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압축공기를 이용한 3차원 부직포 구성섬유의 배향구조 형성에 관한 연구
노현우,윤민주,조기순,김한성,No, Hyun-Woo,Yun, Min-Ju,Cho, Ki-Soon,Kim, Han-Seong 한국섬유공학회 2010 한국섬유공학회지 Vol.47 No.5
3-dimensional nonwoven fabrics show high loft performance owing to their dominant fiber orientation in the thickness direction. A high loft performance is a fundamental requirement for applications to cushion materials and pre-filters etc. In this study, the process was optimized to obtain 3-dimensional nonwoven fabrics with improved physical properties. The process conditions, such as the distance between the air ejection nozzles, compressed air pressure and web sustaining mesh size, were examined to develop a fiber orientation in the thickness direction of nonwoven fabrics. The mechanical properties and fiber orientation distribution function (ODF) were compared.
산지전용허가 표고기준 개선방안에 관한 연구 -산지관리법과 국토의 계획 및 이용에 관한 법률을 중심으로
노현우 ( Hyun Woo No ),최형석 ( Hyung Seok Choi ) 한국농촌계획학회 2011 농촌계획 Vol.17 No.3
The altitude criteria of ``Management of Mountains District Act`` and ``National Land Planning and Utilization Act`` are different because the adaptive reuse permissions on mountains district by two acts have been operated individually and each criteria has some problems for application. This study aims to suggest proposals for improvements of altitude criteria by two acts. The altitude criteria of the duel legal systems were researched by literature review and inherent issues were derived by interview with public officers and GIS tools applied to cases. The results are as follows : First, duel criteria systems need to be integrated based on the format by ``Management of Mountains District Act``. Second, the criteria index(50/100) by ``Management of Mountains District Act`` need to be adjusted due to the preserved area ratio in mountains district and the each definition of ``the peak point of the mountain`` and ``the tail of the mountain`` can be changed as ``the highest point within the same slope(including ridge)`` and as ``the average of the highest and the lowest point on boundary between the mountain district and the other land use district``. Third, the method of slope division may be determined by the conditions of local areas and the discrepancy between the two slopes in common boundaries must be adjusted. Finally, the maps containing preservation areas and development areas need to be notified.