• 대한간호학회지
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• 제35권6호
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• pp.1044-1053
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• 2005

Purpose: This study was aimed to evaluate the effects of a maternal education program based on the temperament theory on the temperamental goodness-of-fit between mother and child. Method: The research method was a nonequivalent, control group, non-synchronized design and the experimental period was from May 10, 2004 to July 24, 2004. The subjects were mothers who had children 3-4 years old who registered in eight kindergartens or infant schools in M city. Among the total 94 subjects, 47 were allocated as an experimental group and 47 were a control group. Using the SPSS/WIN 10.0 program, the data was analyzed by a Chi-square test, and t-test. Result: 1. After treatment with a maternal education program based on the temperament theory, the experimental group significantly decreased in scores for perceived children's behavior problems in comparison to the control group(t=-4.01, p<.001). 2. After treatment with a maternal education program based on the temperament theory, the experimental group did not significantly decrease in scores for parenting stress in comparison to the control group(t=-.85, p=.40). 3. After treatment with a maternal education program based on the temperament theory, the experimental group did not significantly decrease in scores for rejective parenting behaviors in comparison to the control group(t=-1.32, p=.19). Conclusion: A maternal education program based on the temperament theory is a useful intervention to decrease perceived children's behavior problems.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 추계학술대회 논문집 전력기술부문
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• pp.179-182
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• 2004

본 논문에서는 Lie Group theory에 기준한 $H_{\infty}$ 스위칭 제어기에 의한 비선형 전력계통안정화장치 (NPSS)를 설계하고 이를 1기 무한 모선에 적용하여 제안된 제어기의 제어효과 및 영향분석을 실시하였다. 이 분석에 사용된 기존의 PSS type은 Lead-lag 형태의 선형화 제어기이며, 제안된 제어기는 전력계통에 매우 강한 비선형을 반영하여 제어가 가능한 Lie Group theory에 기준한 비선형 제어기로 되어있다. 제안된 Lie Group theory에 기준한 비선형 전력계통안정화장치 (NPSS)의 효과분석은 MATLAB을 이용하여 1기 4차 비선형 전력계통의 모델에 적용하여 시뮬레이션하였다.

• 한국콘텐츠학회논문지
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• 제17권6호
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• pp.490-503
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• 2017

본 연구의 목적은 선택이론 포커스 그룹 활동이 주부들의 정신건강 증진에 효과가 있는지를 확인하는 것이다. 본 연구를 위하여 Glasse의 저서인 '경고: 정신과 치료가 당신의 정신건강을 해친다' 를 교육 및 토론의 매체로 활용하였다. 참여자는 2개 그룹 24명의 주부들이었으며 이들 중 12명은 실험군으로, 다른 12명은 대조군으로 배정하였다. 집단 활동 시작 시기에 각 집단을 대상으로 특성분노, 특성불안, 우울 및 심리적 안녕감 척도로 설문조사를 실시하였고, 집단 활동 후, 그리고 5주 후 다시 같은 설문조사를 실시하였다. 연구 결과는 다음과 같다. 첫째 실험군의 특성분노, 특성불안, 우울의 수준은 대조군과 비교하여 실험 직후 및 추후 조사에서 모두 낮았다. 둘째, 실험군의 심리적 안녕감의 수준은 대조군과 비교하여 실험 직후 및 추후 조사에서 모두 높았다. 따라서 본 연구를 통하여 선택이론 포커스 집단은 정신건강의 증진에 효과가 있음을 확인할 수 있었다.

• 한국수학사학회지
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• 제29권3호
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• pp.157-172
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• 2016

Sophus Lie's research is regarded as one of the most important mathematical advancements in the $19^{th}$ century. His pioneering research in the field of differential equations resulted in an invaluable consolidation of calculus and group theory. Lie's group theory has been investigated and constantly modified by various mathematicians which resulted in a beautifully abstract yet concrete theory. However Lie's early intentions and ideas are lost in the mists of modern transfiguration. In this paper we explore Lie's early academic years and his object of studies which clarify the ground breaking ideas behind his theory.

• 수산경영론집
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• 제45권3호
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• pp.55-69
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• 2014

We try to test the pecking order theory of Korean fisheries firm's capital structure using debt capacity. At first, we estimate the debt capacity as the probability of assigning corporate bond rating from credit-rating agencies. We use logit regression model to estimate this probability as a proxy of debt capacity. The major results of this study are as follows. Firstly, we can confirm the fisheries firm's financing behaviour which issues new debt securities for financial deficit. Empirical test of SSM model indicates that the higher probability of assigning corporate bond rating, the higher the coefficient of financial deficit. Especially, high probability group follows this result exactly. Therefore, the pecking order theory of fisheries firm's capital structure applies well for high probability group which means high debt capacity. It also applies for medium and low probability group, but their significances are not good. Secondly, the most of fisheries firms in high probability group issue new debt securities for their financial deficit. Low probability group's fisheries firms also issue new debt securities for their financial deficit within the limit of their debt capacity, but beyond debt capacity they use equity financing for financial deficit. Therefore, the pecking order theory on debt capacity come into existence well in high probability group.

• 대한간호학회지
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• 제47권2호
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• pp.199-210
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• 2017

Purpose: The purpose of this study was to examine the effects of a group counseling program based on goal attainment theory on self-esteem, interpersonal relationships, and school adjustment of middle school students with emotional and behavioral problems. Methods: Forty-four middle school students with emotional and behavioral problems (22 in the experimental group and 22 in the control group) from G city participated in this study. Data were collected from July 30 to September 24, 2015. The experimental group received the 8-session program, scheduled once a week, with each session lasting 45 minutes. Outcome variables included self-esteem, interpersonal relationship, and school adjustment. Results: There were significant increases for self-esteem (t=3.69, p=.001), interpersonal relationship (t=8.88, p<.001), and school adjustment (t=4.92, p<.001) in the experimental group compared to the control group. Conclusion: These results indicate that the group counseling program based on goal attainment theory is very effective in increasing self-esteem, interpersonal relationship, and school adjustment for middle school students with emotional and behavioral problems. Therefore, it is recommended that the group counseling program based on goal attainment theory be used as an effective psychiatric nursing intervention for mental health promotion and the prevention of mental illness in adolescents.

• Journal of applied mathematics & informatics
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• 제42권3호
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• pp.521-538
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• 2024

In this paper, using the notion of the imprecise set, the idea of an imprecise group is introduced including some examples. The two key rules of classical set theory are obeyed by this extended version of fuzzy sets, which the existing complement definition of a fuzzy set failed to do. With the support from general group theory, the paper also provides some fundamental properties of an imprecise group here. Additionally, it includes a few characteristics of imprecise subgroups, and abelian imprecise group.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제19권4호
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• pp.599-620
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• 2005

There can be two different approaches to introducing Abstract Algebra to undergraduate students: One is to introduce group concept prior to ring concept, and the other is to do the other way around. Although the former is almost conventional, it is worth while to take the latter into consideration in the viewpoint that students are already familiar to rings of integers and polynomials. In this paper, we investigated 16 most commonly used Abstract Algebra undergraduate textbooks and found that 5 of them introduce ring theory prior to group theory while the rest do the other way around. In addition, we interviewed several undergraduate students who already have taken an Abstract Algebra course to look into which approach they prefer. Then we compare pros and cons of two approaches on the basis of the results of the interview and the historico-genetic principle of teaching and learning in Abstract Algebra and suggest that it certainly be one of alternatives to introduce ring theory before group theory in its standpoint.

• 한국해안해양공학회지
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• 제6권1호
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• pp.61-71
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• 1994

2차 비선형 이론과 잉여응력 이론으로는 해석이 곤란한 실측된 불규칙파군에 따른 장주기파를 유도할 수 있는 식을 제시하였다. Longuet-Higgins와 Stewart(1965)가 제안한 식을 수정하여 보다 쉽게 파군속에 내재된 장주기파를 유도할 수 있게 하였다. 제시된 방법의 결과는 2차 비선형 이론으로 계산한 규칙 파군 및 불규칙 파군의 결과와 매우 잘 일치하였다. 특히 천수역에서는 2차 비선형 이론 및 잉여능력 이론의 이론식과 동일하게 됨을 알았다.

• 한국실내디자인학회논문집
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• 제38호
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• pp.75-82
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• 2003

The symmetry is general geometric design principal in contemporary architecture shape. But, Symmetry sometimes easily causes unreasonable design. In some reason, two of symmetric units in the apartment, one side of unit have very reasonable plan and arrangement but opposite side unit nay not. For example, if the kitchen on right unit had right-handed arrangement, the symmetrical other would have left-handed kitchen arrangement. In addition to this, if each house unit has the same plan but different direction, each unit has different usage or affects the residents' life pattern. Nevertheless, Architects use only one unit plan to design public housing development by using symmetric operator (mirror, proper rotation, inversion center) at their option. This study suggests that using group theory and mathematical matrix rather than designer's discretion can solve this symmetry problem clearly. And, this study analysis the merits and demerits between each symmetrical pair of unit plan shapes by using mathematical point group theory and matrix.