This paper presents the electrothermal model of inductors dedicated to the analysis of dc-dc converters in SPICE and the proposed method of determining parameters of this model. The parameter estimation algorithm of this model is described in detail. The results of verifi cation of the correctness of the model and the estimation procedure for arbitrarily selected choking coils are presented. Ve...

This paper describes a Spice-compatible circuit simulation model of submicron LDD MOS devices. It includes an enhanced model of our previous drain current characteristics (UNIMOS) and a new analytical substrate current model. For the drain current characteristics, new features of our previous model has been added for achieving good accuracy and convergency. In addition, the two-dimensional elec...

We propose here a fully Spice-oriented design algorithm of op-amps for attaining the maximum gains under low power consumptions and assigned slew-rates. Our optimization algorithm is based on a well-known steepest descent method combining with nonlinear programming. The algorithm is realized by equivalent RC circuits with ABMs (analog behavior models) of Spice. The gradient direction is decided...

Synthetic cannabinoids, often sold under labels such as 'spice', are a popular product sold in incense shops and on the internet. When inhaled, consumers often report experiences similar to marijuana use, thus making synthetic cannabinoids a popular street substitute for marijuana. With increasing use, the number of patients presenting to emergency departments due to the toxic effects of these ...

The field of optimisation is still not appropriately covered in modern computer programs for circuit analysis as SPICE. It was originally developed at the University of California at Berkeley. The last official release of SPICE 3f4 was published in 1992. It has numerous bugs, mainly memory leaks. In order to implement optimisation methods most bugs were tracked down and fixed. Several well-know...

BACKGROUND Measurement of dietary intake of spices is gaining significance because of recognition of their health promoting benefits as well as its use for risk assessment of contaminant exposures. Estimating intake of spices at the individual level, presents several challenges since various spices are used as an integrated part of a prepared food and consumed in amounts much smaller than other...

Variola and vaccinia viruses, the two most important members of the family Poxviridae, are known to encode homologs of the human complement regulators named smallpox inhibitor of complement enzymes (SPICE) and vaccinia virus complement control protein (VCP), respectively, to subvert the host complement system. Intriguingly, consistent with the host tropism of these viruses, SPICE has been shown...

Several positive carbon isotope excursions in Lower Paleozoic rocks, including the prominent Upper Cambrian Steptoean Positive Carbon Isotope Excursion (SPICE), are thought to reflect intermittent perturbations in the hydrosphere-biosphere system. Models explaining these secular changes are abundant, but the synchronicity and regional variation of the isotope signals are not well understood. Ex...

abstract aims: spices are sources of many bioactive compounds that can improve the taste of food as well as affecting the digestion and metabolism. along with that, they may also contain some substances as heavy metals, which have harmful effects on the body. the aim of present study was to assess the potential health risk of cr, cu, fe and zn contents of cardamom, curry powder and turmeric in ...