Share on Facebook Share on Twitter Step aside everything pumpkin, because Starbucks is set to go full-blown holiday. Just a few days into November, the coffee giant is launching its holiday collection Thursday, November 3. For the 25th year, Starbucks is back this week with that the first...
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With this model, a 2-step stress accelerated degradation test is proved to give similar lifetime estimation of the pc-white LEDs when compared to CSADT, but halve the sample size. Cai et al. developed a three-step stress accelerated test on the light source of a LED lamp. The test ...