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심성보 한국러시아문학회 2002 러시아어문학 연구논집 Vol.11 No.-
The point of view of V. G. Belinsky on the human in his criticism about the Russian children's literature
두 가지 복합 이상원인 영향이 있는 공정에 대한 VSS X관리도의 경제적 설계
심성보,강창욱,강해운 한국산업경영시스템학회 2004 한국산업경영시스템학회지 Vol.27 No.2
In statistical process control applications, variable sample size (VSS) chart is often used to detect the assignable cause quickly. However, it is usually assumed that only one assignable cause results in the out-of-control in the process. In this paper, we propose the algorithm to minimize the function of cost per unit time and compare the economic design and the statistical design by use of the value of cost per unit time. We consider double assignable causes to occur with compound in the process and adopt the Markov chain approach to investigate the statistical properties of VSS chart. A procedure that can calculate the control chart's parameters is proposed by the economic design.
國産耐熱鋼 Austenite系 Stainless Steel(Ni-Cr)의 高溫에 있어서의 크리이프 特性에 時效熱處理가 미치는 影響(II)
金亨資,李守鐘,沈成輔 釜山工業專門大學 1982 論文集 Vol.23 No.1
When a structural member is subjective to a steady stress for a long time at elevated temperatures, a plastic deformation knowns creep occure the deformation increase withtime and remains permanent. Failure under creep conditions resembles a brittle fracture and occures without necking or other warning. The results of this paper are as follow. 1. The steady state creep rate for stress of the specimen of expressed the lowest rate value and that of 10hr. the highest one. 2. The creep equation of 30hr. aging treated specimen was determined as ε??=1.958×10??σ?? 3. The creep euqation of 100hr. aging treated specimen was determined as ε??=4.825×10??σ??