• Journal of Information Processing Systems
• /
• v.4 no.1
• /
• pp.27-32
• /
• 2008

Minimum support and confidence have been used as criteria for generating association rules in all association rule mining algorithms. These criteria have their natural appeals, such as simplicity; few researchers have suspected the quality of generated rules. In this paper, we examine the rules from a more rigorous point of view by conducting statistical tests. Specifically, we use contingency tables and chi-square test to analyze the data. Experimental results show that one third of the association rules derived based on the support and confidence criteria are not significant, that is, the antecedent and consequent of the rules are not correlated. It indicates that minimum support and minimum confidence do not provide adequate discovery of meaningful associations. The chi-square test can be considered as an enhancement or an alternative solution.

• Journal of the Korean Society for Precision Engineering
• /
• v.15 no.7
• /
• pp.7-17
• /
• 1998

Stereolithography is a process used to rapidly produce stereolithographic parts directly from three dimensional CAD models. However design methodologies to create components to be built by stereolithography are different from those required by conventional machining processes. As a typical case in point, the support structures are required to support a component at build stage, but are later removed once building and curing are complete. These structures are used to anchor the component to the platform and to prevent sagging or distortion. This paper deals with the Support Map data structure prepared to find the appropriate regions of supports. Interferences between supports and parts, and support structure themselves as well, are checked and thus the system are searching the statically stable regions to remove the surplus support structures. Cross shaped tooth profiles are designed for easy eliminating the support structures.

• Journal of Korean Academic Society of Home Health Care Nursing
• /
• v.4
• /
• pp.76-85
• /
• 1997

In modern society, the human average life span has been prolonged due to medical benefits and changes in society, which results in the rapid and world -wide increase in the population of elderly. Consequently, the field of nursing science, as well as the field of many other discipline, has shown increasing interests in issues on the elderly. In addition, to improve the quality of life for elderiy people a great deal of effort has been made. The purpose of our study is to analyze the correlation between family support and quality of life in order to develop basic data for nursing interventions to maintain life satisfaction of the elderly. The sample consists of 108 subjects residing at home whose ages are over 65 years old. The data has been collected, from November 11, 1996 to November 23, 1996, through interviewing the elderly using a questionnarie. For the family supoort we used two: 1) the 5 - point Likert scale questionnarie developed by Gallo and Warren (Family support I) and 2) the 5-point Likert scale developed by H. S. Kang(Family support II), and for the quality of life we used the 3 - point likert scale questionnarie developed by Choi, Young Hee. For data analysis we used percentages, means, Pearson Correlation Coefficient and ANOVA. The results of our study are as follows: 1. For perceived family support I & II, the minimum score is 12 & 19, the maximum score is 32 & 46, the mean score is 24.49 & 34.90, respectively. 2. For Quality of life, the minimum score is 13, the maximum score is 39, the mean score is 28.61. 3. there is a very strong correlation between the perceived family support of the subjects and Quality of life (for I r=0.35047, p<.001 and for II r= 0.60558, p<.001). 4. The relationship between the general characteristics of the elderly and our two variables. family support and Quality of life, is as follows: 1) According to age(for II F=5.32, p<.01), the amount of monthly pocket money(for II F= 3.52, p<.05), inmate(for I F=2.93, p<.05, for II F=2.84, p<.05), economics(for I F=8.99, p<.01. for II F=7.51. p<.01), supporter(for I F=4.01. p<.01. for II F=3.43, p<.01), there is a statistically significant difference in family support. 2) According to the amount of monthly pocket money(F=6.69, p<.01), inmate(F=2.24, p<.05), economics(F=15.38, p<.01), there is a statistically significant difference in Quality of life. In conclusion, it can be said that the family support is an important variable to the Quality of the elderly life.

• Asian Oncology Nursing
• /
• v.3 no.1
• /
• pp.75-84
• /
• 2003

Purpose: this study was to identify influencing factors of burnout on oncology nurses. Method: the data was collected using a questionnaire from October 18, 2002 to November 20, 2002 in five general hospitals at Seoul. Participants of this study were the nurses who worked in the wards occupied by more than 50 percent of cancer patients. The collected data were analyzed by using the SPSS10.0 program. Result: 1. The burnout of the subjects show a mean score of 2.72 using the 5 point Likert scale. There were statistically significant difference in burnout between the general characteristics; age, marital status, educational background, job experience, position, nursing service period, and attitudes on nursing job. 2 The self-esteem of the subjects show a mean score of 3.72 using the 5 point Likert scale. The spiritual well-being of the subjects show a mean score of 3.83 using the 6 point Likert scale. The social support of the subjects show a mean score of 3.74 using the 5 point Likert scale. The job stress of the subjects show a mean score of 2.16 using the 4 point Likert scale. 3. The result of correlation between burnout and other variable was that relationship between the burnout and job stress(r=-.206, p<.05), self-esteem(r=-.417, p<.01), spiritual well-being(r=-.403, p<.01), social support(r=-.386, p<.01) were significant variables. 4. The result of the Stepwise Multiple Regression was that self-esteem (17.4%), spiritual well-being(7.9%), social support(3.4%) and job stress(2.3%) explained 31% of burn out.

• Communications of the Korean Mathematical Society
• /
• v.32 no.1
• /
• pp.65-74
• /
• 2017

In this paper, we establish a unique common fixed point theorem for T-contraction of two self maps on generalized cone b-metric spaces with solid cone. The result of this paper improves and generalizes several well-known results in the literature. Two examples are also given to support the result.

• Korean Journal of Mathematics
• /
• v.26 no.2
• /
• pp.307-326
• /
• 2018

In this paper, we derive some fixed point theorems in fuzzy metric spaces for self mappings satisfying different contractive type conditions. Some of these theorems generalize some results of Wairojjana et al. (Fixed Point Theory and Applications (2015) 2015:69). Several examples in support of the theorems are also presented here.

• Nonlinear Functional Analysis and Applications
• /
• v.27 no.3
• /
• pp.663-677
• /
• 2022

This present paper extends some fixed point theorems in rectangular b-metric spaces using subadditive altering distance and establishing the existence and uniqueness of fixed point for Kannan type mappings. Non-trivial examples are further provided to support the hypotheses of our results.

• The Pure and Applied Mathematics
• /
• v.30 no.3
• /
• pp.249-267
• /
• 2023

This manuscript is divided into three segments. In the first segment, we prove a unique common fixed point theorem satisfying generalized weak contraction on partially ordered metric spaces and also give an example to support our results presented here. In the second segment of the article, some common coupled fixed point results are derived from our main results. In the last segment, we investigate the solution of integral equation as an application. Our results generalize, extend and improve several well-known results of the existing literature.

• The Journal of Korean Society for School & Community Health Education
• /
• v.11 no.1
• /
• pp.93-115
• /
• 2010

Objectives: This study intends to understand the difference of social support levels and the relationship between social support the health status, college adjustment and academic achievement in the college student. Methods: Data were obtained from self-administered questionnaire of 416 college student. We measured the demographic characteristics, social support (tangible support, appraisal support, belonging support, self-esteem support), health status (36-item short-form health survey(SF-36), center for epidemiologic studies-depression(CES-D), perceived stress scale(PSS)), student adaptation to college questionnaire(SACQ), average grades point. Chi-square test, t-test, ANOVA test, pearson correlation analysis were used for analysis factors relation of the social support of the college students. Results: In considering the degree of social support by the demographic characteristics in the college students, the social support was better for the female college students. In considering the relation between social support and health status, the students who get better social support, were good in health depression and perceived stress status. When they got better social support their college adjustment and academic achievement were good. The result was statistically significant. Conclusions: Social support for students has great influence on health, college adjustment and academic achievement of students. Psychological aspects of students should be included in the strategy of social support for students.

• Journal of the Korean Society of Safety
• /
• v.27 no.5
• /
• pp.105-110
• /
• 2012

Steel elements are widely used for temporary structures on every construction site. but despite its strong resistences against heavy concrete volumes, they are easily eroded by oxygens in the space as times have been gone. If they are used several times in the construction fields, their elements are rusted and deformed and the strength is gradually reduced through the weak part. From this point of view, aluminum pipe support has been developed in stead of steel pipe sopport with enhancing durability against oxygens all the more. The developed aluminium pipe support has been lighter than steel unit, so workability has been improved. In another advantage of aluminium pipe support, different level control is possible with being equipped with the level control nut which enables the length adjustment of aluminium pipe support and the collapse of aluminum pipe support could be also prevented from the structures in the long term.