급성 심근허혈에 의해 윤발된 승모판 폐쇄부전의 기전에 관한 실험적 연구

강덕현,송현,송재관,김현숙,이재환,임희영,이재원,박성욱,박승정,송명근 대한순환기학회 1999 Korean Circulation Journal Vol.29 No.8

제주지역 강우의 분석 및 분석 데이타의 신뢰도 조사

강창희,김원형,정덕상,변경희 濟州大學校 基礎科學硏究所 2000 基礎科學硏究 Vol.13 No.1

The rainwater samples were collected from the 1100 Site of Mt. Halla and Cheju city during the period of March in 1997 to August in 1998, and the major soluble ions were analyzed and their analytical confidence has been investigated. The volume weighted mean values of pH in 1100 Site and Cheju city were 487 and 4.82, respectively, and those of electrical conductivity were 16.0 and 23.3 μS/cm. The mean concentrations of ions in 1100 Site were in the order of Cl^(-)>Na^(+)>SO₄^(2-)>NH₄^(+)>H^(+)>NO₃^(-)>Mg^(2+)>Ca^(2+)>K^(2+)>HCOO^(-)>CH₃COO^(-)>F^(-)>HCO₃^(-)>CH₃SO₃^(-), and those in Cheju city were the same order except that NO₃^(-) was higher than H^(+). The comparison between several correlation coefficients has been applied for the investigation of analytical confidence, such as equivalent concentrations sum, the measured and calculated conductivity, and the acid fraction. The correlation coefficients between cation and anion equivalent concentrations sum were 0.981 and 0.960, respectively, in 1100 Site and Cheju city, and those of the calculated and measured electric conductivity in two regions were 0.989 and 0.993, respectively, so that the analytical data has been shown to be in good reliabilities. Also, the correlation coefficients between the acid fractions from the equivalent concentrations of ions and those from the measured pH and electric conductivity were 0.966 and 0.936, respectively, in two areas, so that these results also have shown a quite satisfactory analytical confidence.

한국인의 이상혈색소에 관한 연구 : β-Chain anomaly 2예

강득용,조만희,변광의,김창세 순천향대학교 1983 논문집 Vol.6 No.4

We have screened 3321 cases of donor bloods, which were taken from the Clinical Pathology Department Soonchunhyang University Hospital, over the period of Sept. 1982 to June 1983, for the detection of abnormal hemoglobins by agar gel electrophoresis. We were found two cases of abnormal hemoglobins, β-chain anomaly, in Korean and the incidence was 0.06 per cent. These hemoglobin anomalies were normal in the view of clinical symptoms and hematological findings. We have carried out on the structural characterization of the β-chain anomalies but on the limitation of samples forwarding studies would be expected.

Ni-Zn 페라이트의 透磁率과 磁氣抵抗에 미치는 添加物의 影響

강재덕,최희태,서강수,신용진 明知大學校 産業技術硏究所 1990 産業技術硏究所論文集 Vol.9 No.-

This paper is studied on the effects of additive of permeability and magnetic reluctance of Ni-Zn ferrites. Ni-Zn ferrites was composed of 20mo1% NiO, 30mo1% ZnO, 50mo1% Fe₂O₃, and 0.0025n1o1%, 0.005mo1%, 0.01 mol% ??, Bi₂O₃, ?? were used as minor additive Sintering was carried oui at 1100℃. As results from the experiments, the initial permeability was proportional inversely to magnetic reluctance. It was observed that the better magnetic properties of initial permeability anti magnetic reluctance could be achieved by the additive ??.

산모혈과 제대혈에서 연농도에 관한 조사

이덕희,문종국,배강우,이용환,김진하,박강원 大韓産業醫學會 1996 대한직업환경의학회지 Vol.8 No.3

This study was conducted to evaluate the blood lead levels in 141 pregnant women who were not occupationally exposed to lead and their umbilical cord, and to identify some differences in blood lead levels by living area. The subjects were all delivered at St. Benedict Hospital in Pusan and the blood lead levels were measured by graphite furance atomic absorption spectrophotometer. The summarized results were as follows. 1. The geometric mean lead levels in maternal and cord blood were 8.0±1.8μg/dl, 5.0±0.6μg/dl respectively. 2. Lead levels in maternal(8.7±1.7μg/dl) and cord blood(5.4μ±0.7μg/dl) of industrial area(n=24) were higher than residential area(n=124) which were 7.9±1.7μg/dl and 5.0±0.6μg/dl respectively(p<0.05). 3. Maternal blood lead concentration was significantly correlated to cord blood lead concentration(r=0.6090, p<0.001), but other variables(maternal age, paternal smoking, birth weight, etc) were not correlated.

일 대학병원에서 양극성장에 환자의 흡연 특성 : 정신분열병 환자와의 비교 연구

이강수,천덕희,김지혜,김현진,조현상 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.4

Objectives : This study aimed to investigate smoking characteristics and nicotine dependence severity in bipolar disorder Comparing those of schizophrenia. Methods : 70 bipolar and 123 schizophrenic patients, diagnosed using DSM-IV-TR criteria and treated at the Severance Mental Health Hospital, were interviewed regarding socio-demographic variables, smoking characteristics and Fagerstrom Test for Nicotine Dependence (FTND), designed to evaluate the intensity of smoking. Results : The rate of current smoking was 60.0% in the bipolar group, and 50.4% in the schizophrenia group. No significant difference was seen in terms of the rate of current smoking between the groups. Rates of having ever smoked also did not differ between bipolar (73%) and schizophrenic patients (65%). Daily cigarette consumption of bipolar patients (15.9 cigarettes/day) was significantly lower than that of schizophrenic patients (21.2 cigarettes/day), but FTND score didn't appear to differ between bipolar and schizophrenic patients. Bipolar females showed higher rate of current smoking (44%) than schizophrenic females (17%). Among bipolar patients, antipsychotics dose was not correlated with daily cigarette consumption and FTND total score. Age of disease onset didn't appear to differ between smokers and non-smokers in bipolar group. Conclusion : Although daily consumption was significantly lower in the bipolar group, the rate of smoking and smoking severity in bipolar disorder were as high as in schizophrenia. This fact suggests that the bipolar disorder might be related to the nicotinic acetylcholine system dysfunction as like schizophrenia.

교량 탐사용 로봇 개발

김덕후,김효곤,조국,강민성,박상덕,손웅희 한국공작기계학회 2008 한국공작기계학회 추계학술대회논문집 Vol.2008 No.-

The purpose of maintaining of bridges was to secure of them and expend its life. They wereneeded to have a regular safety check. But, most parts of a bridge were not able to access easily for people so it was difficult to maintain. To improve it, the flight mechanism and mobile mechanism were combined to examine with moving when they were attaching to bridges up and down. The flight mechanism is a co-axial-rotor-helicopter shape that cut the body down and can be done hovering. The mobile mechanism was shaped to move every direction with holding the position of a robot. These robot platforms showed possibilities to use them not only for observation and patrol but they could be used for a new usage with transformation of flying robots. This paper was focused on location maintaining when a robot was examined a bridge. The flight mechanism would only have thrust and adhesive force, the mobile mechanism would be used for moving. Therefore, defining the mechanistic model of the mobile mechanism has proved the validity of the model through simulations and experiments.

혈액형 부적합 신장이식의 현재와 과제

이신아,강덕희 이화여자대학교 의과학연구소 2015 EMJ (Ewha medical journal) Vol.38 No.1

Kidney transplantation is the best treatment for end-stage renal disease patients. However, the relative shortage of organs for transplantation has led to ABO-incompatible kidney transplantation as an accepted method to expand the pool of kidney donors. Recent advances in immunosuppression and antibody removal methods have made ABO-incompatible kidney transplantation more feasible, and have increased the opportunities for patients to receive kidney transplantation, as well as for special patients with ABO-compatible donor. Indeed, the outcome of ABO-incompatible kidney transplantation has shown remarkable developments and is now comparable to that of ABO-compatible kidney transplantation during last decade. However, there are still some uncertain issues to be addressed in ABO-incompatible kidney transplantation. In this article, we reviewed the current status and protocol of ABOincompatible kidney transplantation and listed the concerns to be addressed in near future.

황사에 기인한 제주지역 대기 에어로졸 금속 성분의 농도 변화 및 특성 조사

김원형,강창희,양경희,한성빈,정덕상 濟州大學校 基礎科學硏究所 2003 基礎科學硏究 Vol.16 No.1

1998년부터 2001년까지 제주도 고산에서 대기 에어로졸을 채취, 분석하여 봄철 황사기간 동안의 금속성분 농도와 특성을 조사하였다. 분석기간동안의 평균 농도는 S>Na>Ca>Fe>K>Mg>Zn>Pb>Ti>Mn>V>Ba>Sr>Cu>Ni>Cr>Mo>Cd>Co의 순이었으며, 특히 Al, Ca, Fe, Fe, K, Ti, Ba, Sr의 농도가 황사기간에 각각 10.5, 9.9, 10.3, 5.6, 5.1, 6.5, 5.6배 증가하였다. 대부분의 토양성분들, 특히 Al, Fe, Ca 금속성분은 높은 상관성을 보였으며, 농축인자에 의한 조사결과 Ca, Fe, Cd, Ti, K, Mg 금속 성분들은 주로 토양으로부터 기인하는 반면 Pb, Mn, Ni, Cu, V, Cr, Co, Zn, Na 성분들은 다른 요인에 기인하였다. 요인분석 결과 고산지역의 에어로졸은 토양의 영향을 주로 받고 있으며 그 다음으로는 인위적 및 해염의 영향을 받는 것으로 조사되었다. 풍향별 분석으로부터 대부분의 에어로졸 금속 성분들이 주로 북서계열 풍향의 영향을 받고 있으며 이는 한반도뿐만 아니라 중국 대륙으로부터의 장거리 유입 가능성을 시사하고 있다. The atmospheric aerosols have been collected at Gosan in Jeju during 1998 to 2001, and their metal components have been analyzed in order to investigate the characteristics and concentration variations during the Yellow Sand periods. The mean concentration of metal components including sulfur were in the order of S>Na>Ca>Fe>K>Mg>Zn>Pb>Ti>Mn>V>Ba>Sr>Cu>Ni>Cr>Mo>Cd>Co. The soil originate Al, Ca, Fe, K were increased as 10.5, 9.9, 10.3, 5.6 times, respectively during yellows Sand periods, and Ti, Ba, Sr were also increased as 5.1, 6.5, 5.6 times, respectively. Most of the soil components, in particular, Al, Fe, Ca, showed high correlation coefficients. The enrichment factors show Ca, Fe, Cd, Ti, K, Mg in aerosols are originated mostly from the soil, whereas the metals such as Pb, Mn, Ni, Cu, V, Cr, Co, Zn, and Na are from other possible sources rater than soil. The factor analysis shows the metals of the aerosols at Gosan are originated primarily due to the soil, followed by authropogenic and somehow sea-salt factors. The wind direction study showed most of the aerosol metal components increased with the northwest wind, indicating the possible transportation of air pollutants from China as well as the Korean peninsula.

관동맥연축의 진단을 위한 Ergonovine Echocardiography의 안전성 및 임상적 유용성

송재관,박성욱,강덕현,조구영,나득영,이내희,이철환,홍명기,김재중,박승정 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.8