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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)
ii-To my parents, Huan, and Rucheng-iii-ACKNOWLEDGMENTS I would like to show my sincerest gratitude to my co-advisors, Professor Edwin K. P. Chong and Professor Ness B. Shroff for giving me copious amounts of insight-ful guidance, constant encouragement, constructive criticism, and expertise on every subject that arose throughout all these years. Their(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)
OBJECTIVE To study the qualitative and quantitative determination of Zhuang medicine Jasmini Sambacis Flos and establish its quality control standard. METHODS Macroscopic, microscopic and TLC identification were adopted to carry out the qualitative identification, the mensuration of inspection items and extractum were according to the Chinese(More)
OBJECTIVE To establish TLC scanning method for the determination of camptothecin in Camptotheca acuminata fruit, and analysis the dynamic accumulation of camptothecin in Camptotheca acuminata fruit to find out the best collection period. METHODS Silica gel H-CMC-Na thin layer plate was adopted in the determination with chloroform-acetone (7 : 3) used as(More)
The aim of this study was to perform a thermodynamic and kinetic investigation on the crucial factors affecting the cocrystallization between adefovir dipivoxil (AD) and saccharin (SAC). Phase solubility diagrams and ternary phase diagrams were constructed based on the solubility data of AD, SAC and their cocrystals in ethanol, isopropanol and ethyl acetate(More)
Temperature dependent He-irradiation-induced ion-beam mixing between amorphous silicon oxycarbide (SiOC) and crystalline Fe was examined with a transmission electron microscope (TEM) and via Rutherford backscattering spectrometry (RBS). The Fe marker layer (7.2 ± 0.8 nm) was placed in between two amorphous SiOC layers (200 nm). The amount of ion-beam mixing(More)
Despite recent interest in amorphous ceramics for a variety of nuclear applications, many details of their structure before and after irradiation/implantation remain unknown. Here we investigated the short-range order of amorphous silicon oxycarbide (SiOC) alloys by using the atomic pair-distribution function (PDF) obtained from electron diffraction. The(More)