• Title/Summary/Keyword: Kyung Shin Ho

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Theoretical Interpretation of Positive Magnetoresistance in Permalloy Film

  • Sung, Gisuk;Shalyguina, Elena-E.;Shin, Kyung-Ho
    • Journal of Magnetics
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    • v.4 no.1
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    • pp.22-25
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    • 1999
  • Recently we reported the evolutionary transition from the positive magnetoresistance to the negative was discovered in the transverse configuration as the thickness of permalloy film increases. The discovered peculiarities of positive magnetoresistance phenomenal were explained in the framework of the uniform rotation model of the film magnetization reversal.

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Total Synthesis of Fentanyl

  • Suh, Young-Ger;Cho, Kyung-Ho;Shin, Dong-Yoon
    • Archives of Pharmacal Research
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    • v.21 no.1
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    • pp.70-72
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    • 1998
  • Fentanyl of a potent anilidopiperidine analgesic has been synthesized from a simple phenyle-thylamine by four step sequence. The key part of this synthesis involves an efficient construc-tion of phenylethylpiperidone skeleton via aminomethano desilyation-cyclization followed by Swern oxidation.

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