• Korean Journal of Psychosomatic Medicine
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• v.27 no.1
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• pp.42-49
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• 2019

Objectives : Living donor liver transplantation (LDLT) is a life-saving therapy for patients with terminal liver disease. Many studies have focused on recipients rather than donors. The aim of this study was to assess the emotional status and personality characteristics of LDLT donors. Methods : We evaluated 218 subjects (126 male, 92 female) who visited Daegu Catholic University Medical Center from August 2012 to July 2018. A retrospective review of their preoperative psychological evaluation was done. We investigated epidemiological data and the Minnesota Multiphasic Personality Inventory-2 questionnaire. Subanalysis was done depending on whether subjects actually underwent surgery, relationship with the recipient, and their gender. Results : Mean age of subjects was $32.19{\pm}10.91years$. 187 subjects received LDLT surgery (actual donors) while 31 subjects didn't (potential donors). Donor-recipient relationship included husband-wife, parent-children, brother-sister etc. Subjects had statistical significance on validity scale L, F, K and all clinical scales compared to the control group. Potential donors had significant difference in F(b), F(p), K, S, Pa, AGGR, PSYC, DISC and NEGE scales compared to actual donors. F, D and NEGE scales were found to be predictive for actual donation. Subanalysis on donor-recipient relationship and gender also showed significant difference in certain scales. Conclusions : Under-reporting of psychological problems should be considered when evaluating living-liver donors. Information about the donor's overall psychosocial background, mental status and donation process should also be acquired.

• Korean Journal of School Psychology
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• v.17 no.2
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• pp.165-180
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• 2020

As a tiered system of supports, School-Wide Positive Behavior Support (SWPBS) is an evidence-based practice in the educational system of Korea. An important aspect of SWPBS is the ongoing progress monitoring and evaluation of implementation fidelity. This study aimed to develop and validate the Korean Tier 3 School-Wide Positive Behavior Support Implementation Fidelity Checklist (KT3-FC). The preliminary KT3-FC consisted of a 37-item, 6-factor checklist. In the first phase of the study, 10 experts reported that the range of content validity of the KT3-FC was adequate. In the second phase of the study, 185 teachers (52 men and 133 women) who implemented SWPBS completed the KT3-FC, Individualized Supports Questionnaire, School Climate Questionnaire, School Discipline Practice Scale, and PBS Effectiveness Scale. An exploratory factor analysis resulted in a 5-factor structure, with 20 items, instead of 37 items, consisting of: (a) progress monitoring and evaluation of the individualized supports, (b) provision of supports by aligning and integrating mental health and SWPBS, (c) crisis management planning, (d) problem behavior assessment, and (e) establishment of individualized support team. The internal consistency of the KT3-FC was good (full scale α = .950, sub-factor α = .888 ~ .954). In addition, the KT3-FC showed good convergent validity, having statistically significant correlations with the Individualized Support Questionnaire, School Climate Questionnaire, School Discipline Practice Scale, and the PBS Effectiveness Scale. Finally, the confirmatory factor analysis showed that the 5-factor model of the KT3-FC had some good model fits, indicating that the newly developed fidelity measure could be a reliable and valid tool to assess the implementation of Tier 3 supports in Korean schools. Accordingly, the KT3-FC could contribute to implement SWPBS as an evidence-based behavioral intervention for Korean students.

• Science of Emotion and Sensibility
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• v.2 no.2
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• pp.1-10
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• 1999

본 연구의 목적은 중추신경계 반응과 자율신경계 반응을 이용하여 향이 인간에 미치는 영향을 평가하고자 하는 것이다. 본 연구는 20-26세의 남자 10명, 여자 10명으로 구성된 피험자를 대상으로 이루어졌고, 100% Rose oil bulgrian, Lemon oil misitano, Jasmine abs., Lavender oil france (KIMEX.co.ltd) 등 4가지의 향을 사용하여 실험을 수행하였다. 전두엽 (Fz)과 두정엽 (Cz)에서 EEG를 기록하여 대역별 relative power spectrum 값을 구하고 $\alpha$대역에 대한 $\beta$대역의 비($\beta$/$\alpha$)를 통하여 향에 대한 감성 평가를 시도하였다. 또한 자율신경계 반응은 심전도, 피부온도, 피부저항의 생리신호를 측정하였다. 주관적 평가는 향의 세부적인 이미지를 나타내는 후각 감성 형용사를 이용하여, 양극의 7점 척도 25문항, 단극의 5점 척도 40문항, 그리고 각 향의 전반적인 선호도를 묻는 양극의 7점 척도 2문항으로 구성하여 자극제시 전, 후에 각각 실시하였다. 전체적으로 피험자들은 Lemon을 가장 쾌하고 연하다는 평가를, Rose를 가장 불쾌하며 진하다고 평가하였다. $\beta$/$\alpha$의 비는 쾌하고 연할수록 감소하였고 불쾌하고 진할수록 증가하였다. 또한 심박 변화율과 피부온도는 쾌하고 연할수록 감소하였고, 불쾌할수록 반대 결과를 나타내었다. 결론적으로 쾌하고 연한 향과 불쾌하고 진한 향 사이에 $\beta$/$\alpha$의 비와 자율 신경계 반응의 차이를 관찰할 수 있었다.

• Proceedings of the KIEE Conference
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• 2008.10b
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• pp.407-408
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• 2008

한의학 관점의 진맥위치는 요골동맥상의 촌/관/척 세부위로 나누어진다. 거의 말초에 해당하는 근접한 부위를 세 부분으로 나누어 진맥하여 병을 진단하는데 촌/관/척 위치에 대한 해부학적 혈류역학적 근거는 부족한 상황이다. 본 논문에서는 초음파(VOLUSION730 PRO, GE Medical 미국)를 이용하여 맥진 위치의 혈관굵기, 혈관깊이 그리고 혈류 속도를 측정하고 분석해 봄으로써 맥진 위치의 구조석 차이를 이해해 보고자 한다. 또한 Body Mass Index(BMI)에 따라 혈관의 특성이 달라지는지 파악하고 한의맥진과의 상관관계를 분석해 보았다. 심혈관 질환이 없는 남자 피험자를 각각 BMI 정상인 그룹, 저체중 그룹, 과체중 그룹으로 나누어 5명씩 측정하였다. 좌, 우 손목의 맥진위치(촌, 곽, 척)에서 혈관깊이, 혈관굵기, 혈류속도를 측정하였으며 맥진기(3-D Mac, 대요메디, 한국)를 이용하여 맥파를 측정하였다. 그 결과, 비만도에 따라 혈관의 특징이 다르게 나타남을 알 수 있었으며 한의 맥의 종류 중 부맥과 치맥에 특징이 비만도와 관련 있음을 알 수 있었나 이는 피험자의 혈관 특성과 BMI 정보가 진단에 중요한 지표이며 자동 맥진 알고리즘 개발 시 반드시 고려해야 하는 사항임을 알 수 있다.

• Journal of KIISE:Software and Applications
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• v.35 no.8
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• pp.493-500
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• 2008

This paper proposes an electronic colon cleansing method using a patient CT profile for a virtual colonoscopy. The proposed method extracts the colon using cubic seeded region growing, and removes tagged materials adjacent to the colon. Residuals produced by a partial volume effect at the boundary of air-tagged material are deleted, and the removed soft tissue pixels due to a partial volume effect at the boundary of tagged material-soft tissue are recovered using a patient CT profile. The proposed method was applied to 16 virtual colonoscopy patient data sets, and produced promising results by a subjective evaluation of a radiologist and by a quantitative evaluation of a computer-aided diagnosis system.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.10
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• pp.2572-2576
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• 2009

The wafer prober is used in mass production process of semiconductor chips. The chuck in wafer prober must have a uniform temperature distribution when the chuck is heated or cooled. The temperature distribution of prober chuck is measured by using a thermocouple when the chuck is cooled. The temperature distribution is also calculated by using a CFD program, FLUENT. The measured temperature and calculated temperature show similar distributions. A modified coolant circuit distribution for the improving temperature uniformity is suggested based on the numerical analysis results.

• Proceedings of the Korea Water Resources Association Conference
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• 2011.05a
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• pp.395-400
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• 2011

강변저류지는 국내에서 천변저류지라는 이름으로 2000년 초반부터 관련 연구가 시작되었으며, 기존의 하천연안 저지대 및 홍수터를 활용하여 제방의 일부 구간에 취수부를 설치, 하천의 계획홍수를 초가하거나 일정수위 이상의 홍수가 발생할 때 초과하는 홍수량을 저류하여 하류의 첨두홍수를 저감시키는 소규모 수공구조물이다. 이러한 강변저류지는 off-line 형식으로 2차원적인 홍수량 분담을 통해 홍수량을 조절하여, 홍수조절효과가 확실하고 그 효과가 즉시 나타나는 특징이 있다. 또한 한 대상유역 내에 다수의 대상지역이 존재하게 된다. 하지만 이들 후 보지 전체에 강변저류지를 설치하는 것은 다수의 제약조건에 의해 불가능하며 대상유역의 어느 후보지에 강변저류지를 설치한다는 문제를 해결하기위해 기존에 수행되었던 연구들은 각각의 장단점이 있으며 이들 연구의 가장 큰 문제는 의사결정을 위해 사용되는 변수의 통합과정에서 발생될 수 있는 오류가 있다는 것이다. 본 연구에서는 다수의 기준과 변수에 의해 결정되어진 강변저류지의 설치 우선순위들을 다차원척도법(Multi-Dimensional Scaling)를 이용하여 최종적인 하나의 순위를 도출하는 것으로 기존에 수행되었던 연구결과의 장점을 포함하며, 보다 많은 변수를 고려할 수 있는 방안을 제시하고자 한다.

• Journal of Korea Society of Industrial Information Systems
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• v.18 no.6
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• pp.103-112
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• 2013

While the competition among many portal sites has been very serious in the Internet, very little research has been conducted on the perceptions of the users visiting those sites. To investigate how differently the Internet users perceive each of the portal sites, we attempted to analyze the similarities of five popular portal sites (Daum, Naver, Google, Nate, and MSN). By measuring the conceptual distances among the portal sites using Multi-Dimensional Scaling, this study was intended to understand the positions of the sites relative to those of other sites. The results of this study is expected to contribute to our understanding of competitive contexts among the portal sites.

• The Journal of Korean Association of Computer Education
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• v.15 no.2
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• pp.47-55
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• 2012

We discovered the fact that the most important factor for judging adults' internet addiction in the K-scale method which was developed by Korea National Information Society Agency (NIA), has composed of 4 categories including 20 items, is tolerance and preoccupation factor from the experiments by using data mining techniques. In this research, we propose a new internet addiction diagnostic method based on the degree of tolerance considering users' non-duty internet activities. From some questionnaire participants, their feedbacks for the K-scale and the proposed diagnostic method were collected, and then we confirmed that the proposed user-centered diagnostic method is effective to find undiscovered addicts due to individuals's intention in the K-scale.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.8 no.1
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• pp.28-36
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• 2015

The purpose of this paper is to examine the influence of a short-term temple stay experience on daily life-stress reduction and continuance. The result of this study is as follows. Average daily stress index of male and female after temple stay was remarkably low more than before. Stress index was relatively highly in the following order: just before temple stay, three months, a month, a week after temple stay. By age stress reduction, index of 60s' male was highest while one of 30s' and 40s' female was rather high.