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윤기영(Yoon Ki-young),조경원(Jo Gyeong-won),손영빈(Son Young-bin) 서원대학교 사범대학 부설 교육연구소 2014 교육발전 Vol.34 No.1
This study investigated relations between day-care teacher s scaffolding performance and job satisfaction. The subject were 297 day-care center teachers in Chungcheongbuk-do. The findings were: First, most of child-care center teachers were satisfied with their jobs. Second, the teachers scaffolding stood to be 3.32 on average to interact positively. Third, the teachers job satisfaction had positive relation with scaffolding. Therefore, the teachers job satisfaction required day-care center directors better treatment, authority s systematic supports, teachers self-examination and self-training and so on.
기계적 합금화 Iron Silicide의 열간성형 및 열처리에 의한 상변화
어순철,김일호,황승준,조경원,최재화,Eo, Sun-Cheol,Kim, Il-Ho,Hwang, Seung-Jun,Jo, Gyeong-Won,Choe, Jae-Hwa 한국재료학회 2001 한국재료학회지 Vol.11 No.12
An n-type iron$silicide(Fe_{0.98}Co_{0.02}Si_2)$has been produced by mechanical alloying process and consolidated by vacuum hot pressing. Although as-milled powders after 120 hours of milling did not show an alloying progress,${\beta}-FeSi_2$phase transformation was induced by isothermal annealing at$830{\circ}C$for 1 hour, and the fully transformed${\beta}-FeSi_2$phase was obtained after 4 hours of annealing. Near fully dense specimen was obtained after vacuum hot pressing at$ 1100{\circ}C$with a stress of 60MPa. However, as-consolidated iron silicides were consisted of untransformed mixture of ${\Alpha}-Fe_2Si_5$and ${\varepsilon-FeSi$phases. Thus, isothermal annealing has been carried out to induce the transformation to a thermoelectric semiconducting${\beta}-FeSi_2$phase. The condition for${\beta}-FeSi_2$transformation was investigated by utilizing DTA, SEM, and XRD analysis. The phase transformation was shown to be taken place by a vacuum isothermal annealing at$830{\circ}C$and the transformation behaviour was investigated as a function of annealing time. The mechanical properties of${\beta}-FeSi_2$materials before and after isothermal annealing were characterized in this study.
만성 활동성 간염에 병발한 재발성 Guillain-Barre 증후군
임현성 ( Im Hyeon Seong ),신양수 ( Sin Yang Su ),김원민 ( Kim Won Min ),최성도 ( Choe Seong Do ),정태홍 ( Jeong Tae Hong ),김만우 ( Kim Man U ),조경원 ( Jo Gyeong Won ),정원영 ( Jeong Won Yeong ) 대한내과학회 1993 대한내과학회지 Vol.44 No.2
Guillain-Barre syndrome complicating chronic active hepatitis is rare. In its antecedent and associated illness, various viral infections are commonly involved (esp. viral hepatitis). A classic features that allow diagnosis of GBS is ascending symmetrical weakness, areflexia, minimal sensory loss, and albuminocytological dissociation in CSF. A number of neurological complications of viral hepatitis have been reported, including hepatic coma, hemorrhages into the CNS, both subdural and intraparenchymal. encephalitis, meningitis, myelitis, isolated pyramidal tract and extrapyramidal tract dysfunction, Meniere`s disease, dermatomyositis, seizures, mononeuritis, plexitis, and psychiatric disturbances. But there were no reports about GBS complicating chronic active viral hepatitis in Korea until now. We report a case of GBS complicating chronic active hepatitis in a 41-year-old male.