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서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.
홍경한,전상신,이승재,박찬수,권일욱,김재열,김병철,하옥남 한국공작기계학회 2004 한국생산제조학회지 Vol.13 No.4
Fin-tube type(Fin-type) heat exchanger has been tested in order to replace the heat exchanger of parallel flow type(P.F-type) which is now widly used in automobile air conditioning system. The following conclusions are drawn by the comparison of the characteristics of the heat exchangers. Evaporator and condenser capacities and COP(Coefficience of performance) were varied as with the compressor speed, outdoor air temperature and air flow rate changed, which much influenced on the characteristics of the air conditioning system. Evaporator and condenser capacities were increased with increasing compressor speed and outdoor air temperature. Evaporator and condenser pressures of Fin- type were decreased by 7% and 5% respectively compared with those of P.F-type. The COP of Fin-type was decreased with increasing outdoor air temperature and compressor speed. The COP of P.F-type was decreased by 14% compared with that of Fin-type.
홍성철,오재욱,김수신,백세민,B.CELLIKOZ 大韓成形外科學會 1990 Archives of Plastic Surgery Vol.17 No.6
Ankylosis of the mandible is a serious and most disabling condition. Impairment of speech, difficulty with mastication, poor oral hygience, facial asymmetiry, and mandibular micrognathia invariably result in much physical and psychologic disability, particularly in young children with complete inability to open the mouth. We performed a one stage reconstruction of temporomandibular joint at the same time as performing multiple additional oateotomies to correct the facial asymmetiry. Temporomandibular joint was reconstructed with costchondral graft or interpositional arthroplasty with silastic implant. Breakdown of 36 cases is as follows. 1. Most prevelent incidence is at age of 21-30 revealed no sex predilection. 2. Trauma was the most common cause, found in 8 patients. 3. Average preoperative mouth opening was 21mm and postroperative mouth opening was 39.8mm 27 patients with interincisor lengh greater than 30mm resumed a satisfactory life style with no discomfort. 4. Anethesia was done by fiberoptic nasotracheal intubation in 31 patients. 5. Postroperative complication included infection in 3 patients which was treated with local and systemic antibiotic therapy. 1 patient developed transient lower lip hypoesthesia.1 patient complained remained facial asymmetiry, which was corrected by fat injection. 6. In 20 patients simultaneous total correction of temporomandibular joint ankylosis and facial asymmetry were done.
장재혁,송치원,심병용,이동건,변재호,정정임,이교영,홍영선,신완식,김춘추,이경식 대한감염학회 2003 감염과 화학요법 Vol.35 No.3
저자들은 비호지킨씨 림프종 환자에서 항암 치료 후 질환의 진행성 병변과 감별을 요했던 우폐 중엽의 단발성 종괴를 흉강경하 생검으로 폐 효모균증을 확진하고 amphotericin B와 fluconazole로 치료한 1례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Non-Hodgkin's lymphoma is monoclonal expansion of malignant B or T cells. The immunocompromised status in this disease is accompanied by many infections. The cryptococcosis, caused by Cryptococcus neoformans, frequently occurs in leukemia, Hodgkin's disease, sarcoidosis, diabetes mellitus, tuberculosis, and long-term steroid-using patients. Recent increasing incidence of fungal infection could be due to the spread of AIDS and transplantation. We experienced one patient with lung mass in Non-Hodgkin's lymphoma after three cycles of chemotherapy, which could not be discriminated from the newly developed lymphoma mass. Cryptococcus neoformans was isolated from the lung tissue obtained by thoracoscopic biopsy. Herein we report this case with brief review of pertinent literature.
유재복,부준홍,유상신 한국항공대학교 1995 論文集 Vol.33 No.-
본 연구에서는 실험적 관찰을 통하여 2상 열이송루프의 성능을 평가하였다. 상변화를 수행하는 작동유채의 관점에서 실험장치는 열을 받아 작동유체가 증발하는 증발부, 열이송이 이루어지는 단열부, 그리고 대기중에 방열하는 응축부로 구성된다. 2상 열이송루프는 증발부와 응축부의 거리를 멀리할 수 있는특징을 가지고 있는데 본 실험적 연구에서는 증발부와 응축부 사이의 거리를 1.2m로 하였다. 2상 열이송루프의 성능을 평가하기 위하여 시스템의 열저항을 증발부 온도와 대기 온도의 차를 증발부에 가해준 열부하로 나누어준 값을 정의하였다. 시스템의 열저항은 열부하의 증가에 따가 급격히 감소하는 경향을 나타내며, 열부하가 적을때는 작동유체량의 증가에 따라 열저항이 증가하지만 열부하가 크게 증가하면 열저항은 작동유체량의 영향을 거의 받지 않는다. In the present study, characteristics of a two-thermal transport loop are evaluated by the experimental investigation. Expermental setup is primarily composed of three parts: an evaporator where a working fluid is evaporated by heating or heat absorption, a thermal transport section that connects the evaporator and the condenser and a condenser which works as a thermal dissipator. One of advantages of the two-phase thermal transport loop is that the evaporator and condenser can be located separately far away. The distance between the evaporator and the condenser is about 1.2m in the present study. In order to evaluate the performance of the two-phase thermal transport loop the system thermal resistance is defined as the quotient of temperature difference between the evaporator and the ambient temperatures by the heat supplied to the evaporator. The system thermal resistance decreases rapidly as the heat load increases. The system thermal resistance increasesas the quantity of working fluid increases for the low range of the heat load, but the thermal resistance is slightly dependent upon the quantity of working fluid as the heat load increases.
열간 단조용 금형강 SKD61의 열처리에 따르는 기계적 성질의 변화
이찬규,최영선,윤재홍,조대현,신희권 國立 昌原大學校 産業技術硏究所 1997 産技硏論文集 Vol.11 No.-
The best heat treatment conditions for improving mechanical properties was invastigated about effecting of solution treatment and tempering temperature in various condition of SKD61. The mechanical property of SKD61 has been studied by tensile, hardness and sharphy test, and observation microstructure.
이홍재(Hong Jae Lee),강석구(Seok Gu Kang),이태규(Tae Gyu Lee),이관성(Kwan sung Lee),전신수(Sin soo Jeun),이상원(Sang Won Lee),홍용길(Yong Gil Hong),박춘근(Chun kun Park),김문찬(Moon Chan Kim) 대한두개저학회 2007 대한두개저학회지 Vol.2 No.1
During recent years it has been demonstrated that subgroups of brain stem glioma may be associated with a better prognosis than others. We investigated some correlations between the pathological findings and radiologic (magnetic resonance imaging, computed tomography) imaging appearance of 13 brain stem gliomas, which were able to follow up over 1 year. The growth patterns of brain stem glioma was observed retrospectively. 8 cases were low grade gliomas and 5 cases were high grade gliomas that included three definite diffuse brain stem gliomas in magnetic resonance imagings even though these tumors were not confirmed by pathologist. Superior and dorsal exophytic growth patterns was observed in low grade brain stem glioma and multidirectional growth patterns in high grade brain stem glioma. According to this observation, growth of low grade brain stem glioma has stereotypical growth pattern by barrier and high grade glioma was unhindered by barrier. Growth patterns of brain stem glioma will help to assess the histological grade and establish the therapeutic plan.
이홍재(Hong Jae Lee),이태규(Tae Gyu Lee),이관성(Kwan sung Lee),전신수(Sin soo Jeun),이상원(Sang Won Lee),홍용길(Yong Gil Hong),박춘근(Chun kun Park),김문찬(Moon Chan Kim),선동일(Dong Il Sun),김민식(Min Sik Kim) 대한두개저학회 2007 대한두개저학회지 Vol.2 No.1
Surgical treatment of neoplasms involving the anterior skull base is a relatively recent developing procedure and is on the border of the domains of neurosurgery as well as head and neck surgery. This report presents the result of 13 patients with primary tumors of the anterior skull base treated by craniofacial resection during a 5-year period. Their ages ranged from 5 to 69 years, with a mean age of 48 years. The most common type of tumor was squamous cell carcinoma (4 patients), followed by malignant meningioma (2), squamous cell papilloma (2), olfactory neuroblastoma (1), neurofibroma (1), malignant fibrohistiocytosis (1), ossifying fibroma (1), and chondrosarcoma (1). Postoperative complications were noted in five cases after surgery. The complications were a cerebrospinal fluid leak in 3 patients, and infection in 2 patients; none resulted in any neurological deficit. Malignancies involving the skull base can be successfully resected with surgical margin using a craniofacial approach, with minimum operative mortality and morbidity.