中國中古前期時代의 數學史槪觀

金東琪 명지대학교 1983 明大論文集 Vol.14 No.-

관상동맥질환을 동반한 모야모야병 1례

김동기,이영태,김기향,김성만,김대경,김두일,김동수 白中央醫療院 2005 仁濟醫學 Vol.26 No.1

Moyamoya disease is an occlusive intracranial arteriopathy with an abnormal cerebral vascular collateral networks. Although this disease is known to be associated with stenosis of extracranial arteries, such as the renal artery, a case associated with stenosis of the coronary artery is extremely rare. We report a case of coronary artery occlusive disease affected by Moyamoya disease. The patient was a 38-year-old female experiencing intermittent headache and exer tional chest pain. Cerebral MRI showed complete obstruction of both internal carotid arteries and abnormal cerebrovascular systems which confirmed Moyamoya disease. Coronary angiography showed a significant stenosis of left anterior descending coronary artery ostium with TIMI grade I collateral blood flow from the normal right coronary artery. After coronary artery stenting and medical treatment for headache, her subjective symptoms were relieved. In Moyamoya patient, an evaluation of the extracranial (especially coronary artery) vascular system should be considered if there are some evidences of coronary artery disease.

일부 지역사회에서 구강건강관리인력의 금연지도활동에 관한 조사연구

김동기,김진선,성진효 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.4

Purposes: The purposes of this descriptive correlational study were to assess knowledge and attitude related to smoking, smoking cessation counselling activity, and to identify predictors of smoking cessation counselling activity among oral health care team(OHCT) in a community. Method: All of oral health care personnels employed by university dental hospital, dental hospital, dental clinic and dental clinic of health center in a community were surveyed using a structured questionnaire. Of the oral health personnel surveyed, 760(38.5%) returned completed questionnaires. Results: OHCT had a relatively positive attitude toward the their roles and responsibilities about smoking cessation counselling activity. However, smoking cessation counselling activity was not a routine part of dental practice. Moreover, the level of smoking cessation counselling activity was significantly different by working place. OHCT who working at the university dental hospital, dental hospital and dental clinic of health center were more actively participate in smoking cessation counselling activity than OHCT who working at the dental clinic. Smoking cessation counselling activity was correlated with knowledge of smoking, attitudes to smoking related issues, and self-efficacy of smoking cessation counselling activity. In the final stepwise multiple regression, smoking cessation activity was predicted by OHCT's working place, attitudes to related to smoking issues, and self-efficacy of counselling knowledge and skills. Condusion: OHCT need to participate routinely and actively in smoking cessation counselling activity. For OHCT to effectively counsel and intervene patients regarding smoking cessation, it is essential to integrate smoking cessation intervention education into dental school curricula and to offer continuing education smoking cessation intervention to practicing OHCT.

有限半群의 Construction 理論에 對하여

金東璂 명지대학교 1979 明大論文集 Vol.12 No.-

CAE를 이용한 플라스틱 사출금형 제품 개발

김기환,권창오,송동주 嶺南大學校 工業技術硏究所 2002 工業技術硏究所論文集 Vol.30 No.2

Optimal design for the injection molding process of a hand brake cover was investigated by using CAE. The viscoelastic flow through a hand brake cover shape mold were calculated and compared with the experimental data. Numerical analysis reasonably predicted the general performance, i.e, hold pressure, cooling time and hold pressure time. In order to determine optimal process parameters, Numerical analysis and experiments have been performed for various process conditions. In this study, we increased the productivity by 160% by optimal process conditions.

EDAP LT-01+ 체외충격파쇄석기를 이용한 요로결석 치험 1,816례 : A Report of 1,816 Cases

최동규,서기석,임정식 圓光大學校 醫科學硏究所 1995 圓光醫科學 Vol.11 No.2

Between February 8. 1990 and December 31. 1994, 1.816 renal units in 1.611 patients with urinary stones were treated with extracorporeal shock wave lithotripsy(ESWL) using the EDAP LT-01+ lithotriptor. The patients' mean age was 44.3 years with the range of 16 months to 92 years. Sex ratio was 1.39:1 with 936(58.2%) male and 675(41.8%) female patients. Locations of the stones were kidney in 746(41.1%) including 39 cases of staghorn calculi, ureter in 1061(58.4%) and bladder in 9 cases(0.5%). And mean diameter of the stones was 13mm ranging from 2mm to 80mm. Average number of treatments, average treatment time per session and average total storage per patient were 4.0 sessions, 37.6 minutes and 134.4. respectively. Of the 1,816 cases. 141 cases(7.8%) complained of severe pain requiring intravenous or intramuscular analgesics. Success rates by stone size were 98.0%(1,069 cases/1,091 cases, storage/treatment number: 74.7/2.7) in less than 10㎜, 94.4%(453 cases/480 cases, 146.1/4.5) in 10㎜ to 19㎜. 73.4%(116 cases/158 cases, 242.4/7.1) in 20㎜ to 29㎜ and 60.9%(53 cases/87 cases. 402.6/11.2) in more than 30㎜. Success rates by stone location were 66.7%(6/9) in bladder stones. 66.7%(26/39) in staghorn calculi. 77.9%(60/77) in ureteropelvic junction(UPJ) stones. 93.1%(658/707) in renal stones, 94.8%(458/483) in upper ureteral stones and 96.4%(483/501) in lower ureteral stones. Success rate(when patients having stone particles less than 4mm in diameter without causing urinary tract obstrution, were considered to be treated successfully) was 93.l%( 1,691/1,816) and stone-free rates was 88.9% (1,615/1.816). Additional measures used were double-J stenting in 91 cases, percutaneous nephrostomy in 42 cases and push-up in 39 cases. Post-ESWL complications were persistent gross hematuria lasting more than three days in 29 cases, high fever(>38℃) in 38 cases and steinstrasse in 109 cases. We conclude that extracorporeal shock wave lithotripsy with EDAP LT-01 + lithotriptor is an effective treatment modality for urinary stone less than 2.0㎝ in diameter even though retreatment rate is high.

우리나라 인삼산업의 활성화 방안에 관한 연구

박재기,송우용,윤동섭 충남대학교 경영경제연구소 2001 경영경제연구 Vol.24 No.2

우리나라의 인삼산업은 그 잠재력에도 불구하고 국제시장에서 경쟁력을 잃어가고 있으며, 국내시장에서의 경쟁기반도 취약해지고 있는 상황하에서 시장개방과 경쟁력 있는 외국제품의 성장 등 미국의 전망도 그리 희망적이지 못한 것으로 요약된다. 본 연구는 대내외적으로 위기상황에 처한 우리나라 인삼산업의 현재 경쟁상황을 분석하고, 활성화 방안 제시하였다. 인삼산업의 활성화를 위해서는 기계화율을 높임으로써 생산비 절감할 수 있는 경작방법을 개발하고 폐쇄적이고 복잡한 유통구조를 투명하게 하여 시장의 활력을 재고해야 하며, 전매제의 폐지에 다른 가공업자의 난립으로 빚어진 과일경쟁 및 해외시장에서의 이미지 하락에 대응하고, 통일되고, 체계적인 감독과 규제가 이루어질 수 있는 제도적 조화가 이루어져야한다. 특히, 소비자에 대한 인삼의 효과적인 복용법을 홍보함으로써 다양한 인삼제품의 소비기반이 확충되도록 해야한다.

난소의 평활근종 - 2예 보고 -

기정혜,김태승,신동환 대한병리학회 1999 Journal of Pathology and Translational Medicine Vol.33 No.7

상악 제1소구치의 교두각에 따른 전부도재관의 응력분포에 관한 연구

김원규,신동국,송기범,동진근 원광대학교 치의학연구소 2003 圓光齒醫學 Vol.12 No.3

The purpose of this study was to know stress distribution of ceramic crown according to the cusp angle. For the study, it was manufactured a three dimensional finite element model simplified maxillary first premolar, and then analyzed stress distribution when cusp angle was each 80°, 90°, l00°, 110° and 120°. The results obtained were as follows; 1. The von Mises stress showed that stress decreases as cusp angle increases in the central groove of the occlusal surface. 2. It showed that maximum principal stress was centered at the region of the central groove of the occlusal surface and a region which the force was inflicted. And also it appeared high on the lingual and buccal side of finish line. 3. The X axis of normal stress was focused in the central groove of the occlusal surface. The Y axis of normal stress appeared high in the central groove of the occlusal surface, b u d and lingual side. 4. The stress near the finish line showed a low value compared with stress in the region of the central groove of the occlusal surface. 5. It showed that the most dangerous angle for tooth fracture was on 80° of the cusp angle and low on 120° of its.

방선균 WCM-9가 생산하는 Polyene 항진균성 항생물질(AF1)의 생물학적 성상

신운섭,정선호,이동희,이경호,김수기,박주영,고춘명 대한의진균학회 1996 대한의진균학회지 Vol.1 No.1

Background: Pathogenic fungi infect humans, especially immunocompromised patients, with superficial or deeply invasive pattern. In the past 20 years, fungal infections have been increased dramatically resulted by increment of organ transplantation, cancer, AIDS patients, or use of broad-spectrum antibacterial agents. Fungal infections are now important causes of morbidity and mortality of hospitalized patients. but there is no effective antifungal antibiotics as well as antibacterial antibiotics Objective: Effective new antifungal antibiotics are needed for the treatment of mycosis. So in an effort to develop effective antifungal antibiotics, we screened over 600 isolates of Streptomyces spp. from soil. Methods: Antifungal producing strain was selected using disk diffusion method, An antifungal substance (AF1) was purified with ethyl acetate extraction, silica gel column chromatography and reverse phase HPLC. MICs of AF1 were detected by agar dilition method. Results: The compound showed UV maxima of 307, 321, 340, 359 nm indicating methylpentaene. Minimum inhibitory concentrations of the AF1 were 3.7 ㎍/ml against mold, and 3.7 - 7.4 ㎍/ml against Candida species. AF1 was also active against Cryptococcus neoformans, with MIC of 0.9 ㎍/ml. The concentration of AF1 for K^+ ion release from human red blood cell and hemolysis were 5 ㎍/ml. Conclusion: The antibiotic purified from culture broth of Streptomyces sp. WCM-9 was a polyene antifungal antibiotic which have broad spectrum antifungal activity.