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윤성수 忠北大學校 農業科學硏究所 2003 農業科學硏究 Vol.20 No.-
The objectives of this study is to formulate the probabilistic function for stochastic finite element method that is a method of reliability analysis It consists of the formulation of mean and variance for high order probabilistic function and the differential equation for structural analysis In this study, we considered independent random variables and high order form drove by Taylor Series expansion such that a differential equation of probabilistic variables expand high order expression. As a result of mathematical and numerical study, that the third order mean of probabilistic variable and the second order one are same
윤성욱,김경수 건국대학교 의과학연구소 1998 건국의과학학술지 Vol.8 No.-
Systemic lupus erythematosus(SLE) is an autoimmune disease producing autoantibodies. It is manifestated with a variety of clinical and immumologic features in the multiorgan systems. Pulmonary manifestations of systemic lupus erythematosus were reported by William Osler for the first time in 1904 and have been recognized as clinical entity thereafter. The acute lupus pneumonitis occurs in 1 to 4% of patients with SLE, and slowly responds to therapy. It has been reported that mortality rate of the patients with acute lupus pneumonitis is 50%, if not treated adequtely. We experienced a case of acute lupus pneumonitis accompanied with hyperthyroidism recently and report the case with a review of literature.
윤수홍,이송애,박은주,이주영 효성여자대학교 부설 한국환경위생연구소 1992 환경위생연구 Vol.2 No.1
민간에서 주로 사용되는 약용식물들 중 간독성의 발현 저해 및 간기능 보호 효과가 우수한약물을 찾아 임상적인 약효를 밝혀보고자 하는 실험과정으로 탄소화물의 불완전 연소 및열분해에 의해 생성되는 간장해 물질인 benzo(a)pyrene으로 유도한 rats의 간독성 발현에미치는 강활 수침액의 예방 및 치료 효과를 실험하여 다음과 같은 결과를 얻었다. 1. 강활 수침액의 투여는 B(a)P투여로 현저하게 증가된 혈청 및 간장의 AST, ALT, LDH,ALP 활성의 유의성 있게 감소시켰다. 2. B(a)P투여로 증가한 혈청 total cholesterol 및 phospholipid 함량은 강활 수침액의 투여로감소시킬 수 있었다. 3. 강활의 투여는B(a)P에 의한 간독성 발현을 유의성 있게 감소시켰으며 그 효과는 전처리가후처리에 비해 우수하였다. The present study was undertaken to compare the pharmacologicalactivities of crude Angelica koreana reported with the clinical uses in the orientalmedicine. Crude angelica. used for the treatment of common cold, headache, neu-ralgia and arthralgia. Therefore we tested the effects of Angelica water extract on the liver-protec-live activities in the rats. The results obtained from liver microsomal enzymeassay, measurement of serum and liver alanine' aspartate aminotransferase andlipid accumulation indicated that angelica extract showed significant liver-protec-tive activities against benzo(a)pyrene poisoning.
인슐린의존형 당뇨병환자에서 임신중 병발한 당뇨병성 케톤산증 1예
이성근,신영구,이성규,정윤석,이관우,김현만,김행수 아주대학교 1997 아주의학 Vol.2 No.2
저자등은 인슐린의존형 당뇨병환자에서 임신중에 병발한 당뇨병성 케톤산증을 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. IDDM is an autoimmune disease resulted from beta cell destruction and insulin deficiency, and developed mostly in children and puberty. Ketoaddosis remains one of the most senous complications that can occur in the pregnant diabetic. A 26-year-old woman, gravida 1, para 0, was admitted at 32 weeks gestation because of fever lasted for 6 days. She had been treated with insulin pump during the pregnancy. Blood sugar was well controlled before admission, and the etiology of her ketoacidosis was urinary tract infection and no insulin-intake. DKA was treated with fluids and intravenous insulin. Urinary tract infection was treated with antibiotics, based on culture test. Healthy newbom was later delivered by cesarean section due to fetal distress. We experienced a case of DKA in pregnant woman and report it with a review on literature.
수종의 엔진 구동형 니켈-타이타늄 합금파일의 절삭각에 따른 근관성형 효과에 관한 전자현미경적 연구
전인수,금기연,박성호,윤태철 大韓齒科保存學會 2002 Restorative Dentistry & Endodontics Vol.27 No.6
The purpose of this in vitro study was to compare the effects of root canal debridement following rotary Ni-Ti instruments with positive versus negative rake angle. Seventy sound, extracted human anterior teeth & premolars were randomly divided into four groups. The used rotary instruments were Ni-Ti HERO642(Micro-Mega in France, 20 specimens), Ni-Ti ProFile(Maillefer, Ballaigues, Switzerland, 20 specimen), stainless steel engine reamer(Mani, Matutani Seisakusho Co.,Japan, 20 specimen) and negative control group(10 specimens) was only extirpated with barbed broach(Mani, Matsutani Seisakusho Co., Japan) Group 1 & 2 teeth were prepared to a #40 at the apex followed by 1 mm using crown-down technique. Group 3 teeth were instrumented from a #15 to a #40 in sequential order. After preparation and final irrigation, the roots split longitudinally into a bucco-lingual direction. Root halves were cross-sectioned in apical third portion again. all root specimens were prepared for SEM investigation & photographed. Separate evaluations were undertaken for smear layer on prepared walls with a five score-index for each using reference photograph in root halves. the penetration depth of smear layer into dentinal tubules was also estimated in the other halves. the following results were obtained : 1. Smear layer was observed on all the prepared walls with three experimental groups except negative control group 2. Smear layer characteristics1) HERO 642 groups showed snowy & dusty appearance & were observed only few some dentinal tubuli open on the prepared walls, and the penetration depth of it into dential tubules may be 1-2 ㎛ thick. 2) ProFile groups showed shiny & burnished appearance & complete root canal wall covered by a homogenous smear layer with no open dentinal tubuli and penetration depth of it into dentinal tubules may be 1-2㎛ thick. 3) Engine reamer groups showed obviously file's passed tracks on the prepared walls & were observed complete root canal wall covered by a homogenous smear layer with no open dintinal tubuli. The results revealed that a completely clean root canal could not be achieved regardless of positive & negative rake angle, which is in accordance with the majority of studies on root canal cleanliness In conclusion, throughout irrigation with antibacterial solutions or chelating agents is recommended to remove the smear layer on prepared canal walls.