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박재일,강은영 한국섬유공학회 1985 한국섬유공학회지 Vol.22 No.6
Electrical conducting Poly(ethylene terephthalate)(PET)film was obtained by introducing Cu2-xS(0 x 0.2), which is known as p-type semiconductor, in the electrically insulating PET film. The cyano group was introduced into the PET film in order to accept Cu2-xS seim-conductor. Acrylonitrile having cyano group was utilized to carry out grafting on PET film using benzoyl peroxide as the initiator. Extent of grafting depended upon the reaction time, concentration of initiator, and the monomer as well as on the reaction temperature. It was also found that the optimum acrylonitrile concentration is 0.65mole/1. Acrylonitrile-grafted PET(AN-g-PET) film has a strong affinity for monovalent copperions. The PET film by graft polymerization with acrylonitrile is treated with copper compound, a reducing agent capable of reducing bivalent copper ions to monovalent copperions, and sulfur-containing compound so that the AN-g-PET film adsorbs monovalent copper ions and so that the adsorbed monovalent copper ions are converted into Cu2-xS. In the Cu2-xS-AN-g-PET film, vacant copper ion lattice points serve as the acceptor. The treated PET film had a metallic luster and its electrical resistivity was found to be 0.6$\times$103( -cm).
박재일,조길호,김미정 대한초음파의학회 2012 ULTRASONOGRAPHY Vol.31 No.3
Knee ultrasonography is a feasible and useful diagnostic method not only for the evaluation of periarticular soft tissues but also for intra-articular lesions and for the diagnosis of tumorous disease. Joint effusion, synovial thickening, intra-articular loose bodies, bursal and/or other fluid collection, ganglionic cysts, ligament and tendon injuries, tendinosis, osteomyelitis, and symptoms related to metallic hardware can be diagnosed using ultrasonography. 무릎질환의 초음파 검사는 힘줄, 근육, 인대, 초승달, 무릎 주변 연부조직의 외상 또는 관절질환의 평가뿐만 아니라, 종양 질환의 진단에도 이용가능하다. 관절액, 윤활막증식, 활액낭, 관절내 소체, 결절종물혹, 인대 및 힘줄 손상,힘줄염, 골수염, 금속물 삽입과 연관된 증상 등을 진단할수 있다.
2000년대 초에 유행한 Orientia tsutsugamushi에 의한 간염
박재일,한성희,조승철,조용현,홍상모,이학현,윤혜련,양선영,윤재훈,윤영섭,문지용,조경란,백상현,손주현,김태화,이동후 대한간학회 2003 Clinical and Molecular Hepatology(대한간학회지) Vol.9 No.3
Background/Aims: Orientia -tsutsugamushi infection is an acute febrile disease due to the accidental transmission through human skin of forest dwelling vector Leptotrombidium larva. The authors observed liver dysfunctions in patients diagnosed with tsutsugamushi disease (Scrub typhus) in the past 3 years and report the data in the hope of bringing attention to this disease in the differential diagnosis of autumn-season hepatitis, especially of non-A, non-B and non-C hepatitis. Methods: Medical records of 22 patients diagnosed with tsutsugamushi disease by the hemagglutinin method between October 2000 and November 2002 were reviewed. Results: Female gender was dominant in the ratio of 3.4:1. Mean age was 56.4±2.6. Admission was between 23rd September and 15th November with the peak between mid October and early November. Fever, being the most common symptom, was observed in 21 cases, myalgia in 13, arthralgia in 12, chills in 6, and skin rash in 6. An incubation period of 7-9 days was most common (10 cases), 13-15 days (4), 10-12 days (3), within 3 days (3), and 4-6 days (2). Average ALT, AST and GGTP were increased to 93.2±17.3 IU/L (18±345 IU/L), 92.5±11.7 IU/L (34-255 IU/L) and 132.2±14.5 IU/L (19-251 IU/L), respectively, but total bilirubin was normal. All the patients improved with doxycycline therapy. Conclusions: Since it usually shows liver dysfunction, it is important to take Orientia tsutsugamushi into consideration in differential diagnosis of autumn-season, febrile hepatic disease.(Korean J Hepatol 2003;9: 198-204) 목적: Orientia tsutsugamushi 감염은 삼림에 서식하는 매개충인 진드기(Leptotrombidium)의 유충이 우연히 사람의 피부를 통하여 전파되어 생기는 급성 발열 질환이다. 저자들은 지난 3년 동안 쯔쯔가무시병으로 진단된 환자들에서 간 기능 이상을 확인하고 가을철 간염환자의 감별진단 특히 non-A, non-B, non-C 간염의 진단에 주의를 환기하고자 관찰 결과를 보고하는 바이다. 대상과 방법: 한양대학교 서울병원과 구리병원에 2000년 10월부터 2002년 11월까지 hemagglutinin법으로 쯔쯔가무시병으로 진단된 환자 22명을 조사 대상으로 삼아 그 진료기록을 조사하였다. 결과: 남녀 비는 1:3.4로 여자가 많았다. 연령(범위 31-83세)은 56.4±2.6(평균±표준오차)세였다. 입원시기는 9월 23일부터 11월 15일 사이였고 10월 중순 이후 11월 상순 사이가 제일 많았다. 증상은 발열이 21예로 가장 많았고, 근육통 13예, 관절통 12예, 오한 6예, 피부발진 6예 순이었다. 잠복기는 7-9일이 10예로 가장 많았고 13-15일이 4예, 10-12일 3예, 3일 이내 3예, 4-6일 2예였다. ALT(범위 18-345 IU/L)는 93.2±17.3 IU/L(평균±표준오차)였고, AST(범위 34-255 IU/L)는 92.5±11.7 IU/L, GGTP (범위 19-251 IU/L)는 132.2±14.5 IU/L로 상승하였지만 혈중 총 빌리루빈은 정상이었다. 모든 환자들은 doxycycline 투여로 호전되었다. 결론: Orientia tsutsugamushi 감염은 대부분, 경도의 간 기능 이상을 동반하므로 특히 가을철 간 기능 이상을 보이는 열성 질환 환자에게서 다른 간 질환과 감별해야 할 질환으로 인지하는 것이 중요하다.