• 한국자기학회:학술대회 개요집
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• 한국자기학회 2007년도 The 1st International Symposium on Advanced Magnetic Materials
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• pp.260.1-260.1
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• 2007

• 한국정보통신학회논문지
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• 제10권9호
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• pp.1527-1537
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• 2006

유비쿼터스 컴퓨팅 환경에서 서버가 다양한 유형의 단말기에 대해 각각의 장치에 적합한 콘텐츠를 효과적으로 제공하기 위해서는 단말기 정보 및 관련 상황정보를 알고 있어야 한다. CC/PP 표준 스펙은 하드웨어, 소프트웨어, 네트워크, 사용자 취향정보 등을 기술하고 전송하기 위한 규약으로서, RDF을 이용하여 단말기 프로파일 정보를 기술한다. 한편, WAP 포럼에서는 클라이언트가 이러한 CC/PP 프로파일 정보를 스스로 서버에게 전송할 수 있도록 하기 위한 프로토콜로서 W-HTTP 프로토콜을 정의하였다. 하지만 기존의 HTTP 프로토콜을 이용하는 클라이언트의 경우 CC/PP 프로파일 정보를 서버에게 제공하지 못하는 문제가 발생 한다. 본 논문에서는 W-HTTP 프로토콜 클라이언트뿐만 아니라 HTTP 프로토콜을 이용하는 클라이언트에 대해서도 CC/PP 프로파일을 생성하여 서버에게 제공하기 위한 미들웨어 시스템을 설계하고 구현한다.

• 한국인쇄학회지
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• 제22권2호
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• pp.163-178
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• 2004

In this study, the CIE RGB color space which was one of the most popular device-dependent application program in digital image processing was adopted to make the profile with the device information. The profile was applied to the digital image of a JPEG file format. The result was compared with the color reproduction of another digital image of a JPEG file format, which was made in the e-sRGB color space that had the color spaces allocated to each reproduced color of an image and device-independent colors. In this way it was investigated which color space was more appropriate for digital image processing for web printing and if the e-sRGB color space was good as a color management tool that didn't depend on a device in processing a digital image for web printing.

• 대한기계학회논문집A
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• 제20권4호
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• pp.1202-1215
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• 1996

In this study, in order to achieve the uniformity of mechanical properties and microstructures of a hot-rolled coil in the transversal direction, the edge mask device is newly device is newly developed and installed at the upper laminar-flow cooling head in the run out table, which controls the transversal temperature of strip with enco panel and bar edge heater. The device that is transversally movable prevents the temperature drop of strip edge by blocking the cooling water into the strip edge. So, the pattern of edge mask set-up condition of the device was derived by analyzing the characteristics of strip temperature and mechanical properties according to the on-line application of edge mask.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2004년도 학술대회지
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• pp.801-803
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• 2004

The current drive in an MOSFET is limited by the intrinsic channel resistance. All the other parasitic elements in a device structure playa significant role and degrade the device performance. These other resistances need to be less than $10{\%}-20{\%}$ of the channel resistance. To achieve the requirements, we should investigate the methodology of separation and quantification of those resistances. In this paper, we developed the extraction method of resistances using calibrated TCAD simulation. The resistance of the extension region is also partially determined by the formation of a surface accumulation region that forms under the gate in the tail region of the extension profile. This resistance is strongly affected by the abruptness of the extension profile because the steeper the profile is, the shorter this accumulation region will be.

• KIEE International Transactions on Electrophysics and Applications
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• 제5C권2호
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• pp.49-53
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• 2005

The current drive in a MOSFET is limited by the intrinsic channel resistance. All other parasitic elements in a device structure perform significant functions leading to degradation in the device performance. These other resistances must be less than 10$\%$-20$\%$ of the channel resistance. To meet the necessary requirements, the methodology of separation and quantification of those resistances should be investigated. In this paper, we developed an extraction method for the resistances using calibrated TCAD simulation. The resistance of the extension region is also partially determined by the formation of a surface accumulation region that gathers below the gate in the tail region of the extension profile. This resistance is strongly affected by the abruptness of the extension profile because the steeper the profile is, the shorter this accumulation region will be.

• 한국정밀공학회지
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• 제21권1호
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• pp.167-172
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• 2004

A method for the design of a disk cam with a remote follower is presented. ADAMS software is utilized for the design process. The whole process is applied for the design of a cam profile to be used in a tappet shedding device of a shuttle loom. First the desired motion of the remote follower, the hearld frame in this case, is determined to improve the characteristic of a certain weaving process. Next, the desired displacement data is input to the ADAMS software and the cam profile is obtained as an output. To test the validity of the proposed method, designed cams were actually manufactured and implemented on a experimental loom. And with the help of potentiometer type displacement transducers, the motion of the remote followers were actually recorded. And the result was sufficient to prove the validity of the presented method.

• JSTS:Journal of Semiconductor Technology and Science
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• 제11권1호
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• pp.40-50
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• 2011

A two-dimensional (2D) analytical model for the potential distribution and threshold voltage of short-channel ion-implanted GaAs MESFETs operating in the sub-threshold regime has been presented. A double-integrable Gaussian-like function has been assumed as the doping distribution profile in the vertical direction of the channel. The Schottky gate has been assumed to be semi-transparent through which optical radiation is coupled into the device. The 2D potential distribution in the channel of the short-channel device has been obtained by solving the 2D Poisson's equation by using suitable boundary conditions. The effects of excess carrier generation due to the incident optical radiation in channel region have been included in the Poisson's equation to study the optical effects on the device. The potential function has been utilized to model the threshold voltage of the device under dark and illuminated conditions. The proposed model has been verified by comparing the theoretically predicted results with simulated data obtained by using the commercially available $ATLAS^{TM}$ 2D device simulator.

• 한국융합학회논문지
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• 제11권7호
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• pp.1-7
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• 2020

모바일 디바이스의 성능이 급격히 향상됨에 따라 사용자는 많은 작업을 모바일 환경에서 할 수 있게 되었다. 이는 모바일 디바이스에 저장된 행태 정보를 활용하면 사용자의 많은 부분을 알 수 있음을 의미한다. 예를 들어, 사용자의 문자 메시지와 자주 사용하는 어플리케이션 정보(행태 정보)를 활용하여 사용자가 육아에 관심이 있는지와 같은 유용한 정보(프로파일 예측)를 만들 수 있다. 본 연구에서는 모바일 디바이스에서 수집할 수 있는 사용자의 행태 정보를 알아보고, 이를 활용하여 사용자를 프로파일링 할 수 있는 항목을 제안한다. 그리고 프로파일링 결과를 활용하여 사용자에게 편의를 줄 수 있는 정보로 활용할 수 있는 방안도 함께 제시한다.

• 한국인쇄학회지
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• 제25권1호
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• pp.121-133
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• 2007

The CMS(color management system) software was to enable consistent color reproduction from original to reproduction. The CMS was to create RGB monitor and printer characterization profiles and then use the profiles for device independent color transformation. The implemented CMM(color management module) used the CIELAB color space for the profile connection. Various monitor characterization model was evaluated for proper color transformation. To construct output device profile, SLI(sequential linear interpolation) method was used for the color conversion from CMYK device color to device independent CIELAB color space and tetrahedral interpolation method was used for backward transformation. UCR(under color removal) based black generation algorithm was used to construct CIELAB to CMYK LUT(lookup table). When transforming the CIE Lab colour space to CMYK, it was possible to involve the gray revision method regularized in the brightness into colour transformation process and optimize the colour transformation by black generation method based on UCR technique. For soft copy colour proofing, evaluating several monitor specialism methods showed that LUT algorithm was useful. And it was possible to simplify colour gamut mapping by constructing both the look-up table and the colour gamut mapping algorithm to a reference table.