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The underground pipes play an important role for our modern city. In order to avoid the accidents from underground pipes, it is necessary and meaningful to research on non-destructive evaluation technique based on ground penetrating radar (GPR). Simulation of electromagnetic scattering from underground targets is achieved by surface integral equations and method of moment (MoM) in this paper. A fast...
Ultra-supercritical units are complicated nonlinear systems, which have the characteristics of strong coupling, multi disturbance, large time delay and multi variable. In order to ensure the safe operation of the systems, we study the control of ultra-supercritical boiler units. First of all, ultra-supercritical units are used as the research object, and a high accuracy model is selected. Then the...
In this paper, we built potential and current models for quadruple-gate junctionless filed-effect transistor (QGJLFET) in subthreshold regime. A new potential distribution function is provided for the cross section of QGJLFETs, based on which we derived a more accurate expression of natural length for QGJLFETs. The result shows that a quadruple-gate FET is far more than a simple composition of two...
In this paper a potential based model for monocrystalline silicon thin film transistor (TFT) systems on glass (SOG) substrate from the accumulation to the strong-inversion region is developed. By solving the complete dimensional (1D) Poisson's equation, the potential distribution in the channel is obtained. The analytic drain current is expressed accurately base on the potential solution. Compared...
Mathematics accessibility for the blind attracts more and more attention in recent years. It aims to make mathematical documents and information accessible to the blind via computer and Internet. Several projects have made considerable progress in meeting the challenges in mathematics accessibility. One of the remaining challenges is the translation between mathematical formats used by sighted individuals...
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