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Harmonic contribution assessment is the precondition of harmonic responsibility-sharing and mitigating and its difficulty lies in real-time assessment of harmonic impedance. In order to solve this problem, this paper proposed a complex blind source separation (CBSS) based harmonic contribution assessment method. Use linear filter to abstract fast changing components from measuring data at the point...
We formulate the first-order nonlinear Mindlin plate equations in the finite element method to study the high frequency thickness-shear vibrations of quartz crystal plates. Iterative algorisms are utilized to solve the resulted nonlinear eigensystems. High performance computational software packages are integrated into our nonlinear finite element program to speed up the extremely large scale computations...
Electrical circuit parameters such as resistance and quality factor of a quartz crystal resonator cannot be determined through vibration analysis without considering the presence of dissipation. We know that electrical parameters are strongly affected by viscosity from material damping, manufacturing, and packaging processes. The results show that the motional resistance from theoretical calculation...
The methane production of the distiller's grains via lactic acid fermentation (shorter for the fermentation residue) was investigated, and the variable trend of pH values, alkali concentration and volatile fatty acids were examined. The results showed that: (1)The methane production rate of the fermentation residue was 146.32 mL/gTS, about equally with that of wheat straw and sunflower plate, which...
The Tibetan part of National Highway 317 locates in Southeast of Tibet. Geological disasters such as landslides, debris flows and rock-falls happen frequently in this highway and bring about great damage in peoples’ lives and properties. How to make clear the geological status will be designed and maintained by disaster’s father of National Highway 317. In this paper, the Landsat ETM data, with the...
It is one of the ultimate goals for modern biological research to fully elucidate the intricate interplays and the regulations of the molecular. We have thus developed a unified and powerful approach termed MTdGRN (multiple time-delayed gene regulatory network) to discover the underlying gene regulations that can span any unit(s) of time intervals. A decision tree was used to extract the time-delayed...
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