• Proceedings of the Zoological Society Korea Conference
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• 1995.10b
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• pp.167.2-167
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• 1995

• Journal of architectural history
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• v.30 no.4
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• pp.53-66
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• 2021

In the study of Buddhist architecture before the Goryeo Dynasty, the analysis of sectarian viewpoints is one of the effective means. In the study of Buddhist architecture before the Goryeo Dynasty, analyzing from the point of view of a Buddhism sect is one of the effective means. Until now, compared to the importance of the Beopsang school before the Goryeo period in the field of research on the history of Buddhist architecture, research on its temples was the least compared to those of other denominations. In this study, as one of the studies on Beopsang school temples, Geumsansa(金山寺), Beopjusa(法住寺), and Donghwasa(桐華寺), which were built as the Jinpyo's Beopsang school temple in the late 8th century and maintained until the Goryeo Dynasty, were targeted. And I tried a rudimentary analysis on the building composition of those temples from the viewpoint of the beliefs and teachings of Beopsang school. This study is meaningful in that it is the first attempted study in the field of architectural history on the Buddhist temple of the Beopsang school, which led non-Zen sects of Buddhism along with the Hwaeom school until the Goryeo Dynasty.

• KOMUNHWA
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• no.57
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• pp.145-155
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• 2001

The Volume 64 of Dongmunsun (東文選) compiled at the beginning of Yi Dynasty carries the document of the octagonal lantern shaped pavilion compiled by Chi-won Choi, a great scholar in the late Silla Kingdom. In this paper, I showed the entire document of the

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2001.11a
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• pp.213-214
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• 2001

대기오염 물질은 건성침착과 습성침착의 두 가지 과정에 의해 지표로 침착된다. 습성침착은 구름과 강수과정에 의해 지표로의 침착을 의미하며 건성침착은 오염물질이 직접 지표면에 침착되는 현상을 일컫는다. 본 연구에서는 경기도 이천시 설성면의 16 m 높이의 관측탑에 세 고도에서 관측된 농도 자료와 기상자료를 사용하여 경도법으로 SO$_2$의 건성침착속도를 산출하고 이의 안정도에 따른 특성을 분석하고자 한다. (중략)

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2004.07b
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• pp.806-808
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• 2004

본 연구에서는 MEMS 공정에 의해 제작된 실리콘 멤브레인 위에 스크린 프린팅법을 이용하여 압전 후막을 제작, 그 특성을 관찰하였다. 실리콘 웨이퍼의 후면을 각각 다른 4가지의 크기로 식각하여 멤브레인을 제작하였다. 제작된 멤브레인 위에 하부전극 Ag-Pd를 스크린 프린팅법으로 형성하고, 그 위에 압전 후막을 스크린 프린팅하여 열처리 하였다. 제작된 압전 후막위에 MFM(Metal-Ferroelectric-Metal)구조의 액츄에이터를 제작하기위해 상부전극으로 Pt를 스퍼터링으로 증착하였다. 제작된 마이크로 액츄에이터는 SEM(Scanning Electron Microscope)으로 구조분석하고, RT66A와 MTI2000으로 동작특성을 해석 하였다.

• Journal of architectural history
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• v.14 no.3 s.43
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• pp.77-88
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• 2005

This study is to find out the characteristics of the changes of the site layout in Beopjusa which was built on Maitreya faith in the Shilla.. According to the analysis of it in this study, we make conclusions as follows; 1) The reconstruction of Beopjusa means a start in Dhamalsama(法相宗) and then it was supposed to be Buddhist temple which was formed by intersecting axis of centering around a wooden pagoda(捌相殿) with a main Buddhist hall and a lecture hall. 2) After the middle of Koryo dynasty, Beopjusa was changed to building layout of intersecting with Yongwabojeon(龍華寶殿) and Daeungbojeon(大雄寶殿) because of harmony with Avatamsaka(華嚴宗) and Dhamalsama centering around Avatamsaka. 3) The buildings of Zen Buddhism was built in the early Chosun dynasty owing to a prevalence of Zen Buddhism in the late Koryo dynasty. And since 17th century, Buddhist halls were each built in their a faith system according to interpenetrated Buddhism(通佛敎). 4) The courtyard type of mountainous district was made on interpenetrated Buddhism. On the other hand, the site layout of Beopjusa is being maintained by centripetal spatial organization through the wooden pagoda as object.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2002.07a
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• pp.139-142
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• 2002

Characteristics of piezoelectric thick films prepared by screen printing were investigated. The piezoelectric thick films were fabricated using Pb(Al,Nb)O$_3$-Pb(Zr,Ti)O$_3$ system on Si-substrate. The fabricated thick films were burned out at 400$^{\circ}C$ and sintered at 850∼1000$^{\circ}C$ using rapid thermal annealing(RTA) precess. The thickness of piezoelectric thick films were 10$\mu\textrm{m}$. PAN-PZT thick film on Ag-Pd/SiO$_2$/Si prepared at 900$^{\circ}C$/1300sec had remanent polarization of 19.70 ${\mu}$C/$\textrm{cm}^2$.

• Korean Journal of Microbiology
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• v.35 no.1
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• pp.41-46
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• 1999

In detecting pathogeuic viruses in water sample, polymerase-chain-reaction (PCR) amplification was uscd. In order lo obtain the intact viral particlc, five concentration techniques were compared and an improved procedure was developed with some modifications. Among them, adsorption-elution~EG precipitation and flocculatio~~iultracentriEugation were more efficient than others with thc detection limit of 10 PFU $ml^{-1}$. By the additional step removing inhibitory compounds for PCR reaction, the purity of the concentrated sample was improved and the detection limit was lowered by one order (to 1 PFU $ml^{-1}$. To examine the availability of the optimized procedure for field surveys, the distributions of enterovirus in Han River were estimated using the novel procedure. Seventy-five percentage (618) of sewagc samples and twenty percentage (2110) of river water samples were positive for enterovirus. These results indicate that adsorption-elutionPEG precipitation by PCR method is useful for the prompt and handy monitoring of viral contaminaiton in water environment and pathogenic viruses are widely distributed in water environments of Seoul.

• Journal of the Korean Vacuum Society
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• v.15 no.6
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• pp.576-580
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• 2006

Mercury-free lamp, external electrode fluorescent lamp (EEFL) which includes the xenon gas, is now going on the research for the replacement of mercury lamp. The densities of excited xenon atom in the $1s_4$ resonance state and the $1s_5$ metastable state are investigated in the EEFL by a laser absorption spectroscopy under various gas pressures. We have measured the absorption signals for both $1s_4$ resonance and the $1s_5$ metastable state in the EEFL by varying the discharge currents for a given pressure. This basic absorption characteristic is very important for improvement of the VUV luminous efficiency of the EEFL as well as plasma display panel.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.13 no.11
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• pp.921-925
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• 2000

Characteristics of Pb(Mg, Nb)O$_3$-Pb(Zr, Ti)O$_3$system thick films fabricated by a screen printing method were investigated. The buffer layer were coated with various thickness of Ag-Pd by screen printing to investigate the effect as a diffusion barrier and deposited Pt as a electrode by sputtering on Ag-Pb layer. The printed thick films were burned out at 650$\^{C}$ and sintered at 950$\^{C}$ in O$_2$condition for each 20, 60min after printing with 350mesh screen. The thickness of piezoelectric thick film was 15∼20㎛ and Ag-Pb layer acted as a diffusion barrier above 3㎛ thickness. The PMN-PZT thick films were screen printed on Pt/Ag-Pb(6m) and sintered by 2nd step (650$\^{C}$/20min and 950$\^{C}$/1h) using paste mixed PMN-PZT and binder in the ratio of 70:30, and the remnant polarization of thick film was 9.1$\mu$C/㎠ in this conditions.