• Title/Summary/Keyword: Lee Ok

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Implementation of Color-Temperature Conversion System using X-Chromaticity Coorindate (X-색도 좌표를 이용한 색온도 변환 시스템 구현)

  • Lee, Ho-Nam;Lee, Bong-Geun;Mun, O-Hak;Gang, Bong-Sun
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.39 no.8
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    • pp.64-73
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    • 2002

  • In this Paper, we propose the color-temperature conversion method using an one-dimensional illuminant chromaticity. It also presents the design and the implementation of the proposed method. The performance of the method is compared with that of two-dimensional conversion method in Robertson's algorithm based on calculated color temperatures. The proposed method is demonstrated experimentally for color temperatures in the range of 3,000OK to 25,000OK with the Xilinx Virtex-E FPGA XCV2000E-6BG560.

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The comparison of thermal characteristics of new Han-ok floor heating for applying modern On-dol system (현대 온돌 시스템 적용을 위한 신한옥 바닥난방의 열적특성 비교)

  • Lee, Tai-Gang;Lee, Ju-Yeob;Song, Min-Jeong;Kim, Sun-Woo
    • KIEAE Journal
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    • v.13 no.3
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    • pp.61-69
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    • 2013

  • The experiment on thermal characteristics of on-dol systems were carried out to apply to New Han-ok's heating system. Change of surface temperature varied with heating times, distribution of surface temperature, radiation property were surveid on four on-dol system in laboratory conditions. Followings are results. 1) "Hwang-to unit" was most favorable condition of the distribution of floor surface temperature. And the results from reaching time to thermal comfort temperature of on-dol system showed that "Hwang-to unit" was the most favorable to continuance of floor temperature. 2) There were a little difference in surface floor radiations of $30^{\circ}C$ for three wet on dol-systems. 3) It was suggested that "Hwang-to unit" is the most appropriate to floor heating system of new han-ok considering eco-friendship and continuance of floor temperature in intermittent heating condition.

  • https://doi.org/10.12813/kieae.2013.13.3.061 인용 PDF KSCI

A Case of Huge Cystic Hygroma with the Use of OK-432 (거대 경부 낭성수종 환자에서의 OK-432 치료 1 예)

  • Lee, In-Hyo;Kim, Jung-Eun;Kim, Young-Jae;Kim, Dong-Wook
    • Korean Journal of Bronchoesophagology
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    • v.16 no.1
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    • pp.59-63
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    • 2010

  • Cystic hygroma is a rarc congenital malformation of the lymphatic system and seen rarely in adults. It represents an error in communication between the large draining lymphatic channels and the venous system, Conventional surgical excision remains the most popular method of treatment in many developing countries despite the dangers associated with treatment modality. We present a case of huge cervical cystic hygroma in a 26-year old female who was treated with OK-432 sclerotherapy.

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