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이재호,고명완,박동화 ( Jae Ho Lee,Myung Wan Ko,Dong Wha Park ) 한국공업화학회 1994 공업화학 Vol.5 No.1
아르곤 열플라즈마 CVD장치를 제작하여 메탄과 수소기체의 화학적인 반응을 이용해서 대기압하에서 몰리브덴 기판에 준안정상(metastaable state)의 다이아몬드를 합성하였다. 증착실험 후 SEM관찰, X선 회절 및 Raman분광분석을 행한 결과, 기판표면온도와 수소에 대한 메탄 농도비에 따라 증착 입자의 morphology가 변화하였다. 본 연구에서 설정한 중착조건 범위에서, 다이아몬드는 기판표면의 온도가 약 890℃와 수소에 대한 메탄 농도비가 0.5%로 하였을 때, 결정성, 밀도 및 품질이 우수한 다이아몬드 입자를 합성하는 것이 가능하였다. In an argon thermal plasma CVD system, diamond of metastable state was synthesized on molybdenum substrate by chemical reaction of methane and hydrogen under atmospheric pressure. The analyses of SEM, XRD and Raman Spectra shows that the morphology of deposited particle was transformed according to surface temperature of substrate and concentration ratio of methane to hydrogen. Diamond was relatively well obtained when surface temperature of substrate was 890℃ and concentration of methane ratio was 0.5 percents.
안정기 양극성 장애 I형 환자에서 정신병적 증상에 따른 기질과 성격
박동화,전재영,최혜정,김세주,조현상,석정호,이은,전덕인 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.5
Objectives : The aim of this study was to exam whether personality, i.e. temperament and character, has an association with a previous presence of psychotic features in euthymic bipolar I disorder. Methods : We recruited 25 psychotic patients with bipolar I disorder, 23 non-psychotic bipolar I patients and 48 normal controls. All sub]ects were asked to perform Temperament and Character Inventory (TCl). Euthymic state was defined in bipolar patients by scores of below 10 on the Hamilton Depression Rating Scale (HDRS) and on the Young Manic Rating Scale (YMRS). Results : Psychotic bipolar patients, compared to normal controls, showed higher harm avoidance (HA) and self-transcendence (ST). In addition, HA in psychotic bipolar patients was higher than that in non-psychotic bipolar patients. However, no significant differences on TCI were demonstrated between non-psychotic patients and normal controls. Conclusion : There are significant discrepancies in personality between psychotic and non-psychotic bipolar patients on HA and ST. These findings are consistent with the hypothesis of a continuum between bipolar disorder with psychotic features and psychotic disorders.