• 한국산학기술학회논문지
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• 제18권4호
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• pp.685-693
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• 2017

본 연구는 인구와 주요시설들이 집중되어 있는 도시지역에 국지성 폭우가 발생했을 경우, 용도지역별로 침수 피해에 대한 위험도를 등급화하여 효율적으로 대처하기 위해 연구하였다. 창원시를 대상으로 토지이용의 제도적 기반이 되는 용도지역과 재산 가치를 추정할 수 있는 공시지가, 그리고 건축물의 피해 면적과 밀도를 추정하기 위한 용적률 등에 대한 자료를 확보하여 Fuzzy모형을 통해 동일한 침수면적이 발생했을 경우 사회 경제적 피해에 대한 민감도를 파악함으로써 용도지역별로 피해 정도를 위험등급화를 하였다. 분석결과 창원시의 5개 구(마산합포구, 마산회원구, 성산구, 의창구, 진해구)에서 용도지역별 침수피해 순위는 상업지역, 주거지역, 공업지역, 녹지지역 순으로 동일하게 나타났으며, 이는 상업지역이 공시지가와 용적률이 가장 높아 침수 피해에 대한 재산 피해가 높기 때문으로 판단된다. 하지만 마산회원구와 성산구의 세부적인 분석결과에서 앞선 결과와는 상이한 것을 볼 수 있었는데, 지역의 환경 및 특성에 따라 용도지역별로도 침수위험등급이 달라질 수 있음을 보여주고 있다. 본 연구에서 도출된 결과물은 향후 도시계획과 연계하여 토지이용계획 수립 시 도시 침수피해를 줄이기 위한 기초 자료로 활용될 수 있을 뿐 아니라, 도시 지역 개발 계획 수립 시 침수 피해 정도를 사전에 예측할 수 있다. 또한, 기후변화와 도시화라는 이슈와 함께 폭우 발생 시 도시 내수침수 저감에 기여하기 위한 대책으로 토지이용 부문이라는 새로운 대책을 제시했다는 점에서 큰 의의가 있다고 할 수 있다.

• 지역사회간호학회지
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• 제28권4호
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• pp.410-420
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• 2017

Purpose: This study was to identify factors explaining health empowerment of older adults with high-risk of cardio-cerebrovascular diseases. Methods: Using a structured questionnaire, data were collected from 148 older adults residing in two areas who have one or more of the following diseases; hypertension, diabetes mellitus, hyperlipidemia, and atherosclerosis. Data were analyzed using descriptive statistics, independent t-test, analysis of variance (ANOVA), Pearson correlation analysis, and hierarchical multiple regression. Results: Health empowerment had a positive correlation with health literacy and social support. Perceived health status and social activity participation showed significant contribution in explaining health empowerment. Conclusion: This study showed that enhancing perceived health status and social activity participation are vital in an effort to improve health empowerment of the population. Main findings of this study can contribute to developing health empowerment interventions to improve health behavior practices of the older adults.

• 수산해양기술연구
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• 제59권4호
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• pp.354-361
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• 2023

In this study, the AHP (analytic hierarchy process) technique was used to analyze the risk of expected risk factors and fishing possibilities during gillnet fishing within the floating offshore wind farms (floating OWF). For this purpose, the risks that may occur during gillnet fishing within the floating offshore wind farms were defined as collisions, entanglements, and snags. In addition, the risk factors that cause these risks were classified into three upper risk factors and ten sub risk factors, and the three alternatives to gillnet fishing available within the floating OWF were classified and a hierarchy was established. Lastly, a survey was conducted targeting fisheries and marine experts and the response results were analyzed. As a result of the analysis, among the top risk factors, the risk was the greatest when laying fishing gear. The risk of the sub factors for each upper risk was found to be the highest at the berthing (mooring), the final hauling of fishing net, and the laying of the bottom layer net. Based on the alternatives, the average of the integrated risk rankings showed that allowing full navigation/fisheries had the highest risk. As a result of the final ranking analysis of the integrated risk, the overall ranking of allowing navigation/fisheries in areas where bottom layer nets were laid was ranked the first when moving vessels within the floating OWF was analyzed as the lowest integrated risk ranking of the 30th at the ban on navigation/fisheries. Through this, navigation was analyzed to be possible while it was analyzed that the possibility of gillnet fishing within the floating OWF was not high.

• Parasites, Hosts and Diseases
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• 제59권3호
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• pp.251-256
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• 2021

We find out the clusters with high toxoplasmosis risk to discuss the geographical pattern in Gyodong-myeon and Samsan-myeon of Ganghwa-gun, Cheorwon-gun, and Goseong-gun, Korea. Seroepidemiological data of toxoplasmosis surveyed using rapid diagnostic tests for the residents in the areas in 2019 were analyzed to detect clusters of the infection. The cluster was investigated using the SaTScan program which is based on Kulldorff's scan statistic. The clusters were found with P-values in each region analyzed in the program, and the risk and patient incidence of specific areas can be examined by the values such as relative risk and log likelihood ratio. Jiseok-ri and Insa-ri were found to be a cluster in Gyodong-myeon and Seokmo-ri was the cluster in Samsan-myeon. Yangji-ri and Igil-ri were found to be a cluster in Cheorwon-gun and Madal-ri and Baebong-ri were the cluster in Goseong-gun. This findings can be used to monitor and prevent toxoplasmosis infections occurring in vulnerable areas.

• 한국인공지능학회지
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• 제10권1호
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• pp.21-25
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• 2022

Korea has relatively less crime than other countries. However, the crime rate is steadily increasing. Many people think the crime rate is decreasing, but the crime arrest rate has increased. The goal is to check the relationship between CCTV and the crime rate as a way to lower the crime rate, and to identify the correlation between areas without CCTV and areas without CCTV. If you see a crime that can happen at any time, I think you should use a random forest algorithm. We also plan to use machine learning random forest algorithms to reduce the risk of overfitting, reduce the required training time, and verify high-level accuracy. The goal is to identify the relationship between CCTV and crime occurrence by creating a crime prevention algorithm using machine learning random forest techniques. Assuming that no crime occurs without CCTV, it compares the crime rate between the areas where the most crimes occur and the areas where there are no crimes, and predicts areas where there are many crimes. The impact of CCTV on crime prevention and arrest can be interpreted as a comprehensive effect in part, and the purpose isto identify areas and frequency of frequent crimes by comparing the time and time without CCTV.

• KDI Journal of Economic Policy
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• 제43권3호
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• pp.1-32
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• 2021

With CB data in South Korea, this study examines whether the credit risk of borrowers changes when the regulation on bank mortgage supply is relaxed. We analyze the effect of deregulation on LTV and DTI limits in the Seoul-metropolitan area in August 2014 with a difference-in-difference approach. We find that the probability of delinquency is lower in the Seoul metropolitan area after the deregulation than in other urban areas. The effect is noticeable among low-income and low-credit borrowers. We also find that borrowers change their debt structure to reduce the interest costs utilizing their improved access to bank mortgages. The findings suggest the necessity to consider the burden of the high interest costs of unsecured loans for debtors with low incomes and low credit ratings in designing housing finance regulations.

• International Journal of Contents
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• 제8권2호
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• pp.89-96
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• 2012

Scientific analysis of crime hot spots is essential in preventing and/or suppressing crime. However, results could be different depending on the analytic methods, which highlights the importance of choosing adequate tools. The purpose of this study was to introduce two advanced techniques for detecting crime hot spots, GAM and Local Moran's I, hoping for more police agencies to adopt better techniques.GAM controls for the number of population in study regions, but local Moran's I does not. That is, GAM detects high crime rate areas, whereas local Moran's I identifies high crime volume areas. For GAM, physical disorder was used as a proxy measure for population at risk based on the logic of the broken windows theory. Different regions were identified as hot spots. Although GAM is generally regarded as a more advanced method in that it controls for population, it's usage is limited to only point data. Local Moran's I is adequate for zonal data, but suffers from the unavoidable MAUP(Modifiable Areal Unit Problem).

• 정보교육학회논문지
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• 제18권2호
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• pp.203-212
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• 2014

최근 증대한 성인 및 청소년의 스마트폰 중독 문제에 대해 본 연구에서는 기존에 다소 소홀히 다루어졌던 초등 고학년생들의 스마트폰 중독 실태를 다양한 인구통계학적 요소에 따라 조사하였다. 설문 조사는 경기도 소재 학교의 4~6학년생 1570명을 대상으로 실시되었고, 조사 결과, 첫째, 스마트폰 평균보유율은 약 66%이었다. 둘째, 약 1%의 학생들이 고위험 사용자군에 속하였고, 잠재위험군 5.7%, 일반 사용자군은 93.3%이었다. 셋째, 인구통계학적 요소에서 학년, 학업성적 각각과 중독 사용자군의 상관이 유의하였다. 즉, 부진한 성적일수록, 또는 학년이 오를수록 중독 가능성이 매우 높았다. 넷째, 잠재위험군과 일반군 학생들 모두 대도시, 남학생, 6학년, 맞벌이 부모의 경우에 더욱 중독 점수가 높았다. 반대로 가정경제와 학업성적 측면에서는 잠재위험군은 풍족한 가정과 우수한 성적인 경우 중독성이 더욱 높았으나, 일반군은 빈곤 기정, 부진한 성적인 경우에 더욱 높은 점수를 나타내었다.

• 대한간호학회지
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• 제28권1호
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• pp.193-200
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• 1998

The purpose of this study was to identify how students majoring in nursing perceive causes of cancers and the effects of diet for preventing cancers. Data for the study were collected by 651 nursing students, who were registered in the second and third year in three technical colleges and third and fourth year in two universities. The Research instruments included items on general characteristics of subjects, items about the degree of perception of the frequency of cancer onset and items on the perception of mortality. risk factors. preventive diets, knowledge, and high risk factor for cancer in specific body areas. The findings of this study are as follows : 1. Almost all subjects(92.8%) reported that the frequency of cancer onset increases and that it is 93.9% for people over 40. Degree of perception about cancer mortality was low at 33.0%. 2. As far as the perception of risk factors for cancer onset was concerned, smoking, stress, heredity, family history, and alcohol were rated high, over 80.0%. Risk factor in. eluding virus, hormones. pesticides were rated as low. 3. As to the perception of risk factor for body area as associated with diet salted and scorched food were rated at 44.5% for stomach cancer, alcohol, 50.4% for liver cancer, smoking. 72.8% for lung cancer. pregnancy times. 25.3%, and marriage age, 23.0% for uterine cancer, and no delivery experience, 40.1% for breast cancer. 4. The knowledge score for cancer was between 12 and 36, with a mean score of 26.75(SD=4.13). There was a statistically significant difference between experience in raring for cancer patients during clinical practice and knowledge score(t=3.09. p=.002).

• 한국가스학회지
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• 제15권2호
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• pp.33-39
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• 2011

이 논문은 철도를 이용한 폭약류의 운송 시 사고위험을 정량적으로 제시하였다. 사고유형은 역내에서의 사고와 수송 중의 사고로 분류하였다. 그리고 각각의 유형에 따라 열차의 탈선사고와 충돌사고의 빈도를 통해 사고빈도의 초기 값을 제시하였으며 ETA(Event Tree Analysis)를 통하여 사고빈도의 결과를 도출하였다. 피해영향평가는 TNT Equivalent method과 Probit analysis method를 이용하였다. 리스크 평가 결과 인구밀도가 높은 지역을 통과하는 폭약류의 철도운송은 사고발생시 높은 인명피해를 야기 시킬 수 있는 것으로 나타났다. 특히 유류와 복합된 사고의 경우 대형 폭발사고로 이어질 리스크를 가진 것으로 예측되었다. 결론적으로 폭약류의 위험물 수송 시 인구밀도가 높아 피해영향이 높은 지역의 경유를 줄이고 또한 리스크를 경감시킬 수 있는 대책을 강구해 위험요소와 사고빈도를 줄 일 필요성이 있을 것이다.