다랑 토혈 후 발생한 뇌경색으로 인하여 간질중첩증을 보인 간성 뇌중 1예

오형근,정두신,이경복,양광익,박형국 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.1

..

성역할 정체성의 마케팅 적용에 관한 소고

박영근,김경훈 창원대학교 산업경제연구소 2001 産經硏究 Vol.18 No.-

배전계통의 신뢰도에 관한 연구

金慶哲,全大根,姜倫摸 홍익대학교 산업기술연구소 2002 産業技術 Vol.12 No.-

Reliability is the probability of a device or system performing its function adequately for the period of time intended, under the operating conditions. Electric power networks are prime examples of systems where a very high degree of reliability is also absolutely essential for some industrial customers. A system consists of a set of components, interconnected in some purposeful way. The reliability of a system depends on the reliability of its components and on the configuration of the system. The basic indices used to examine and predict the performance of a distribution system at a customer load point are the average outage frequency, average outage duration and average unavailability. The case study system is a kind of radial configuration distribution system. This paper shows that a better meshed distribution configuration was selected by comparing the indices obtained from EDSA's reliability worth assessment of distribution systems program.

子宮破裂한 1例

林慶姬,高根翼 大韓産婦人科學會 1966 大韓産婦人科學會雜誌 Vol.9 No.5

Dextromethorphan HBr의 남용과 중독증 3례

최인근,김경식 大韓神經精神醫學會 1983 신경정신의학 Vol.22 No.1

The authors experienced 3 cases of abuse and intoxication of abuse and intoxication of dextromethorphan HBr, nonnarcotic antitussive agents. A summary of the report is as follows: dextromethorphan HBr was supposed to be abused as an euphoriant. The abusers showed toxic symptoms which were similar to those of amphetamine of anticholinergic intoxication syndromes. The symptoms of the abuse and intoxication either disappeared spontaneously or were improved by chlorpromazine in 3 to 6 days.

심인성 어지럼증 환자의 정신과적 증상에 관한 연구

이경규,이지영,김현우,이정엽,백기청,김재일,이근호 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.5

연구목적 : 어지럼증을 호소하는 환자들 중에 심인성 어지럼증 환자가 상당수 있다는 것은 알려져 있고, 이러한 심인성 어지럼증과 동반되는 정신질환으로는 불안장애, 우울장애, 인격장애 등이 있다. 이에 본 연구에서는 심인성 어지럼증 환자들의 빈도와 정신과적 증상을 알아보고자 하였다. 방 법 : 어지럼증 환자들에게 평형검사, 자세운동측정검사, 자세변화검사, caloric testing을 시행하여 심인성, 말초성 및 중추성의 3군으로 분류한 후 각각 14명, 16명, 32명을 대상으로 하였다. 대상환자들에게 한국판 Beck 우울척도검사(K-BDI), Spielberg의 상태-특성 불안검사(STAI). 간이정신진단검사(SCL-90-R)를 이용하여 정신과적 증상을 측정하여 이들 세 군을 비교분석하였다. 결 과 : 1) 심인성 어지럼증을 가진 환자는 어지럼증을 나타내는 환자 총 62명중에서 14명으로 22.6%를 차지하였다. 2) K-BDI에 따른 세 군간의 비교에서는 세 군간에 유의한 차이를 보이지 않았다. 3) STAI에 따른 세 군간의 비교에서 상태불안(STAI-S) 및 특성불안(STAI-T) 모두에서 세 군간에 유의한 차이를 보이지 않았다. 4) SCL-90-R에 따른 세 군간의 비교에서는 9개의 척도 중에서 공포불안척도에서만 중추성 어지럼증군이 47.56±6.90, 말초성 어지럼증 군이 53.50±13.74, 심인성 어지럼증 군이 58.50±16.05로 심인성 어지럼증 환자군이 중추성 어지럼증 환자군에 비하여 유의하게 높은 것으로 나타났다(p<0.01). 5) 통증 증상에 있어서는 세 군간에 유의한 차이를 보이지 않았고, 위장관 증상과 성기능 장애 증상은 중추성과 말초성 어지럼증 군이 심인성 어지럼증 군에 비하여 유의하게 높은 것으로 나타났다(p<0.01). 결 론 : 상기 결과를 토대로 했을 때 어지럼증 환자들에 대한 정신과적 접근을 위하여 각 군을 나누는 것은 별 의미가 없으며 어지럼증 환자들의 어지럼증 자체에 대한 직접적이고 집중적인 치료가 더욱 필요할 것으로 생각된다. Objectives : This study was aimed to investigate psychiatric symptoms in patients with psychogenic dizziness and compare these findings with those of patients with central and peripheral dizziness. Methods : A total of 62 patients with dizziness was the subject of investigation, and patients were classified into 32 with central type, 16 with peripheral type, and 14 with psychogenic type. Korean standardized Beck Depression Inventory(K-BDI), State and Trait Anxiety Inventory(STAI), and Korean standardized edition of Symptom Checklist 90 Revised(SCL-90-R) were used for the assessment. Statistically, Pearson's chi-square test and one-way ANOVA with Scheffe's test were used with SPSS/PC for windows 6.0. Results : The results were as follows : 1) The proportion of psychogenic dizziness was 22.6% of the total subjects. 2) Total scores of K-BDI were not significantly different among the 3 groups. 3) Total scores of state anxiety and trait anxiety were not significantly different among the 3 groups. 4) In SCL-90-R, psychogenic dizziness group showed significantly higher score of phobic anxiety only(p<0.01) than central dizziness group. And others were not significantly different among the 3 groups. 5) In additional somatic symptoms, pain score was not different among the 3 groups, but gastrointestinal and sexual symptoms scores of central and peripheral dizziness group were significantly higher than those of psychogenic dizziness group(p<0.01). Conclusion : These results suggest that psychiatric symptoms in patients with psychogenic dizziness are not different from those of patients with central or peripheral dizziness. Therefore, the more direct and intensive treatment may be necessary regardless of the type of dizziness.

다량 토혈 후 발생한 뇌경색으로 인하여 간질증첩증을 보인 간성 뇌증 1예

오형근,정두신,이경복,양광익,박형국 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.1

Status epilepticus (SE) has been described as a rare manifestation of hepatic encephalopathy. Massive bleeding and subsequent anemia may precipitate atherothrombotic cerebral infarction. Stroke is one of the possible causes of SE. A 69-year-o1d male with decompensated alcoholic liver cirrhosis presented with altered mental state and generalized convulsive SE after massive hematemesis due to varix bleeding. The hemoglobin level was 5.5 mg/dL and blood ammonia level was more than twice the normal level. The seizure was resolved after prompt and aggressive treatment for SE. The blood ammonia level was normalized after treatment for hepatic encephalopathy, but the patient' s mental state was not recovered. Brain MRI revealed multiple ischemic lesions in the both cerebral hemisphere. We present the patient as SE after acute ischemic stroke associated with anemia in hepatic encephalopathy.

화강암 풍화미지형의 연구동향과 과제

박경근 경북대학교사회과학대학지리학과 2007 地理學論究 Vol.- No.26

인지질 베지클의 입자 크기 및 형태(morphology) 변화에 대한 지방산의 영향 고찰

채병근,임경희 한국공업화학회 2002 응용화학 Vol.6 No.2

In spite of the usefulness of phospholipid vesicle, there are limitations of its appication to drug delivery system due to its low stability. Fatty acids are widely distributed in an living organisms as a constituent of various complex lipids. There is the effect of size reduction by addition of fatty acids to vesicle as other nonionic amphiphiles, its degree is varied with the mole fraction and the acyl chain length of fatty acid. The effective size of headgroup is reduced because of hydrogen-bonding interaction between phospholipid and fatty acid, and vesicle will be smaller hydration shell, this leads to size reduction. Fully protonated fatty acids are only very weakly hydrophilic and thus it offers dilution tolerance to vesicle. In proportion to reducing of chain length of fatty acid, the morphology of vesicle shifts highly to the low dimension microstructure(i.e vesicle to bilayer and/or cylindrical structure). In the present work, I studied the potential of phospholipid/fatty acid mixture for transdermal drug delivery system.

사이클로이드 곡선 및 3차 다항식 곡선기어의 치형 설계에 관한 연구

최종근,윤경태 한국공작기계학회 2002 한국생산제조학회지 Vol.11 No.3

The free curve gear is a non-circular gear without any rotating center, which can perform free curve motion for complicated mechanisms, and minimize the work area. In this study, an algorithm for tooth profile generation of free curve involute gear is developed. The algorithm uses the involute gear creating principle in which a gear can be generated by rolling with another standard involute one. Cycloid curve and third polynomial curve gears were designed and verified by computer graphics. These gears are manufactured in the Wire-cut EDM and examined in engagement with a standard spur gear. The results showed that the proposed algorithm is successful to design and to manufacture the free curve gear with concave and convex profiles.