• Transactions on Electrical and Electronic Materials
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• 제14권1호
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• pp.36-38
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• 2013

Eight sample panels using an indium tin oxide(ITO)-coated glass substrate were fabricated, with barrier ribs formed of 55 ${\mu}m$ height and 10 ${\mu}m$ width. The upper and lower substrates were designed with the same panel condition, so a cell gap of 110 ${\mu}m$ was obtained. The charged particles in a cell consisted of $TiO_2$ (for white color) or carbon black (black color), negative or positive charge control agents, and a polymer. The average diameter of the two types of particles was commonly 10 ${\mu}m$, and their q/m value was -4.5 ${\mu}C/g$ and +4.5 ${\mu}C/g$, respectively. The electrically opposite particles mixed by an agitator were loaded into their cells by a simple particle-loading method. The discharging process proceeded at a humidity of 80% and a temperature of $30^{\circ}C$. Reflectivity was measured depending on discharging time, and a hysteresis curve by bias voltage obtained for comparison between the neutralized and non-neutralized panel, in which the superior optical property of the neutralized panel was ascertained.

• 한국철도학회논문집
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• 제12권5호
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• pp.806-810
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• 2009

병원, 호텔 및 철도역사 등과 같은 대형의 건물 및 차량내부에 사용되는 공조 시스템은 일반적으로 높은 소음을 발생시킨다. 이러한 공조용 발생소음을 저감시키기 위해서 흡음재가 부착된 쳄버를 공기 시스템에 설치한다. 그러나 이러한 쳄버에 설치된 흡음재는 유리섬유 혹은 폴리우레탄 폼이 많이 사용되기 때문에 최근에는 환경적 문제를 야기한다. 이러한 문제를 해결하기 위해서 환경친화적인 다공판 시스템이 내장된 소음쳄버를 개발하였다. 이 소음쳄버는 기존의 소음쳄버에 비해서 중고주파수 영역에서 통일한 소음저감 성능을 나타내지만, 200Hz~400Hz 영역에서는 최고 8dB(A)까지 소음저감 효과가 있다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2000년도 하계학술대회 논문집
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• pp.340-343
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• 2000

ITO(Indium Tin Oxide) films for transparent electrodes of FPD(Flat Panel Display) were patterned in atmosphere using laser. A pulse type(repetition rate of 10 Hz) Q-switched Nd:YAG laser which can generate the fundamental wavelength at 1064 nm or its harmonics(532, 266 nm) was used for Patterning of the ITO film. In case of using the second harmonic(532 nm) of Nd:YAG laser, the ITO film(thickness of 20 nm) was removed clearly with a laser fluence of 5.2 J/$\textrm{cm}^2$ and a beam scan speed of 200${\mu}{\textrm}{m}$/s. But the glass substrate was damaged when the laser fluence was over 5.2 J/$\textrm{cm}^2$. We discussed the etching mechanism of the ITO film using Nd:YAG laser with observation of the etching characteristics including a depths and widths of ITO films as a function of laser fluence using SEM(Scanning Electron Microscopy) and surface profiler($\alpha$-step 500).

• 대한핵의학회지
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• 제8권1_2호
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• pp.63-70
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• 1974

이 논문(論文)은 1973년(年) ICSH주최로 옅린 panel에서 혈소판수명(血小板壽命) 측정법(測定法)의 표준화(標準化)에 관(關)한 토론결과(討論結果)를 기록(技錄)한 것이다. 이 prnel에서는 주(主)로 혈소판수명측정(血小板壽命測定)의 기술적(技術的)인 면(面)과 분석적(分析的)인 면(面)을 토론(討論)하고 있다. 현소판(血小板)에 방사성(放射性) 물질(物質)의 표지법(標識法)으로는 "Cohor"법(法)과 "Random"표지법(標識法)이 있으며 전자(前者)는 분석적(分析的)인 면(面)에서는 "Random" 표지법(標識法) 보다 좋으나 현재로서는 표지법(標識法)으로서 만족하지는 않다. "Random"표지법(標識法)으로는 $^{14}C$-serotonime, DEP, $^{32}P,\;^3H$와 $^{51}Cr$ 등(等)이 이용(利用)되고 있다. DEP는 현재 널리 사용되고 있으나 DEP는 주입후(注入後) 2주(週)까지 방사능(放射能)이 처음의 $10{\sim}15%$정도(程度)가 계속 남아있고 또한 혈소판이외(血小板以外)에도 백혈구(白血球), 적혈구등(赤血球等)에도 상당히 많이 표지(標識)되므로 혈소판(血小板)만 따로 분리(分離)해야 되는 단점이 있어서 이 panel에서는 사용하지 않는 것이 좋다고 하였다. 반면 $^{51}Cr$은 기술적(技術的)인 문제(問題)가 이미 많이 해결되어 있어 추천하고 있다. 여기서는 혈소판수명(血小板壽命) 측정법(測定法)에서 혈소판분리(血小板分離) 및 표지(標識), 채혈(採血) 및 계측(計測), data 분석법등(分析法等)에 관(關)하여 논(論)하고 있다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 가을 학술논문 발표대회
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• pp.154-155
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• 2021

Appearance finish is important for amorphous buildings to maximize amorphousness, and GFRC, glass, and metal are mostly used as exterior materials for amorphous buildings currently applied. However, the existing exterior materials showed limitations in amorphous expression, texture, and color expression. In this study, a 3D stereoscopic panel mold was manufactured using the FDM method, one of the 3D printing technologies, and 3D stereoscopic panel production was reviewed using Ultra High Performance Concrete (UHPC), which has excellent physical and mechanical performance and expression. In order to overcome the limitations of unstructured expression, a UHPC 3D stereoscopic panel using the FDM method, one of the 3D printing technologies, was manufactured. Unlike steel molds, FRP molds, and EPS molds, the FDM method can be applied to various materials, and complex shapes are implemented. If it is used using recyclable materials as well as PLA filaments used in the FDM method, it will overcome the limitations of amorphous expression and activate the production of 3D stereoscopic panels that have secured eco-friendliness.

• 인포메이션 디스플레이
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• 제5권1호
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• pp.25-30
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• 2004

Poly-Si TFT(Thin Film Transistor) technology are reviewed and discussed. Poly-Si TFTs fabricated on glass using low-temperature process were studied extensively for the application to LCD (Liquid Crystal Display) as well as to OLED(Organic Light Emitting Diode) Display. Currently, one of the application targets of the poly-Si TFT is emphasized on the highly functional SOG(System on Glass). Improvement of device characteristics such as an enhancement of carrier mobility has been studied intensively by enlarging the grain size. Reduction of the voltage and shrinkage of the device size are the trend of AM FPD(Active Matrix Flat Panel Display) as well as of Si LSI, which will arise a peculiar issue of uniformity for the device performance. Some approaches such as nucleation control of the grain seed or lateral grain growth have been tried, so far.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.1565-1567
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• 2004

Various defects are found in FPD (Flat Panel Display) manufacturing process. So detecting these defects early and reprocessing them is an important factor that reduces the cost of production. In this paper, the bare glass inspection system for the FPD which is the early process inspection system in the FPD manufacturing process is designed and implemented using the high performance and accuracy CCD line scan camera. For the preprocessing of the high speed line image data, the Image Processing Part (IPP) is designed and implemented using high performance DSP (Digital signal Processor), FIFO (First in First out), FPGA (Field Programmable Gate Array) and the Data Management and System Control part are implemented using ARM (Advanced RISC Machine) processor to control many IPP and cameras and to provide remote users with processed data. For evaluating implemented system, experiment environment which has an area camera for reviewing and moving shelf is made.

• 한국정밀공학회지
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• 제20권1호
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• pp.126-134
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• 2003

In this study, we suggest a environmentally-conscious and dry cleaning process mechanism for the more useful recycling of end-of-life CRT, and also develop a prototype cleaning system to verify the faulty of the designed mechanism. This system accommodates the specifications of 14∼32" end-of-life CRT. In experimental result, it is expected that the developed system improve the productivity up to 10% and decrease the loss rate of cleaning glass 3∼4 times than the glass blasting methods.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년 학술대회 논문집 정보 및 제어부문
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• pp.579-581
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• 2006

Flat panel image display devices such as TFT LCD and PDP have required more large area and high quality control components. To control the qualities of the components, measurements of the flatness of a plate glass has been required. In order to measure the shape of the specular objects, Non-Contact Optical Sensor using Hologram laser unit was proposed. The sensor has a optical system that is composed of a Hologram laser and objective lens. The temperature of the sensor body is controlled by TEC(Thermoelectric Cooler) to maintain the same wavelength of the diode laser. In this research, we proposed the calibration scheme to make sensor real time measuring sensor. From the experimental results we see that the proposed sensor unit can measure the position of the glass surface in rial time.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2001년도 International Meeting on Information Display
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• pp.9-12
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• 2001

With the explosive growth of Note-PC and Desktop monitor market, TFT LCD market confronted a entire supply shortage during 1999. Forecasting a more booming stage for the next several years, many TFT-LCD panel manufacturers continue to expand the capacity of their existing plants and also make an additional investment in building new plants. The new investment is concentrated on the $4^{th}$ generation TFT LCD line in order to improve investment efficiency. The set up of the Samsung's Gen 3.5 line progressed with satisfactorily performance using $600{\times}720mm$ glass size. We have continuously reviewed several issues regarding the glass size for our next Gen. 4 line, which leads to adopt $730{\times}920mm$. Due to the continuous enlargement of a substrate size and following difficulty in transferring cassettes, the next line is expected to be the last line that employs "cassette transfer". The layout of the next line will shift from conventional "concentration-type" to "separation-type" configuration for the purpose of reducing transfer distance as well as transfer time. The details will be discussed in this paper.