• Journal of Korean Society for Geospatial Information Science
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• v.23 no.1
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• pp.31-37
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• 2015

The recent long-term economic recession and business depression are constantly increasing the occurence of the five major crimes(murder, robbery, rape, theft, violence). When looking into the previously-analyzed characteristics of how the five major crimes are committed, this study understands that the crimes mostly occur in these crime-ridden areas of poor public order and security and, in order to decrease the crime rates of the crime-prone areas, any relevant fields have been emphasizing the application of CPTED. In the light of that, referring to CPTED surveillance factors and the current crime rate data, the study presented ways to help the relevant fields draw up a crime-prone area grade map. In particular, the security center among monitoring elements was visualized by dividing it into point patrol and directed patrol and by dividing it into 3 steps monitoring levels with CCTV and street lights. In addition, we checked the crime rate by zoning through crime statistics occurred in the research areas and established a crime status map. We estimated the weight through AHP analysis on the built monitoring elements and the zoning of the occurred areas, as a result of making a map vulnerable to crime by monitoring steps by overlapping each element, we were able to confirm that 60% of theft, 52% of violence and 33% of rape in the 1st grade area were reduced compared to the 1st step in monitoring Step 3.

• Journal of the Korea Society of Computer and Information
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• v.17 no.4
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• pp.163-172
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• 2012

Modern society, various great strength crimes are producing. After all crimes happen, it is most important that prevent crime beforehand than that cope. So, many research studied to prevent various crime. However, existing method of studies are to analyze and prevent by society and psychological factors. Therefore we wishes to achieve research to forecast crime by time using Markov chain method. We embody modelling for crime occurrence estimate by crime type time using crime occurrence number of item data that is collected about 5 great strength offender strength, murder, rape, moderation, violence. And examined propriety of crime occurrence estimate modelling by time that propose in treatise that compare crime occurrence type crime occurrence estimate price and actuality occurrence value. Our proposed crime occurrence estimate techniques studied to apply maximum value by critcal value about great strength crime such as strength, murder, rape etc. actually, and heighten crime occurrence estimate probability by using way to apply mean value about remainder crime in this paper. So, we wish to more study about wide crime case and as the crime occurrence estimate rate and actuality value by time are different in crime type hereafter applied examples investigating.

• Journal of The Korean Society of Integrative Medicine
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• v.5 no.4
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• pp.67-76
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• 2017

Purpose : The purpose of this study was to understand the correlations between life stress, sleep quality, and mental health in nursing college students. Method : This study was conducted on 315 nursing college students in B City between April 1stand30th, 2017. The collected data were processed using SPSS 22.0 and were analyzed using means, standard deviations, t-tests, an ANOVA, Scheffe's test, and Pearson's correlation coefficient. Results : Nursing college students showed means of $2.36{\pm}0.54$ points in life stress, $1.03{\pm}0.41$ points in sleep quality, and $2.95{\pm}0.57$ points in mental health. The analysis of correlations between life stress, sleep quality, and mental health in nursing college students showed a statistically significant positive correlation between life stress and sleep quality (r = .432, p < .001). In addition, statistically significant negative correlations were found between life stress and mental health (r = -.589, p < .001) as well as between mental health and sleep quality (r = -.301, p < .001). Discussion : Replication studies with larger numbers of subjects are required. Based on the present study, systematic studies on factors affecting life stress, sleep quality, and mental health are also necessary. Moreover, programs should be developed to reduce life stress as well as improve sleep quality and mental health.

• Research in Community and Public Health Nursing
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• v.18 no.2
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• pp.331-339
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• 2007

Purpose: This study was conducted to identify correlations among internet games addiction (IGA), self-esteem and physical health in middle school students. Methods: A total of 428 middle school students were selected through simple random sampling. Data were collected from the $15^{th}$ to $30^{th}$ of March, 2006. Data were analyzed using SPSS/PC program by frequency, $\chi^2$-test, t-test, ANOVA, Duncan test, Pearson's correlation coefficient, and Stepwise Multiple Regression. Results: 1. According to the results of analyzing the degree of IGA, the addicted group was 1.9% 2. Analysis of IGA according to the general characteristics showed that there were statistically significant differences in on-line friend, using time and major leisure. 3. Analysis of physical health according to the general characteristics showed that there were statistically significant differences in on-line friend and off-line friend. 4. IGA was in a significantly negative correlation with self-esteem. 5. In the results of regression, using time was identified as a factor influencing the IGA. Conclusion: Considering the results above, we need to develop IGA prevention programs to enhance physical health and self-esteem and to control using time.

• Convergence Security Journal
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• v.12 no.6
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• pp.107-113
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• 2012

This study examined relationship between the major five crimes(murder, robbery, rape, theft and violence) and elements of meteorological change(weather, temperature, precipitation, wind velocity and humidity). Elements of meteoro logical change corresponding to the date recorded by a meteorological office and the number of occurrences from January $1^{st}$ 2010 to October $19^{th}$ 2012 collected from major portal sites were used for this study. Based on this data, SPSS 12.0 was utilized to analyze relationship between crimes and elements of meteorological change, allowing us to find out relationship between crimes and elements of meteorological change. This analysis finding is sure to pave the way for research of this field.

• Proceedings of the Korea Contents Association Conference
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• 2018.05a
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• pp.355-356
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• 2018

본 연구의 목적은 대학생의 스마트폰 중독과 자기생활관리의 관계에서 긍정심리자본과 정신건강의 매개효과를 확인하는 것이다. 대학생 266명을 대상으로 스마트폰 중독, 긍정심리자본, 정신건강, 자기생활관리 척도를 실시하고 분석한 결과는 다음과 같다. 첫째, 관련 요인들의 상관관계를 분석한 결과 스마트폰 중독은 자기생활관리와 긍정심리자본에서 유의한 부적상관을 나타냈으며 정신건강간의 유의한 정적상관을 나타냈다. 둘째, 대학생의 스마트폰 중독과 자기생활관리의 경로분석결과 긍정심리자본($0.69^{**}$)이 매개 효과를 나타냈다. 셋째, 매개변인인 긍정심리자본과 정신건강 하위요인들과 자기생활관리 간 회귀분석을 실시한 결과 긍정심리자본에서는 낙관성($3.40^{**}$)과 탄력성($6.95^{**}$)이 자기생활관리에 유의한 영향을 미쳤으며, 정신건강에서는 우울($-2.01^*$)과 충동성($-3.53^{**}$)이 유의한 영향을 미치는 것으로 나타났다. 본 연구 결과를 토대로 대학생의 자기생활관리를 위한 교육적 시사점과 후속연구에 대한 제언을 논의하였다.

• The Korean Journal of Applied Statistics
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• v.23 no.1
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• pp.113-121
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• 2010

Mixture is that DNA profiles of samples contain material from more than one contributor, especially common in rape cases. In this situation, first, the method based on enumerating a complete set of possible genotype that may have generated the mixed DNA profile have been studied for interpreting DNA mixtures. More recently, the methods utilizing peak area information to calculate likelihood ratios have been suggested. This study is concerned with the analysis and interpretation of mixed forensic stains using quantitative peak area information and the method of forensic inference for extension of material from more than or equal to three contributors. Finally, the numerical example will be outlined.

• Korean Journal of Human Ecology
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• v.22 no.4
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• pp.539-558
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• 2013

The purpose of this study is to examine relationships among university students' self-differentiation, self-esteem and mental health. The subjects were 400 students of four universities in Busan and Gyungnam area. A questionnaire survey was done. The results of this study are as follows : First, the levels of university students' self-differentiation and self-esteem were high. Second, university students' self-differentiation and self-esteem were correlated positively. Third, the levels of university students' depression and anxiety were relatively low. It showed that the subjects' mental health of this study were not bad. Fourth, depression had no significant difference by gender. However, female students had higher anxiety than male students had. Fifth, university students' self-differentiation and self-esteem had negative correlation with depression and anxiety, and self-esteem played a role of mediating variable between self-differentiation and mental health. Sixth, family projection, family regression and self integration of self-differentiation had indirect influence upon the students' mental health through self-esteem, while cognitive-emotional function had direct influence upon mental health and had indirect influence upon mental health through self-esteem as well. In this study, university students' self-differentiation and self-esteem were found to be important variables having influence upon mental health, and self-differentiation had indirect influence upon mental health through self-esteem. Counselling intervention strategies should be established considering self-differentiation and self-esteem of the students who complained about their maladjusted emotion and human relation problems at schools. Also, programs enhancing self-differentiation and self-esteem of university students should be developed and the execution of these programs will be needed to help the university students who experienced mental health problems such as depression, anxiety and so on.

• Journal of the Korean Data and Information Science Society
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• v.27 no.6
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• pp.1511-1523
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• 2016

The increasing trend of the five violent crimes (murder, robbery, rape, violence, theft) in Korea is not independent of social and economic factors. Several social science research have discussed about this issue but most of them do not properly reflect the nature of the time-series data. Based on several time series models, we studied about the endogenous factors (time, seasonal and cycle factors) and exogenous factors (economical, social change and crime control factors) on violent crime occur in Korea. Autocorrelation were also taken into account. Through this study, we want to help to make preventive policy by explaining the cause of violent crime and predicting the future incidence of it.

• Transactions of the Korean Society of Mechanical Engineers
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• v.14 no.1
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• pp.96-102
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• 1990

Cracks found in pressure vessels have been reported to be mostly semi-elliptic surface cracks. The fatigue crack growth behaviour of the surface cracks on pressure vessel materials, SPV 50Q and API 5A-K55, was studied with the consideration of the crack opening character. To determine the crack opening loads for the surface cracks, the displacement/strain were measured at three positions; the center and the side of the surface crack, the back face of the specimen using CMOD gauge and strain gauges. The experimental results showed that the crack opening load levels measured at the side of the surface crack were generally a little higher than those measured at the back face. As for the crack growth rates at the different parts of the surface crack, the experiments also showed that, if .DELTA.K$_{eff}$ is used, the exponent n of the Paris' law obtained were the same for the rear and the side parts of the surface cracks.