http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
박성우,홍성욱,유재훈,Park, Seong U,Hong, Seong Uk,Yu, Jae Hun Korean Chemical Society 1996 Bulletin of the Korean Chemical Society Vol.17 No.2
A continuous potential pulse is applied to a silver-working electrode on a pulsed amperometric detector (PAD) for detection of free cyanide and sulfide. The moving phase is 0.1 M sodium hydroxide, 0.5 M sodium acetate and 5% (v/v) ethylenediamine mixture, and the flow rate is 0.7 mL/min. Optimized pulse conditions include a -200 mV (vs. Ag/AgCl reference electrode) detection potential(Ed) for 60 msec and 50 mV cleaning potential (Ec) for 120 msec. The silver working electrode surface is not poisoned by cyanide or sulfide, and the PAD maintains long-term stability without loss of sensitivity and reproducibility at these pulse conditions. The detection limit of cyanide and sulfide separated by ion chromatography using an anion exchange column is 0.1 ppm and 0.05 ppm, respectively.
김새벽(Sai-Byuck Kim),유재훈(Jae-Hun Yu),송병권(Byeong-Kwon Song),정태의(Tae-Eui Jeong),김진철(Jin-Cheol Kim),김영억(Young-eok Kim) 한국정보과학회 2008 한국정보과학회 학술발표논문집 Vol.35 No.2
TETRA는 ETSI(European Telecommunications Standards Institute)가 지정한 디지털 주파수공용통신 기술이다. 현재 국가재난무선통신기술의 Digital TRS로 TETRA(Terrestrial Trunked Radio)가 채택되었다. 이러한 TETRA 네트워크를 이용하기 위해서는 TETRA 모델을 사용한다. 여러 TETRA 데이터 모뎀이 출시되고 있는 이 시점에서 TETRA 데이터 모뎀의 성능 측정이 절실한 상황이다. 이러한 성능 측정을 위해 데이터 전송 성능 측정 모듈을 이용한 성능 평가를 통해 해당 TETRA 모뎀의 성능을 알아낼 수 있다. TETRA 네트워크에서 데이터 전송방식은 UDP(User Datagram Protocol)를 이용하는 Packet 서비스와 SDS(Short Data Service) 방식이 있다. 본 논문에서는 UDP를 이용한 Packet 서비스를 호 발생 모듈을 통해 10바이트에서 500바이트까지 1000번의 전송 간 지연시간을 측정하고 지연시간 표준편차와 성공률을 측정하였다.
핀-핀 타입 전기-수력학 프린팅에서 패턴된 세라믹 잉크의 잔존 하전량이 직각 경로 패턴 안정성에 미치는 영향
김상윤(Sang-yoon Kim),유재훈(Jae-Hun Yu),박동호(Dongho Park),황정호(Jungho Hwang) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
Electrohydrodynamic(EHD) spraying has an available application on direct writing method for making a printable and flexible electronic circuit board. In this research, we formed 80~100 ㎛ lines on a PET (polyethylene terephthalate) sheet and found the instabilities of the patterns especially on the perpendicular path. For ensuring the stability of perpendicular path, we suggested a modified system that put a dielectric barrier between a nozzle and a sheet in the pin-to-pin type EHD spraying system. As a result, this modified system reduced repulsion force between the already pattered ceramic ink and the falling droplet near the nozzle. Using this modified system we minimized feature width to 13 μm, but we found the instabilities of the minimized pattern not only on the perpendicular path but also on the straight path. Experimental results showed that reducing repulsion force of remained charges of the ceramic ink that was patterned on the substrate was important for the high resolution patterning using EHD spraying.
증례 : 소화기 ; 당뇨병 환자에서 발생한 식도 방선균증 1예
구동영 ( Dong Yeong Gu ),노지훈 ( Ji Hun Roh ),임대관 ( Dae Gwan Lim ),조영화 ( Yeong Hwa Jo ),유재훈 ( Jae Hoon Yu ),윤준모 ( Jun Mo Yoon ),김기수 ( Gi Su Kim ) 대한내과학회 2012 대한내과학회지 Vol.82 No.5
A 47-year-old patient with diabetes mellitus was admitted with the complaints of sore throat and dysphagia. We performed an esophagogastroduodenoscopy and found esophageal ulcers. Histological examination of the esophageal biopsy revealed sulphur granules, and immunological findings ruled out viral infection. Thus, we diagnosed an isolated actinomycotic infection of the esophagus and treated the infection with oral amoxicillin. This case illustrates that actinomycotic infection of the esophagus can occur in immunocompetent patients. Therefore, when evaluating dysphagia, the probability of actinomycotic infection must be considered not only in immunocompromised patients, but in immunocompetent individualswith diabetes mellitus. (Korean J Med 2012;82:580-584)