Q. Su

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We present an efficient implementation of an approximate balanced truncation model reduction technique for general large-scale RLC systems, described by a state-space model where the "C" matrix in the time-domain modified nodal analysis (MNA) circuit equation "C\dot{x}=-Gx+Bu" is not necessarily invertible. The large sizes of the models that we consider(More)
We present a framework for passivity-preserving model reduction for RLC systems that includes, as a special case, the well-known PRIMA model reduction algorithm. This framework provides a new interpretation for PRIMA, and offers a qualitative explanation as to why PRIMA performs remarkably well in practice. In addition, the framework enables the derivation(More)
ZnO/HfO 2 :Eu nanocables were prepared by radio frequency sputtering with electrospun ZnO nanofi-bers as cores. The well-crystallized ZnO/HfO 2 :Eu nanoc-ables showed a uniform intact core–shell structure, which consisted of a hexagonal ZnO core and a monoclinic HfO 2 shell. The photoluminescence properties of the samples were characterized. A white-light(More)
In this letter, we report a novel V-doped SrTiO3 photocatalyst synthesized via electrospinning followed by a thermal diffusion process at low temperature. The morphological and crystalline structural investigations reveal not only that the V-doped SrTiO3 photocatalyst possesses a uniform, porous, fibrous structure, but also that some V(5+) ions are(More)
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