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      • KCI등재

        이종 금속의 아크 스폿 용접성 및 접합부 형상 예측에 관한 연구

        김기순,장경복,강성수 대한용접접합학회 2000 대한용접·접합학회지 Vol.18 No.2

        In this study, the lap welding between austenitic stainless steel and carbon steel was carried out using arc spot welding process and weldability of welded specimens was estimated. From the tensile-shear strength test, micro Vickers harness test, and microstructure observation, specimen of $psi6.5mm$(hole of upper plate) showed the best results in terms of tensile-shear strength and nugget shape. And there was an unmix zone in fusion boundary between the carbon steel base metal and bulk weld metal. This zone had very width with the hard microstructure. The shape of weld nugget in arc spot welding of dissimilar metal melds was predicted by searching thermal history of a weld joint through a three-dimensional finite element model. From the numerical analysis, predicted the shape of weld nugget showed good agreement with the experiment.

      • Ethanol이 식염성고혈압(食鹽性高血壓) 유발과정(誘發過程)에 미치는 영향(影響)

        김기순,이병희,신홍기,Kim, Kee-Soon,Lee, Pyung-Hee,Shin, Hong-Kee 대한생리학회 1973 대한생리학회지 Vol.7 No.2

        In 30 rats divided into salt, ethanol and salt plus ethanol groups, the effect of ethanol on the course of hypertension induction with the salt ingestion was studied. The results obtained from the present study are as follows. 1) In salt group mean arterial blood pressure elevated to plateau (about 140 mmHg) in two weeks and the increased blood pressure was well maintained throughout entire experimental period. 2) By four weeks after ethanol ingestion, mean arterial blood pressure of ethanol group was slightly decreased followed thereafter by slow restoration to control value. And it was believed that decline of blood pressure observed in this case probably was not resulted from cardiac depression. 3) As mean arterial pressure in salt plus ethanol group remained rather low compared with that of salt group, it was suggested that ethanol may have a dose reduction effect in the course of hypertension induction by excessive salt ingestion. It was, however, not possible from the result of present study to decide that low blood Pressure in this group was resulted whether from enhanced sodium excretion activity of ethanol or from effect on blood pressure of ethanol itself.

      • SCOPUSKCI등재

        한국(韓國) 농촌지역주민(農村地域住民)의 사망률(死亡率) 및 사망원인(死亡原因)에 대(對)한 연구(硏究) -경기도(京畿道) 강화군(江華郡)을 중심(中心)으로-

        김기순,이병목,Kim, Ki-Soon,Lee, Byung-Mok 대한예방의학회 1977 Journal of Preventive Medicine and Public Health Vol.10 No.1

        To use basic data for health planning and evaluation of Kangwha community health project of Yonsei University, a study on death rates and causes of death were investigated in two townships (Naega and Sunwon Myuns) in Kangwha County from April 1, 1975 to March 31, 1977 All death was identified and reported by family health workers who are living in each village and 2 trained public health nurses confirmed the death. The causes of death were investigated by 2 public physicians. Total number of deaths for 2 years was 230 and the followings are brief summary of the study. 1. Age-adjusted crude death rates of study area were 8.69 per 1,000 population in 1975 and 7.18 per 1,000 population in 1976. Age-adjusted crude death rates for male were 9.18 in 1975 and 6.38 in 1976 and for female were 8.33 and 7.80 per 1,000 population 2. Age specific death rate curves by year and sex showed 'U' shapes. 3. Infant and neonatal death rates were 30.08 and 22.56 per 1,000 live births in 1975, and the rates in 1976 were 18.18 and 13.64. 4. The most common cause of death was cerebrovascular disease and average cause specific death rate for the disease was 215.5 per 100,000 population. 5. Four leading causes of death were non-infectious origin; cerebrovascular disease, malignant neoplasms, senility and suicide. Pulmonary tubeculosis and pneumonia occupied 5th and 9th causes of death. 6. Stomach cancer and hepatoma occupied 61.3% of total death due to malignant neoplasms. 7. Most frequent cause of neonatal death was birth injury. Two deaths due to tetanus were found in 1975, but no death due to this disease was found in 1976. 8. About half of deceased received care from physician before death.

      • KCI등재

        일부 대학 신입생들의 흡연관련요인

        김기순,김양옥,박종,최진수 대한보건협회 1994 대한보건연구 Vol.20 No.1

        대학 신입생의 흡연결정요인을 파악하기 위해 광주직할시 소재 2개 종합대학교에 입학한 신입생 중 1993년 1월 13일부터 1월 29일 까지 양 대학 학교보건진료소에서 실시한 건강진단에 참여한 남학생 4,437명(참여율 95.7%)을 대상으로 본 연구를 실시하였다. 자료 수집은 구조화된 설문지를 이용하였으며, 설문지는 세계보건기구 (WHO)에서 제시한 흡연조사양식(WHO 1982)중 청소년을 대상으로 개발된 양식을 번역하여 사용하였으며 그 분석결과는 다음과 같다. 1. 연구대상자 4,437명중 흡연경험자는 42.2%인 1,872명 이었으며 이중 현재 흡연자는 1,048명으로 전체 연구대상자의 23.6%였다. 2. 현재흡연자 1,048명 중 매일흡연자는 604명(57.6%). 하루 한 갑 미만 흡연자가 909명(86.7%)이었고, 5년 미만 흡연자가 907명(86.5%)이었다. 3. 단일변량 분석에서 흡연과 유의한 관련이 있는 일반적 특성으로는 고교졸업년도, 자신의 종교, 부모의 종교 등이었으며, 전공계열, 거주지는 유의한 관련이 없었다. 4. 단일변량 분석에서 형제와 친구의 흡연여부는 연구대상자 흡연과 유의한 관련이 있었으며 아버지와 어머니의 흡연여부는 유의한 관련이 없었다. 아버지, 어머니, 형제, 친구의 흡연에 대한 태도와 연구대상자의 흡연과는 유의한 관련이 있었다. 5. 연구대상자의 흡연관련지식 및 흡연에 대한 태도가 단일변량 분석에서 흡연과 유의한 관련이 있었다. 6. 다중 로지스틱 회귀분석 결과 규칙적 흡연군에서는 친한 친구의 흡연(OR 8.28, 95% 신뢰구간 4.89-14.00), 흡연에 대한 호의적 태도(OR 5.90, 95% 신뢰구간 3.30-10.54), 본인의 흡연에 대한 친구의 무관심한 태도(OR 4.81, 95% 신뢰구간 2.81-8.25). 그리고 형제중 흡연자가 있는 경우(OR 1.95, 95% 신뢰구간 1.21-3.14) 등이 유의한 관련 요인으로 선정되었다 7. 다중 로지스틱 회귀분석 결과 불규칙 흡연군에서는 흡연에 대한 호의적 태도 (OR 3.59, 95% 신뢰구간2.35-5.50), 친한 친구의 흡연(OR 3.35, 95% 신뢰구간 2.22-5.06), 본인의 흡연에 대한 친구의 무관심한 태도(OR 3.59, 95% 신뢰구간 2.35-5.50). 재수 여부(OR 2.05, 95% 신뢰구간 1.32-3.18) 그리고 흡연관련지식이 부족한 경우(OR 1.57, 95% 신뢰구간 1.05-2.37)등이 유의한 관련 요인으로 선정되었다. In order to find the associated factors with cigarette smoking in the freshmen of college, a survey was made toward 4,437 male students who had just entered a national university and a private university at Kwangju City. Korea, during the period from January 13th, 1993 to January 29th, 1993. Questionnaire on smoking status among adolescents developed by WHO was used to collect data from students who came to school health centers for health check-up. The analyzed results are as follows : 1. Among the 4,437 students, 1,872(42.2%) students reported that they had already experienced smoking, but 1,048 students (23.6% of population) was smoking currently. 2. Among 1,048 present smokers. 604 respondents (57.6%) were smoking every day. 909 students (86.7%) were smoking less than one pack per day and 907 smokers (86.5%) started smoking within the recent 5 years. 3. Through the univariate analysis it was found that the general characteristics of the respondents associated statistically significantly with smoking were the interval between the graduation of high school and the entrance to college, the religion of respondents, and the religion of their parents. The major field of study and the residence were not associated with smoking. 4. The univariate analysis showed that the smoking of the siblings or the friends was associated statistically significantly with smoking of the respondents. The attitude toward smoking of the respondents of their fathers, mothers, siblings and friends was associated with smoking of the respondents statistically significantly. 5. Through the univariate analysis it was found that the health knowledge related with smoking and the favorable attitude toward smoking were associated with smoking of the respondents statistically significantly. 6. Among the regular smokers, by the multivariate logistic regression analysis, smoking was found to be associated with the smoking of their friends (OR 8.28, 95% CI 4.89-14.00), longer interval between the graduation of high school and the entrance to college (OR 6.50, 95% CI 4.03-10.50), the favorable attitude toward smoking (OR 5.90, 95% CI 3.30-10.54), the indifferent attitude toward smoking by the friend (OR 4.81, 95% CI 2.81-8.25) and smoking of the siblings (OR 1.95, 95% CI 1.21-3.14). 7. Among the irregular smokers, by the multivariate logistic regression analysis, smoking was found to be associated with the favorable attitude towards smoking (OR 3.59, 95% CI 2.35-5.50), the smoking of their friends(OR 3.35, 95% CI 2.22-5.06), the indifferent attitude toward smoking by the friend, the longer interval between the graduation of high school and the entrance to college(OR 2.05, 95% CI 1.32-3.18) and poor health knowledge related with smoking (OR 1.59. 95% CI 1.05-2.37).

      • 視床下體의 電氣的 刺戟에 依한 心脈管反應

        金基淳 漢陽大學校 1972 論文集 Vol.6 No.-

        Electrical stimulation was carried out in the hypothalmus of 21 cats. Effects of stimulation parameters on the magnitude and maintenance of pressor and cardiac rate responses were studied. The decay time of these responses was quantitated by calculating the 50% responses decay time as the time in which response progressively decreased to one-half the initial maximum responses. It was found and concluded that the magnitude of these cardiovascular response was affected by stimulation frequency, intensity and pulse duration whereas maintenance of responses was predominantly frequency-dependent. A parametric set of 20/sec-3msec was as effective as 100/sec-1msec for elicitation of pressor and heart rate responses from the hypothalamus while the responses were best maintained with stimulation frequency up to 20/sec.

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