• Korean journal of food and cookery science
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• v.16 no.6
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• pp.663-669
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• 2000

As an attempt to develop new functional beverages, various ingredients including pine needle, P Japonica, C. Militaris, black tea, artemisia, cocoa, and persimmon leave tea, were used to make fermented beverages and their chemical and sensory properties were evaluated. The acidity of beverages produced was the highest in the one with C. Militaris, and the lowest in the ones with persimmon leave tea and pine needle. The pH of P Japonica beverage, 2.54, was the lowest among all. The sugar content was the highest in the one of C. Militaris and the lowest in cocoa-used one. In sensory evaluation, the fermented beverages prepared with persimmon leave tea, pine needle, and artemisia were significantly more preferable in acceptability than the others (p<.001). For purchase intention, the beverage prepared with persimmon leave tea got the highest score followed by the ones with pine needle and artemisia, and the scores of those three beverages were significantly higher than the others (p<.001). Hunter color test showed that fermented beverage added Black tea was the lowest in lightness, but the highest in redness and yet-lowness(p<.001). The beverages with high scores in sweet odor, sweet taste, and purchase intention were more favored in the sensory evaluation looking at the correlation among the sensory properties. And the lightness in color had a positive correlation, and the redness and yellowness had negative correlations with appearance quality of the beverages. Chemical properties like pH and acidity were negatively correlated with the acceptability, and the sugar content was positively correlated with sweet odor.

• Korean Journal of Social Welfare Studies
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• v.47 no.3
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• pp.35-60
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• 2016

This study analyzes the unequal distributional effect of threesome of family policy(child benefit, childcare services and parental leave) focusing on family income, mother's status in labor market in Korea. To measure the unequal distributional effect of family policies, this study used the quantile analysis. The results of this study are as follows. First, in terms of childcare service and parental leave, there is some difference of the rate of use by family income and mother's status in labor market. Second, total public fund for childcare services, child benefits and parental leave are high in fourth income quintile, and mothers work regularly. Third, public fund is high in fourth income quintile, dual earners, mothers work regularly, the family has many number of child, and is high educational level of parents. Finally, the results of quantile regression show the biggest factors of unequal distribution of family policy are mother's stable work and it deepens the inequalities and differences. Based on these results, this article suggests that more equal right to access and use family policy regardless of the type of employment, adequate minimum income through income transfer, and universal application of the policy.

• Journal of the Korean Mathematical Society
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• v.31 no.3
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• pp.353-365
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• 1994

During the past century, one of the most active and continuing subjects in matrix theory has been the study of those linear operators on matrices that leave certain properties or subsets invariant. Such questions ar usually called "Linear Preserver Problems".

• Proceedings of the Korea Water Resources Association Conference
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• 1995.05a
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• pp.417-422
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• 1995

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1995.10b
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• pp.92-97
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• 1995

In medical diagnostic process we are dealing with the preliminary diagnosis based on the interview chart. We will quantify the qualitative information of a patient by dual scaling and establish both prototypes of fuzzy diagnostic sets and the fuzzy linear regressions. Its utility is shown in the diagnosis of headache and CAFDDH.

• The KIPS Transactions:PartC
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• v.10C no.3
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• pp.265-272
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• 2003

RBAC is an Access Control Mechanism for security administration of system resource and technique attracting in commercial fields because of reducing cost and complexity of security administration in large network. Many RBAC's research is progressive but several problems such as the delegation of role have been pointed out concerning the mechanism. It is necessary that a person's role delegate someone with reliability by reasons of a leave of absence, sick leave and the others. But the existing RBAC standards don't give definition of the delegation of roles. In this paper, we propose RBAC model that delegator can delegate subset of role and permission to a delegatee so that more efficient access control may be available.

• Journal of Family Resource Management and Policy Review
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• v.20 no.1
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• pp.61-87
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• 2016

The purpose of this study is to demonstrate how having a family care program in the workplace for working women with preschool children affects these women's work and family life. This study employs a panel analysis based on data from the Korean Longitudinal Survey of Women and Families. The major results are as follows. First, financial support for nursery care is only significantly related to the turnover of married women with preschool children. Second, the negative effects of work on the family are significantly influenced by financial support for nursery care and maternity leave. Third, financial support for nursery care is also significantly related to the positive effects of work on the family. In conclusion, a family-friendly care program including financial support for nursery care and maternity leave in the workplace is an important support system for working mothers in raising their children.

• Journal for History of Mathematics
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• v.29 no.1
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• pp.31-44
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• 2016

This essay aims to suggest roughly the "philosophy of limits." The limits mainly refer to those of human experiences and rational thoughts. The philosophy of limits consist of three theses and two consequences(L, M). (1) The limits are necessarily supervenient in the course of searching knowledge. (2) The limits cannot be dissipated ultimately. (3) To recognize the limits is not only an intellectual recognition but also a beginning of whole personality's reaction. (L) It is a rational decision to accept the limits and leave the margins (yeoback/yeoheuck) rather than to try to remove them. (M) To leave the margins (yeoback/yeoheuck) is characteristic of being human, and enables one to harmoniously communicate with others. To justify the philosophy of limits, this essay examine the limits discussed in mathematics and philosophy: set theory, Godel's Incompleteness Theorem, Galois Theorem in mathematics; and Hume, Kant, Kierkegaard, and Wittgenstein in philosophy. I try to interpret consciousness of limits in various cultures. I claim that consciousness of the limits contribute to lucidity of human identity, communication between persons, stimulation of creative thinking.

• Journal of Korean Physical Therapy Science
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• v.8 no.1
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• pp.833-840
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• 2001

This study was attempted to examine the relationship between job satisfaction and turnover intention of physical therapist in order to suggest some method to enhance their job performance and the degrees of job satisfaction. High turnover intention of physical therapist is one of the serious problems at the present time which providing low quality physical therapy. The data were collected from July 1, to August 31, 2000 and analyzed by ANOVA, Pearson Correlation Coefficients. The summarized result are as follows: 1. The job satisfaction score of physical therapists showed the highest of the pride of patient treatment and total mean score was 2.96. 2. Those who were in the range of 26 to 30 years of age showed the strongest desire to leave the hospital 3. There were 68.8% in male. 47.6% in female who hoped to turnover intention. 4. There were significant difference between those who want to leave and those who want remain in relation patient number, work hospital work years. 5. There were no significant difference between those who want to turnover intention and those who want remain in relation patient number and work years. 6. The major reason for job satisfaction were work time and work areas.

• Journal of Communications and Networks
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• v.8 no.1
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• pp.59-69
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• 2006

Bluetooth is reputed as a wireless networking technology supplying ad-hoc networks between digital devices. In particular, Bluetooth scatternet is an essential part of dynamic ad-hoc networks. Yet, there have not been sufficient researches performed on scatternet environment. This paper proposes a scatternet reformation algorithm for ad-hoc networks for instances where some nodes enter or leave the scatternet. The proposed algorithm is a general algorithm that can be applied to many types of Bluetooth scatternet regardless of the topology. The proposed algorithm is made for two reformation cases, i.e., nodes leaving and nodes entering. For the reformation when nodes leave a scatternet, the recovery node vector (RNV) algorithm is proposed. It has short reformation setup delay because the process involves a single page process (not including inquiry process). For the reformation when nodes enter a scatternet, the entry node algorithm is proposed. This is a simple and easily implementable algorithm. In this paper, real hardware experiments are carried out to evaluate the algorithm's performance where the reformation setup delay, the reformation setup probability and the data transfer rate are measured. The proposed algorithm has shown improvement in the reformation setup delay and probability.