The multiply type-? censoring represented that all units in life test were terminated at different times. For estimations of Weibull parameters, it was easy to
The traditional manner to design public transportation system is to sequentially design the transit network and public bicycle network. A new public transportat
In order to analyze the possibility of detecting defects in bend pipe using low-frequency ultrasonic guided wave, the propagation of T(0,1) mode and L(0,2) mode