• 한국재료학회지
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• 제28권12호
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• pp.714-718
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• 2018

Anti-reflection thin films are fabricated on glass substrates using the screen printing method. Tetra ethyl silicate(TEOS) and methyl tri methoxy silane(MTMS) are used as starting materials and buthyl carbitol acetate(BCA) and buthyl cellusolve(BC) are mixed to improve the viscosity of the solution. Anti-reflection thin films are fabricated according to the number of the screen mesh and the characteristics improve as the mesh size increases. The transmittance and reflectance of the coated thin film using 325 mesh are about 94 % and 0.43 % in the visible wavelength. The thickness and refractive index of the AR thin film are 107 nm and n = 1.26, respectively.

• 대한방사선과학회:학술대회논문집
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• 대한방사선과학회 2002년도 학술대회 발표초록
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• pp.29.1-29.1
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• 2002

• 한국결정성장학회:학술대회논문집
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• 한국결정성장학회 1998년도 PROCEEDINGS OF THE 15TH KACG TECHNICAL MEETING-PACIFIC RIM 3 SATELLITE SYMPOSIUM SESSION 4, HOTEL HYUNDAI, KYONGJU, SEPTEMBER 20-23, 1998
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• pp.65-70
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• 1998

Fine powders of $\alpha$-Fe2O3 were prepared by precipitation method using iron (III) nitrate in ethanol solvent and the thick film using this powder was made by the screen printing technology. Effects of the reaction temperature and concentration of the iron (III) nitrate on the particle size and specific surface area were studied. Also, the relationship between the powder size and properties of the thick film was discussed.

• 한국게임학회 논문지
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• 제16권5호
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• pp.99-110
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• 2016

본 논문은 개발자가 의도한 화면을 다양한 해상도의 모바일 기기에서 동일한 비율의 게임 화면 출력을 지원하기 위한 적응적 방법을 제안한다. 원하는 비율로 게임 화면의 일부만 출력하는 방식을 클리핑(clipping) 기법이라 하며 업계에서 기존에 쓰고 있는 기법이다. 다양한 해상도에 대응하기 위해 개발자들은 의도하는 게임 화면을 해상도에 따라 다양하게 제작해야하기 때문에 추가적인 개발 비용이 발생하게 된다. 그러나 하나의 설정 화면비율과 사용하는 기기의 화면 비율과의 관계에 맞춰 자동으로 배율을 계산하여 출력을 해준다면 개발시간을 절감할 것이다. 본 연구의 제안 알고리즘을 이용하면 다양한 해상도에서 게임제작화면을 자동으로 동일한 비율로 디스플레이가 가능하며 또한 모바일 기기의 해상도에 상관없이 미니맵이 자동 고정되도록 출력하는 것도 지원 가능하다.

• 한국인쇄학회지
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• 제28권1호
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• pp.15-24
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• 2010

Photovoltaic solar cells are all in the incident because they are not converted into electrical energy, high-efficiency solar cells in order to reduce the loss of elements must be. Significant factor in the loss of solar cells, optical loss and electrical loss can be divided into. Optical losses occur when the sun will be joined on the surface of the reflection, the shadow loss due to electrodes, and the losses are in the solar wavelengths. Commercialization is currently the most common solar cells on the front of the light incident on the electrode is formed. Therefore, the shadow caused by the electrode to cover the dead area of the sun, due to factors that hinder the absorption of sunlight which is shadowing them and conversion efficiency of solar cells is the inhibition factor. These barriers to eliminate the electrode linewidth reduces the shadowing to reduce, but simply of the electrode line width is reduced electrode area by reducing the series resistance elevates this because to improve the electrode Aspect ratio(height/width) to increase Ag development of paste is required. In this study, aspect ratio of screen-printing method to increase the electrode Ag paste composition of the binder for the characterization of rheology in the shadow of the electrode by reducing the optical loss of the photoelectric conversion efficiency of solar cells to boost the performance measures was. Properties and printability of the paste, the binder resin sintered characteristics that affect the thermal properties are excellent with a good screen printability acrylic resin, ethyl cellulose, using a resin were evaluated. Prepared paste rheology properties, was formed to evaluate the electrode conductivity and aspect ratio.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2009년도 춘계학술대회 논문집
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• pp.111-113
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• 2009

This paper shows that you can achieve high quality N+ emitter layers using a screen printable phosphorous diffusion paste and firing in an infrared belt furnace. Spreading resistance measurement from a beveled sample is used to measure carrier concentration as a function of depth for different phosphorous concentrations. Contours of estimated sheet resistance are shown for different processing conditions. This paper describes newly developed low cost phosphorous pastes. It shows the characterization of the newly developed phosphorous paste (DP99-038). This low cost pastes can easily be printed and make 16% efficiency.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.716-718
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• 2009

The effects of the temporal dark image sticking phenomena on bright screen were investigated with various He, Ne contents and a high Xe content fixed at 11% in the 50-in. ac-PDPs. In this work, the disappearance time and the display luminance between the before and after discharge in the discharge and non-discharge regions were measured with 0%, 35%, and 50% He contents. Consequently, the temporal dark image sticking on bright screen was reduced with the increase of He contents compared with the non-He (0%) content.

• 대한전자공학회논문지SD
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• 제45권4호
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• pp.72-77
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• 2008

본 논문에서는 Embedded resistor 적용을 위한 오개닉 기판 위에 캐버티(Cavity) 공정에 의해서 형성된 균일한 두께를 갖는 저항체의 제조 방법과 저항편차에 대해서 조사했다. 기존의 스크린 프린팅에 의해서 발생하는 PCB의 위치에 따른 저항값의 편차를 개선하기 위하여 캐버티 공정을 소개했다. 원하는 모양과 부피를 갖는 저항은 스크린 프린팅과 페이스트를 이용하여 cavity 공정에 의해 정확하게 형성되어 졌다. 이 방법은 PCB의 생산 공정시간을 줄일 수 있고, 스크린 프린팅의 정밀도에 의한 큰 영향 없이 빠르게 공정 조건을 배치할 수 있으므로써 생산량을 개선시킬 수 있다.

• Journal of Information Processing Systems
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• 제14권6호
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• pp.1420-1430
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• 2018

To build a successful information system, design and development should be carried out from the enterprise perspective. A complicated business is represented in various ways as technology advances, and many development methodologies have been studied from the viewpoint of technology and development. Each domain is independently designed and developed from the enterprise perspective, but there would be inclusive parts due to the integrated process wherein the definition, design, and development of business are carried out, and the design is done based on the designer's experience. This study would like to address the technique of designing screens based on the business process of the applications derived from the business. It designs the screens that appear when actual applications are completed, including how the data transfer process in the derived business process is represented and operated on the relevant screens. It designs the screen which is displayed when the actual application is completed and how the data transfer process in the derived business process is represented and operated on the relevant screen. In addition, it designs the DFD representing the overall flow of data for each business to represent the movement procedure between screens in general. Through the design method proposed in this study, the client's requirement could be confirmed to reduce the cost for redevelopment, the problem of communication between designers and developers with various experiences could be reduced, and an efficient design procedure could be provided to persons who lack design experience.

• 정보과학회지
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• 제30권4호
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• pp.36-41
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• 2012