http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Ru/$RuO_2$ 금속/산화물 이중전극 위에 증착한 PZT 박막의 전기적 특성
정규원,박영,송준태,Jeong, Kyu-Won,Park, Young,Song, Joon-Tae 한국전기전자재료학회 2001 전기전자재료학회논문지 Vol.14 No.4
PZT thin films (3500$\AA$) have been prepard on the Ru/Ru $O_2$ and Ru $O_2$ bottom electrodes with a RF magnetron sputtering system using P $b_{1.05}$(Z $r_{0.52}$, $Ti_{0.48}$) $O_3$ ceramic target. Ru/Ru $O_2$ bottom electrode was fabricated by in-situ processing controlled the $O_2$ partial pressure. The PZT thin films deposited on the Ru/Ru $O_2$ bottom electrode were preferred oriented (101) plane. The PZT thin films deposited on the Ru/Ru $O_2$ bottom electrodes showed better electrical properties than those with Ru $O_2$ bottom electrodes because Ru $O_2$ prevented oxygen vacancies and impurities from existing withing the interface and substrate.e.
정규원,안계운,Jeong, Kyu-Won,Ahn, Kye-Un 한국생산제조학회 2010 한국생산제조학회지 Vol.26 No.1
Automotive industry is a major business area in this country and it becomes more and more important. In order to maintain high quality of vehicles, every parts should be inspected. Among them the inspection job of the knuckle bracket holes of the outer tube of shock-absorber has been done manually until now. So, it takes long time and every product can not be inspected. An automatized inspection system was proposed utilizing machine vision technology, which was composed of a slit beam laser, CCD camera, image processing computer, special jig and illuminating back lights. An algorithm which could process images of the laser and bracket holes, then gave the position, radius, roundness of the holes, was developed. This system was applied for the good and no good products and the performance was confirmed.
유리기판위에 증착한 50% Pb-excess PZT박막의 전기적특성
정규원,박영,주필연,박기엽,송준태,Jeong, Kyu-Won,Park, Young,Ju, Pil-Yeon,Park, Ki-Yup,Song, Joon-Tae 한국전기전자재료학회 2001 전기전자재료학회논문지 Vol.14 No.5
PZT thin films (3500${\AA}$) ahve been prepared onto Pt/Ti/corning glass (1737) substrates with a RF magnetron sputtering system using Pb$\sub$1.50/(Zr$\sub$0.52/,Ti$\sub$0.48)O$_3$ ceramic target. We used two-step annealing techniques, PZT thin films were grown at a 300$^{\circ}C$ substrate temperature and then subjected to an RTA treatment. In case of 500$^{\circ}C$ RTA temperature show pyrochlore phase. The formation of Perovskite phase started above 600$^{\circ}C$ and PZT thin films generated (101) preferred orientation. As the RTA time and temperature increased, crystallization of PZT films were enhanced. The PZT capacitors fabricated at 650$^{\circ}C$ for 10 minutes RTA treatment showed remanent polarization 30 ${\mu}$C/$\textrm{cm}^2$, saturation polarization 42${\mu}$C/$\textrm{cm}^2$, coercive field 110kV/cm, leakage current density 2.83x10$\^$-7/A/$\textrm{cm}^2$, remanent polarization were decreased by 30% after 10$\^$9/ cycles.
정규원(Kyu Won Chung),선희식(Hee Sik Sun),정인식(In Sik Chung),양진모(Jin Mo Yang),심상인(Sang In Shim),최명규(Myung Gyu Choi),한현복(Hyun Bok Han),정홍량(Hong Ryang Jeong),이재학(Jae Hak Lee),강창석(Chang Suck Kang) 대한소화기학회 1990 대한소화기학회지 Vol.22 No.3
Recent advent of non-surgical treatment for gallstones desires accurate in vivo analysis of chemical composition to select optimal candidate. As preliminary work, we undertook in vitro CT examimation of the surgically removed 53 gallstones and compared CT pattern with chemical compsotion. Those results were correlated with in vitro lithotripsy of the gallstones. The CT appearances were classified as follows: Laminated (43%), dense (32%), rimmed (11%), isodense (8%) and faint (6%). Dense pattern contains high calcium content. As CT density increased, calcium content increased, but cholesterol content decreased proportionslly. The number of shock waves to breakdown the gallstone ]ess than 2 mm in size, has increased as stone volume and cholesterol content increases but did not have any correlation with calcium content level. As a result, the CT exmination is very sensitive to detect small amount of calcium content in gallstones and CT pattern and density of the gallstones are well correlated with chemical compsotion and therefore in vivo CT exmination for ESWL candidate is desirable.
정규원(Kyu Won Chung),선희식(Hee Sik Sun),정진우(Jin Woo Jeong),심규식(Kyu Sik Shim),채현석(Hyun Suk Chae),강숙영(Sook Young Kang),한석원(Sun Won Han),박영민(Yong Min Park),주상용(Sang Yong Ju),심상인(Sang In Shim) 대한소화기학회 1987 대한소화기학회지 Vol.19 No.2
Chronic pancreatitis is mainly caused by chronic alcohol abuse and increases in incidence. The disease is characterized as epigastric pain radiating to back which is precipitated by alcohol inges- tion, and there may be nausea, vomiting, constipation, and mild jaundice with dark urine. The complications of chronic pancreatitis are diabetes mellitus, steatorrhea, pancreatic calcifica- tion, biliary obstruction, pseudocyst, peptic ulcer, abscess, carcinoma of pancreas, ascites and GI bleeding, etc. Since Riedel reported the case of common bile duct obstruction in chronic pancreatitis in 1892, there have been reported allmost 100 cases of common bile duct obstruction in pancreatitis. We report 2 cases of common bile duct obstruction caused by chronic pancreatitis without above complications.