Journal of the Korean Society of Clothing and Textiles
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v.30
no.11
s.158
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pp.1538-1549
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2006
The purpose of this study was 1) to identify gender differences in appearance management behavior and influencing variables(media involvement, body satisfaction and self-esteem), 2) the effects of influencing variables on appearance management behavior, and 3) to analyze the relationships among influencing variables. The data were collected ken 458 fifth and sixth grade girls and boys of five elementary schools ill Seoul, Korea via self-administered questionnaires, and were analyzed by factor analysis, t-test, and multiple regression analysis. The results of this study were as follows: Regarding the gender differences in research variables, preteen girls showed more interest in clothing/hair style management, weight management, TV involvement and celebrity imitation than preteen boys. Girls showed lower level of satisfaction than boys. Multiple regression analyses were conducted to identify the effects of media involvement, body satisfaction and self-esteem on appearance management behavior. For boy group, clothing/hair style interest was influenced by celebrity imitation, and weight management by TV involvement, body satisfaction and school self-esteem, and height management by celebrity management and school self-esteem. For girl group, clothing/hair style management was influenced by celebrity imitation and general self-esteem, and weight management by body satisfaction, general self-esteem, celebrity imitation and TV involvement, and height management by school self-esteem, TV involvement, time spent watching TV and general self-esteem. From the results of analyzing relationships among influencing variables, it was found that media involvement influenced self-esteem; TV involvement and celebrity imitation influenced school self-esteem; body satisfaction had the effect on all three sub dimensions of self-esteem in boy group. For female group, TV involvement had the effect on body satisfaction, and celebrity imitation on general self-esteem, the family self-esteem and school self-esteem, and body satisfaction on all three sub dimensions of self-esteem.
Journal of The Korean Society of Agricultural Engineers
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v.58
no.6
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pp.39-45
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2016
In this paper, analyzes the characteristics of self-weight consolidation on the dredged clay according to the fines content and falling height. Research was performed with the dredged clay sampled by Sae-mangeum field site. Classification of fines content was performed by sieve analysis test. After adjusting the fine content, self-weight consolidation tests were carried out focussing on the variation of fines content and falling heights. From the test results of the self-weight consolidation test, samples with high fines content had reached sedimentation completion more later than ones with less fine content samples. In other words, the start of self-weight consolidation was slowing down with increasing of fines content. Also, from the test results of calculating the coefficient of sedimentation consolidation, the coefficient value were increased with the fines content increases. In addition, the change of sedimentation ratio and volume ratio showed more higher changed value as the fine content increases. Thus, it is important to consider the fines content when estimate the settlement time of dredged soil in field dredge work.
Applicability of existing methods of predicting consolidation settlement was assessed by analyzing results of centrifuge tests modelling self-weight consolidation of soft marine clay. From extensive literature review about self-weight consolidation of soft marine clays located in southern coast in Korea, constitutive relationships of void ratio-effective stress-permeability and typical self-weight consolidation curves with time were obtained by centrifuge model experiments. For the condition of surcharge loading, exact solution of consolidation settlement curve was obtained by Terzaghi's consolidation theory and was compared with the results predicted by currently available methods such as Hyperbolic method, Asaoka's method, Hoshino's method and ${\sqrt{S}}$ method. All methods were found to have their own inherent error to predict final consolidation settlement. From results of analyzing the self-weight consolidation with time by using those methods, Asaoka's method predicted the best. Hyperbolic method predicted relatively well in error range of 2~24% for the case of showing the linearity in the relationship between T vs T/S in the stage of consolidation degree of 60~90 %. For the case of relation curve of T vs $T/S^2$ showing the lineality after the middle stage, error range from Hoshino method was close to those from Hyperbolic method. However, Hoshino method is not able to predict the final settlement in the case of relation curve of T vs $T/S^2$ being horizontal. For the given data about self-weight consolidation after the middle stage, relation curve of T vs T/S from ${\sqrt{S}}$ method shows the better linearity than that of T vs $T/{\sqrt{s}}$ from Hyperbolic method.
An, Yong-Hoon;Kwak, Tae-Hoon;Lee, Chul-Ho;Choi, Hang-Seok;Choi, Eun-Seok
Proceedings of the Korean Geotechical Society Conference
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2010.03a
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pp.495-508
/
2010
Vertical drains are commonly used to accelerate the consolidation process of soft soils, such as dredged materials. The installation of vertical drain provides a radial drainage path to water in the deposit soil in addition to the vertical direction. An estimation of time rate of settlement is considerably complicated when vertical drains are installed to enhance consolidation process of dredged material because the vertical drains are commonly installed before self-weight consolidation is ceased. In this paper, the vertical drain theory developed by Barron(1948) is applied to analyze the non-linear consolidation behavior considering radial drainage. The overall average degree of self-weight consolidation of the dredged soil under the condition that the water is drained in both radial and vertical directions is estimated using the Carillo(1942) formula. In addition, the Morris(2002) theory and the one-dimensional non-linear finite strain numerical model, PSDDF, are applied to analyze the self-weight consolidation in case of only the vertical drainage is considered. The new analysis approach proposed herein can simulate properly the time rate of the self-weight consolidation of dredged materials that is facilitated with vertical drains.
KSCE Journal of Civil and Environmental Engineering Research
/
v.43
no.2
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pp.187-193
/
2023
This paper presents the buckling behavior of a pile considering its self-weight. The differential equation and boundary conditions governing the buckling of partially embedded piles in nonhomogeneous soils are derived. The buckling load and mode shape of the pile are numerically computed by the Runge-Kutta method combined with the Regula-Falsi algorithm. The obtained numerical solutions for bucking loads agree well with the results available from the literature. Numerical examples are given to analyze the buckling load and mode shape of the piles as affected by the self-weight, embedment ratio, slenderness ratio and boundary condition of the pile as well as the aspect ratio and rigidity ratio of the subgrade reaction. It is found that the self-weight of the pile leads to the reduction of the buckling load, indicating that neglecting the effect of self-weight may overestimate the buckling load of partially embedded piles.
The purpose of this study is to develop self-efficacy promotion program and to test its effects on self-efficacy, self-care, physiologic index of hemodialysis patients after applying this program to them. Preliminary study was carried out to identify the levels and types of self-care, self-efficacy of hemodialysis patients. To develop self-efficacy promoting program, several discussions with nursing professors and nurse specialists on hemodialysis patients were made after in-depth literature review on the area. Through these processes, the self-efficacy promoting program including 20 minutes long videotape and other counciling documents were completed. This videotape consisted of specific self-care techniques for hemodialysis patients including management of fistula, measurement of blood presure and body weight, special diets, medications, exercise and rest, management of physical problems and social adjustment. Two group equivalent pre and post test quasai-experimental research design was used in this study. The total subjects were 34 hemodialysis patients who received hemodialysis three time per week at 1 university hospital. Seventeen experimental group subjects were matched with control group subjects in sex and age. Data were analysed with the SPSS window program. Homogeniety between experimental and control group pretest data was tested by x$^2$ and t-test. There were no significanct differences in general characteristics, illness history, specific self-efficacy and self-care between the two groups. The differences of general self-efficacy of two groups were tested with the Repeated Measure ANCOVA because of significant differences of pretest data of general self efficacy between two groups. The differences of self-efficacy and self-care of two groups were tested with Repeated Measure ANOVA and the differences of physiologic indecies including blood potassium level and blood phosphorus level and interdialytic weight gain were tested by t-test. The results were as follows: 1. There was no significant difference in general self-efficacy between the two groups over four different time, and no interaction by groups and by time. 2. There was significant difference in specific self-efficacy between the two groups over four different time, and interaction by groups and by time. 3. There was significant difference in self-care between the two groups over four different time, and interaction by groups and by time. 4. There were no significant differences of blood potassium level and blood phosphorus level, but there was significant difference of interdialytic weight gain between the two groups. From the results above, it can be concluded that the self-efficacy promotion program for hemodialysis patients was effective to improve degree of specific self-efficacy and self-care and to decrease interdialytic weight gain. Considering results, the followings are recommended: 1) Repeated studies are needed for another hemodialysis patients. 2) This program can be used for improving degree of self-efficacy and self-care of hemodialysis patients by nurse practitioner and nurse educator.
This study examined effects of self-perceived obesity, peer victimization, stress, and maternal child rearing behaviors on self-esteem in an obese group(OG) and a normal weight group(NWG) of elementary school children. Subjects were 1,501 elementary school children in the 4th to the 6th grades in Seoul, Busan, Daegu, Gwangju, and Andong and their mothers. Major findings were that maternal child rearing behaviors and stress related to parents and home environments influenced children's self esteem only in the NWG; school-related stress was an influential variable on children's self esteem in both the NWG and OG. Peer victimization influenced children's self-esteem in both NWG and OG. Self-perceived obesity influenced some domains of children's self-esteem, especially in girls.
Kim, Mi-Ok;Eun, Jong-Geuk;Chang, Un-Jae;Sawano, Kayoko;Miyamoto, Tokuko
Preventive Nutrition and Food Science
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v.14
no.4
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pp.303-309
/
2009
This study compares Korean and Japanese college women's self-evaluation on obesity and examines their attitude to weight control. The subjects of this study were 101 college women residing in Daegu-si of Korea and 123 Japanese college women living in Saga-ken of Japan. A survey was conducted by each of the participants and was analyzed. This self-evaluation on obesity revealed that 47.5% of Korean college women answered that they were obese while 31.7% of Japanese college women responded they were. The results of this study show that there are about 5% of college women in both Japan and Korea who thought they were obese, even though they were actually normal or underweight. Both Korean and Japanese women who considered themselves obese selected wrong eating habits as the cause of their obesity. In terms of their recognition on ashamedness, Japanese college women showed rather stronger recognition than Korean ones. In addition, more Korean college women responded that they had been suggested to lose weight than Japanese ones. In terms of the factors that motivate weight control, few women in either Korea or Japan controlled their weight for health reasons. Most of the Korean and Japanese college women chose the size of their clothes, their undesirable look reflected on the mirror, or having no boyfriend as the chief motivating factors for weight control. In terms of their attitude towards weight control, Japanese college women checked their weight more frequently than Korean ones. Moreover, both Korean and Japanese college women were directly motivated to lose weight while they were talking with their friends.
Ryu, Sang;Roh, Kyung Hwan;Choi, Kwang Hyeon;Kim, Won Guk;Lee, Won Kyung;Kim, Do Hee;Yang, Kuk Hyeon
Ceramist
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v.21
no.4
/
pp.427-432
/
2018
In this study, the aspherical lens for optical communications produced not with an one-step pneumatic type of external pressurization system (existed GMP process) but a constant weight of self-loaded mold put up to upper core. So the lens is molding with self-loaded weight molding and it calls Weight Molding process. In self-loaded molding process, we measured changes of center thickness molding lenses with each variable molding temperatures and time to find the effect of center of lens thickness to search key factors. As experimental results, the center thickness reach to targeted lenses step time value was changed drastically and it depends by molding temperature. If the molding temperature gets higher, the targeted lens that is reaching to the center thickness step time value was decreased. To find the effect of life improvement on mold core by imposing the self-loaded molding process we molded with GMP(Glass molding press) method and self-loaded molding method for 9,000 times and measured the lenses shape accuracy and surface roughness to evaluate the core life. As a result the self-loaded molding method core has 2,000 times longer that GMP (Glass molding press) method. If we adopt self-loaded molding method of the optical aspherical lens molding in the future, we expect that it would reduce the expense of changing the molds by molding core life improvements.
The purpose of this study was two-fold. First, comparisons on the psychological and physical attributes of normal weight, overweight, and obese children were conducted. Second, the influence of BMI and physical fitness interaction on psychological adaptation in children with obesity was explored. Participants were 245 children between the ages of 9 and 13 years (64.5% males). Data on children considered overweight (n = 45) or obese (n = 78) were gathered from the Korean Obese Children's Physical Activity (KOCPA) projects. Normal weight children (n = 122) were recruited from two Seoul elementary schools. Psychological measurements included Weight Efficacy Life-style Questionnaire (WEL), Physical Self-efficacy Scale (PSES), Child Dietary Self-efficacy Scale (CDSS), Self-concept Inventory (SCI), and the Korean version of the Pediatric Quality of Life Intervention TM Version 4.0 Generic Core Scales (PedsQLTM4.0). BMI (kg/m2) and physical fitness (e.g., aerobic endurance, flexibility) were recorded by experts in exercise physiology. Results showed that children in the high BMI group reported poorer psychological adaption and demonstrated lower physical fitness when compared to the remaining groups. Compared to normal weight children, children considered overweight and obese were found to have lower physical self-efficacy, more negative self-concept, and poorer quality of life. Further, these children also had significantly lower physical fitness levels than their normal weight counterparts. Physical fitness was found to have a significant main effect on weight efficacy (WEL), physical self-efficacy (PSES), and quality of life (PedsQL) in children considered overweight or obese. A significant BMI-physical fitness interaction effect was found for self-concept (SCI) only. Children with higher BMI reported poorer self-concept regardless of fitness level whereas children with lower BMI and higher fitness reported more positive self-concept. Implications and limitations are discussed.
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