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The ANSYS finite element software of high computational accuracy was used to perform joint simulation for asynchronous motors. The Maxwell 2D finite element model of 7.5kW squirrel-cage asynchronous motors was established. The model was imported into Simplorer to establish the joint simulation model. At the output end of the motor, the moment of inertia was set, and the state machine feature module...
In this paper, we propose an efficient and robust gross outlier removal method, called the Conceptual Space based Gross Outlier Removal (CSGOR) method, to remove gross outliers for geometric model fitting. In the proposed method, each data point is mapped to a conceptual space by computing the preference of "good" model hypotheses. In the conceptual space, the distributions of inliers and...
Through Silicon Vias (TSVs) have been mostly modeled assuming that the TSV metal-insulator-semiconductor (MIS) interface is not biased and silicon substrate is just a lossy, low conductive medium. These modeling methods are based on small signal analysis and don't consider semiconductor carrier accumulation or depletion due to static biasing or large signals. This paper argues that the complementary...
In this paper, Near-infrared spectroscopy (NIRS) was introduced into the field of Chinese herbal medicines and a rapid analytical method which can not only differentiate the two species of Fructus forsythiae, QingQiao (QQ) and LaoQiao (LQ), but also determine the contents of Phillyrin, Forsythoside A and Moisture in Fructus forsythia was established. The total content of volatile oil in Fructus forsythia...
In this paper, near-infrared spectroscopy (NIRS) combined with discriminant analysis was used as a qualitative tool to distinguish Fructus forsythiae from different geographical origins by collecting and analysing the NIR spectra in the range of 12000-4000cm-1. NIR spectra were analyzed by two methods: clustering analysis and discriminant analysis. In the former, the second derivative and Norris smoothing...
In today's society, it's a phenomenon that many other varieties of yam are pretended to be tie gun yam in the market. In this paper, Near infrared(NIR) spectroscopy combined with conformity test was used to establish a method which can quickly discriminate tie gun yam from other varieties. Firstly, the NIR spectra of 200 samples of yam, including 45 tie gun yam and 155 non-tie gun yam, were acquired...
LEDs have becoming the most suitable candidate replacing traditional fluorescent lamps because of its energy-efficient, the introduction of high brightness LEDs with white light and monochromatic colors have led to a movement towards general illumination. This revolutionizes the optoelectronics market, enabling engineers to use LEDs for general lighting applications as well as medical, indoor lighting...
A new analytical nonlinear switched reluctance machine (SRM) model for rapid calculation is presented in this paper. It proves to be satisfactory both in accuracy and calculation speed. The model of SRM and its drive system (SRD) is then modularly developed as a sub-system library for airborne power system library based on Dymola/Modelica, a modeling software especially suitable for complex multi-disciplinary...
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