• Title/Summary/Keyword: Science and Engineering

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Patterning of conducting polymer at micron- scale using a selective surface treatment

  • Lee, Kwang-Ho;Kim, Sang-Mook;Kim, Ki-Seok;Song, Sun-Sik;Kim, Eun-Uk;Jung, Hee-Soo;Kim, Jin-Ju;Jung, Gun-Young
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.834-836
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    • 2008
  • We demonstrated micro-scale conducting polymer patterning based on a selective surface treatment. A substrate with a patterned photoresist was immersed into OTS (Octadecyltrichlosilnae) solution. The protected substrate areas were hydrophilic after removing the PR resist, where a conducting polymer solution was coated selectively by spin-coating method.

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A Study on Engineering Education Model for Citizen - Focusing on the Connection Program Between Colleges of Science and Engineering and Science Museums - (시민을 위한 공학교육 모델 개발에 대한 연구 - 이공계 대학과 과학관의 연계 프로그램을 중심으로 -)

  • Han, Hyeontaek;Kim, Seunggyu;Park, Jongrae
    • Journal of Engineering Education Research
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    • v.25 no.3
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    • pp.11-25
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    • 2022
  • The purpose of this study is to propose a strategy model for engineering education for citizen through the connection between colleges of science and engineering and science museums as a way to achieve citizen science. For this model, the role of universities was redefined as social contributions through engineering education from the perspective of knowledge triangle and university entrepreneurship. In addition, the science museum was re-examined as an engineering education platform and selected as an institution that supports the contribution of colleges to society. For practical model development, the connection types of these two institutions were analyzed as case studies and interview to collect opinions from experts in the science museum. In this process, convergence education content development, reinforcement of college-science museum linkage, infrastructure construction, development of college resource utilization plans, and maintenance and expansion of educational programs diversification were derived as components for model development. Based on this, engineering education model for citizen was presented that matches educational programs according to the type of participation of colleges including key factors and considerations.

Discharge Characteristics of a Flat Plasma Backlight with Long Electrode Gap

  • Li, Q.;Luo, Y.;Zheng, Y.;Yang, L.;Cui, Y.;Liu, J.;Zhang, Z.;Tolner, H.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.795-798
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    • 2008
  • The discharge characteristics of a flat plasma backlight with long electrode gap are investigated. The effect of operating voltage and repetition rate on brightness and luminance efficiency is investigated. A new high efficacy mode is found at low frequencies around 15-40 KHz; a lumen efficacy of 15.3 lm/W is achieved at a luminance of $2400\;cd/m^2$. In the high brightness mode, present at high voltage, we find a maximum luminance of $5900\;cd/m^2$ at 30KHz.

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A Review of Structural Testing Methods for ASIC based AI Accelerators

  • Umair, Saeed;Irfan Ali, Tunio;Majid, Hussain;Fayaz Ahmed, Memon;Ayaz Ahmed, Hoshu;Ghulam, Hussain
    • International Journal of Computer Science & Network Security
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    • v.23 no.1
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    • pp.103-111
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    • 2023
  • Implementing conventional DFT solution for arrays of DNN accelerators having large number of processing elements (PEs), without considering architectural characteristics of PEs may incur overwhelming test overheads. Recent DFT based techniques have utilized the homogeneity and dataflow of arrays at PE-level and Core-level for obtaining reduction in; test pattern volume, test time, test power and ATPG runtime. This paper reviews these contemporary test solutions for ASIC based DNN accelerators. Mainly, the proposed test architectures, pattern application method with their objectives are reviewed. It is observed that exploitation of architectural characteristic such as homogeneity and dataflow of PEs/ arrays results in reduced test overheads.