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구연 / 제 4 회의장 / 간 12 : 원발성 간세포암에서 분화도에 따른 E - cadherin 과 β - catenin 발현양상 연구
배시현(S . H . Bae),정은선(E . S . Chung),박영민(Y . M . Park),박태욱(T . W . Park),변병훈(B . H . Byun),윤승규(S . K . Yoon),차상복(S . B . Cha),정규원(K . Y . Chung),선희식(H . S . Sun),박두호(D . H . Park),김부성(B . S . Kim) 대한소화기학회 1999 대한소화기학회 추계학술대회 Vol.1999 No.-
SnO<sub>2</sub>센서의 ZnO 첨가량에 따른 di(propylene glycol) methylether (DPGME)에 대한 반응 특성
차건영,백원우,윤기열,이상태,최낙진,이덕동,허증수,Cha G. Y,Baek W. W,Yun K. Y,Lee S. T,Choi N. J,Lee D. D,Huh J. S 한국재료학회 2004 한국재료학회지 Vol.14 No.3
Respectively the powder made of ZnO added $SnO_2$ was prepared by coprecipitation method and the thick film gas sensor was fabricated by screen-printing technique, The morphology and phase of the powder and film was investigated by SEM and XRD. The specific area of the particle was linearly increased with ZnO contents. Target gas was di(propylene glycol) methylether ($CH_3$($OC_3$$H_{6}$ )$_2$OH, DPGME), which is simulant gas of blister gas. The gas sensing characteristics for DPGME were examined with flow type measurement system and the concentrations of target gas were controlled from 500 ppb to 1500 ppb. ZnO (2 wt%) added $SnO_2$ showed maximum sensitivity to DPGME at $300^{\circ}C$.
높은 전계강도에서 자기적 특성이 측정 가능한 장비 개발
차현록(H.R Cha),김경수(K.S Kim),이성호(S.H Lee) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.10
In this paper, we designed the new magnetic properties tester to measure the core loss in high magnetic field strength conditions. The results of measuring showed us the accuracy of new magnetic properties tester which we designed and it could measure in high magnetic field conditions about 15000 A/m. The results would provide useful information for applications and successfully applied in the design of electromagnetic fields.