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  1. No Access

    Article

    Phase-shifted third harmonic modulation technique for induction heating applications to improve soft switching capability

    Induction heating (IH) systems have been attracting more attention due to their direct heating capability. Moreover, IH systems have the advantages of fast heating performance, high efficiency, cleanliness, an...

    Wonsik Jeong, Kyung-Wook Heo, Jun-Suk Lee, Jee-Hoon Jung in Journal of Power Electronics (2024)

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    Article

    Anthraquinone, Lignan, and Flavonoid Constituents from the Leaves of Sageretia thea

    Hanna Cha, Yeon Woo Jung, Ji Eun Lee, Wonsik Jeong in Chemistry of Natural Compounds (2024)

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    Article

    Secondary Metabolites from the Leaves and Twigs of Acer pseudosieboldianum

    Ji Eun Lee, Wonsik Jeong, Seong Su Hong in Chemistry of Natural Compounds (2024)

  4. Article

    Open Access

    Bioassay-guided isolation and identification of anti-obesity phytochemicals from fruits of Amomum tsao-ko

    Amomum tsao-ko (Zingiberaceae), an important traditional medicinal herb, possesses many biological activities, including anti-inflammatory effects. Though the anti-obesity properties of the crude ethanol extract ...

    Seong Su Hong, Chun Whan Choi, Ji Eun Lee, Yeon Woo Jung in Applied Biological Chemistry (2021)

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    Article

    Flavonoids from the Aerial Parts of Astilbe rubra

    Changon Seo, Wonsik Jeong, Ji Eun Lee, ** Gwan Kwon in Chemistry of Natural Compounds (2019)

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    Article

    Inhibition of Antigen-Induced Degranulation by Flavonoids Isolated from the Leaves of Quercus Acuta in RBL-2H3 Cells

    Seong Su Hong, Wonsik Jeong, Jae Yeon Lee, Eun-Kyung Ahn in Chemistry of Natural Compounds (2016)

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    Article

    Bioactive triterpenoids from Callistemon lanceolatus

    A new triterpenoid, 30-hydroxyalphitolic acid 1, and eight known triterpenoids, alphitolic acid 2, lupenol 3, 3-acetoxy-olean-18-en-28-oic acid 4, betulinic acid 5, ursolic acid 6, betulinic acid 3-O-caffeate 7, ...

    Wonsik Jeong, Seong Su Hong, Nahyun Kim, Young Taek Yang in Archives of Pharmacal Research (2009)