만정 뇌경막하혈종에서 술전 CT음영 및 천두폐쇄배액술후 배액량과 재발과의 상관관계에 대한 연구

임동준,박윤관,정용구,김봉룡,정흥섭,이기찬,이훈갑,서중근 대한신경외과학회 1998 Journal of Korean neurosurgical society Vol.27 No.10

척수원추내에 발생하여 외장성 성장을 보인 낭종성 기형종 -증 례 보 고-

임동준,박윤관,김애리,정흥섭,이기찬,이훈갑,서중근 대한신경외과학회 1998 Journal of Korean neurosurgical society Vol.27 No.10

전해분석법에 의한 광석중 Nickel의 정량에 관한 연구

金演斗,裵埈鉉 충남대학교 자연과학연구소 1983 忠南科學硏究誌 Vol.10 No.2

The undesirable impurities such as iron cobalt and copper interfere the electrogravimetric determination of nickel from the ores by the depositing theses species on the platinum cathode at same time. To solve this problem, the separation of them with the liquid anion exchanger, Amberlite LA-1, has been attempted. The selective and quantitative result of determination of nickel was obtained by extracting them with 50ml of 5% Amberlite LA-1-Xylene in the concentrated hydrochloric acid solution of the nickel ore.

분광광도법에 의한 염화철중 규소의 정량에서의 Amberlite LA-2의 이용

김연두,배준현,정현옥 충남대학교 자연과학연구소 1988 忠南科學硏究誌 Vol.15 No.1

For the photometric determination of silicon in the iron(Ⅲ) chloride, the iron(Ⅲ) was extracted to organic phase with Amberlite LA-2 in the cons. HCl solution. In the residual aqueous solution, the silicon was determined by molybdenum blue method. The method was found to be very useful to determine a low concentration of silicon in the concentrated iron sample.

환경친화 주거단지의 주거환경수준 만족도 조사 연구

김연준,안태선 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(계획계)

The propose of this research is to investigate the degree of housing environment satisfaction for the Environment-Friendly Housing estates. For the purpose, six housing estates recently rewarded as the Environment-Friendly Housing Certification are selected. Comparing to the existing housing estates, these estates are evaluated based on the housing environment satisfaction elements. The main assessment results are as follows : In the category of house, the certificated housing estated are provided as an higher level satisfaction. In the category of residential site, they are similar to the existing housing sites. These housing estates are expected to improve the future housing development

Simulated resin root canal에서 엔진 구동형 Ni-Ti 파일로 근관성형 후 Buchanan plugger의 근관 내 삽입깊이에 대한 비교 연구

박연식,김동준,황윤찬,황인남,오원만 大韓齒科保存學會 2006 Restorative Dentistry & Endodontics Vol.31 No.2

본 연구는 레진 블록에서 엔진구동형 Ni-Ti 기구를 이용하여 근관성형 후 Buchanan plugger의 삽입 깊이에 대한 비교를 통해 임상적 상황에서 Ni-Ti 파일로 근관 성형 후 Continuous wave of condensation technique을 이용한 근관 충전시 적절한 크기의 Buchanan plugger 선택에 지침을 제공하기 위해 시행되었다. 만곡근관과 직선근관을 가진 레진 블록에서 ProTaper와 ProFile을 이용하여 근관 성형을 하였다. 성형 후 근관에 Buchanan plugger 가 근관벽과 처음으로 접촉하는 부위까지 삽입한 후 그 상태에서 스태너를 이용하여 이미지를 얻었다. 이미지 분석 프로그램을 이용해 근첨에서 plugger 첨부까지의 거리를 얻었다. 각 기구에 대한 plugger 삽입깊이에 대한 유의성을 검정하기 위해 one-way ANOVA를 시행하였고, 사후검정을 위해 Scheffe's test를 시행하였다. 본 연구의 결과 만곡되고 좁읍 근관에서, ProTaper F2와 F3로 마무리 성형한 근관에서 F. FM 크기의 plugger를 사용할 경우 Continuous wave of condensation technique으로 적절한 근관충전이 가능함을 시사하였다. This study was conducted to evaluate the insertion depth of Buchanan plugger after shaping by various Ni-Ti rotary files. It was conducted to determine which size of plugger are appropriate, when root canals are shaped with Ni-Ti rotary files and obturated by Continuous wave of condensation technique. Two type of eighty simulated resin blocks were used : J-shaped and straight shaped canal. The simulated canals were instrumented by ProTaper and ProFile. Buchanan pluggers were inserted into the canal, and then the image was recorded to scanner. The distance from the apex of the canal to the plugger tip was measured by image analysis program. Data were analyzed by one-way ANOVA followed by Scheffe's test. The results were as follows 1. In straight canal finished up to ProTaper F2 and F3 file, F and FM pluggers were inserted more than 5 ㎜ short of working length. 2. In J-shaped canal finished up to ProTaper F2 file, F pluggers were inserted more than 5 ㎜ short of working length. Finished up to ProTaper F3 file, F and FM pluggers were inserted more than 5 ㎜ short of working length. 3. In straight and J-shaped canal finished up to ProFile . 06/#20 and ,06/#25, any of Buchanan plugger could not be inserted more than 5 ㎜ short of working lenghth. These results suggest that canals shaped by ProTaper could be obturated by Continuous wave of condensation technique with F and FM size Buchanan plugger.

치료 저항성 환청을 호소하는 정신분열병 환자에 대한 반복 경두개 자기자극(rTMS)과 전기충격요법(Modified ECT)의 연속적인 치료 경험 1례

권준수,전홍진,윤탁 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.4

정신분열병에서 치료에 반응하지 않으며 지속되는 환청은 환자에게 매우 불쾌한 감정을 유발할 수 있으며 환청의 내용에 따라 위험한 경우도 있다. 환청에 대한 기능적 뇌영상 연구 결과로 환청이 정상 청각경로의 비정상적인 활성으로 발생하며, 환청이 들리는 동안에 좌측 상부 측두엽 등이 활성화 된다는 사실을 알게 되었다. 본 증례에서는 항정신병 약물에 대한 치료 저항성 환청을 가진 35세 기혼 여자 환자에 대해서, 좌측 상부 측두엽을 국재화한 후 뇌의 국소적 자극이 가능한 Magstim 200장비와 Double cone shaped coil을 이용하여 1HZ slow wave 반복 경두개 자기자극(rTMS)을 가하였다. 항정신병 약물을 유지한 상태에서 최고 100pulse의 총 14회의 자극을 통해 환청의 주관적인 크기의 30% 감소와 정동의 호전을 관찰할 수 있었다. 반복 경두개 자기자극(rTMS)종료 2주 뒤에 추가적으로 시행된 9회의 전기충격요법(ECT)결과 환청이 빠른 속도로 완전히 소실되었다. 치료저항성 환자의 환청에 대한 치료효과는 rTMS보다 ECT가 효과적임을 알 수 있었다. The Persistent auditory hallucinations may provoke the uncomfortable feeling and be dangerous according to its contents in treatment-resistant schizophrenic patients. Previous functional brain imaging studies on suditory hallucinations reported that the abnormal activations of the normal auditory pathway and the activations of the left upper temporal lobe were found while patients were hallucinationg voices. Base on the these findings, we treated a female schizophrenic patient with persistent auditory hallucinations that were treatment-refractory with rTMS and the ECT continuously while she was on the drug treatment. The total amount of pulses applied in each trial ranged from 240 to 1000pulses. Fourteen trials were done and resulted in decrease by 30% in the subject severity of auditory hallucinations and the improvement of the affect. Two weeks after the completion of rTMS trials, nine trials of ECT were administered which leaded to complete disappearance of auditory hallucinations. This result suggest that ECT is more effective than rTMS in treating persistent auditory hallucinations in treatment-resistant schizophrenic patients.

활성슬러지의 미생물 Floc 에 의한 폐수내의 중금속 제거에 관한 연구

정연규,민병헌,우희준 연세대학교 산업기술연구소 1986 논문집 Vol.18 No.2

Cd(Ⅱ) and Zn(Ⅱ) were removed by microbial floc in activated sludge to a certain degree. This study may show the conditions on which heavy metal removal efficiency can be increased. Activated sludge and heavy metals were completely mixed and then settled on each condition. Supernatant liquor was sampled at regular intervals and removal efficiency was determined and removal mechanism was analyzed. The Cd(Ⅱ) and Zn(Ⅱ) removal efficiency was varied with pH, initial concentration, MLSS concentration and temperature, As the results, Cd(Ⅱ) and Zn(Ⅱ) were to a higher degree at pH 9 and the removal efficiency was increased with the lower initial contration, the higher MLSS concentration and higher temperature. Also, 80-90% removal efficiency of total was occurred within 30-60 minutes and after that the efficiency increased slowly.

Actazolamide와 Fluphenazine의 뇌척수액 생성에 대한 효과

송준혁,박윤관,정흥섭,서중근,이훈갑,이기찬,주정화 대한신경외과학회 1993 Journal of Korean neurosurgical society Vol.22 No.10

The purpose of this study was to investigate the effect of acetazolamide and fluphenazine on the formation of CSF. Studies were performed in 12 cats those were divided into 2 groups ; A-F group included animals received initial acetazolamide infusion and additional infusion of fluphenazine to the initial infusion and the F-A group for vice versa. The rate of CSF formation was measured at 3㎝ above zero outflow pressure by force transducer which connected to personal computer. After obtaining steady value of CSF formation rate, the drugs were infused intravenously according to the protocol. Base line CSF formation rate, 18.87±6.52μl/min, is reduced to 6.67±2.45μl/min after acetazolamide infusion and further reduced to 3.48±4.06μl/min after additional fluphenaxine. In fluphenazine group, the base line CSF formation rate, 16.34±4.58μl/min is reduced to 9.63±4.58μl/min after initial infusion of fluphenazine and further to 6.45±3.64μl/min, after additional infusion of acetazolamide. Mean reduction of CSF formation after initial intravenous infusion of acetazolamide and fluphenazine were 59% and 37% respectively. Although statistically insignificant, the CSF formation reduction in A-F group revealed more even and profound value comparing with that of F-A group. These date suggest that in addition to the effect of acetazolamide to reduce the formation of CSF, some other mechanism may exist in CSF formation that major tranquilizer exert the effect on CSF formation.

유산소성 운동이 정신지체인의 체력 및 폐기능에 미치는 영향

김영준,김윤영,김주혁,박재성 東亞大學校附設스포츠科學硏究所 1998 스포츠科學硏究論文集 Vol.16 No.-

This study aims to investigate what influence an aerobic exercise on the physical fitness and the vital capacity of the mentally retarded adults. In order to do this successfully, an aerobic exercise is conducted on the mentally retarded adults, as the object of study, affiliated with Pusan Therapeutic Recreation Association for twelve weeks, 50 minutes everytime, once a week. As a result of this study, the conclusions are obtained as follows: First, it is represented that there is a significant difference among them in their back strength, grip strength, trunk flexion forward, side-step, sit-ups, sargent jump and stork stand. However, there is no significant difference among them in their push-ups and whole body reaction time after their 12 weeks' aerobic exercise. Second, judging from their vital capacity, it is shown that there is a significant difference (p<.01) among them in their forced vital capacity (FVC) and forced expiratory volume for 0.5 second (FEV.5), while there is no significant difference among them in the percentage of their forced expiratory volume for 0.5 second for FVC (FVC.5/FVC(%)) and peak expiratory flow (PEF). However, it is proved that in their maxical voluntary ventilation (MVV), there is a significant difference among them after 12 weeks' aerobic exercise (p<.05). Therefore, it can be seen that 12 weeks' aerobic exercise results in making much progress in the development of their physical fitness and vital capacity. In this respect, it is expected that much more various and advanced research of rehabilitation and exercise programs for the handicapped would be needed .