Taiki Matsumura

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This paper investigates the effects of the number of coupon and element tests on uncertainty in element failure stress. In aircraft structural design, failure stress is first obtained from coupon tests, which is then used in predicting failure stress of structural element under combined loads. The mean and standard deviation of failure stress are expressed(More)
A 1-V level operation, 150-mW, 59-cc card-size optical network unit (ONU) with the battery backup time of 5 hrs or more continuous ONU operation from one AAA-size cell, was developed for 50-Mbit/s synchronous transfer mode passive double star (STM-PDS) optical subscriber systems.
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