used to conduct the data analysis on 254 out of 1000 questionnaires. The three job status showed significant differences in 5 shopping orientations(sex role oriented, fashion conscious, credit oriented, catalog oriented, and value oriented). Even after controlling the effect of income and education level, significant differences were noticed in 4 shopping orientations, the exception being value conscious. Brand, price, and country of origin among the job status groups also showed significant differences in results for purchase criteria.

Effect of Curvature on Deformation caused by Thermal Plate Forming (열간가공의 변형에 미치는 곡률의 영향에 관한 연구)

  • Lee, Joo-Sung
    • Journal of Ocean Engineering and Technology
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    • v.25 no.2
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    • pp.67-72
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    • 2011
  • This study had the goal of investigating the effect of the curvature along the heating line on the transverse angular distortion of plates having an initial curvature from line heating. A thermo-elasto-plastic analysis was carried out using 54 models with various radii of curvature, plate thicknesses, and heating speeds. The results show the effect of the curvature along the heating line on the angular distortion in relation to changes in the magnitudes of the curvature, heating speed, and plate thickness. The present numerical results show that the time history of the angular distortion after cooling and reaching the final deformed shape for a plate having an initial curvature is quite different from that of a flat plate. This emphasized the importance of considering the curvature effect on the transverse angular distortion. From the viewpoint of the curvature effect on the deformation, it has been seen that the curvature does not affect the transverse shrinkage. In this study the predicting formula for the transverse angular distortion was derived through a regression analysis. It showed that as the curvature increased, the angular distortion was reduced because of the higher bending rigidity at the same heat input parameter, and the peak points moved toward the origin as the curvature increased.

Correlation Analysis Between Lane Occupancy and Density in Expressways Connected with the Busan Port (부산항과 연계된 고속도로의 차로별 점유율과 밀도의 상관분석에 관한 연구)

  • Kim, Tae-Gon;Heo, In-Seok;Park, Bae-Seong
    • Journal of Navigation and Port Research
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    • v.37 no.5
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    • pp.535-541
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    • 2013
  • Expressways are built to provide for high levels of safety and efficiency in the movement of large traffic volumes at high speeds. However, Gyeongbu and Namhae expressways in the country which are often suffering from the transportation problems with increased import and exoprt cargo trucks including the container vehicles are the major expressways having the Busan Port as the origin and destination regions, and are required to study the expressway traffic characteristics for reducing the transportation problems. We therefore attempted to suggest the expressway density predictive model through the correlation analysis between lane occupancy and mean density at the 8-lane basic segments of the above major expressways in the country.

Mapping the Spatial Distribution of IRG Growth Based on UAV

  • Na, Sang-Il;Park, Chan-Won;Kim, Young-Jin;Lee, Kyung-Do
    • Korean Journal of Soil Science and Fertilizer
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    • v.49 no.5
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    • pp.495-502
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    • 2016
  • Italian Ryegrass (IRG), which is known as high yielding and the highest quality winter annual forage crop, is grown in mid-south area in Korea. The objective of this study was to evaluate the use of unmanned aerial vehicle (UAV) for the monitoring IRG growth. Unmanned aerial vehicle imagery obtained from middle March to late May in Nonsan, Chungcheongnam-do. Unmanned aerial vehicle imagery corrected geometrically and atmospherically to calculate normalized difference vegetation index (NDVI). We analyzed the relationships between $NDVI_{UAV}$ of IRG and biophysical measurements such as plant height, fresh weight, and dry weight over an entire IRG growth period. The similar trend between $NDVI_{UAV}$ and growth parameters was shown. Correlation analysis between $NDVI_{UAV}$ and IRG growth parameters revealed that $NDVI_{UAV}$ was highly correlated with fresh weight (r=0.988), plant height (r=0.925), and dry weight (r=0.853). According to the relationship among growth parameters and $NDVI_{UAV}$, the temporal variation of $NDVI_{UAV}$ was significant to interpret IRG growth. Four different regression models, such as (1) Linear regression function, (2) Linear regression through the origin, (3) Power function, and (4) Logistic function were developed to evaluate the relationship between temporal $NDVI_{UAV}$ and measured IRG growth parameters. The power function provided higher accurate results to predict growth parameters than linear or logistic functions using coefficient of determination. The spatial distribution map of IRG growth was in strong agreement with the field measurements in terms of geographical variation and relative numerical values when $NDVI_{UAV}$ was applied to power function. From these results, $NDVI_{UAV}$ can be used as a new tool for monitoring IRG growth.

3-Dimensional Performance Optimization Model of Snatch Weightlifting

  • Moon, Young-Jin;Darren, Stefanyshyn
    • Korean Journal of Applied Biomechanics
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    • v.25 no.2
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    • pp.157-165
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    • 2015
  • Object : The goals of this research were to make Performance Enhanced Model(PE) taken the largest performance index (PI) through artificial variation of principle components calculated by principle component analysis for trial data, and to verify the effect through comparing kinematic factors between trial data (Raw) and PE. Method : Ten subjects (5 men, 5 women) were recruited and 80% of their maximal record was considered. The PI is a regression equation. In order to develop PE, we extracted Principle components from trial position data (by Principle Components Analysis (PCA)). Before PCA, we made 17 position data to 3 row matrix according to components. We calculated 3 eigen value (principle components) through PCA. And except Y (medial-lateral direction) component (because motion of Y component is small), principle components of X (anterior-posterior direction) and Z (vertical direction) components were changed as following. Changed principle components = principle components + principle components ${\times}$ k. After changing the each principle component, we reconstructed position data using the changed principle components and calculated performance index (PI). A Paired t-test was used to compare Raw data and Performance Enhanced Model data. The level of statistical significance was set at $p{\leq}0.05$. Result : The PI was significantly increased about 12.9kg at PE ($101.92{\pm}6.25$) when compared to the Raw data ($91.29{\pm}7.10$). It means that performance can be increased by optimizing 3D positions. The difference of kinematic factors as follows : the movement distance of the bar from start to lock out was significantly larger (about 1cm) for PE, the width of anterior-posterior bar position in full phase was significantly wider (about 1.3cm) for PE and the horizontal displacement toward the weightlifter after beginning of descent from maximal height was significantly greater (about 0.4cm) for PE. Additionally, the minimum knee angle in the 2-pull phase was significantly smaller (approximately 2.7cm) for the PE compared to that of the Raw. PE was decided at proximal position from the Raw (origin point (0,0)) of PC variation). Conclusion : PI was decided at proximal position from the Raw (origin point (0,0)) of PC variation). This means that Performance Enhanced Model was decided by similar motion to the Raw without a great change. Therefore, weightlifters could be accept Performance Enhanced Model easily, comfortably and without large stress. The Performance Enhance Model can provide training direction for athletes to improve their weightlifting records.