Trifluoromethyl(CF_3)기를 함유한 폴리아미드의 합성과 물성에 관한 연구

배성호,이용택 경희대학교 산학협력기술연구원 2000 산학협력기술연구논문집 Vol.6 No.-

Trifluoromethyl containing polyimide(PI) was synthesised thermal and chemical imidization method. Increasing trifluoromethyl contents in polyimide main chain it appears increasing solubility and transmittance in visible region and decreasing thermal decomposition temperature. Chemical imidized PI has lower decomposition temperature than thermal imidized PI but did not affect seriously thermal stability.

대전·충남지역 와병노인의 실태에 관한 연구

이동배,심운택,이태용,오장균,정성훈 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.1

This study was conducted to investigate the prevalence rate and the relationship between causative diseases and self-help abilities in bed ridden patients of the elderly. The study group was composed of 1.568 peoples aged 65 or more, living in Taejeon city and Chungnam provincial area. The results obtained were as follows : 1. The prevalence rate of bed ridden patients were 5.7% in male, and 4.3% in female. The rates revealed increasing basis with the ages. 2. The prevalence rate was higher in city area with 6.1% than inland and seaside area with 4.3%, 3.7% respectively. 3. The mean age of bed ridden patients were 75.9 years in male. 78. 0 years in female. The rates were variable with residential area. As the cause of bed ridden patients the cerebrovascular disease was higher in urban than rural area. 4. The mean age of causative diseases was the highest in contusion and fracture with 82.8 years. The period of bed ridding was the highest in muscular disease and arthropathy with 60.2 monthes. 5. The average score of activity of daily living was the highest in muscular disease and arthropathy and followed by respiratory disease, other disease, senility, cerebrovascular disease, contusion and fracture with decreasing basis. But most bed ridden patients did the activity of daily living similar to those of normal persons. 6. The causative diseases were diagnosed mainly in general hospital, hospital. and herb medicine. but muscular disease and senility were in self-diagnosed. 7. The helper of bed ridden patients were mainly wives or daughters in law.

풋마늘 生産을 위한 種球의 低溫貯藏 效果

김기택,김성배,박용봉,장전익 濟州大學校亞熱帶農業硏究所 1996 亞熱帶農業硏究 Vol.13 No.-

Summary This study was carried out to determine the difference between low temperature stored seed bulbs(4∼5℃) and room temperature seed bulbs(20∼25℃), planting time July 28, August 6 and August 16. We checked the germination percentage of growth and the fresh weight of green garlic1. First appearance of sprouts in low temperature seed bulbs : Jabong, 4∼8days, Goheung Jaere, 7∼13 days seed bulbs. 2. High weather period, July 28, growth increased when we stored common garlic in low temperature storage. 3. Low temperature stored seed bulbs increased first growth more than room temperature seed bulbs. However, the effect caused earlier growth of Jabong but Goheung Jaere sprout late. 4. Plant height, leaf numbers, leaf width and leaf sheath of garlic were increased by low temperature storage. However, Jabong garlic decreased commercial value owing to late secondary growth after Feburary. 5. It was possible to produce Jabong garlic from November to Jannuary and Goheung Jaere from Jannuary to March with low temperature stored seed bulbs.

교합성 골수강내 금속정술후 발생한 대퇴골 간부 골절의 불유합의 치료

이근배,문은선,송은규,최진,정성택 대한골절학회 2002 대한골절학회지 Vol.15 No.4

목적 : 교합성 골수강내 금속정술 후 발생한 대퇴골 간부 골절의 불유합의 치료 결과를 알아 보고자 하였다. 대상 및 방법 : 1990년 5월부터 2000년 7월까지 대퇴골 간부 골절에 대한 교합성 골수강내 금속정술후 발생한 불유합에 대해 치료받은 환자중 1년 이상 추시 가능하였던 33명을 대상으로 후향적으로 조사하였다. 수술 당시 평균 연령은 40세(19~68)였으며, 남자가 27례, 여자가 6례였다. 불유합의 형태는 Weber와 Brunner와 분류 방법에 따르면 과혈관형 10예(30%), 무혈관형 21예(64%), 혼합형이 2예(6%), 무혈관형중에서 감염성이 5예(23%)였다. 결과는 수술 방법에 따른 골 유합 기간 및 불유합, 부정 유합, 감염 등의 합병증의 유무로 평가하였다. 결과 : 수술 방법은 불유합의 원인과 형태에 따라 결정하였으며, 5가지 방법으로 시행하였다. 골수강내 금속정 교환술을 시행한 경우가 7예, 골수강내 금속정 교환술 및 골 이식술을 함께 시행한 경우가 11예, 외고정술 5예, 금속판 고정 및 골 이식술 3예, 해면골 이식술만을 시행한 경우가 7예였다. 골유합 기간은 각각 평균 19주, 17주, 20주, 16주, 15주로서 치료 방법 간에 통꼐학적인 의의는 없었다. 전례에서 술 후 감염이나 불유합, 부정 유합 등은 관찰되지 않았다. 결론 : 교합성 골수강내 금속정술후 발생한 대퇴골 간부 골절의 불유합의 치료에 있어서는 불유합의 원인과 형태를 잘 분석하여 그 원인에 맞는 적절한 치료 방법을 선택하는 것이 골유합을 얻는데 매우 중요하다고 생각된다. Purpose : We analyzed the results of treatment for the nonunion of femur shaft fractures after interlocking intramedullary(IM) nail fixation. Materials and Methods : Thirty-three patients who underwent interlocking IM nailing due to femur shaft fractures from May, 1990 to July, 2000 and followed up for more than one year were evaluated retrospectively. Mean age at the time of operation was 40 year(Range, 19-68). 27 cases were men and 6 cases were women. By Weber and Brunner classification of the nonunion, hypervascular type were 10 cases(30%), avascular type 21cases(64%), mixed type 2 cases(6%). Infected type among the avascular type of noumion were 5 cases(23%). Results were evaluated with bone union by treatment methods and complications. Results : According to the causes and types of nonunion, we performed IM nail exchange in seven cases, IM nail exchange and bone grafting in eleven cases, external fixation in five cases, compression plating and bone grafting in three cases, and only cancellous bone grafting in seven cases. Radiographical union was achieved in 19weeks, 17 weeks, 20 weeks, 16 weeks and 15 weeks respectively. There’s no statistically significant difference between treatment methods. There are no cases of nonunion, malunion and infection. Conclusion : The selection of appropriate treatment method by the cause and type of each nonunion is very important to achieve the bony union in the treatment for the nonunion of femur shaft fractures after interlocking intramedullary nailing.

소아 대퇴 근위부 골절의 치료결과

정성택,이근배,윤택림,문은선,송은규 全南大醫大 2001 전남의대학술지 Vol.37 No.1

냉각면이 있는 정방형내 이종유체의 저온거동에 관한 실험적 연구

전승배,장원택,김병철 朝鮮大學校 機械技術硏究所 2007 機械技術硏究 Vol.10 No.1

Two stratified fluids (water and spindle oil) in aspect ratio of 1 to 1 were studied experimentally with the variation of an initial temperature and a cooling surface temperature in the square cavity with a lower cooling surface. With the initial temperature being varied, a cooling surface temperature were varied. With supercooling phenomenon being processed, a latent heat was emitted. The temperature of the spindle oil was increased with the occurrence of the latent heat. In case of initial temperature was low. the supercooling phenomena were observed and continued up to the end of experimental.

재발 또는 불응성 비호즈킨 림프종 환자에서 CDME 구제항암화학요법 후 고용량 항암화학요법 및 자가말초혈액 조혈모세포이식의 효과

김세형,한강원,배상병,김찬규,이남수,이규택,박성규,원종호,홍대식,박희숙 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.1

Background and objectives : The long-term survival in patients with non-Hodgkin's lymphoma (NHL) after conventional dose chemotherapy is about 35% and the rest of the patients tend to have relapse. So, in relapsed or refractory NHL, we compared the outcome of patients undergoing high-dose chemotherapy with autologous peripheral blood stem cell transplantation(APBSCT) with only salvage chemotherapy of cisplatin, dexamethasone, mitoxantrone, and etoposide(CDME). Materials and methods : From June 1993 to December 1999, 25 patients with relapsed or resistant NHL were treated with CDME regimen as salvage chemotherapy. Twelve patients were received four cycles of CDME chemotherapy, and 13 patients were received high-dose chemotherapy with APBSCT following two cycles of CDME chemotherapy. Results : The median follow-up duration was 12.8 months(range:4-68). The overall response rate was 41.7% (complete response rate 25%, partial response rate 16.7%) in 12 patients with CDME only. Thirteen patients who were treated with high-dose chemotherapy with APBSCT achieved 61.5% complete response rate and 15.4% partial response rate, with an overall response rate of 76.9%. The estimated 3-year progression-free survival rate was significantly higher among patients who received high-dose therapy than patients who received CDME only(41.5% vs 20.0%, p<0.05). And, 3-year overall survival rate was significantly higher among patients who received high-dose therapy(51.3% vs 25.0%, p <0.05). Conclusions : In relapsed or refractory NHL, CDME chemotherapy is an effective salvage chemotherapy and allow peripheral blood stem cell collection. Also, high-dose chemotherapy with APBSCT following CDME is superior to CDME salvage chemotherapy only.

흉선종 제거후에 발생한 재생 불량성 빈혈 : 증례보고

전원선,이상철,김현정,배상병,김찬규,이남수,박노진,이규택,박성규,홍대식,박희숙,원종호 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.2

Thymoma is associated with myasthenia gravis, Pure red cell aplasia, and autoimmune diseases such as autoimmune hemolytic anemia, aplastic anemia, and hypogammaglobulinemia. It's association with aplastic anemia is rare and aplastic anemia appearing after surgical removal of thymoma is especially rare. The authors hereby report a case of aplastic anemia occuring in a patient who was diagnosed with thymoma and myasthenia gravis and had the tumor surgically removed. The patient was treated with anti-thymocyte globulin, cyclosporin, and prednisolone, and showed partial remission with hematologic improvements after 12 months.

쇄골 중간부 골절후 불유합 및 지연 유합의 원인

윤정로,심재익,김택선,이성종,김영배,김학준,안국환,장재영,홍명표 대한골절학회 2002 대한골절학회지 Vol.15 No.4

쇄골 중간 1/3 부위의 골절은 치료 결과가 양호하여 보존적 치료가 원칙적으로 받아 들어지고 잇으며 불유합에 대한 빈도도 낮은 것으로 되어 있다. 그러나 최근 전위 및 단축의 정도가 심할 경우 높은 불유합의 결과와 불량한 임상 결과를 보고하고 있어 이런 예에 대해선 수술적 치료를 권장하고 있다. 저자들은 단축 및 전위의 정도와 불유합의 연관성을 알아보고자 하였다. 연구 대상 및 방법 : 1993년 2월부터 2002년 1월까지 본원에 내원 했던 성인 중간부 쇄골 골절 환자 194명 중 완전 전위를 보인 78례를 조사하여 이중 63례를 대상으로 분석하여 후 향적 연구를 시행하였다. 4개월 추시 후에도 방사성 사진상 유합 소견이 관찰되지 않으면 불유합의 유의성을 알아보고자 하였다. 결 과 : 63례 중 불유합 및 지연 유합을 소견을 보인 환자는 15(23%)례였다. 골유합을 보인 48례의 단축은 평균 8.6㎜(2㎜-17㎜)였고, 전위는 평균 9.7㎜(2-22㎜)였다 .불유합 및 지연 유합을 보였던 15례에서 단축은 평균 14.5㎜(3㎜-37㎜), 전위는 평균 17.3㎜(4-25㎜)였다. 18㎜이상 단축이 있었던 경우 불유합의 발생과는 통계학적으로 유의성을 나타내었고(Fisher's exact test, p<0.01), Chi-square test상 16㎜ 이상의 전위를 보였던 경우 불유합 발생과 통계학적으로 의미가 있었다(p<0.01). 결 론 : 쇄골 골절 특히 중간 1/3의 골절은 비교적 보존적 치료에 결과가 좋은 것으로 되어 있으나, 전위 및 단축이 심한 경우 불유합에 대한 가능성이 높이 때문에 보다 경과 관찰시 유합의 진행이 없으면 적극적인 치료를 고려해야한다. Purpose : Because the prognosis of the mid 1.3 clavicle fracture is good, the conservative treatment with a figure of 8 bandage is the gold standard and the nonunions are rare. However, recently surgical treatment is recommended when the shortening and displacement is severe because of the high nonunion rate and the poor clinical result. This study was undertaken to evaluate that the shortening and displacement at fracture site are associated with the development of nonunion. Materials and Methods : We analysed the 194 fractures of mid 1/3 clavicle in adults which had been treated conservatively from February 1993 to January 2002 and did the retrospective study. Of these, 78 cases were originally in the middle third of the clavicle and had been completely displaced. We reviewed 63 of these cases. The shortening and displacement at the fracture site was measured on the initial roentgenogram. And the analysis of the patients' chart was done for another predisposing nonunion factors. Nonunion and delayed union are considered to be present when there has been little or no progression of clinical or radiographic healing at a minimum of 4 months after injury. Results : 15 of the 63 cases had developed nonunion.. The average 8.6㎜(2㎜-17㎜) shortening and average 9.7㎜(2-22㎜) in the union patients. The average 14.5㎜(3㎜-37㎜) shortening and average 17.3㎜(4-25㎜) in the nonunion patients. We found that initial shortening ≥18㎜(Fisher's exact test, p<0.01) and initial displacement ≥ 16㎜(Chi-square test. p<0.01)at the fracture site were significantly associated with the development of nonunion. Conclusion : The conservative treatment with figure-80-bandage is the gold standard in the clavicle middle one third fracture. However, the nonunion is commonly occurs in the cases of more of severely shortened and displaced fractures. If there are no signs of callus formation and the patient complains of pain after several week, osteosynthesis should be considered.

포괄수가지불제도 적용에 따른 산부인과 진료수입의 변화

황태연,유병철,정귀언,정수진,김성준,배기택,손혜숙,이종태,전진호,엄상화 인제대학교 2001 仁濟醫學 Vol.22 No.1

Objectives: Under the fee-for-service system, Korean hospitals have been suffering from the worsening profitability caused by law medical care fees. To overcome the difficulties, they have maximized the quantity of medical services and made relatively large investment in developing new medical services using high-priced medical equipment, medicines and medical supplies which were not covered by medical insurance system rather than reduced running costs. Materials and Methods: This study was made to analyze and forecast the revenue change of the department of Obstetrics and gynecology of an university hospital in Seoul, expecting the implementation of DRG system in 2000. Results: The results were as follows : 1.During the first two days of hospitalization. 41% of total medical service fee was occurred, which was thought that most of the check-ups and operations were made during this period. After two days of hospitalization, the new occurrence of medical service fee tended to reduce. 2.Out of total medical service fee, 67% of admission fee was occurred after 5 days of hospitalization. This was because medical service fees in obstetrics and gynecology department occurred during the first 5 days of hospitalization. 3.Out of fees for operation, treatment, medical supplies and blood transfusion. 71% was occurred during the first two days. 4. In case of fees for examination, 50% was occurred during the first two days. 5.A total of 53% of fees for medication and injection was occurred during the first 5 days. Conclusions: By the implementation of the DRG system, the income is forecast to increase by 800 won to 310,000 won by the disease group of obstetrics and gynecology department. To increase hospital income with the implementation of DRG system, the results of this study suggest that examinations should be done at out-patient departments before the hospitalization of patient, the discharge of patient should be noticed in advance to reduce the period of hospitalization, and admission appointment system should be implemented for the immediate operation and delivery.