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순도를 달리한 알루미나 세라믹스의 분위기 압력변화에 따른 Tribology 특성
진동규,박흥식,서영백,옥철호,Jin, Dong-Gyu,Park, Heung-Sik,Seo, Yeong-Baek,Ok, Cheol-Ho 대한기계학회 2000 大韓機械學會論文集A Vol.24 No.2
This study was undertaken to investigate tribological characteristics with atmospheric pressure for three alumina ceramics of different purity, such as, 85 %, 95 % and 99.7 %. The wear test was carried out using the wear test device which was designed for this study in air, $10^-2$ Torr and $10^-4$ Torr. The friction coefficient depends entirely on atmospheric pressure and alumina with lower purity than higher purity has been much affected by heat accumulation. The friction surface of ceramics have been protected in the air by the influence of the oxides transferred from STB2. However, the protective layer can not be formed due to the decrease of oxygen in vacuum.
DNA probe를 이용한 비결핵항산균의 분리 및 폐질환자들의 임상적 특징
김희규 ( Hee Kyoo Kim ),김유리 ( Yu Ri Kim ),박정필 ( Jung Pil Park ),김낭희 ( Nang Hee Kim ),옥철호 ( Chul Ho Ok ),정만홍 ( Maan Hong Jung ),장태원 ( Tae Won Jang ),정석훈 ( Seok Hoon Jeong ),김철민 ( Cheol Min Kim ),박희경 ( Hee 대한결핵 및 호흡기학회 2005 Tuberculosis and Respiratory Diseases Vol.58 No.3
목적 : NTM질환이 과거에는 공중 건강에 치명적인 것으로 생각하지 않았다. 최근에 NTM이 높은 빈도로 발견되고 있고, 분리균의 임상적인 중요성도 커지고 있다. 본 연구는 부산의 한 삼차 의료기관에서 의뢰한 임상 검체에서 분리된 NTM의 균종 분포와 폐질환을 일으킨 균주의 임상적 특징에 대해 알아보고자 하였다. 대상 및 방법 : 2003년 3월부터 2003년 12월까지 10개월간 진단검사의학과 임상미생물검사실에 항산균 도말 및 배양 검사가 의뢰되어 도 Background : Nontuberculous mycobacterial (NTM) infections are increasingly being recognized as a cause of chronic pulmonary disease. This study describes the prevalence of NTM species from clinical specimens and the clinical characteristics of NTM pulmon
옥철호,김성후,이수창,송창석,최환준,차태준,유호대,주승재,이재우 고신대학교 의학부 1998 高神大學校 醫學部 論文集 Vol.13 No.1-2
저자들은 62세 여자 환자의 우측대둔부에서 발생한 월발성 편평상피암과 그 중심부 궤양을 통한 이차적인 파상풍 감염을 경험하였기에 문헌고찰과 이를 보고 하는 바이다. Primary skin cancers are the most common malignant tumors in the human. The incidence of primary skin cancers is rising steadily. The increasing incidence of primary skin cancers have been attributed to increasing exposure to sunlight, alteration of host defence factors and exposure to chemicals or viruses. The primary cutaneous squamous cell cancers (SCC) are prone to metastasis and rapid growth. However, early diagnosis is difficult, and with the delay of the diagnosis, serious complication may be resulted. SCC can develope skin ulceration and skin ulceration can be contaminated by various bacterial organisms. If skin ulceration contaminated by serious bacterial organism, it can be fatal to the patient. So early diagnosis of SCC is important for prevention of complication. Among the various organism, clostridium tetani can infect skin ulceration, and its manifestations are severe after infection. We experienced a case of tetanus developed from skin ulcer complicating primary cutaneous SCC on the right buttock in 62 years old woman. She manifested severe generalized body spasm, opistotonus, dyspnea, trismus, and convulsion, she was treated with muscle blocking agents and tetanus antitoxin. So we report one case of tetanus associated with cutaneous squamous cell cancer.