fred perry outlet Weibull distribution of environm

Weibull distribution of environmentally friendly electronic energy saving lamp life of maximum likelihood estimation

Into, the solution of this three equations, you can have parameters, & and b of the maximum likelihood estimate. ... After the original experimental data on the maximum likelihood analysis, we found that electronic energy saving lamps on the environment accelerated life test, the test of time and the actual life of the following relations: less than 15W power as energy-saving lamps is usually referred to as small power energy-saving lamps,[link widoczny dla zalogowanych], referred to as power efficient than 15w lamps, within the same wattage, energy-saving lamp features the same internal components, we analyzed the 15W as the boundary, draw conclusions as shown in Table 2. + One white and one h,, ● ● . Σ-. . . . . . . . . . . . . . LΣo 4 Heng, et al: Weibull distribution of the environmental life of electronic energy saving lamp MLE 3413 Conclusion With the rapid development of modern science and technology, people need in the shortest possible time to obtain the product quality information. We focused on environmentally friendly products, electronic energy saving lamp life detection methods need to be resolved quickly the status of the experimental data, proposed an improved method of maximum likelihood estimation, Weibull distribution based on the environmental life of electronic energy saving lamps Preliminary data analysis methods. The method uses accelerated life test of the means of access to environmental electronic energy saving lamp life data, but also by Weibull distribution model and statistical methods,[link widoczny dla zalogowanych], to achieve a high stress experiments ask the equivalent conversion; using the improved maximum likelihood Estimation of energy saving lights environmentally friendly e-life data for analysis. This product through accelerated life testing,[link widoczny dla zalogowanych], test data will be converted to a normal stress of life data to quickly get the product life parameters, and environmental life of electronic energy saving lamps for rapid detection. The combination of theory and experiment for the and assessment 【References [1] Zhang Zhonghua. Measurement and Testing Technology is the development of [J]. China Institute of Metrology, 2006,17 (3) :1-3. [2] Mao Poetry Song, Lingling. Accelerated life test [M]. Beijing: Science Press ,2000:75-78. [3] Zhang Jianzhong, fees Crane Liang, Lingling. Weibull Distribution Parameter Estimation accuracy comparison [J]. Applied Mathematics 1982,5 (4): 1517. [4] Liu Zhimin. Statistics t distribution and application of new formula [J]. China Institute of Metrology, 2004,[link widoczny dla zalogowanych], I5 (3): 2 BU 25. [5] mohair training. On the statistical analysis of accelerated life test of the problem [J]. Mathematical Statistics and Applied Probability, 1989,4 (3) :376-387. [6] Xu Jiaqing, Lingling. Step test under exponential distribution of interval estimation EJ]. Mathematical Statistics and Applied Probability,[link widoczny dla zalogowanych], 1997,] 2 (2) :185-190. [7] Cheng Yiming. Step stress accelerated life testing the optimal design EJ3. Applied Probability and Statistics, 1994,10 (1) :52-61. E8] Mao poetry loose. Under the exponential distribution of step stress accelerated life testing statistical analysis [J]. Applied Mathematics, 1985,8 (3) :311-3l6. [9] 1AWIESSJF. StatisticalModelsandMethodsforLire-timeDate [J]. Newyork: JohnWiley8-Sons, 1982:108. [1olNELSONW. Acceleratedlifetesting-step-stressmodelsanddataanalysis [J]. IEEETransReliability, 1980,29:1 O3-108. [11] NELSONW. Acceleratedtesting: statisticalmodels, testplansanddateanalysis [M]. NewYork: JohnWiley & Sons, 199O150-55.

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