• Title/Summary/Keyword: high K

Search Result 125,637, Processing Time 0.104 seconds

An Analysis of Impacts of the Admission Officer System in High School Education (학생부종합전형에 따른 고교 교육의 변화 분석)

  • HEO, Jung-Eun;WON, Hyo-Heon
    • Journal of Fisheries and Marine Sciences Education
    • /
    • v.27 no.3
    • /
    • pp.804-812
    • /
    • 2015
  • The purpose of this study was to analyze the perception of a high school teacher on Admission Officer System. The subjects were limited to 324 high school teachers of Busan, Ulsan, and Gyeongsangnam-do regions. The major research question for the study was how are the perceptions of high school teachers about the Admission Officer System. The main results were as follows: first, high school teachers showed high understanding of the admissions overall. Second, high school teachers with counseling experience about applying to colleges considered the score of the College Scholastic Ability Test less important. Third, high school teachers have recognized that there is a distance between high school education activities and the Admission Officer System. Eliciting sympathy from the high school teachers for the Admission Officer System is a very important task. Negative perceptions of high school teachers on the Admission Officer System is still remained. The cooperation between leading universities and high schools would help the Admission Officer System work with its original purpose or goal.

High-efficiency BIRA for embedded memories with a high repair rate and low area overhead

  • Lee, Joo-Hwan;Park, Ki-Hyun;Kang, Sung-Ho
    • JSTS:Journal of Semiconductor Technology and Science
    • /
    • v.12 no.3
    • /
    • pp.266-269
    • /
    • 2012
  • High-efficiency built-in redundancy analysis (BIRA) is presented. The proposed BIRA uses three techniques to achieve a high repair rate using spare mapping registers with adjustable fault tags to reduce area overhead. Simulation results show that the proposed BIRA is a reasonable solution for embedded memories.

Ignition Behavior of Single Coal Particles From Different Coal Ranks at High Heating Rate Condition

  • Lee, Dongfang;Kim, Ryang Gyoon;Jeon, Chung-Hwan
    • 한국연소학회:학술대회논문집
    • /
    • 2012.11a
    • /
    • pp.111-114
    • /
    • 2012
  • The ignition behavior of single coal particles of five kindes of coal with different ranks (low volatile bituminous, low volatile sub-bituminous, high volatile bituminous, lignite) with particle size of $150-200{\mu}m$ was investigated at high heating rate condition. Particles were injected into a laminar flow reactor and the ignition behavior was observed with high speed cinematography. Sub-bituminous were observed to ignite homogeneously; however, low volatile bituminous coal and lignite undergo fragmentation prior to igntion. The observation was analyzed with previous work.

  • PDF

Design Considerations for Concrete High-Rise Buildings

  • Chung, Kwangryang;Park, Chulho;Kim, Dohun
    • International Journal of High-Rise Buildings
    • /
    • v.5 no.3
    • /
    • pp.187-193
    • /
    • 2016
  • Busan's Haeundae Resort project, which is currently being constructed by POSCO E&C, comprises the 101-story Landmark Tower and two 85-story residential towers. Presently, foundation and basement construction is complete, with a final completion date set for 2019. Considerations about the construction and design of the three reinforced concrete high-rise buildings will be discussed in this paper.

Development of High Luminance Plasma Display Panels

  • Choi, Kwang-Yeol;Yoo, Eun-Ho;Ryu, Jae-Hwa
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2003.07a
    • /
    • pp.343-346
    • /
    • 2003
  • High Luminance PDPs have been developed using high efficient electrode structure, discharge gas and fishbone type barrier ribs. New phosphors for the good picture quality were developed. Also, New manufacturing processes such as CPBB were applied in order to reduce processing steps. High Luminance of 1,000 $cd/m^2$ was obtained in the series of 42 inch, 50 inch and 60 inch PDPs.

  • PDF

A study on the reliability test of Symmetric high voltage MOSFET under the extended source/drain length (Symmetric high voltage MOSFET의 extended source/drain 길이에 따른 전기적 특성의 고온영역 신뢰성 분석)

  • 임동주;최인철;노태문;구용서
    • Proceedings of the IEEK Conference
    • /
    • 2003.11c
    • /
    • pp.309-312
    • /
    • 2003
  • In this study, the electrical characteristic of Symmetric high voltage MOSFET (SHVMOSFET) for display driver IC were investigated. Measurement data are taken over range of temperature (300K-400K) and various extended drain length. In high temperature condition(>400K), drain current decreased over 20%, and specific on-resistance increased over 30% in comparison with room temperature.

  • PDF

High Efficiency Active Clamp Forward Converter with Synchronous Switch Controlled ZVS Operation (동기 스위치 제어를 통한 영전압 동작 고효율 능동 클램프 포워드 컨버터)

  • Lee, Sung-Sae;Cho, Seong-Wook;Moon, Gun-Woo
    • Proceedings of the KIPE Conference
    • /
    • 2005.07a
    • /
    • pp.266-268
    • /
    • 2005
  • A new synchronous switch controlled transient current build-up zero voltage switching (TCB-ZVS) forward converter is proposed. The proposed converter is suitable for the low-voltage and high-current applications. The features of the proposed converter are low conduction loss of magnetizing current, no additional circuit for the ZVS operation, high efficiency, high power density and low EMI noise throughout all load conditions.

  • PDF

High resolution 3D display using time-multiplexed overlapped projection

  • Baasantseren, Ganbat;Park, Jae-Hyeung;Kim, Nam
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2009.10a
    • /
    • pp.1338-1340
    • /
    • 2009
  • High resolution three-dimensional integral imaging display is proposed. Each time-multiplexed image is projected with different incident angle on same array of elemental lenses. Those images are collected at different positions in focal plane of lens array, and thus the number of the point light sources increases and their spacing decreases. Therefore, proposed method can create high resolution 3D images.

  • PDF

Configuration of Driver's Desk System for Korea High Speed Railways (고속전철용 Driver's Desk 시스템 구성)

  • Jeon, J.W.;Lee, J.H.;Kim, Y.J.
    • Proceedings of the KIEE Conference
    • /
    • 1999.07a
    • /
    • pp.483-485
    • /
    • 1999
  • Recently, distributed control network system has been widely applied to on-board control system than conventional relay logic with control wire. This paper presents two configuration of driver's desk system using TCN(Train Communication Network). One is configured with TCN, the other is partial adoption of TCN.

  • PDF