国产麻豆一精品一av一免费,日韩精品中文字幕一区二区三区 ,国产一区美女,欧美一性一交

關鍵詞：interval censored samples partially accelerated 

摘要：In this paper, a statistical analysis method is proposed to research life characteristics of products based on the partially accelerated life test. We discuss the statistical analysis for constant-stress partially accelerated life tests with Lomax distribution based on interval censored samples. The EM algorithm is used to obtain the maximum likelihood estimations(MLEs) and interval estimations for the shape parameter and acceleration factor.The average relative errors(AREs), mean square errors(MSEs), the confidence intervals for the parameters, and the influence of the sample size are discussed. The results show that the AREs and MSEs of the MLEs decrease with the increase of sample size. Finally, a simulation sample is used to estimate the reliability under different stress levels.

數學季刊雜志要求:

{1}基金項目格式：項目來源+項目編號。

{2}資助聲明,如果文章有資助，則需要列明。作者必須列明所有外部資金來源，并描述資助者或發起人在整個研究過程(從研究設計到論文提交)中所扮演的角色。

{3}參考文獻：論著文章要求15條以上，主要引用近3～5年內的新文獻。按GB7714-87《文后參考文獻著錄規則》采用順序編碼著錄，依照其在文中出現的先后順序用阿拉伯數字標出。

{4}中文摘要及關鍵詞：中文摘要一般在200字之內，包括目的、方法、結果、結論四個要素。

{5}稿件請寫清作者的真實姓名、工作單位、詳細通訊地址、郵政編碼、聯系電話及電子信箱等相關資料。

注：因版權方要求，不能公開全文，如需全文，請咨詢雜志社