Thermocouple을 이용한 Buchanan Plugger 표면의 온도상승 분석

조진숙,황윤찬,김선호,황인남,최보영,정영진,정우남,오원만 전남대학교 치의학연구소 2003 구강과학 Vol.15 No.4

This study was performed to confirm the actual temperature rise on the surface of Buchanan plugger by evaluating the temperature rise on the surface of it, the peak temperature of pluggers of various size using thermocouple. The heat carrier system 'System B Heatsource' (Model 1005, Analytic Technologies, USA) and the Buchanan pluggers of F, FM, M and ML sizes are used for this study. The temperature was set to 200 which Dr. Buchanan's "Continuous wave of condensation" technique recommended on digital display and the power level on it was set to 10. The touch mode was used. Five thermocouples were placed in direct contact with the surface of each size of Buchanan's pluggers at 1 ㎜ increments from the tip to the 4 ㎜ length of shank. Each thermocouple was secured with cyanoacrylate adhesive and orthodontic resin block. The two wire leads of each thermocouple were connected to the appropriate channels of Data Logger. This was configured to simultaneously record input from the five thermocouples. The heat control spring was touched for 1, 2, 3, 4 and 5 seconds, and the temperature rise on the surface of the pluggers were measured at 1 sec intervals for more than 5 seconds with an accuracy of 0.01. Ten trials was determined for each plugger. The average of temperature rise and standard deviation was calculated for each size of plugger. The data were statistically analyzed by one-way ANOVA to determine their significance. The results as follows. 1. The position at which the temperature peaked was approximately at 1∼2㎜ far from the tip of Buchanan plugger (p<0.01). 2. The peak temperature was 215.25±2.28℃ in F plugger, 185.94±2.19℃ in FM plugger, 169.51±9.12℃ in M plugger, and 160.79±1.27℃ in ML plugger and the peak temperature was highest in F type and followed by, in descending order, FM type, M type. ML type showed the lowest peak temperature (p<0.01). This results suggest that the actual temperature on the surface of the pluggers does not correlate well with the temperature set on digital display. Heat concentrates around the tip. The larger plugger reveals lower temperature rise relatively.

소아의 상완골 원위부 과간 골절

이우석,정환용,김우식,김용찬,전택수,김남현,김규태 대한골절학회 2004 대한골절학회지 Vol.17 No.4

상완골 원위부 과간 골절은 소아에서는 매우 드물게 발생되는 골절로 대부분 주관절의 굴곡상태로 주관절 후방부에 직접적인 충격에 의해 발생하는 것으로 보고되고 있다. 전위가 없거나 경미한 경우 도수적 정복술 혹은 도수적 정복술 후 경피적 핀고정술을 시행하며, 전위가 심한 골절이거나 도수적 정복술이 불가능한 경우 관혈적 정복술 후 핀고정술을 시행하는 것으로 알려져 있다. 저자들은 전위된 상완골 원위부 과간 골절 환아 2예에서 각각 도수적 정복술과 관혈적 정복술 후 K 강선 고정술을 시행하여 만족한 결과를 얻었기에 보고하는 바이다. Intercondylar fractures of the distal humerus are very rare in children. The pattern of the fracture would suggest that the mechanism of injury involves a fall directly on the flexed elbow. Most agree that the undisplaced fracture can be managed conservatively. With increasing displacement and comminution, the opinions tend to differ. We suggest that closed reduction with percutaneous K wire pinning and open reduction with percutaneous K wire pinning offer a satisfactory methods by which to treat displaced intercondylar fracture in children.

수리분석에 의한 한국 Drosophila 아속 10종에 대한 계통학적 연구

김남우,주은영,이양숙 慶山大學校 2000 論文集 Vol.18 No.1

Systematic relationships among the 10 species (D. virilis, D. lacertosa, D. tsigana, D. angularis D. brachynephros, D. curvispina, D. kuntzei, D. nigromaculata, D. takadai, D. unispina) of the subgenus Drosophila in Korea were investigated by taximetrical analysis. The taximetrical analysis of the 10 species according to the30 morphological characters were performed using UPGMA and cladistic analysis. The similarity coefficient (Gower's) between D. angularis and D. brachynephros was the highest value 0.941, and between D. curvispina and D. takadai was relatively high over 0.88. On the other hand, that between D. virilis and D. takadai was lowest value of 0.271. A dendrogram was constructed by cladistic analysis among 10 species with 30 morphological characters. The result of cladistic analysis D. virilis has the most primitive characters. The 10 species seem to be cladisted into three groups (D. virilis, D. lacertosa, P2). D. tsigana and P3 were derived from P2. Three derivative groups were cladisted from primitive species (P3). One derivative group included D. nigromaculata and next group included D. brachynephros, D. angularis, D. kuntzei, D. takadai, and the other group comprised D. unispina, D. curvispina. These results might suggest that the subgenus Drosophila consist of two section; the 1st section of D. virilis, D. lacertosa, D. tsigana and 2nd section of D. angularis, D. brachynephros, D. curvispina, D. kuntzei, D. nigromaculata, D. takadai, D. unispina. The group to which D. virilis belonged was considered as the primitive. However, it could not be the direct primitive to the another group, Instead it was presumed that there had been another ancestor.

면역성 혈소판감소성 자반증 및 호중구감소증을 동반한 궤양성 대장염 2예

남승우,양석균,김진천,지현숙,김우건,정훈용,박주상,홍원선,민영일 大韓消化器病學會 1999 大韓消化器病學會誌 Vol.33 No.1

열전대(thermocouple)를 이용한 Buchanan Plugger 표면의 온도상승 분석

조진숙,황윤찬,김선호,황인남,최보영,정영진,정우남,오원만 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.4

This study was performed to evaluate the actual temperature rise on the surface of Buchanan plugger using thermocouple. The heat carrier system 'System B Heatsource'(Model 1005, Analytic Technologies, Redmond, WA, USA) and the Buchanan pluggers of F, FM, M and ML sizes are used for this study. The temperature was set to 200℃ on digital display and the power level on it was set to 10. Five thermocouples were placed in direct contact with the surface of each size of Buchanan's pluggers at 1 mm increments from the tip to the 4 mm length of shank. The heat control spring was touched for 5 seconds, and temperature rise on the surface of the pluggers were measured at 1 sec intervals for more than 5 seconds with an accuracy of 0.01 using Data Logger. The data were statistically analyzed by one-way ANOVA. The results were as follows. 1. The position at which the temperature peaked was approximately at 1~2 mm far from the tip of Buchanan plugger (p<0.01). 2. The peak temperature was 215.25±2.28℃ in F plugger, 185.94±2.19℃ in FM plugger, 169.51±9.12℃ in M plugger, and 160.79±1.27℃ in ML plugger and the peak temperature was highest in F plugger and followed by, in descending order, FM plugger, M plugger. ML plugger showed the lowest peak temperature (p<0.01). 3. The temperature on the pluggers was decreased with the increase of touching time. This results suggest that the actual temperature on the surface of the pluggers dose not correlate well with the temperature set on digital display. Heat concentrates around the up. The larger plugger reveals lower temperature rise relatively.

흡연력을 고려한 궤양성 대장염 발생과 충수 절제술 사이의 상관 관계

남승우,양석균,정훈용,심기남,조병동,김승용,박의련,홍원선,민영일 大韓消化器病學會 1998 大韓消化器病學會誌 Vol.32 No.1

활동성 궤양성 대장염 환자에서 발생한 뇌정맥 혈전증 1예

남승우,양석균,정훈용,주연호,홍원선,민영일,김종성,유창식,서대철 大韓消化器病學會 1998 大韓消化器病學會誌 Vol.32 No.3

쇄골 골절에서 지연성 상완 신경총 마비 : 1예 보고 A Case Report

이우석,정환용,전택수,김용상,김남현 대한골절학회 2003 대한골절학회지 Vol.16 No.2

상완 신경총 마비는 쇄골 골절 후에 매우 드물게 발생하며, 대부분 많은 가골 형성을 동반한 쇄골의 중간1/3 부위 골절 불유합에서 발생한다. 골절의 치유 과정에서 과형성된 가골이 상완 신경총을 압박할 수 있으며, 감압술고 불유합에 대한 수술적 치료를 필요로 한다. 이에 저자들은 쇄골 골절 후 불유합과 과도한 가골 형성에 의해 발생된 지연성 상완 신경총 마비 환자를 치험 하였기에 보고하는 바이다. The brachial plexus palsies secondary to nonunion of the clavicle fracture are extremely rare. The nonunions are hypertrophic and usually in the middle third of the clavicle. Hypertrophic callus produced healing process will cause a compression of the neurovascular bundle. This lesion requires operative treatment for decompression of the brachial plexus and internal fixation of nonunion. We present a case of delayed brachial plexus palsy due to nonunion and excessive callus formation of a clavicular fracture.

생약복합제제의 병용투여에 관한 연구 (제1보) : 가미청심연자탕과 항고혈압약물과의 병용투여 Combined usage of Kamichungsimyunja-Tang and Anti-hypertensive Drugs

이석주,김남재,김종우,홍남두 한국병원약사회 1993 병원약사회지 Vol.10 No.4

Effects of Combined usage of combined preparation of crude drugs(Kamichungsimyunja-Tang) and anti-hypertensive drugs were examined in anti-hypertensive effects in rats and diuretic effects in mice. Kamichungsimyunja-Tang is an added and subtracted prescription of Chungsimyunja-Tang which it has become one of the favorate prescriptions at the Oriental Medical Hospital, Kyung-Hee University. Kamichungsimyunja-Tang has been used widely in cardiovascular disorder in Oriental medicines. Kamichungsimyunja-Tang was orally given and anti-hypertensive drugs such as hydralazine, verapamil and atenolol were intravenously given to rats. Effects of combined usage of Kamichungsimyunja-Tang and antihypertensive drugs for the anti-hypertensive actions significantly increased the anti-hypertensive effect of anti-hypertensive drugs. Kamichungsimyunja-Tang and diuretic drugs such as furosemide and hydrochlorothiazide was orally given to mice. Effects of combined usage of Kamichungsimyunja-Tang and diuretic drugs for the diuretic effects significantly increased the effect of diuretic drugs. These result suggested that combined usage of Kamichungsimyunja-Tang and anti-hypertensive drugs and diuretic drugs for the anti-hypertensive and diuretic actions significantly increased the effect of anti-hypertensive and diuretic drugs.

Ender정과 Knowles핀을 이용한 노인 대퇴골 전자부 골절의 치료

문명상,우영균,선두훈,남석현 최신의학사 1992 最新醫學 Vol.35 No.11