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Inconel 600 및 690 튜브 재질의 일반 부식에 관한 실험적 연구
염유선,황정래,전인섭,김숭평,윤장희,Yeom Yu-Sun,Hwang Jung-Lae,Jun In-Sub,Kim Soong-Pyung,Yoon Jang-Hee 한국방사성폐기물학회 2006 방사성폐기물학회지 Vol.4 No.2
By executing corrosion experiment on Inconel 600, 690 used to material of S/G tube in domestic NPP, this paper show estimation of amount of product such as Co-58, Co-60, Cr-51, Mn-54, Fe-59 which are main exposure cause to the workers in NPP. Therefore, Making the 12 samples consisted of Inconel 600, 690, whole corrosion experiment was carried out for 60 days(each pH by 20 days). The conditions of those tests were similar or more harsh than actual conditions of domestic NPP. The Glow Discharge Spectrometer(GDS) was used for quantitative analysis of results. The results of using GDS, the Inconel 600 corrodes more than Inconel 690 at pH 7 and pH 9. However, it is observed that Inconel 690 corrodes more than Inconel 600 at pH 4. Those results is estimated that test sections had the effect of transient. The long terms of experiment is required to minimize and solve the problem.
전인섭,김상철 대한치과교정학회 1992 대한치과교정학회지 Vol.22 No.2
The purpose of this study was to examine the displacement of glenoid fossa during growth, and to investigate the relationship between the displacement of glenoid fossa and mandible. Pretreatment and posttreatment lateral cephalograms of 41 patients (male : 13, female : 28) were obtained from the orthodontic clinics of WonKwang university hospital and were analized in terms of the position of articulare and mandible and statistically. The obtained results were as follows ; 1. Articulare was displaced posteriorly and inferiorly during craniofacial growth and development. 2. The more posteriorly articulare displaced, the less anteriorly pogonion displaced, but the more inferiorly menton displaced. 3. The more posteriorly or inferiorly articulare was located, the more inferiorly menton displaced, and the more posteriorly articulare was located posteriorly, the less cant of the mandibular plane.