Tuyen V. Nguyen

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<italic>This paper presents a method for general reduced order analysis of linear circuits with a large number of independent sources. This type of circuit is used to model the power grid in power supply noise analysis for example. The large size of the linear circuit model renders circuit simulation inefficient. The large number of independent sources(More)
<italic>This paper presents a general method for computing transient sensitivities using the adjoint method in event driven simulation algorithms that employ piecewise linear device models. Sensitivity information provides first order assessment of circuit variability with respect to design variables and parasitics. This information is particularly useful(More)
This paper reviews the design challenges that current and future processors must face, with stringent power limits and high frequency targets, and the design methods required to overcome the above challenges and address the continuing Giga-scale system integration trend. This paper then describes the details behind the design methodology that was used to(More)
This paper presents a general rational block Lanczos algorithm for computing multipoint matrix Padé approximation of linear multiport networks, which model many important circuits in digital, analog, or mixed signal designs. This algorithm generalizes a novel block Lanc-zos algorithm with a reliable adaptive scheme for breakdown treatment to address two(More)
Activity Driven Adaptive Partitioning Transient Simulation (ADAPTS) has been developed to bridge the gap between circuit and logic simulation. ADAPTS can accept analytical models for arbitrary multi-terminal elements and can control the accuracy versus efficiency tradeoff automatically. In addition, ADAPTS can simulate stiff circuits efficiently and(More)
This paper presents a matrix partitioning scheme for the simulation of coupling capacitances in timing and noise analysis. An error criterion similar to the local truncation error of integration algorithms was developed to control the error due to this matrix partitioning algorithm. The major advantage of the algorithm is that it does not require iterations(More)
Movement behavior of an indicator species, zebrafish (Danio rerio), was analyzed with one-and two-12 individual groups before and after treatment with a toxic chemical, formaldehyde, at a low 13 concentration (1 ppm). After the boundary area had been determined based on experimental data, 14 intermittency was defined as the probability distributions of the(More)