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FIMS Observations of the Monogem Ring

  • Kim Il-Joong;Seon K.-I.;Min K.-W;Ryu K -S.;Lee D.-H;Han W.;Nam W.-W;Yuk I.-S.;Park I.-H.;Jin H.;Shinn J.-H.;Park J.-W.;Lim Y. M.
    • The Bulletin of The Korean Astronomical Society
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    • v.30 no.1
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    • pp.60.2-60.2
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    • 2005

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ElectroStatic Analyzer (ESA) for KAISTSAT-1

  • Lee, Jae-Jin;Lee, Ensang;Kim, Hee-jun;Park, Jae-heung;Hwang, Jung-A;Min, Kyoung-Wook;Michael. p. McCarthy;Park, George. K. s
    • Bulletin of the Korean Space Science Society
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    • 2002.05b
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    • pp.37.1-37
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    • 2002

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Habitat use of reintroduced Long-tailed Gorals (Naemorhedus caudatus) in Woraksan (Mt.) National Park in Korea

  • Cho, Chea-Un;Kim, Kyu-Cheol;Kwon, Gu-Hui;Kim, Ki-Yoon;Lee, Bae-Keun;Son, Jang-Ilk
    • Korean Journal of Environment and Ecology
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    • v.29 no.2
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    • pp.184-191
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    • 2015

  • This study aimed to analyze characteristics of the seasonal habitat use of reintroduced Long-tailed Gorals (n=7) in Woraksan (mountain) National Park. We collected 10,721 goral coordinates in Woraksan (mountain) National Park via transmitters, and analyzed habitat use (e.g., aspect, distance from stream and road) from November 2006 to January 2013. Aspect use was southwest (22.6 %), and seasonal aspect use had a southwestern slope (in the spring, summer, and autumn). A northwestern aspect was detected in winter, but slope of $30^{\circ}{\sim}35^{\circ}$ (19.0 %) was used regardless of the season and mean elevation use was 500 m. Moreover, seasonal use was higher in the summer and lower in the winter and spring. The distance from the stream was mainly 50 m in 17.2 %, except in the winter (distance of 300 m), and it was within 50 m in the spring, summer, and autumn. The distance from the road was 100 m in 25.7 %, and seasonal use was within 100 m except for the winter. Thus, we examined significant differences in the habitat use of reintroduced gorals in Woraksan (mountain), and provide elementary data for habitat stabilization of Woraksan (mountain) National Park where goral restoration has advanced.

  • https://doi.org/10.13047/KJEE.2015.29.2.184 인용 PDF KSCI

High-Speed Signaling in SDARM Bus Interface Channels : Review

  • Park, Hong-June;Sohn, Young-Soo;Park, Jin-Seok;Bae, Seung-Jun;Park, Seok-Woo
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.1 no.1
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    • pp.50-69
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    • 2001

  • Three kinds of high-speed signaling methods for synchronous DRAM (SDRAM) bus interface channels (PC-133, Direct-Rambus, and SSTL-2) were analyzed in terms of the timing budget and the physical transmission characteristics. To analyze the SDRAM bus interface channels, loss mechanisms and the effective characteristic impedance method were reviewed and the ABCD matrix method was proposed as an analytic and yet accurate method. SPICE simulations were done to get the AC responses and the eye patterns of the three SDRAM bus interface channels for performance comparisons. Recent progress and future trend for SDRAM bus interface standards were reviewed.

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