• Title/Summary/Keyword: Yun-Ji

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Study of transient response in dielectric microstrip line with opto-microwave pulses

  • Wang, Xue;Kim, Ji-Hyoung;Yun, Ji-Hun
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.2 no.2
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    • pp.63-68
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    • 2009
  • We study on the transient response in non-uniform microstrip lines with optically controlled microwave pulses. The transient response of the microwave pulses in plasma layer has been evaluated by reflection function of dielectric microstrip lines. The variation of characteristic response in plasma layer with localized pulses has been evaluated analytically. Reflection the change of the reflection amplitude has been observed.

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Effect of Coffee Enema among Detoxification Therapy on Atherosclerosis : One Clinical Case Report (해독요법 중 커피관장을 적용한 죽상경화증의 치험 1례)

  • Kim, Doo-Hee;Shin, Woo-Suk;Jung, Hyun-Woo;Jung, Jun-Kyo;Lee, Jin-Won;Park, Won-Hyung;Cha, Yun-Yeop
    • Journal of Korean Medicine Rehabilitation
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    • v.23 no.2
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    • pp.193-199
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    • 2013
  • This study was performed to report the effect of coffee enema among detoxification Therapy on atherosclerosis. Russian patient was treated by coffee enema, acupuncture, herbal medicines, exercise, cupping, korean physical therapy, chuna manipulation treatment and moxibustion. The state of patient was measured by Infrared Thermography, Blood Vessel Stasis Test and Minnesota Nicotine Withdrawal Scale. After treatments, both feet temperature were increased. And index of indicating the occlusion of the lower body was improved. Also, Minnesota Nicotine Withdrawal Scale scores were improved. It means the patient was successful at non-smoking during hospitalization. These results suggests that atherosclerosis was improved. According to above results, coffee enema was effective to improve the atherosclerosis. More studies should be followed.

A study on the Electric Breakdown Mechanisms using Self-helfing Method of Thin Film (Self-healing 방법을 이용한 박막의 절연파괴 현상 연구)

  • Yun, J.R.;Kwon, C.R.;Se, K.W.;Park, I.H.;Lee, H.Y.
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 1992.11a
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    • pp.11-13
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    • 1992
  • The dielectric reliability of the Thin $SiO_2$ films of wet oxidation on n-type Si substrates has been studied by using self-healing method of breakdown and according to injection time high frequence C-V tests. These experiments have been performed to investigate the dielectric breakdown mechanism of a thin film in which positive charge generation during high-field Fowler-Nordheim tunneling are considered. In addition, The weak spots and robust areas are distinguished so that the localized dielectric breakdown could be described.

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Synthesis of Polycarbosilane for SiC Precursor (SiC의 Pricursor Polycarbosilan의 합성)

  • Han, Chul;Han, In-Seop;Lee, Hyung-Bock;Chung, Yun-Joong
    • Journal of the Korean Ceramic Society
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    • v.25 no.1
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    • pp.49-53
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    • 1988
  • Polycarbosilane was synthesized from the pyrolysis of polydimethylsilane, which is dechlorinated from dimethyldichlorosilane. The pyrolysis temperature was varied at 280-480$^{\circ}C$ for 2 hours. FT-IR, FT-NMR and GPC measurement were studied on the residue inside the reaction crucible and viscous solution inside the cooling zone respectively. From the viscous solution in the cooling zone at 420$^{\circ}C$, the synthesis of polycarbosilane wa well detected.

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Analyses on Factors of Job Satisfaction of Long-Term Employed using Analytic Hierarchy Process Technique - Based on the case of Work Innovation Officials in P company and Work Production in S company - (AHP를 이용한 장기 근속자들의 직무만족요소 비교 분석 - P사 혁신업무 담당자와 S사 생산업무 담당자 비교 사례연구 -)

  • Kim, Chan Eun;Kim, Kwang Chul;Jeon, Myeong Jin;Yun, Jun Hyeon
    • Journal of the Korea Safety Management & Science
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    • v.16 no.4
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    • pp.405-416
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    • 2014
  • The importance of Human Resource Management is big issue in business management recently. However, employ's job satisfaction is appeared as low. In this study, surveys were conducted among those long-term employs. The importance of job satisfaction is prioritized by AHP analysis based on results of survey to compare to the results of previously studied research. And this study will contribute to improvement of job satisfaction by comparing the facts in two different groups of occupation.