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6시그마를 이용한 타일 에폭시 접착제의 초기 접착 강도 향상에 관한 연구
이정호,배규익,하병욱,김소민,성시일 한국품질경영학회 2024 품질경영학회지 Vol.52 No.3
Purpose: This study aims to optimize the adhesive strength of epoxy adhesive when applied to tiles, addressing frequent issues of adhesion degradation observed in indoor interiors. The degradation often leads to costly repairs and maintenance, highlighting the need for improved adhesive formulations and application techniques. Methods: Employing the DMAIC (Define, Measure, Analyze, Improve, Control) methodology integral to Six Sigma and utilizing MINITAB for data analysis, this research focused on critical factors like curing time, application method, and mixing ratio. The Taguchi Experimental Design within the Design of Experiments (DOE) framework was applied to determine the impact of these parameters on adhesive strength. Results: The analysis facilitated by Taguchi’s method led to notable improvements in adhesive workability and consistency. It identified the optimal combination of factors that significantly increase adhesive strength, evidenced by the improvement in signal-to-noise ratio and I-MR control charts. Conclusion: By applying a structured statistical approach through Six Sigma and the Taguchi method, the study successfully pinpointed optimal conditions for epoxy adhesive application on tiles. This contributes to quality management in the manufacturing and application processes of epoxy adhesives, ensuring enhanced durability and reliability in indoor tiling applications. The findings offer a significant methodological framework for future material optimization research.
110M 허들선수의 신체적 특성이 허들기록에 미치는 영향
이정호 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.5
The purpose of this study was to identify the influence of physical trait factors on competition performance and the most important factor of the Hurdle record between start line and first hurdle. The implications of the study are as follows; Firstly, as to physique factors, standing height and length of leg showed significant difference with the reliability. Secondly, as to physical strength factors, power showed significant difference with the reliability. Thirdly, as to record factors, 50m and 100m showed significant difference with the reliability. Fourthly, as to physique factors, standing height and length of leg appeared to have great relations, while body weight and girth of chest do not in the records between start line and first hurdle. Fifthly, as to physical strength factors, power and agility appeared to have great relations, while flexibilty dose not in the records between start line and first hurdle. Lastly, as to record factors, 50m and 100m appeared to have great relations in the records between start line and first hurdle.