• Title/Summary/Keyword: Kwon Shin Eung

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Study on production of visionary drawings with 『Oksogo(玉所稿)』 (『옥소고(玉所稿)』 소재(所載) 몽화(夢畵)의 제작(製作)에 대한 연구(硏究))

  • Choi, Ho-suk
    • Journal of Korean Historical Folklife
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    • no.28
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    • pp.113-142
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    • 2008
  • The purpose of this script is to understand general issues related to production of visionary drawing and correct the fault of previous research by examining the data on visionary drawing featured on Ok So Kwon-Seop's anthology, "Oksogo(玉所稿)" the summary of its contents are as follows. First by analyzing the status of visionary drawings, in among "Oksogo(玉所稿)" which is Ok So's manuscript collection, there are 56 pieces in Je Chun Bon (edition) and 47 in Moon Kyoung Bon(edition). And recorded dreams in visionary drawings are centralized when Ok So was in his late 50's to 70's. And it is estimated that the visionary drawings are the collection of work done by many artists in long period of time. It was confirmed that Kwon Seop himself did not participated in drawings but were done by his brother Kwon Young, his grandson Kwon Shin Eung and Cho Se Gul, the artist from Pyoung Yang. Also visionary drawings were produced in youth years and among the visionary drawings that can be ascertain about the produced year and the oldest is by Cho Se Gul which was estimated to be done in 1695. And the last one to be completed was which was a dream in 1756 turned into a drawing and this was produced between 1756 to 1759 which was a year Ok So passed away. Production of Ki Seung Chup (album) or Mong-Wha Chup (album) was accomplished as follows. When Ok So records his dream in writing he receives response poem from a person he was in dream with and ask artist to draw the vision in dream, then the drawing and scripts were compiled and made into an album. With this some of the issues on visionary drawings featured on "Oksogo(玉所稿)" would have been settled. Recently, 2 more volumes of Ok So's anthology were photo-printed and published and hopefully those issues that was unable to settle in this script will have more detailed answers by discovering new and undisclosed data.

Mobile robot platform embodiment to measure slippery degree of road (전도 측정을 위한 모바일 로봇 플랫폼 구현)

  • Lee, Dong-Kwang;Kong, Jung-Shik;Kwon, Oh-Sang;Jang, Mun-Suk;Kang, Shin-Hyuk;Shin, Woon-Chul;Kim, Jung-Soo;Lee, Eung-Hyuk
    • Proceedings of the KIEE Conference
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    • 2007.10a
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    • pp.83-84
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    • 2007
  • 작업자가 작업장에서 전도 등으로 인한 산업 재해를 입지 않도록 하기 위해서는 작업장에서의 전도 상황을 판단하여야 하며, 이러한 전도 상황을 측정할 때 자동화된 전도 측정 장치는 작업장에서의 효율성을 확보하는 동시에, 전도를 측정하는 사람이 측정 과정예서 일어날 수 있는 불상사 등을 예방하여 산업재해를 미연에 방지해서 이를 통한 산업 현장의 안정성 확보를 통한 부대 비용 발생을 방지할 수 있게 된다. 이러한 자동화된 전도 측정을 위한 방편으로써 전도 측정용 로봇의 개발하였다.

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Influence of Substrate Temperature of SBN Ceramic Thin Film (SBN 세라믹 박막의 기판온도에 따른 영향)

  • Kim, Jin-Sa;Oh, Yong-Cheul;Shin, Cheol-Gi;Kim, Eung-Kwon;So, Byeong-Mun;Song, Min-Jong;Kim, Chung-Hyeok
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.11a
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    • pp.213-214
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    • 2008
  • The $Sr_{0.7}Bi_{2.3}Nb_2O_9$(SBN) thin films are deposited on Pt-coated electrode(Pt/Ti/SiO2/Si) using RF sputtering method at various substrate temperature. The optimum conditions of RF power and Ar/O2 ratio were 60[W] and 70/30, respectively. The crystallinity of SBN thin films were increased with increase of substrate temperature in the temperature range of 100~400[$^{\circ}C$]. The capacitance of SBN thin films were increased with the increase of substrate temperature.

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UV transparent stamp fabrication for UV nanoimprint lithography (UV 나노임프린트 리소그래피용 UV 투과성 나노스탬프 제작)

  • Jeong, Jun-Ho;Sim, Young-Suk;Sohn, Hyon-Kee;Shin, Young-Jae;Lee, Eung-Suk;Hur, Ik-Boum;Kwon, Sung-Won
    • Proceedings of the KSME Conference
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    • 2003.04a
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    • pp.1069-1072
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    • 2003
  • Ultraviolet-nanoimprint lithography (UV-NIL) is a promising nanoimprint method for cost-effectively defining nanometer scale structures at room temperature and low pressure. Nanostamp fabrication technology is a key technology for UV-NIL because fabricating a high resolution nanostamp is the first step for defining high resolution nanostructures in a substrate. We used quartz as an UV transparent stamp material for the UVNIL. A $5{\times}5{\times}0.09$ inch stamp was fabricated using the quartz etch process in which Cr film was used as a hard mask for transferring nanostructures into the quartz. In this paper, we describe the quartz etching process and discuss the results including SEM images.

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Off-line Parameter Estimation of Induction Motor for Vector Control In Continuos Process Line

  • Kwon, Byung-Ki;Park, Ga-Woo;Shin, Won-Chang;Cho, Eung-Sang;Lee, Jin-Seop;Choi, Chang-Ho;Hyun, Dong-Seok
    • Proceedings of the KIPE Conference
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    • 1998.10a
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    • pp.386-391
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    • 1998
  • Parameter estimation method of induction motor for vector control is presented in this paper. It can be easily implemented and applied to inverters in the industrial field, because it needs no additional hardware such as voltage sensors and measuring equipment. The proposed algorithm in this paper is so straightforward and practical that it can be easily implemented on the built-in controllers with little overhead. The proposed estimation algorithm has good accuracy and repeatability for parameters due to the sensitivity of estimation errors. This enables its total consuming time to be made shorter. Experimental results and applications in the industrial fields verify the validity and usefulness of the proposed method.

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A Study on the Analysis of the Tube for Detecting Ignition Point (발화점 감지 튜브 특성분석에 관한 연구)

  • Choi, Young-Kwan;Yoon, Byeong-Don;Kim, Eung-Kwon;Shin, Myong-Chul
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2010.10a
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    • pp.341-344
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    • 2010
  • 발화점 감지 튜브 자동소화장치는 화재발생시 일정한 온도가 되면 튜브가 녹아 가스가 방출되면서 소화용기내의 소화약제가 방출되어 화재를 진압하는 장치로써 전력의 공급 없이도 화재의 감지 및 소화가 가능한 자동소화장치이다. 본 논문에서는 감지온도 $100^{\circ}C{\sim}110^{\circ}C$에서 열에 반응하여 가스방출이 가능한 첨단 폴리머 튜크 재질의 발화점감지 튜브를 개발하고자 기존 발화점 감지 튜브의 특성을 분석하였다.

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A Study on the Development of an Automatic Fire Extinguisher for Power Sub-station systems (수배전반용 자동소화장치 개발에 관한 연구)

  • Choi, Young-Kwan;Yoon, Byeong-Don;Kim, Eung-Kwon;Shin, Myong-Chul
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2010.10a
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    • pp.345-348
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    • 2010
  • 수배전반, 반도체 설비장치가 있는 FAB, 그리고 철도 전원실에 설치된 신호 전원 공급장치 및 정류기 내부에 화재발생 위험성이 내제되어 있으나, 기기 내부에 소화 장치가 설치되어 있지 않아서, 화재발생시 기기소실에 따른 1차 피해뿐만 아니라, 2차 피해가 막대하다. 이러한 문제점을 해결하고자 본 연구에서 제안하는 수배전반용 발화점감지 튜브 소화장치는 화재발생시 일정한 온도가 되면 튜브가 녹아 가스가 방출되면서 소화용기내의 소화약제가 방출되어 화재를 진압하는 장치로써 전력의 공급 없이도 화재의 감지 및 소화가 가능한 자동소화장치이다. 본 논문에서는 수배전반용 발화점 감지 튜브에 적합한 소화기를 개발하기 위해 소화기를 재설계 하였다.

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A study on the Inclination measurement with tilt sensor on the tower crane (기울기 센서를 이용한 타워크레인의 기울어짐 측정방안에 관한 연구)

  • Kang, Shin-Hyuk;Kong, Jung-Shik;Kwon, Oh-Sang;Jang, Mun-Suk;Shin, Woon-Chul;Lee, Dong-Kwang;Jang, Chol-Woong;Chung, Ki-Ho;Yeom, Moon-Jin;Lee, Eung-Hyuk
    • Proceedings of the KIEE Conference
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    • 2007.10a
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    • pp.91-92
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    • 2007
  • 산업현장에서 사용되는 타워크레인의 전도 상황을 측정하기 위한 시스템은 현재 풍속계에 의존하고 있는데, 풍속계의 경우 타워크레인의 기울어짐을 정략적으로 측정할 수 없는 센서이기 때문에 정확한 상황 판단이 어렵고, 운전자나 관리자의 판단이 필요한 문제를 갖는다. 그래서 보다 정확한 정도를 측정하기 위해 타워크레인의 지브(jib) 휘어짐과 타워축의 휘어짐을 측정하여 정량적인 위험 상황을 경보 할 수 있는 전도 측정 장치가 필요하기 때문에 타워크레인의 좌/우 및 상/하 기울어짐에 대한 정량적인 측정이 가능한 기울기 센서를 이용한 센서 시스템을 구축하고, 타워크레인의 동작 위험성을 알리기 위한 경보 기법을 구축 했다.

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Influence of metal annealing deposited on oxide layer

  • Kim, Eung-Soo;Cho, Won-Ju;Kwon, Hyuk-Choon;Kang, Shin-Won
    • Proceedings of the IEEK Conference
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    • 2002.07a
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    • pp.365-368
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    • 2002
  • We investigated the influence of RTP annealing of multi-layered metal films deposited on oxides layer. Two types of oxides, BPSG and P-7205, were used as a bottom layer under multi-layered metal film. The bonding was not good in metal/BPSG/Si samples because adhesion between metal layer and BPSG oxide layer was poor by interfacial reaction during RTP annealing above 650$^{\circ}C$. On the other hand bonding was always good in metal/ P-TEOS /Si samples regardless of annealing temperature. We observed the interface between oxide and metal layers using AES and TEM. The phosphorus and oxygen profile in interface between metal and oxide layers were different in metal/BPSG/Si and metal/P-TEOS/Si samples. We have known that the properties of interface was improved in metal/BPSG/Si samples when the sample was annealed below 650$^{\circ}C$.

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A New Approach to Advanced Cold Mill Drive Systems (냉간압연용 1MVA IGBT 인버터의 개발)

  • Son, Yo-Chan;Kim, Yong-Seok;Jeon, Seok-Ho;Chung, Dae-Woong;Seok, Jul-Ki;Song, Seung-Ho;Sul, Seung-Ki;Kwon, Byung-Ki;Park, Ga-Woo;Shin, Won-Chang;Cho, Eung-Sang;Lee, Jin-Seop;Choi, Chang-Ho
    • Proceedings of the KIEE Conference
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    • 1997.07f
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    • pp.1974-1977
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    • 1997
  • 오늘날 철강 냉간압연의 응용분야에서는 고성능의 장력제어와 높은 신뢰도, 역률 개선, 공장의 생산성 향상 등을 요구하고 있다. 기존의 직류전동기를 대체하는 가변속 교류전동기 구동시스템과 고주파 PWM, 그리고 높은 역률을 보장하는 PWM 컨버터에 의해 이러한 요구사항들은 만족될 수 있다. 이 논문에서는 위에서 언급된 제어요건을 보장하는 철강 생산 설비용 1MVA급 압연시스템을 설명한다. 본 시스템은 하나의 ac/dc PWM 컨버터와 각각 700kw 유도전동기를 구동하는 두대의 PWM 인버터로 구성되어 있다. 제어 알고리듬은 TMS320C40 디지탈 신호처리 프로세서(이하 DSP) 시스템을 이용하여 구현하였다.

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