• Title/Summary/Keyword: Park Rok-ju

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Impact Analysis in the Landing Motion of Humanoid Robot

  • So, Byung-Rok;Kim, Seong-Hoon;Park, Jae-Yeoni;Yi, Byung-Ju;Kim, Wheekuk
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2002년도 ICCAS
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    • pp.84.2-84
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    • 2002
  • $\textbullet$ The dynamic model of a floating human body is derived $\textbullet$ Introduction to impact model for human body $\textbullet$ Analysis of external impulse on the sole $\textbullet$ Analysis of internal impulse at the joints $\textbullet$ It is shown through simulation that the internal impulses for two different configurations

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Impact Analysis for Kicking Motion of a Humanoid Robot

  • Park, Jae yeon;Kim, Seong-Hoon;So, Byung-Rok;Yi, Byung-Ju;Kim, Wheekuk
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2002년도 ICCAS
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    • pp.36.6-36
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    • 2002
  • $\textbullet$ Human motion consists of continual impact with environment $\textbullet$ External impulse model of kicking motion $\textbullet$ Models of aerodynamic forces $\textbullet$ Analysis of external impulse according to posture $\textbullet$ Simulation of a soccer ball trajectory

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과학기술발전과 진흥…이것부터

  • 권숙일;조남진;오정무;이은웅;백장현;박영호;이광영;강박광;윤영훈;권순찬;김동한;김창식;권선록;김경제;박택규;김명자;권태완;김진수;정완호;김주목
    • 과학과기술
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    • 제25권2호통권273호
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    • pp.8-44
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    • 1992
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Vibrio mimicus ATCC 33653이 생산하는 Siderophore의 정제와 균의 병원성에 미치는 영향 (Purification Siderophore from Vibrio mimicus ATCC 33653 and its Effect to Bacterial Pathogenecity)

  • 박수정;주성아;허문수;정초록;주진우
    • 대한미생물학회지
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    • 제34권5호
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    • pp.461-470
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    • 1999
  • Growth under conditions of iron-restriction and the production of siderophore was examined in Vibrio mimicus ATCC 33653. This strain grew and multiplied in the presence of the high-affinity iron chelators ethylenediamine-di (o-hydroxyphenylacetic acid). Chrome azurol S (CAS) agar and solution were used to detect the production of siderophore under these condition. Siderophore could be detected in the iron-restricted culture supernatants. The siderophore was extracted from iron-restricted culture supernatants by phenol-chloroform-ether method and purified by Dowex ion-exchange and Sephadex G-25 gel filtracton chromatography. The purified siderophore was confirmed by paper chromatography and HPLC. The Purified siderophore enhanced the growth of V. mimicus when the bacterium was grown in iron limited medium. Injection of both the siderohore and the bacteria to mice resulted in more rapid death than that of the only bacteria. However, the siderophore did not show lethality to mice and any toxicity to cell line like HeLa and U937.

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폴리톨루이딘을 이용한 발광소자 연구 (Light Emitting Diodes Based on Poly-o-toluedine)

  • 박수범;이성주;김용록;김은옥
    • 대한화학회지
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    • 제46권3호
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    • pp.229-232
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    • 2002
  • 폴리아닐린에 전자주게기(-CH3)를 치환하여 전자효과(electronic effect) 와 입체장애효과(steric effect)를 확인하였다.1 폴리아닐린 유도체 폴리톨루이딘(POT)의 산화상태를 변화시키면서 ITO/POT/Al 구조의 유기발광소자를 제작하여 PL, I- V 특성 및 전기발광 특성을 확인하였다. 발광소자의 구동전압은 9∼14 V 이었다.

Synthesis and Luminescent Property Investigation of the $Mg_4GeO_2:Mn$ for LEDs

  • Lee, Seung-Jae;Park, Joung-Kyu;Kim, Kyung-Nam;Bae, Pan-Kee;Kim, Chang-Hae;Chang, Hyun-Ju;Kim, Yong-Rok
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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    • pp.1526-1528
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    • 2007
  • In this report, Manganese doped magnesium germanate ($Mg_4GeO_2:Mn$) phosphor has been synthesized by the solid state method. Also, this phosphor was prepared by simple process under an air atmosphere for oxidation of Mn. The prepared phosphor shows a main luminescent peak at 661nm. Therefore, this phosphor is possible to be applicable to white LED lamp by GaN or InGaN chips.

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Synthesis and Luminescent Property Investigation of the $Lu_3Al_5O_{12}$:Ce for the White LEDs

  • Lee, Seung-Jae;Park, Joung-Kyu;Bae, Pan-Kee;Kim, Chang-Hae;Chang, Hyun-Ju;Kim, Yong-Rok
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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    • pp.591-593
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    • 2008
  • In this report, cerium doped lutetium aluminate ($Lu_3Al_5O_{12}$:Ce) phosphor has been synthesized by the solid state method under reduction atmosphere with mixture gas. The prepared phosphor shows a main luminescent peak at 555nm. Consequently, this phosphor is possible to be applicable to white LED lamp by InGaN chips.

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