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이철민 ( Chulmin Lee ),염동문 ( Dongmoon Yeum ) 사단법인 아시아문화학술원 2021 인문사회 21 Vol.12 No.3
본 연구의 목적은 노인의 자살생각에 영향을 미치는 주요 요인을 위험요인과 보호요인으로 구분하여 자살생각에 미치는 영향을 통합적으로 분석함으로써 효과적이고 체계적인 자살예방 프로그램에 필요한 기초자료 제공하는 것이다. 본 연구에서는 한국복지패널조사 14차 자료를 활용하여 65세 이상 노인 4,484명을 대상으로 자살생각에 미치는 영향을 분석하였다. 연구분석은 SPSS 24.0을 사용하였다. 인구사회학적요인(성별, 연령, 배우자유무, 건강상태, 독거유무, In경상소득)을 통제변수로, 위험요인(우울, 음주, 흡연, 만성질환)과 보호요인(자아존중감, 삶의만족도)을 독립변수로 투입하여 이분형 로지스틱회귀분석을 실시하였다. 연구결과를 요약하면, 위험요인 중에서 우울 수준이 높을수록, 보호요인 중에서 자아존중감과 삶의 만족도 수준이 낮을수록 노인은 자살생각을 하지 않는 집단에 비해 자살생각을 할 집단에 속할 가능성이 높은 것으로 분석되었다. 이러한 연구 결과를 바탕으로 노인의 자살생각을 예방할 수 있는 실천적 제안을 하였다. The purpose of this study is to provide the necessary basic data for an effective and systematic suicide prevention program by comprehensively analyzing the impact on suicide thoughts by classifying the main factors affecting suicide thoughts in older adults into risk and protection factors. In this study, the effect on suicidal thoughts was analyzed on 4,484 elderly people aged 65 and over using the 14th data of the Korea Welfare Panel Survey. For research analysis, SPSS 24.0 was applied. Socio-demographic factors (sex, age, whether to have a spouse, health condition, whether to live together, In ordinary income) were used as control variables, and risk factors(depression, drinking, smoking, chronic diseases) and protective factors (self-esteem, life satisfaction) inputted as independent variables and was conducted a binary logistic regression analysis. To summarize the result of the study, it was analyzed the higher the the level of depression among risk factors and the lower the level of self-esteem and life satisfaction among protection factors, the elderly are likely to belong the group who does suicidal thougths than does not suicidad thoughts. Based on these results, this study did practical suggestions to prevent their suicidal thoughts.
무기력계수를 이용한 아연도금강판의 3겹 점용접 피로수명
이철민(Chulmin Lee),유효선(Hyosun Yu),강희용(Heeyong Kang),양성모(Sungmo Yang) 한국자동차공학회 2005 한국자동차공학회 지부 학술대회 논문집 Vol.- No.-
The welding quality of spot weldment is very important because it dominates strength, stiffness, safety and ete of vehicles. Therefore, quality control and fatigue life evaluation of spot weldment are necessary process. This paper presented a method for determining the fatigue life of 3-lap spot weldment of galvanize steel sheet. To examine the validity of the proposed fatigue life equation and S-N curve, the fatigue life is estimated using the lethargy coefficient as the total defect estimation coefficient from the tensile-shear test. Then this result of calculation was compared to the result of fatigue test. This method can save the time and the cost in processing of predicting the life cycle of a structure.
이철민(Chulmin Lee),유효선(Hyosun Yu),강희용(Heeyong Kang),양성모(Sungmo Yang) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_3
The welding quality of spot weldment is very important because it dominates strength. stiffness. safety and etc of vehicles. Therefore. quality control and fatigue life evaluation of spot weldment are necessary process. This paper presented a method for determining the fatigue life of 3-lap spot weldment of galvanize steel and high strength steel sheet. To examine the validity of the proposed fatigue life equation and S-N curve, the fatigue life is estimated using the lethargy coefficient as the total defect estimation coefficient from the tensile-shear test. Then this result of calculation was compared to the result of fatigue test. This method can save the time and the cost in processing of predicting the life cycle of a structure.
이철민(Chulmin Lee),송준혁(Joonhyuk Song),유효선(Hyosun Yu),강희용(Heeyong Kang),양성모(Sungmo Yang) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The welding quality of spot weldment is very important because it dominates strength, stiffness, safety and etc of vehicles. Therefore, quality control and fatigue life evaluation of spot weldment are necessary process. This paper presented a method for determining the fatigue life of multi-lap spot weldment of high strength steel sheet. The fatigue life is estimated using the lethargy coefficient as the total defect estimation coefficient from the quasi static tensile-shear test. Then this result of calculation was compared to the result of fatigue test. This method can save the time and the cost in processing of predicting the life cycle of a structure.