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國産鐵道車輪의 製造工程에 關한 硏究 : 事例를 中心으로
鄭寅明 한국항공대학교 1973 論文集 Vol.6 No.1
鐵道用 ?輪은 그 種類가 一??輪과 타이어의 2가지로 나누어지고 있으며, 이들의 製造方法에서는 거의 동일하고, 材質은 모두 炭素鋼을 갖는다. 韓國에서는 日?한 歷史를 가진 鐵道?輛에 가장 중요한 비중을 차지하고 있는鐵道?輪에 대한 製造工程의 現況과 隘路工程을 分析把握하여 보다 能率的인 改善策을 實證的으로 考察하여 硏究, 分析함으로써 앞으로의 國産鐵道?輛製造分野에 보다 合理的이고 科學的인 工程管理를 할 수 있는 方案과 代案을 제시하고져 하는데 그 目的이 있다. 그리고 鐵道?輛製造工程上의 問題点을 改善하여 不良率을 減少시키기 위하여서는 科學的이고 合理的인 硏究가 체계적이며 繼續的으로 推進되어야 할 것이다. Wheels for rail way rolling stock is classified into solid wheels and tyres, having material of high cabon steel and same methodes of manufacturing. An attempt is made to present a plane and alternative plane to be able to manage reasonably and scientificaly manufacturing process for home made rail way wheels in future, analysing and understanding the present conditions of manufacturing process and difficulties process on rail way wheel being sit at the top for rail way car having old history, analysing and studying positively more efficient im provement methods. Also, scientific and reasonable studying should be drived systematically and continuonsly to improve difficult problems occuring on manufacturing process of rail was wheels and decrease inferior manufacture volume.
Column Chromatography 에 의한 바르비탈류 분리 정량법에 관한 연구
정인명,심수일,최광식,전성환,고미혜,부인향 한국약제학회 1979 Journal of Pharmaceutical Investigation Vol.9 No.4
The analytical method of phenobarbital and mephobarbital in the pharmaceutical preparation were investigated by the partition chromatographic method. The influence of 13 kinds of excipients and various kinds of ingredients such as 8 kinds of antipyretics and 5 kinds of antacids on the partition chromatographic analysis of phenobarbital and mephobarbital in the preparation were investigated. The results were not affected by materials with the exception of caffeine, aspirin and sulpyrin.