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대용특성을 활용한 스크리닝 검사에서 제한된 생산용량의 효과분석
최익준 ( Ik Jun Choi ),홍성훈 ( Sung Hoon Hong ) 한국품질경영학회 2008 품질경영학회지 Vol.36 No.4
Due to the rapid growth in automated testing and manufacturing systems, screening inspection becomes very attractive. In this paper, we investigate the effects of limited capacity on screening inspection using a surrogate variable. The model is developed under the assumption that the reprocessed and nonreprocessed items are produced by the same manufacturing process and therefore their quality characteristics are independently and identically distributed. Profit models are constructed which involve four price/cost components; selling price, cost incurred by imperfect quality, reprocessing and quality inspection costs. Methods of finding the optimal screening limits are presented, and a numerical example is given. Sensitivity analyses are also performed to study the effect of a process standard deviation on this model.
치매가 있는 후두암 환자에서 술 후 방사선치료 중 발생한 인두피부누공
김정준(Jung Jun Kim),강주용(Ju Yong Kang),최익준(Ik Joon Choi),이명철(Myung-Chul Lee) 대한두경부종양학회 2019 대한두경부 종양학회지 Vol.35 No.2
Pharyngocutaneous fistula is a relatively common, but serious complication after pharyngeal or laryngeal cancer surgery. It can cause wound infection, longer hospitalization period and sometimes carotid artery rupture which can be fatal. Recently, we experienced a 63-year-old larynx cancer patient who had dementia and alcoholic liver cirrhosis for underlying diseases. He underwent total laryngectomy and both neck dissection, and pharyngocuta-neous fistula occurred during postoperative radiotherapy. Pharyngocutaneous fistula during postoperative radiotherapy has not yet reported in the literature, and there are few reports about pre and postoperative management of dementia patient after head and neck cancer surgery. Therefore, we report this case with a brief review of literature.