크론병에 대한 CoPPLX의 방어효과에 대한 연구

이호학,김유림,문창기,이재일,양병윤,김종수,이정민,정재혁,안석진,박상준,김윤권,김소연,김영중,조민구,최영자,장성조 圓光大學校 醫科學硏究所 2005 圓光醫科學 Vol.20 No.1

노령의 대퇴 전자간 골절 치료에서 압박고 나사못의 안정성 및 유용성

김종오,노권재,윤여헌,고영도,유재두,정준모,방한천,정재학 대한골절학회 2003 대한골절학회지 Vol.16 No.2

목 적: 노령의 대퇴 전자간 골절에서 압박고 나사못의 안정성에 영향을 주는 인자들간의 상관 관계와 골절 양상에 따른 술후 고관절 기능을 평가 및 분석하였다. 대상 및 방법: 압박고 나사를 이용하여 수술적 치료를 시행한 231명의 환자 중 6개월 이상 추시가 가능하였던 60세 이상 84명의 환자들을 대상으로 했다. 방사선적 계측은 압박고 나사못의 활강 길이 및 내반각, 가압 나사 위치, 정복 상태, 원위 골편의 내측 전위를 측정하였으며 술후 기능은 Clawson의 기능 평가표로 하였고 골절 양상에 따라 방사선 계측과 기능 회복과의 상관 관계를 평가하였다. 결 과: 임상 결과는 불안정 골절에서 양호가 10례, 불량이 23례, 안정 골절에서는 양호 40례, 불량이 11례로 안정 골절에서 임상 결과가 좋았고(p<0.001), 압박고 나사 활강은 10 ㎜ 이상일 때 양호가 4례, 불량이 21례, 10 ㎜ 이하에서 양호가 46례, 불량이 13례로 10 ㎜ 이상 활강시에 술후 결과가 불량했다(p<0.001). 다르 방사선적 계측 요인은 결과에 의미있는 차이를 보이지 않았다. 또한, 불안정 골절 중에서 전위 양상 골절의 경우 10㎜ 이상 활강이 12례, 10㎜ 이하 활강이 8례, 분쇄 양상 골절의 경우는 10㎜ 이상이 11례, 10㎜ 이하가 2례로 분쇄 양상의 불안정 골절에서 10㎜ 이상 활강이 의미있게 많았다 (p<0.001). 결 론: 10㎜ 이상의 지연 나사 활강은 고관절 기능 회복 약화를 유발시킬 수 있으며 불안정 골절 분쇄 양상 골절은 이런 지연 나사의 활강이 과도하게 유발될 수 있으므로 불안정 분쇄 양상 골절에서 압박고 나사의 단독 사용은 재고해 보아야 할 것이다. Purpose: To evaluate the relationship between fracture stability and functional results, and analyze the correlation between stability factors and the outcome in intertrochanteric fracture of the elderly. Materials and Methods: Of the 231 patients, 84 patients with age above 60 were able to follow up for minimum 6 months. We measured the sliding length of the lag screw, varus degree, position of lag screw, reduction status and medialization of distal fragment radiologically. The functional outcome of the treatment was evaluated with the Clawson's result classification and we evaluated the correlation between the radiological results of measurement and the functional recovery depending on the Evans fracture classification. Results: There were good results in 40 cases out of 51 stable fractures, and in 10 cases out of 33 unstable fractures (p<0.001). In case of sliding of lag screw more than 10㎜, good results were obtained in 4 cases, and poor in 21. And in case of sliding less than 10㎜, good results were obtained in 46, and poor in 13. (p<0.001).But there was no relationship between other radiologic factors and clinical results. In unstable type, there were 12 cases with lag screw sliding more than 10㎜ and 10 cases with less than 10㎜. In comminuted type, there were 11 cases with lag screw sliding more than 10㎜ and 2 cases with less than 10㎜(p<0.001). Conclusion: The sliding of lag screw more than 10㎜ may result in poor outcome. As in comminuted unstable pattern, sliding of lag screw might be excessive, the use of compression hip screw alone is not good treatment option.

다양한 방법을 이용한 유방축소술의 임상적 적용

김학수,이상원,정재호,설정현 大韓成形外科學會 2001 Archives of Plastic Surgery Vol.28 No.2

중소형 화학공장을 위한 다단 증류 분리 장치의 통합설계 Package 개발 연구

정재학,이기홍,곽철규,이문용 嶺南大學校 工業技術硏究所 2001 工業技術硏究所論文集 Vol.29 No.2

The purpose of this research is to develop the GUI environmental software package for efficient analysis of multi-component distillation column simulation. It should give the expediency of interpretation of complex data and saving time for generating the design of column by graphic display data analysis tool. Generating a column design result with conventional software package needs many trial-and-error simulation with consuming time works but the result of this research gives the optimal simulation result with just single graphic view. Furthermore, the developed package contains tools for dealing with various data and solving modules for several complex distillation column problems. The routines of physical property data included bubble-point, dew-point, density, entropy are also developed.

기관지석으로 발현한 기관지성 방선균증 1예

정숙인,천정학,홍종락,고영민,정만표,권오정,이종헌,백경란,송재훈 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

기관지성 방선균증은 매우 예외적이고 드물며 임상양상이 다양하여 폐암과의 감별이 어렵기도 하지만 기관지내시경 검사를 통해 진단할 수 있고 항생제 투여로 완치될 수 있는 질환이다. 저자들은 기관지석과 함께 발현한 기관지성 방선균증을 장기간의 경구 항생제 요법으로 완치한 1례를 경험하였기에 보고하는 바이다. Endobronchial actmomycosis is considered as an exceptional event. We report a case of a 49-year-old woman who presented with cough and exertional dyspnea for 20 months. Her chest X-ray showed calcified lymph nodes in the right lower paratracheal and subcarinal area and consolidation in the right middle lobe. Bronchoscopic examination demonstrated whitish broncholithiasis with mucosal nodularity in the bronchus intermedius obstructing the lumen near-completely. The biopsy specimen revealed sulfur granules and calcified material which were consistent with actmomycosis. Prolonged oral antibiotic treatment resulted in complete recovery, without need for surgical resection.

제초제(propanil. butachlor) 저항성 잡초 선발 방법에 관한 연구

정성엽,김영미,박재현,이재현,김학윤,이인중,신동현,김길웅 경북대학교 농업과학기술연구소 1999 慶北大農學誌 Vol.17 No.-

This study was conducted to develop a simple selection method for herbicide-resistance weeds. Two methods, designated "seedling method" and "stem node method" were employed for screening of barnyardgrass against propanil and butachlor. In the seedling method, shoot and root growth of barnyardgrass were significantly inhibited at quarter of the recommended herbicide rate, while in the stem node method, the similar inhibition was obtained at half of the recommended rate. Thus, it was concluded that the seedling method is more simple and quick method to evaluate response of barnyardgrass to propanil and butachlor compared to stem node method.

비부착 PS콘크리트 구조의 시간의존적 특성을 고려한 비선형 해석에 관한 연구

최정호;김운학;박재근 한경대학교 2008 論文集 Vol.40 No.-

This paper presents a comparative study on nonlinear analysis of the unbonded PSC structure considering time-dependent effect. For developing a finite element analysis program, an unbonded PS tendon model which can represent straight or curved unbonded tendon is proposed. The F.E. analysis program, named RCAHEST(Reinforced Concrete Analysis in Higher Evaluation System Technology), is used. Material nonlinearities of cracked concrete are taken into account by tension, compression, and shear models. And nonlinear material models for reinforcing and prestressing steels are included. These models work with models for time-dependent effect such as aging, creep and shrinkage of concrete and stress relaxation of prestressing tendon. The developed finite element analysis program is verified by comparison with reliable experimental results.

오수처리 시설용 원격 계측 및 제어 장치의 개발

이문용,정재학,곽철규 嶺南大學校 工業技術硏究所 2001 工業技術硏究所論文集 Vol.29 No.2

The research for development of remote monitoring and control system composed three stages of research categories. At the first stage, we decided the suitable instrumentation devices for interface between H/W systems and waste water treatment facility, and at the second stage. We developed the software package for remote monitoring system and data transmission system including data receipt system via wired telephone line. At the final stage we developed local control system for auto-process control of waste water treatment facilities. For the first stage of research we developed the a drawing of design the instrumentation and selected optimal sensors for monitoring basic important data. After the first stage research we developed the software package with Graphic User Interface with on-line real time data monitoring graphic view windows and data acquisition. Finally we developed the hardware, one-board microcomputer with CPU and suitable size of ram, and interface of modem. The developed system will be composed as a commercial product.

혈관과증식을 동반한 구개부 선방세포암의 치험례

김상중,심재환,박정훈,이원학,이정구 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.6

Vascular lesions of the oral and maxillofacial area is interesting to clinicians because it is difficult in management and has poor prognosis. There have been attempt to classify vascular lesion and recently new classification is introduced that have two basic entities, 1) hemangioma, 2) vascular malformation. It is useful that evaluation of lesion, treatment planning and predicting on prognosis. But vascular lesion is still difficult to clinicians about treatment. A case of acidic cell carcinoma combined with hypervascularity arising on the hard palate in a 28-year-old woman is reported. We mistook it for vascular lesion because of hypervascularity. The clinical and histologic feature are described. Literatures about neovascularization of tumor & acidic cell carcinoma are reviewd, too. And we attempt to solve the problem of hypervascularity.

3차원 적층패키지의 Cu-Cu 접합부의 정량적 접합강도 평가 및 향상에 관한 연구

장은정,김재원,Kim, Bioh,Thorsten Matthias,현승민,이학주,박영배 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

The quantitative interfacial adhesion energy of Cu-Cu direct thermo-compression specimen with bonding temperature and wet pre-treatment was measured by using 4 point bending test for 3-D IC integration. The evaluated interfacial adhesion energy was 2.79±0.82, 3.46±0.87, 4.93±0.2 J/㎡ bonding temperature 300, 350, 400℃ and 0.29, 1.28, 1.64, 1.17 and 0.43 J/㎡ acetic acid pre-treatment at 35℃ for 0, 1, 5, 10, and 15 min. From the result, 5 min treated Cu to Cu thermo-compression bonding has the highest interfacial adhesion energy at 350℃.