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최은주,유수진,권정곤 부산대학교 환경문제연구소 1994 環境硏究報 Vol.12 No.-
This study was managed to develope the existing numerical calculation model of near shore current and wave fields where wave and current coexist around shallow water region, and analyse their problems. Until now, nearshore current model that include longshore current and on-off shore current had shown wave characteristic based on regular wave theory. In this study, however, nearshore current characteristic was changed by directional dispersion. So the effect of directional dispersion of multidirectional irregular wave was examined numerically by the basic study of nearshore current calculation due to multidirectional wave that was driving force of pollutant material at shallow water region.
四七湯이 拘束스트레스 흰쥐의 血淸 catecholamine 含量 變化에 미치는 影響
崔銀洙,李仁仙 동의대학교 한의학연구소 1999 동의한의연구 Vol.3 No.-
Background and Objective : Sachiltang(SCT) was known as anti-stress medicine. The aim of this study is to investigate of plasma catecholamine and the effect of SCT on rats in immobilization stress. Material and Method : Sprague-Dawley female rats were divided into 3 groups. The normal group(NG) was healthy 8 rats. The control(CG) and experimental group(EG) were subdivided 3 groups(CG1, CG2, CG3, EG1, EG2, EG3), were conditioned 12 hours a day immobilization stress for 5, 10, 11 days. And then, the plasma were obtained. Results : Plasma epinephrine(EP), norepinephrine(NE) and dopamine of EG were decreased as compared with CG (EP & NE ; p<0.005, dopamine ; p<0.05) Conclusion : SCT was useful in anti-stress effect.
주개 이온을 첨가한 강유전체 Bi₄Ti₃O_12(BIT) 박막의 특성
최은경,박문흠,김두회,구영건,김상수 昌原大學校 基礎科學硏究所 2001 基礎科學硏究所論文集 Vol.13 No.-
Bismuth layered structure ferroelectric thin films, BIT and donor (V, Nb and W) doped BIT, were prepared on the Pt/Ti/SiO2/Si substrates by sol-gel method. BIT film was characterized by strong c-axis prepared orientation. In the case of donor doped BIT thin films, the degree of c-axis prepared orientation decreased systematically V-BIT→W-BIT→Nb-BIT and Nb-BIT film was shown random orientation. Surface morphologies of BIT and V-BIT films had a plate-like and Nb-BIT and W-BIT had a mixture of plate-like and rod-like. In the results of ferroelectric hysteresis loops, the remanent polarization (2Pr) of random-oriented Nb-BIT capacitor was 26 μC/cm2, and this value was over two times higher than that of 12 μC/cm2 for BIT capacitor. The polarization fatigue up to 4.5×1010 read/write switching cycles of W-BIT capacitor was shown superior to the other capacitors. The polarization of the W-BIT capacitor decreased only 10% of the initial value after 4.5×1010 switching cycles.
p-형 Si(100) 기판 위에 성장시킨 Bi_(3.25)La_(0.75)Ti₃O_(12) (BLT) 박막의 전기적 특성
최은경,박문흠,김현주,하태곤,강민주,김상수 昌原大學校 基礎科學硏究所 2003 基礎科學硏究所論文集 Vol.15 No.-
Bi₃zsLa(0.75)Ti₃0_(12) (BLT) thin film have been grown on p-type Si(l00) substrates by a sol-gel spin coating process. The structure and surface morphology of the film were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEMI. Furthermore, the electrical properties were examined by capacitance-voltage ( C-V) characteristics by using a LF Impedance Analyzer(HP 4192A). XRD measurement show layered perovskite structure with a single phase in BLT thin film annealed at 700C for 30 min in oxygen. The measured grain size of BLT on Si is about 0.04 - 0.1 pn. From the cross-sectional SEM image, BLT film thickness is measured to be 0.4 pm. The C-V characteristic hysteresis curves show that the NIFS (metal-fexroelectric-semiconductor) structure has memory effect. The memory window decreases, with increasing frequency at MFS structure. And it is found that the memory window increases as the applied voltage to the ferroelectric capacitor is increased. These phenomena may be due to polarization reversals of the BLT ferroelectric film and because of the charge injection from Si substrate into the ferroelectric thin film. The results obtained indicate that the present BLT films are suitable for making ferroelectric field effect transistor(FeFET) memory.
일개 대학병원 직원에서 인플루엔자 백신접종 후 이상반응
최새로운,김수미,이진수,김은실,정문현 대한감염학회 2004 감염과 화학요법 Vol.36 No.5
Influenza vaccination on health care workers in a university hospital was conducted using inactivated split vaccines from two pharmaceutical companies (A, B), December 2003. Among 1,880 health care workers, 1,404 (74.7%) were vaccinated and 714 (50.8%) responded to the questionnaires about adverse reactions. Pain and redness at the injection site, febrile sensation, and restricted occupational activities were reported by 316 (44.3%), 141 (19.7%), 169 (23.6%), and 62 (8.7%) participants, respectively. There was no serious adverse events. The incidence of adverse reactions was similar to the previous reports. No statistical difference was detected according to the vaccines company.
류은석,김윤숙,전섭,김종수,최승도,선우재근,배동한,양승화 순천향의학연구소 2005 Journal of Soonchunhyang Medical Science Vol.11 No.1
Fibrothecoma are mesenchymal tumors deriving from the ovarian stroma and consisting of theca-like elements and fibrous tissues. The reported incidence is between 0.4 and 8.0% of all ovarian tumors and this side variability can be attributed to the difficulty in differentiation fibrothecoma from ovarian fibroma or hyperplastic stroma nodules. We experienced a rare case of ovarian fibrothecoma in woman at 38 weeks gestation with previous repeat cesarean section diagnosed after tertiary cesarean delivery and bilateral tubal ligation with a brief review of literature.
비만을 동반한 위암 환자에서 두 병을 같이 수술 치료한 경험(증례)
최경현,윤기영,문형환,신연명,서경원,안수미,송윤미,석정희,정경연,이은하 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.3
Obesity is growing problem in Korea. We had a case of bariatric surgery during gastric cancer operation. Patient was 29 year old Korean lady with early gastric cancer located in the lesser curvature side of the middle 1/3 of the stomach. Her body weight was 89 kg, height 163 cm, and thus body mass index was 33.5 kg/m2. Preoperative blood pressure was 130/90 mmHg, hemoglobin 12.9 g/dL, total lymphocyte count 3,280/mL, serum albumin 4.3 g/dL, CEA 1.1 ng/mL, CA 19-9 9.1 ng/mL, and alpha fetoprotein 2 ng/mL. Another associated disease was right thyroid follicular neoplasm. The chest X-ray was normal. After IM injection of 2,500 units of heparin 30 minutes before the induction of general anesthesia, she received curative subtotal gastrectomy and Roux en Y gastrojejunostomy when a malabsorption loop of 120 cm jejunum was incorporated between the Treitz ligament and the end to side jejuno-jejunostmy site at May 29th 2006. Her postoperative course was uneventful except a minor wound seroma and the elevations of serum amylase(up to 4 folds) and lipase(up to 2 folds). She lost her body weight 9 kg in 5th, 21 kg in 7th, and 27 kg in 10th postoperative months to became 61.5 kg. On follow up exams in July 2008, she gained 4 kg to overcome her weakness and fatigue. From the above result, the incorporation of a malabsorption loop during reconstruction phase of gastric cancer operation was a good option for obese gastric cancer patients especially in cases of early gastric cancer.
A rare case of extensive papillary muscle calcification in senile cardiac calcification syndrome
김은진;송봉근;강민호;손형래;홍수민;박동원;허승혜;김계연;최석구 인제대학교 2011 仁濟醫學 Vol.32 No.-
광범위 유두근 석회화는 흔하지 앉으며, 원인과 임상적 중요성에 관한 문헌만 드물게 찾아볼 수 있다. 반면에 작은 석회 침착은 노인에서 흔하며 심장 첨부에 주로 나타난다. 유두근 석회화는 관상동맥질환, 확장성 심근병증, 승모관 질환, 고칼슘혈증, 그리고 말기신부전에서 인산칼슘의 중가와 연관성이 있다. 저자는 심장초옴파와 MDCT를 통해 진단된 전외측 유두근의 광범위 석회화의 드문 사례가 있어 보고한다.
김경은,김필송,민주연,박수경,신서인,이지은,정해인,조호정,최정원,최정인 이화여자대학교 간호과학대학 2013 이화간호학회지 Vol.- No.47
Purpose: The purpose of this study was to investigate the relationships between the degree of smart phone addiction among adolescents and their depression and anxiety levels. Method: In this study, 379 high school students were selected using the convenient sampling method. The instruments used for this study were smart phone addiction measure, the CES-D (Center for Epidemiological Studies-Depression Scale), and the STAI (State-Trait Anxiety Inventory). Data were analyzed using the SPSS 20.0 program with descriptive statistics, t-test, ANOVA with Scheffe test, and Pearson’s correlation coefficient. Result: The mean score for smart phone addiction was 40.45±17.27, depression was 36.56±9.58, state anxiety was 44.00±9.61, and trait anxiety was 45.70±9.75. There were significant differences between the degree of smart phone addiction and the following variables: gender (t=-4.953, p<.001), hours of smart phone use per day (F=12.259, p<.001), types of frequently used features (F=3.485, p=.008), and satisfaction level for smart phone (F=5.18, p<.001). There were statistically significant relationships (p<.001) among degree of smart phone addiction, depression level, and state and trait anxiety levels. Conclusion: The results of this study suggested that there was a significant relationship between smart phone addiction and mental health, specifically, depression and anxiety among adolescents. Further research is needed to develop nursing strategies to provide care for adolescents who frequently utilize smart phones.