• 제목/요약/키워드: Seoul Park

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가정용 ESS를 위한 고효율 공진형 양방향 DC-DC 컨버터 개발 (Development of High Efficiency Bi-directional Resonant DC-DC Converter for Residential ESS)

  • 박준성;오세철;이상혁;김민재;박찬수;한국인;최세완
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2011년도 추계학술대회
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    • pp.191-192
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    • 2011

  • 본 논문에서는 가정용 ESS를 위한 직렬 공진형 양방향 DC-DC 컨버터를 제안한다. 제안한 컨버터는 2단 방식으로 비절연 컨버터가 전압 전류 및 양방향 제어를 하며 절연부는 고정듀티와 고정주파수로 동작시켜 전 부하영역에서 ZCS 턴온 턴오프가 가능하다. 50kHz, 3kW 시작품으로 제안한 방식의 타당성을 검증하였으며 강압시 최대효율 95.2 %, 승압시 최대효율 94.8%를 달성하였다.

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The Production of Germline Chimeras by Transfer of Gonadal Primordial Germ Cells Separated with Magnetic Cell Sorter System in Quail

  • Shin, Sang-Su;Park, Tae-Sub;Kim, Mi-Ah;Kim, Jin-Nam;Lee, Kyung-Joo;Park, Hyun-Jeong;Han, Jae-Yong
    • 한국가금학회:학술대회논문집
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    • 한국가금학회 2002년도 가을 학술발표논문집
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    • pp.98-99
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    • 2002

  • Collection of large number of gonadal Primordial germ cells(gPGCs) is a prerequisite factor for improving germline transmission efficacy in the aves, In this study a magnetic-activated cell sorter(MACS) was applied for improving retrieval efficacy of quail gPGCs and the migration capacity of MACS-separated gPGCs was further examined after being transplanted to recipient embryos. We also induced germline chimeras by transfer of MACS-separated quail gPGCs at the efficiency of 17.4% on average.

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Chain-branched Acyclic Phenethylthiocarbamates as Vanilloid Receptor Antagonists

  • Kim, Hee-Doo;Yoon, Jung-Wha;Choi, Hye-Young;Lee, Hyun-Joo;Ryu, Chong-Hyun;Park, Young-Ho;Suh, Young-Ger;Oh, Uh-Taek;Park, Hyeung-Guen
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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    • pp.241.3-242
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    • 2003

  • By acting on vanilloid receptor(VR1). capsaicin excites and then desensitizes a subset of primary neurons involved in nociception, neurogenic inflammation, and a variety of local regulatory functions. Due to this unique biological activity, VR1 is at present one of the most attractive targets for the treatment of pain. However, despite the concentrated effort on agonists, they have been exposed to the side effects such as pungency and/or hypothermia responses. (omitted)

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