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예취 및 질소시비가 Orchardgrass 그루터기의 수용성탄수화물함량의 계절변화에 미치는 영향
전우복,김동암,윤창,손문호,서석봉,김동후 ( W . B . Chun,D . A . Kim,C . Yoon,M . H . Son,S . B . Seo,D . H . Kim ) 한국축산학회 1985 한국축산학회지 Vol.27 No.8
The total water-soluble carbohydrates (TSC) in orchardgrass stubble accumulated during the period of cool season; and declined when the weather was hot and dry. During the period of cool season, the reserve level decreased when a new leaf emerged after the start of plant growth and then increased rapidly, however, decreased after seed ripening. Levels of carbohydrate content decreased sharply following the top-dressing applied simultaneously with the cutting. When the top-dressing was followed by the period of hot dry weather, carbohydrate reserves were often reduced to critical levels. In such weather conditions, the top-dressing on orchardgrass should be restricted.
이수용(Su-Yong Lee),이우현(Woo-Hyun Lee),김동후(Dong-Hoo Kim),전정도(Jung-Do Chun),전언찬(Eon-Chan Jeon) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4
On this paper, first, we make the NC-code of Insert die-casting as the object model using PowerMill. And then, analyze cutting force by Toolpath in Insert mold machining using Production Module of AdvantEdge which is cutting force analysis program. After that, we come up with the optimum conditions of productivity improvement throughout the analysis result of before and after optimization of cutting force, machining time variation, and surface roughness by changing min tangential force to 80, 85, 90% of max tangential force.
절삭력 최적화를 이용한 금형의 생산성 및 표면조도 향상에 관한 연구
전언찬(Eon-Chan Jeon),이수용(Su-Yong Lee),이우현(Woo-Hyun Lee),김동후(Dong-Hoo Kim),전정도(Jung-Do Chun) 한국생산제조학회 2011 한국생산제조학회지 Vol.20 No.6
The mold is widely used for mass production in present industry. Also, product cycle time is faster, for this request, high productivity improvement in mold machining is required. And, In case of mold manufacturing company, the delivery shortening is required to quickly manufacture new product. Therefore, we aim for the delivery shortening though the method of machining time shortening in mold machining. On this paper, first, we made the NC-code of Insert die-casting as the object model using PowerMill. And then, analyzed cutting force by Toolpath in Insert mold machining using Production Module of Advantedge which is cutting force analysis program. After that, we came up with the optimum conditions of productivity improvement throughout the analysis result of before and after optimization of cutting force, machining time variation, and surface roughness by changing min tangential force to 80, 85, 90% of max tangential force.