• Korean Journal of Childcare and Education
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• v.11 no.1
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• pp.249-267
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• 2015

This study aims to examine the effect of child-centered group play therapy on the improvement of withdrawn preschool children's daily stress, anxiety, peer interaction and EEG variation. The research subjects are 12 children of 3-5 years of age who are over 65T in the social-withdrawal scale of KPRC(Korean Personality Rating Scale for Children). They were recommended by class teachers due to the withdrawal behavior at D kindergarten in Seoul. The experimental group received 12 sessions of the child-centered group play therapy program, twice a week for 35 minutes. But the control group did not receive any of the child-centered group play therapy program. To verify the effects of the program, a Mann-Whitney-U test of the non-parametric was preceded and homogeneity between the two groups was verified. Also, a Wilcoxon's signed-rank test was conducted to check on the pre-to-post changes of daily stress, anxiety, peer-interaction and EEG variation by using SPSS 18.0. The results of this research showed that the child-centered group play therapy program decreases daily stress and anxiety, while it increases positive peer-interaction and the EQ of withdrawal children. The result of this study serves as a baseline data about the effects of child-centered group play therapy for withdrawal children with emotional difficulties.

• Journal of Gifted/Talented Education
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• v.18 no.3
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• pp.519-542
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• 2008

The purpose of the present study was to examine the emotional characteristics related to gifted children's happiness, such as happiness index, optimism, psychological wellbeing, and school education happiness. For the study, 201 gifted students who were currently enrolled in gifted education centers, 124 potentially gifted students who were nominated by teachers for their scientific interests and high performances, and 141 general middle school students participated in the study. The results indicated that both the gifted and the potentially gifted students showed significantly higher emotional characteristics related to happiness compared to the general students. There was no significant difference between the gifted and the potentially gifted in the diverse aspects of happiness. Interestingly, significant interaction between gender and giftedness was found. Girls were happier when they were identified as the gifted, compared to the boys. Variables related to the happiness were also investigated, and the results indicated that the peer relationship and the family happiness were the most important variables that explained gifted children's happiness in general.

• Proceedings of the Safety Management and Science Conference
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• 2007.11a
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• pp.517-522
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• 2007

본 연구는 미국경제의 영향을 비교적 많이 받고 있는 한국경제가 미국경제에서와 같이 집권정당별로 정당 간에 주가수익률을 비롯한 거시경제정책 뚜렷한 차이가 있을지를 분석하였다. 미국의 경우 공화당과 민주당은 각각 프리드먼과 케인즈 경제학을 바탕으로 그 경제 정책의 차이점을 나타내고 있다. 미국의 기존연구 결과들을 살펴보면, 대체로 주가 초과수익률, 금리수준, GDP성장률 및 실업률 등에서 집권정당별로 뚜렷한 차이점을 보이고 있는 것으로 발표되고 있다. 본 연구의 분석결과, 우리나라의 경우에는 각 집권정부별로 상이한 특징을 발견할 수 있었다. 첫째, 김영삼대통령정부들어서부터 통화정책의 외생성이 나타나면서, 통화가 증가하면서 인플레이션율에 영향을 주었고 이는 다시 주가수익률과 경기동행지수증가율에 긍정적인 작용을 한 시기로 나타나고 있다. 둘째, 김대중대통령정부 기간 중에는 주가수익률, 회사채수익률과 경기동행지수증가율 사이에 특별한 외생성이 없이 상호영향을 준 시기로 판단된다. 셋째, 노무현대통령정부 기간 동안에는 금리하향 안정세가 뚜렷한 가운데 이로 인한 유동성이 주가수익률에 연결된 시기로 보인다.

• Proceedings of the Safety Management and Science Conference
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• 2007.11a
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• pp.523-535
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• 2007

본 연구는 미국경제의 영향을 비교적 많이 받고 있는 한국경제가 미국경제에서와 같이 집권정당별로 정당 간에 주가수익률을 비롯한 거시경제정책 뚜렷한 차이가 있을지를 분석하였다. 미국의 경우 공화당과 민주당은 각각 프리드먼과 케인즈 경제학을 바탕으로 그 경제 정책의 차이점을 나타내고 있다. 미국의 기존연구 결과들을 살펴보면, 대체로 주가 초과수익률, 금리수준, GDP성장률 및 실업률 등에서 집권정당별로 뚜렷한 차이점을 보이고 있는 것으로 발표되고 있다. 본 연구의 분석결과, 우리나라의 경우에는 각 집권정부별로 상이한 특징을 발견할 수 있었다. 첫째, 김영삼대통령정부들어서부터 통화정책의 외생성이 나타나면서, 통화가 증가하면서 인플레이션율에 영향을 주었고 이는 다시 주가수익률과 경기동행지수증가율에 긍정적인 작용을 한 시기로 나타나고 있다. 둘째, 김대중대통령정부 기간 중에는 주가수익률, 회사채수익률과 경기동행지수증가율 사이에 특별한 외생성이 없이 상호영향을 준 시기로 판단된다. 셋째, 노무현대통령정부 기간 동안에는 금리하향 안정세가 뚜렷한 가운데 이로 인한 유동성이 주가수익률에 연결된 시기로 보인다.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10c
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• pp.137-139
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• 1999

concurrent reactive system은 일반적으로 매우 많은 다른 행동들(different behaviors)을 보여 주기 때문에 설계하기가 어렵다. 또한 한 시스템에서의 구성 요소들 간에 상호작용을 함으로 전체 시스템의 상태를 나타낸다면 전체 상태를 각 구성요소의 상태들의 곱으로 나타내지므로 복잡도는 지수의 곱으로 나타내 질 것이다. 따라서 단순한 테스트로는 시스템 특성의 정확성을 검증하기 위해 모든 상태를 확인할 수 없다. 본 논문에서는 concurrent system의 고전전 문제인 dining philosophers problem을 상징적 기호 표현방법을 이용해서 그 시스템의 정확성을 검증하고 또한 상태 공간 폭발 문제-상태 공간의 크기가 시스템에서 구성요소의 복잡도와 수가 동시에 지수적으로 증가하는 문제-를 어떻게 해결할 수 있는 가를 제시한다.

• Journal of the Korean Data and Information Science Society
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• v.22 no.2
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• pp.245-253
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• 2011

Powers of rank transformed statistic for testing main effects and interaction effects for $2{\times}2$ factorial design in randomized complete block design are very superior to powers of parametric statistic without regard to the block size, composition method of effects and the type of population distributions such as exponential, double exponential, normal and uniform. $2{\times}2$ factorial design in RCBD increases error effects and decreases powers of parametric statistic which results in conservativeness. However powers of rank transformed statistic maintain relative preference. In general powers of rank transformed statistic show relative preference over those of parametric statistic with small block size and big effect size.

• Journal of the Korean Data and Information Science Society
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• v.25 no.6
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• pp.1195-1205
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• 2014

Compared with single design, powers of rank transformed statistic for testing main and interaction effects for $2{\times}2$ factorial in $4{\times}4$ latin square design are rapidly increased as effect size and replication size are increased. In general powers of rank transformed statistic are superior without regard to the diversified effect composition and the type of error distributions as nontesting factors are few and effect size are small. Powers of rank transformed statistic show much higher level than those of parametric statistic in exponential and double exponential distributions. Further powers of rank transformed statistic are very similar with those of parametric statistic in normal and uniform distributions.

• International Commerce and Information Review
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• v.16 no.3
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• pp.3-23
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• 2014

This study focused on causes of use reluctant intention because closed SNS was more active than open SNS was despite tremendous growth of SNS to have negative influence upon not only SNS contents suppliers but also marketing business using SNS. The survey were conducted a total of 205 participants with adult over colleague student, 197 copies that excluded questionnaire with unfaithful answer were used in the analysis, and we used path analysis of structural equation modeling. The results of modified path model showed that interactivity was influenced by value, and then affecting "trust ${\rightarrow}$ satisfaction ${\rightarrow}$ using reluctant intention" path and "satisfaction ${\rightarrow}$ using reluctant intention" path. These result reflected that interactivity have a double-edged sword and value is very important standard to make a positive of negative role of interactivity. These results suggested that interactivity was found to have influence upon not only behavioral willingness that took actions depending upon either improvisation or situation but also behavioral intention path that thought and took actions in reasonable way. The interactivity had double-edged sword to help develop SNS and to produce negative results.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.2
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• pp.301-306
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• 2013

The Ratio of APT jeonse to purchase price was still rising. The interaction of APT Purchase and Jeonse price indices by region analysis in order to analyze this phenomenon, and results were summarized as follows. First, because the regional APT purchase and jeonse prices appears the rise and fall differently by region, regional polarization was deepening. Second, the recently real estate market was analyzed the province's booming real estate and the downturn of the metropolitan area. So, the ratio of APT jeonse to purchase price was continued to rise. Finally, the Ratio of APT jeonse to purchase price changing rate is (+) increased if the APT purchase price changing rate is larger then the APT purchase price changing rate and smaller then is (-) decreased.

• 한국가시화정보학회:학술대회논문집
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• 2007.11a
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• pp.149-154
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• 2007

This study examines the effect of acoustic excitation using forced coaxial air on the flame characteristics of turbulent hydrogen nonpremixed flames. A resonance frequency was selected to acoustically excite the coaxial air jet due to its ability to effectively amplify the acoustic amplitude and reduce flame length and NOx emissions. Acoustic excitation causes the flame length to decrease by 15 % and consequently, a 25 % reduction in EINOx is achieved, compared to a flame without acoustic excitation. Moreover, acoustic excitation induces periodical fluctuation of the coaxial air velocity, thus resulting in slight fluctuation of the fuel velocity. From phase-lock PIV and OH PLIF measurement, the local flow properties at the flame surface were investigated under acoustic forcing. During flame-vortex interaction in the near field region, the entrainment velocity and the flame surface area increased locally near the vortex. This increase in flame surface area and entrainment velocity is believed to be a crucial factor in reducing flame length and NOx emission in coaxial jet flames with acoustic excitation. Local flame extinction occurred frequently when subjected to an excessive strain rate, indicating that intense mass transfer of fuel and air occurs radially inward at the flame surface.