Condition monitoring of power electronics is gaining interest as expends to mission-critical applications. This paper offers a preliminary experimental study the viability using S-parameters and time-domain reflectometry measurements monitor degradation module. To this end, were performed on standard high current module which was artificially aged by cutting wire bonds one one. The demonstrates...

As the maximum frequency of electronics is rising, on-wafer measurements play an important role in modeling integrated devices. Most time, due to lack measurement accuracy beyond 110 GHz, such models are usually extracted at frequencies much below their working and subsequently extrapolated. The validity then mostly verified after fabrication complete chip, with a simple pass fail test. This st...

s is a time-frequency transform based on the concept of short-time fourier transform and wavelet transform. the main property of this transform that separate it from the discrete short-time fourier transform is variable frequency resolution. but in this transform the change of resolution of high frequencies to low frequencies is very high. so another transform as a modified s transform is intro...

the purpose of this project is the study of the natural gas {methane)steam reforming process through modeling and computer simulation. the operating parameters will be determined and then the? effect of changing these parameters on the conversion and purity of the final products will be studied. using computer simulation. the effect of the change in parameters will be studied along the lenght o...