• Computational Structural Engineering
• /
• v.7 no.1
• /
• pp.91-98
• /
• 1994

Design sensitivity analysis method for the vibration of vehicle structure is developed using adjoint variable method. A variational approach with complex response method is used to derive sensitivity expression. To evaluate sensitivity, FEM analysis of ship deck and vehicle structure are performed using MSC/NASTRAN installed in the super computer CRAY2S, and sensitivity computation is performed by PC. The accuracy of sensitivity is verified by the results of finite difference method. When compared to structural analysis time on CRAY2S, sensitivity computation is remarkably economical. The sensitivity of vehicle frame can be used to reduce the vibration responses such as displacement and acceleration of vehicle.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.39 no.1
• /
• pp.106-120
• /
• 2015

This study analyzed the effects of website and consumer's characteristics on price sensitivity as well as the effects of price sensitivity on repurchasing and switching intention. It ascertains differences in: website and consumer's characteristics, price sensitivity, and repurchasing and switching intention according to type of internet shopping mall. A survey was conducted from July 10 to August 20 in 2013, and 492 responses were used for data analysis. As a result, the reputation, ease of price search, and depth of product information positively influenced the price search and the interactivity of website characteristics positively influenced price importance. Product knowledge and information search of fashion consumers positively influenced price sensitivity. Also, the price sensitivity of internet fashion consumer positively influenced repurchasing intention. The price search positively affected the switching intention, while the price importance negatively affected the switching intention. Last, there were significant differences in the reputation, ease of price search, information search, price sensitivity, repurchasing and switching intention according to type of internet shopping mall.

• Korean Journal of Oriental Medicine
• /
• v.13 no.3
• /
• pp.125-131
• /
• 2007

Objectives: We intended to know sensitivity, specificity and relation of diagnosis methods of Sasang Constitution. Methods: We compared QSCC II, PSSC, Body measurement dignosis results with gold standard ones which were diagnosed by Sasang Constitution specialist, and analyzed by crosstables to get the sensitivity and specificity of those. Results and conclusions 1. Sensitivity and specificity of one diagnosis method were low, so call, in QSCC II, Taeumin is 49% in sensitivity, 97% in specificity, Soeumin is 67%, 69%, Soyangin is 59%, 75%, in Body measurement, Taeumin is 66%, 89%, Soeumin is 70%, 82%, Soyangin is 49%, 78%. in PSSC, Taeumin is 57%, 90%, Soeumin is 88%, 62%, Soyangin is 18%, 88%. 2. When two diagnosis methods are consistent each other, sensitivity and specificity are more higher than one diagnosis method. 3. When three diagnosis methods are all consistent, sensitivity and specificity are most highest, but in Soyangin, those are decreased comparing with the case of consistency between QSCC II and Body measurement.

• The Korean Journal of Applied Statistics
• /
• v.33 no.5
• /
• pp.541-553
• /
• 2020

The receiver operating characteristic (ROC) curve is expressed as both sensitivity and specificity; in addition, some optimal thresholds using the ROC curve are also represented with both sensitivity and specificity. In addition to the sensitivity and specificity, the expected usefulness function is considered as disease prevalence and usefulness. In particular, partial the area under the ROC curve (AUC) on a certain range should be compared when the AUCs of the crossing ROC curves have similar values. In this study, partial AUCs representing high sensitivity and specificity are proposed by using sensitivity and specificity lines, respectively. Assume various distribution functions with ROC curves that are crossing and AUCs that have the same value. We propose a method to improve the discriminant power of the classification models while comparing the partial AUCs obtained using sensitivity and specificity lines.

• Human Ecology Research
• /
• v.51 no.4
• /
• pp.413-424
• /
• 2013

The purpose of this study is to examine the influence of social face sensitivity on vanity and consumption behavior. Questionnaires were administered to 461 college students living in Deagu Metropolitan City and Kyungbook province. Frequency, factor analysis, reliability analysis, regression analysis, and t-test were used for data analysis. Social face sensitivity was categorized into consciousness of being embarrassed, social formality, other consciousness and prestigiousness. Vanity factors were found as physical price, achievement concern, achievement price, and physical concern. Consumption behavior were categorized into 5 factors such as ostentatious consumption, impulsive buying, external information search, brand trust, utilization of internet information and material-oriented. Consciousness of being embarrassed, social formality, and other consciousness, the sub-variables of social face sensitivity had significant effects on achievement concerns and physical concerns. Other consciousness of social face sensitivity had significant effects on all factors of consumption behaviors. There was significant differences in the prestige of social face sensitivity and physical concerns of vanity and ostentatious consumption, impulsive buying, and also in external information search and utilization of internet information of consumer behavior. This indicates that women showed high physical concerns for vanity and ostentatious consumption, impulsive buying, external information search and utilization of internet information of consumption behavior while men care more about prestigiousness of social face sensitivity.

• Journal of Families and Better Life
• /
• v.32 no.3
• /
• pp.31-44
• /
• 2014

The purpose of this study is to examine the effect of female adolescents' rejection sensitivity, impulsivity and guilt on their binge eating behavior. Questionnaires on rejection sensitivity, impulsivity, guilt and binge eating behavior were administered to 607 female adolescents in Changwon and Ulsan. Of 572 collected copies, 402 were deemed valid and statistically analyzed through frequency analysis, mean and standard deviation, t-test, Pearson's correlation analysis, multiple regression analysis and stepwise multiple regression analysis using SPSS Win 12.0. The results of the study were as follows: 1) School type was found to make a significant difference in rejection sensitivity, overall impulsivity, guilt and binge eating behavior; however, its influence was not significant on the sub-factors of impulsivity: motor impulsivity, unplanned impulsivity and cognitive impulsivity. 2) For female middle school students, rejection anger sensitivity, rejection depression sensitivity and motor impulsivity were found to have a significant influence on binge eating behavior for both middle school and high school girls. Guilt, however, was found to be influential for female high school students only. 3) Impulsivity was found to have a partial mediating effect on the relationship between female adolescents' rejection sensitivity and binge eating behavior.

• Human Ecology Research
• /
• v.57 no.3
• /
• pp.445-457
• /
• 2019

This study investigated the impact of parentification on ambivalence over the emotional expression of early adults who had a sibling with disabilities and examined if rejection sensitivity moderated the relationship of parentification and ambivalence over emotional expression. Participants consisted of 116 siblings in early adulthood who had a sibling with disabilities (45 male; 71 female). The data were collected from 13 centers for family disability, four community rehabilitation centers, three parent societies for people with disabilities, and three self-help groups in Seoul, Busan, and Gyeonggi province. The levels of ambivalence over emotional expression, parentification, and rejecton sensitivity were measured by the Ambivalence over Emotional Expression Questionnaire (King & Emmons, 1990), the Filial Responsibility Scale-Adult (Jurkovic, Thirkield, & Morrell, 2001), and the Rejection Sensitivity Questionnaire (Downey & Feldman, 1996), respectively. The PROCESS Macro program examined the moderating model. The Results indicated that both levels of parentification and rejection sensitivity increased the level of ambivalence over emotional expression of non-disabled siblings. In addition, rejection sensitivity moderated the effect of parentification on ambivalence over emotional expression. The influence of parentification on ambivalence over emotional expression was greater when the level of rejection sensitivity was high, compared to when it was low.

• Korean Journal of Childcare and Education
• /
• v.20 no.1
• /
• pp.73-89
• /
• 2024

Objective: The purpose of this study was to examine the effect of communication and cooperation between teachers and parents on infant care. Specifically, this study explored the direct effect of teacher-parent partnership on teacher-infant interactions and the indirect effect through teacher sensitivity. Methods: The participants of this study were 216 teachers in charge of infant classes at child care centers located in Gyeonggi-do. They responded to questionnaires on teacher-parent partnership, their sensitivity, and teacher-infant interactions. Data were analyzed using structural equation modeling. Results: First, teacher-parent partnership did not have a direct impact on teacher-infant interactions. Second, teacher-parent partnership indirectly influenced teacher-infant interactions through teacher sensitivity. In other words, a high level of teacher-parent partnership was associated with a high level of sensitivity, subsequently resulting in the provision of high-quality interactions for infants. Conclusion/Implications: This study confirmed the role of teacher sensitivity as a mechanism to explain how teacher-parent partnership is linked to teacher-child interactions. The results emphasize the importance of communication and cooperation between teachers and parents in enhancing teachers' sensitivity and, ultimately, providing high-quality child care to infants.

• Nuclear Engineering and Technology
• /
• v.55 no.12
• /
• pp.4685-4694
• /
• 2023

The ability to calculate the material density sensitivity coefficients of power with respect to the material density has broad application prospects for accelerating Monte Carlo-Thermal Hydraulics iterations. The second-order material density sensitivity coefficients for the general Monte Carlo score have been derived based on the differential operator sampling method in this paper, and the calculation of the sensitivity coefficients of cell power scores with respect to the material density has been realized in continuous-energy Monte Carlo code RMC. Based on the power-density sensitivity coefficients, the sensitivity coefficients of power scores to some other physical quantities, such as power-boron concentration coefficients and power-temperature coefficients considering only the thermal expansion, were subsequently calculated. The effectiveness of the proposed method is demonstrated in the power-density coefficients problems of the pressurized water reactor (PWR) moderator and the heat pipe reactor (HPR) reflectors. The calculations were carried out using RMC and the ENDF/B-VII.1 neutron nuclear data. It is shown that the calculated sensitivity coefficients can be used to predict the power scores accurately over a wide range of boron concentration of the PWR moderator and a wide range of temperature of HPR reflectors.

• Korean Journal of Child Studies
• /
• v.37 no.4
• /
• pp.31-46
• /
• 2016

Objective: This study examined the influences of maternal and paternal psychological control and children's rejection sensitivity on relational aggression in elementary school students, and investigated whether children's rejection sensitivity mediated the relation of parental psychological control and relational aggression. Methods: The participants of this study were 596 fifth to sixth graders from seven elementary schools located in Seoul, Incheon, and Gyeonggi province. To measure the research variables, the Peer Conflict Scale (Marsee, Kimonis, & Frick, 2004), the Psychological Control Scale (Barber, 1996) and the Children's Rejection Sensitivity Questionnaire (Downey, Lebolt, $Rinc\acute{o}n$, & Freitas, 1998) were used. The data were analyzed by means of descriptive statistics and t -tests. Also, structure equation model (SEM) were used to examine the mediating role of rejection sensitivity. Results: The results of this study were as follows. First, the level of paternal psychological control increased the level of children's relational aggression whereas the level of maternal psychological control had no significant effect on it. In addition, the level of rejection sensitivity had a significant positive influence on the level of relational aggression. These tendencies were observed on both boys and girls. Second, only for boys, rejection sensitivity in upper elementary school students partially mediated the relation between paternal psychological control and relational aggression. Also, for both boys and girls, rejection sensitivity completely mediated the relation between maternal psychological control and relational aggression. Conclusion: In conclusion, the higher the level of paternal psychological control, the higher the level of children's rejection sensitivity, and subsequently the higher the level of their relational aggression.