• Title/Summary/Keyword: 홍대용

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한국천문연구원-제53호

  • 한국천문연구원
    • KASI NEWSLETTER
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    • s.53
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    • pp.1-8
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    • 2005

  • 오 명 부총리 겸 과학기술부 장관 우리 연구원 방문/ 창립 31주년 기념식 개최/ 동아시아 4개 지역, 동아시아 핵심 천문대 연합체(EACOA) 결성/ 국내 발견 소행성, '홍대용', '김정호'로 명명/ '대한민국 별 축제 2005' -아인슈타인 상대성이론 100주년 기념/ 2005 세계우주주간 축제 참가/ 성남학생 과학축제/ 화성축제 행사 개최/ ePoster 자체 제작 사용/ 추계 체육 행사실시/ 팀웍의 날 실시/ 직원 동정/ 학회동정/ 콜로키움 혁신으로 천문연구원 두 배로 키우기/ 혁신선포식 및 혁신 마인드 강화 워크숍 개최/ 혁신 리더 워크숍 개최/ 홍보사업팀-전산정보팀 혁신 워크숍/ 제안제도 활성화 방안 시행/ 우리는 이미 항구를 떠났다.

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Mathematics of Chosun Dynasty and $Sh\grave{u}\;l\breve{i}\;j\bar{i}ng\;y\grave{u}n$ (數理精蘊) (조선(朝鮮) 산학(算學)과 수리정온(數理精蘊))

  • Hong Young-Hee
    • Journal for History of Mathematics
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    • v.19 no.2
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    • pp.25-46
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    • 2006

  • We investigate the process of western mathematics into Chosun and its influences. Its initial and middle stages are examined by Choi Suk Jung(崔錫鼎, $1645\sim1715$)'s Gu Su Ryak(九數略), Hong Jung Ha(洪正夏, $1684\sim?$)'s Gu Il Jib(九一集) and Hwang Yun Suk(黃胤錫, $1719\sim1791$)'s I Su Shin Pyun(理藪新編), Hong Dae Yong(洪大容, $1731\sim1781$)'s Ju Hae Su Yong(籌解需用), respectively. Western mathematics was transmitted for the study of the Shi xian li(時憲曆) when it was introduced in Chosun. We also analyze Su Ri Jung On Bo Hae(數理精蘊補解, 1730?) whose author studied $Sh\grave{u}\;l\breve{i}\;j\bar{i}ng\;y\grave{u}n$ most thoroughly, in particular for astronomy, and finally Lee Sang Hyuk(李尙爀, $1810\sim?$), Nam Byung Gil(南秉吉, $1820\sim1869$) who studied together structurally western mathematics.

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Dam-Heon Hong Dae Yong's : A part of the BukHak School's Understanding on The Great Learning (담헌 홍대용의 <대학문의(大學問疑)> : 북학파의 『대학』 이해의 일단(一端))

  • Ahn, Woe Soon
    • (The)Study of the Eastern Classic
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    • no.33
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    • pp.385-411
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    • 2008

  • This thesis aims at examining his understandings about the The Great Learning centering on the of the founder of the YiYongHuSaeng School (利用厚生學派: A school who pursued prosperous economy and welfare of people) orthe BukHak School(北學派: A positive school that pursued mercantilism) from the Joseon Dynasty, Dam-Heon Hong Dae Yong (1731-1783). 1) From what is indicated in the , his studies mainly focused on the annotations from DaeHakJangGuDaeJeonJipJu ("大學章句大全集註": A book that edited different phrases from the Great Learning into chapters and paragraphs), Questioning of the Great Learning", and "JuJaUhRyu (朱子語類: A book of Confucian literature written by Yeo Jung Deok" of Zhu Xi who was a representative scholar of the Neo-Confucianism in the Song Dynasty. 2) Acknowledging entirely the arguing points of Zhu Xi, he is taking a critical position in a way that partial doubts are divided into seven chapters and questioned. 3) For the main characteristic and direction of the questioning, he is estimating that Zhu Xi only stressed the 'means' and 'interior' out of the world of 'means and ends' and 'interior and exterior' in Zhu Xi's recognizing and handling cases; instead, he emphasized putting equivalent value on the 'ends' and 'exterior' as well. 4) In fact, such questions raised partially were misconceived since they were not carried out through profound understanding nor systematic logic expansion of what Zhu Xi insisted. 5) Despite this, at the point where Neo-Confucian thoughts were fixed and weakened only with its form left in the late Joseon Dynasty, his perspective on the study of Confucian classics that the 'ends' and 'exterior' should be as equally valued as the 'means' and 'interior' by examining through the core text of the Neo-Confucianism, The Great Learning has its significance in his YiYongHuSaeng dogma that says politicians, by all means, should provide the ruled with economic convenience and welfare and this is their very right virtue.

LED Automotive Signal Lamp Design (LED를 이용한 차량용 램프 구현)

  • Hong, Dae-Un;Lee, Seong-Jae
    • Proceedings of the Optical Society of Korea Conference
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    • 2004.02a
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    • pp.266-267
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    • 2004

  • LED를 이용한 차량용 signal lamp를 구현 하였다. 가변적인 전원전압 및 온도조건에서도 일정한 광량을 유지할 수 있도록 하였으며, 한편 단위 LED 사이의 특성 차이로 인한 밝기의 불균일성을 줄일 수 있도록 하기 위하여 펄스폭 변조를 응용한 회로를 적용하였다.

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