• 제목/요약/키워드: electrophoretic

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Advances in E Ink Electronic Paper Display Technology and Applications

  • McCreary, Michael D.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.497-497
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    • 2009
  • The acceptance of electrophoretic display technology as an important alternative to both paper publishing and conventional display readers has now been proven by both the diversity and quantity of new products on the market. The current E Ink display performance as well as the recent advances in this technology will be discussed.

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Properties of $Al_{2}O_{3}-SiO_{2}$ Films prepared with Metal Alkoxides

  • Soh, Dea-Wha;Park, Sung-Jai;Korobova E. Natalya
    • Journal of information and communication convergence engineering
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    • 제1권3호
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    • pp.133-138
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    • 2003
  • The preparation of $Al_{2}O_{3}-SiO_{2}$ thin films from less than one micron to several tens of microns in thickness had been prepared from metal alkoxide sols. Two methods, dip-withdrawal and electrophoretic deposition, were employed for thin films and sheets formation. The requirements to be satisfied by the solution for preparing uniform and strong films and by the factors affecting thickness and other properties of the films were examined. For the preparation of thin, continuous $Al_{2}O_{3}-SiO_{2}$ films, therefore, metal-organic-derived precursor solutions contained Si and Al in a chemically polymerized form has been developed and produced in a clear liquid state. In the process of applying to substrates, this liquid left a transparent, continuous film that could be converted to crystalline $Al_{2}O_{3}-SiO_{2}$ upon heating to $1000^{\circ}C$. And, a significant change of the film density took place in the crystallization process, thus leading to the strict requirements as to the film thickness, which could survive crystallization.

전착법에 의한 음극지지형 SOFC 전해질막 제조 (Preparation of Electrolyte Film for Solid Oxide Fuel Cells by Electrophoretic Deposition)

  • 김상우;이병호;손용배;송휴섭
    • 마이크로전자및패키징학회지
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    • 제6권1호
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    • pp.23-29
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    • 1999
  • 전착법(EPD)에 의한 음극지지형 SOFC 단전지용 전해질 제조를 위하여 NiO-YSZ 다공성 기판 위에 극성이 서로 다른 전착용액을 사용하여 안정화 지르코니아 균일막 형성을 위한 전착조건과 막특성을 조사하였다. 알콜계 용액과는 달리 수계 용액에서 정전류, 0.138mA/$\textrm{cm}^2$이상에서 전극반응으로 생성한 기포에 의한 막결함이 생성하였으며 막무게 증가율이 감소하였다. 균일막 형성은 알콜계 용액에서 전극반응없이 안정한 전압특성을 보이는 정전류 0.035 mA/$\textrm{cm}^2$를 10초간 인가하였을 때 얻어졌다.

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전기영동에서 SDS가 음이온 계면활성제의 거동에 미치는 영향에 대한 고찰 (Study on the Effect of the SDS on the Behavior of Anionic Surfactants in Electrophoresis)

  • 이지은;이명석;정혁
    • 분석과학
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    • 제14권4호
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    • pp.356-363
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    • 2001
  • 절삭폐수의 여과수 등에 많이 포함된 음이온 계면활성제의 정성 및 정량분석을 위한 기초연구로 SDS를 포함하는 완충용액에서의 음이온 계면활성제들의 거동을 알아보고 최적의 분석조건을 찾기 위한 실험을 수행하였다. SDS 미셀과의 상호작용 결과, 탄소수가 10이상인 카르복실레이트 혹은 술포네이트계 계면활성제는 SDS의 농도가 증가함에 따라, 겉보기 이동도가 크게 변하였다. 겉보기 이동도, 전기삼투 이동도 그리고 전기영동 이동도를 계산하여 비교한 결과, 이러한 겉보기 이동도의 변화는 주로 전기영동 이동도의 변화의 영향임을 알 수 있는 근거를 제시하였다.

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탄소 나노튜브가 코팅된 은 메탈-메쉬 전극의 특성 (Characteristics of Silver Metal-mesh Electrodes Coated by Carbon Nanotubes)

  • 김부종;박종설;황영진;박진석
    • 반도체디스플레이기술학회지
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    • 제14권1호
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    • pp.55-59
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    • 2015
  • This study demonstrates hybrid-type transparent electrodes for touch screen panels. The hybrid-type electrodes were fabricated by coating carbon nanotubes (CNTs) on metal meshes. To form the metal-meshes, thin films of silver (Ag) were deposited on glass substrates using the sputtering method and then patterned via photolithography to obtain mesh structures whose line width was $10{\mu}m$ and line-to-line spacing was $300{\mu}m$. CNTs were coated on Ag-meshes by using two different methods, such as spray coating and electrophoretic deposition (EPD). For the samples of a Ag-meshes and CNTs-coated Ag-meshes, their surface morphologies, electrical sheet resistances, and visible-range transmittances and reflectances were characterized and compared. The experimental results indicated that the reflectance of Ag-mesh electrodes was substantially reduced by coating of CNTs. Especially, the hybrid electrodes of Ag-meshes with EPD-coated CNTs showed excellent properties such as sheet resistance lower than $20{\Omega}/{\Box}$, transmittance higher than 90 %, and reflectance lower than 8%.

전기영동법을 이용한 Glass Passivation막에 관한 연구 (A Study on the Glass passivation film by electrophoretic method)

  • 박인배;허창수
    • E2M - 전기 전자와 첨단 소재
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    • 제10권5호
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    • pp.473-480
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    • 1997
  • Surface passivation using glass powders results in good reliability for high voltage silicon power devices. In this paper Zinc borosilicate glass and Lead borosilicate glass were prepared for the purpose of passivating, and a deposition technique of glass films on the silicon surface by electrophoresis in which acetone is used as a suspension medium has been investigated. Their physical properties were compared using DTA, SEM, XRD, as a function of firing temperature, I can get the fine films of 22${\mu}{\textrm}{m}$ thickness with Lead borosilicate glass under 300 volts applied, 3 minutes and $700^{\circ}C$ firing temperature. Also I can get the fine films of 17${\mu}{\textrm}{m}$ thickness with Zinc borosilicate glass under same conditions. As a result of investigation of glass films from which glass layer was removed by placing it in HCl, it has been found that pre-firing and annealing play an important role to achieve uniform and fine glass deposition films. And also it was found that relative dielectric constant is independence of frequency.

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Cerebrospinal fluid analysis in 13 clinically healthy Beagle dogs; hematological, biochemical and electrophoretic findings

  • Kim, Il-Hwan;Jung, Dong-In;Yoo, Jong-Hyun;Kang, Byeong-Teck;Park, Chul;Park, Hee-Myung
    • 대한수의학회지
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    • 제48권1호
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    • pp.105-110
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    • 2008
  • The purpose of this study is to define the normal findings of cerebrospinal fluid (CSF) of the clinically healthy Beagle dogs and to provide basic information in diagnosis of neurologic disorders. CSF obtained from 13 clinically healthy dogs was examined for total and differential cell counts, total protein concentration, glucose and lactate dehydrogenase (LDH) concentration, specific gravity, turbidity, and protein electrophoresis. On gross examination, CSF samples evaluated were clear and colorless. Few red blood cells and nucleated cells were present. The mean concentration of glucose and LDH examined were 65.8 mg/dl and 2.7 mg/dl, respectively. The cellular components of CSF samples based on differential counts were monocytes (41.9%), activated macrophages (35.8%), lymphocytes (20.0%), neutrophils (1.6%), and eosinophils (0.7%). The fractions of electrophoretic protein in CSF were albumin (52.7%), alpha-globulin (16.5%), beta-globulin (24.8%), and gamma-globulin (3.0%). Results of albumin quota were ranged from 0.15 to 0.38. In conclusion, this study provided normal composition of CSF in Beagle dogs.

The Effect of NaCI Treatment on the Freezing Tolerance and Protein Patterns of Carrot Callus Suspension Culture

  • Moon, Soon-Ok;Park, Sook-Hee;Cho, Bong-Heuy
    • BMB Reports
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    • 제30권1호
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    • pp.21-25
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    • 1997
  • The growth. freezing resistance and electrophoretic protein patterns of carrot callus cultures were investigated following treatment with NaCl for various' intervals at 20$^{\circ}C$. Following 7 day exposure to 250 mM NaCl. freezing tolerance increased, which was measured by 2.3.5-triphenyl tetrazolium chloride (TTC) assay and fresh weight was reduced compared to control cells. Changes of electrophoretic patterns of total and boiling stable proteins were investigated using one or two dimensional gel system. Several proteins with molecular weight of 43 and 21 kDa increased by NaCl treatment. The most prominent change was detected in 21 kDa protein. The steady state level of this protein increased in NaCl treated cells, but decreased in control cells. Twenty one kDa protein was detected only in the NaCl treated cell when boiling stable protein was analyzed. The isoelectric point of 21 kDa protein was identified as 5.7. The timing of increase of 21 kDa protein was correlated to freezing resistance which implied the role of this protein in the induction of freezing resistance of the cell.

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