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    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/78149

    題名: Inference from lumen degradation data under Wiener diffusion process
    作者: Tsai, Tzong-ru;Lin, Chin-wei;Sung, Yi-ling;Chou, Pei-ting;Chen, Chiu-ling;Lio, Yuh-long
    貢獻者: 淡江大學統計學系
    關鍵詞: Arrhenius law model;draft parameter;exponential law model;power law model;step-stress loading method
    日期: 2012-09
    上傳時間: 2012-09-06 14:50:24 (UTC+8)
    出版者: IEEE Reliability Society
    摘要: The lumen degradation of light emitting diodes subject to increasing stress loading is investigated by using a cumulative damage model. The cumulative damage process is taken as a Wiener diffusion process with a drift which depends on two stress loadings. General statistical inferences on the parameters and percentiles of the light emitting diode lifetime distribution are presented based on the cumulative damage measurements, collected from a two-variable constant-stress loading accelerated degradation test. Approximate lower s-confidence bounds of the light emitting diode lighting lifetime percentiles are given using the Fisher information of the maximum-likelihood estimators, and Bonferroni's inequality. The application of the proposed method is illustrated by a lumen cumulative damage data set of high power light emitting diodes.
    關聯: IEEE Transactions on Reliability 61(3), pp.710-718
    DOI: 10.1109/TR.2012.2207533
    顯示於類別:[統計學系暨研究所] 期刊論文


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