• 대한전기학회:학술대회논문집
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• 대한전기학회 1987년도 전기.전자공학 학술대회 논문집(II)
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• pp.1573-1576
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• 1987

A 4-bit parallel-series A/D converter has been designed using a new matrix circuit and breadboarded with transister array(TPQ2483). The simple matrix circuit is substituted for D/A converter and sebtracter-multiplier. The system has been simulated with SPICE. This converter is capable of operating at clock rate of 20MHz.

• Genomics & Informatics
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• 제9권2호
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• pp.45-51
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• 2011

How personality forms and whether personality genes exist are long-studied questions. Various concepts and theories have been presented for centuries. Personality is a complex trait and is developed through the interaction of genes and the environment. Twin and family studies have found that there are critical genetic and environmental components in the inheritance of personality traits, and modern advances in genetics are making it possible to identify specific variants for personality traits. Although genes that were found in studies on personality have not provided replicable association between genetic and personality variability, more and more genetic variants associated with personality traits are being discovered. Here, we present the current state of the art on genetic research in the personality field and finally list several of the recently published research highlights. First, we briefly describe the commonly used self-reported measures that define personality traits. Then, we summarize the characteristics of the candidate genes for personality traits and investigate gene variants that have been suggested to be associated with personality traits.

• Child Health Nursing Research
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• 제10권2호
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• pp.205-216
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• 2004

Purpose: The purpose was to investigate the factors influencing alcohol consuming behavior of the female university students to provide the basic data for a nursing intervention program to improve health and prohibit of alcohol consuming behavior. Method: The subjects were 134 female university students, studying at K university and K educational university in Chungnam province from April 1 to 20, 2002. The instruments were the alcohol consuming behavior scale, that is drinking intensity score, and alcohol problem developed by Shin(1998), refusal self-efficacy scale by Aas et. al.(1995), alcohol expectancy by Goldman at. al.(1989), TPQ scale by Cloninger(1991), depression scale modified by Shin(1977) using Zung(1965)' tool, family cohesion scale by Olson at. al.(1983). The data were analyzed using descriptive statistics, Pearson correlation coefficient, canonical correlation and stepwise multiple regression. Result: The most powerful predictor of alcohol consuming behavior was influence of friends-drinking(21.0％). A combination of economic status(8.0％), and personality of novelty seeking(3.0％), accounted for 32.0％ of the variance in alcohol consuming behavior. Conclusion: I recommended that economic status, influence of friends drinking frequently, and personality of novelty seeking were contained of the developing nursing intervention program for decreasing the alcohol consuming behavior in female university students.

• 대한기계학회논문집A
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• 제33권8호
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• pp.745-752
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• 2009

In robust design, the mean and variance of design performance are frequently used to measure the design performance and its robustness under uncertainties. In this paper, we present the Gauss-type quadrature formula as a rigorous method for mean and variance estimation involving arbitrary input distributions and further extend its use to robust design optimization. One dimensional Gauss-type quadrature formula are constructed from the input probability distributions and utilized in the construction of multidimensional quadrature formula such as the tensor product quadrature (TPQ) formula and the univariate dimension reduction (UDR) method. To improve the efficiency of using it for robust design optimization, a semi-analytic design sensitivity analysis with respect to the statistical moments is proposed. The proposed approach is applied to a simple bench mark problems and robust topology optimization of structures considering various types of uncertainty.

• 지역사회간호학회지
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• 제14권1호
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• pp.55-65
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• 2003

Purpose: The purpose was to investigate the factors influencing the alcohol consumption behavior of adolescents to provide basic data for a nursing intervention program to improve health management and prohibit alcohol consumption. Method: The subjects were 306 university students, living in K city in Chungnam province from April 1 to 20th, 2002. The instruments used were the alcohol consumption behavior scale, that is the drinking intensity score, and developed by Shin(1998)'s scale of drinking problem, refusal self-efficacy scale by Aas et. al.(1995), alcohol expectancy by Goldman et. al. (1989), TPQ scale by Cloninger(1991), depression scale by Zung(1974), family cohesion scale by Olson et. al. (1983). The data were analyzed using descriptive statistics, Pearson correlation coefficient, t-test, ANOVA, and stepwise multiple regression by using SPSS & SAS program. Results: The multiple regression analysis revealed that the most powerful predictor of alcohol consumption behavior was the influence of friends (drinking everyday) (17.0%). A combination of alcohol expectancy (8.0%), influence of friends (4.0%), father's influence (2.0%), depression(2.0%), refusal self-efficacy (1.0%), personality of harm avoidance(1.0%), and monthly pocket money (2.0%) accounted for 38.6% of the variance in alcohol consumption behavior. Conclusion: From the results, we recommend to use the database that develops nursing intervention program for decreasing the alcohol consumption behavior including the influencing factors in university students.

• 지역사회간호학회지
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• 제15권3호
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• pp.471-482
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• 2004

Purpose: This study intended to identify personality factors and related problematic behaviors of adolescents who drink alcohol in order to provide basic data for developing nursing programs. Methods: The data were collected from October to December 2002 from 1.080 high school students in Seoul. The Revised Cloninger's Tri-dimensional Personality Questionnaire (TPQ) was used to measure their personalities. The alcohol expectancy was measured using the tool revised by Cho (1999) and stress levels were measure using a stress tool revised Cho (1998). The data were analyzed with SPSS Windows using Chi square test. independent t-test. and logistic regression analysis. Results: 1. The percentage of fathers who drank was 79.8%. mothers. 54.3%. and friends. 54.3%. The alcohol expectancy averaged 6.36 while the stress levels were 132.79. 2. It was found that there are significant differences (p<.001) in problematic drinking behaviors according to the following variables: second year high school students among all grade variables, more monthly pocket money for the amount of money variables, the group of students who smoked in the case of the variable related to smoking, spending more time using the Internet for the Internet use variable, and having friends who drink 65.6% for the friend variable. The alcohol expectancy scale of those students who showed problematic drinking behaviors was higher than that of those who did not. There are four family-related stress subscales, and there was a significant difference among them (p<.05). Among the personal characteristics, the group who displayed problematic drinking behaviors seeks new experiences and reward dependence more than the group who did not exhibit those behaviors, and there were significant differences between the two groups (p<.001). 3. When the socio-demographic and drinking-related factors were controlled, the tendency of seeking new experiences increased the risk of problematic behaviors 1.07 times (p<.05). Compared to the non smoking group, the smoking group was found to have a 5.06 time (p<.001) greater risk of displaying problematic drinking behaviors. In comparison with the non drinking group, the drinking group was also found to have a 5.31 time (p<.001) greater risk of exhibiting problematic drinking behaviors. The group with high alcohol expectancy scores was significantly different from the group with the no alcohol expectancy, showing a 1.26 time (p<.00l) greater risk of problematic drinking behaviors. Conclusions: Based on these results, the problematic drinking behaviors were connected with alcohol expectancies, friends and personality types. Therefore, we should develop an alcoholic prevention program for adolescence considering the above results.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제20권12호
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• pp.652-657
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• 2014

출발지와 도착지, 사용자가 방문해야 하는 POI(Point of Interest)유형들, 이 유형들 중 전체 혹은 부분에 대한 방문순서들이 주어질 때, 출발지에서 여러 방문순서를 만족시키는 순서대로 각 POI 유형별로 적어도 하나의 POI를 방문한 후 목적지에 도착하는 경로를 순차적 경로라 한다. 본 논문에선 이 경로 중 근사 최단 경로(Approximate Shortest Path)를 찾는다. 기존의 두 가지 기법은 방문한 POI(또는 출발지)와 방문해야 할 유형의 POI들과의 근접성 만을 보거나 후보군 선정 시 방문순서 및 네트워크를 고려하지 않고 출발지와 목적지를 이은 직선과 가까운 POI들로 경로를 찾는 문제를 갖고 있었다. 본 논문에서는 네트워크 탐색을 이용하여 출발지와 목적지 간 네트워크 경로에 근접한 POI를 후보군으로 선정하여 경로를 탐색하고, 이 경로 중 방문한 POI유형이 많은 경로에 적응적 우선순위를 주어 향상된 근사 최단 경로를 구하는 기법을 제안한다.

• 정신신체의학
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• 제14권1호
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• pp.39-46
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• 2006

연구목적 : 본 연구는 월경전 불쾌기분장애와 기질 특성과의 관련성을 알아봄으로써 월경전 불쾌기분장애의 병태생리 및 관련된 성격 경향을 이해하며 치료 응용의 가능성을 제시해 보고자 하였다. 방법 : DSM-IV 진단기준에 의해 월경전 불쾌기분장애로 진단된 28명을 대상으로 한국어판 TPQ, 축약형 월경전기평가서 등을 작성케 한 후, 이들 사이의 상관관계를 구하였다. 결과 : 기질의 4가지 차원에 해당하는 점수를 독립 변인으로 하고, 축약형 월경전기평가서 점수를 종속 변인으로 하여 표준 중다회귀분석을 시행하였을 때 월경전 불쾌기분장애 증상은 Cloninger가 제시한 성격의 기질을 구성하는 4가지 요인 중 손해 회피(HA) 요인과 보상 의존(RD) 요인에 대하여 유의하였으며, 특히 손해 회피(HA) 요인에 의해 가장 많이 설명될 수 있는 것으로 나타났다. 결론: 월경전 불쾌기분장애의 증상은 높은 손해 회피(HA) 요인과 낮은 보상 의존(RD) 요인에 의해 잘 설명되었다. 월경전기증상 중 특히 정동 증상이 손해 회피(HA) 요인과 상관관계를 갖고 있는데, 이는 월경전 불쾌기분장애가 기질의 특성에 영향을 받음을 의미한다. 이는 향후 월경전 불쾌기분장애의 병태생리의 이해에 도움이 될 것으로 생각한다.