Abstract We discuss the numerical aspects of Boltzmann transport equation (BE) for electrons in semiconductor devices, which is stabilized by Godunov’s scheme. The k-space discretized with a grid based on total energy to suppress spurious diffusion stationary case. Band structures arbitrary shape can be handled. In case, discrete BE yields always nonnegative distribution functions and correspon...

In current bridge aeroelastic analysis frameworks, predictions of flutter instability and buffeting response to wind fluctuations are treated as two separate procedures. The flutter instability is analyzed through the solution of a complex eigenvalue problem, offering information on how the self-excited forces influence bridge dynamics, especially the modal damping, and eventually drive the bri...

The nonlinear transfer of energy among modes of different frequencies on a vibrating string is investigated both theoretically and experimentally. The nonlinearity is associated with the wellknown variation of string tension caused by the vibration modes, but it is essential that at least one of the end supports has finite mechanical admittance if there is to be any mode coupling. If the nonrig...

In this paper we report effect of optical illumination on Silicon MOSFET. The MOSFET has been studied in respect of current voltage, transconductance admittance and scattering parameters. Gain analysis of the Silicon MOSFET is done in dark and under optical illumination. The device is fabricated using ATHENATM process simulator and the device simulation is performed using ATLASTM from SILVACO i...

With the rapid growth of renewable sources energy, single-phase rooftop photovoltaic inverters (SIs) connected to distribution network have received widespread applications in recent years. In such a network, asymmetric fault problems are likely occur and small-signal stability during faults becomes an important issue. The existing papers analyzed sequence impedance related issues three-phase t...

The electromechanical (EM) impedance technique using piezoelectric lead zirconate titanate (PZT) transducers for structural health monitoring (SHM) has attracted considerable attention in various engineering fields. In the conventional EM impedance technique, the EM admittance of a PZT transducer is used as a damage indicator. Statistical analysis methods such as root mean square deviation (RMS...

Abstract: Aerodynamic admittance is a key parameter affecting the analysis accuracy of the bridge buffeting response. However, few articles have covered the issue of the wide-body flat box girder with much smaller depth-width ratio (such as 1/12 studied in this paper). Therefore, to explore the real buffeting force of the wide-body flat box girder, experiments of the static force coefficients a...

To analyze oscillation phenomenon caused by the interaction between converters and an AC grid, impedance/admittance analysis method is a popular solution, in which each electrical component represented external matrix lumped formed for stability analysis. However, converter-integrated power systems considering typical collector subsystems (e.g., radial ring wind farms PV stations), impedance ne...

Let p be an odd prime. In this paper we study the relationship between degeneracy and decomposability in abelian crossed products. In particular we construct an indecomposable abelian crossed product division algebra of exponent p and index p. The algebra we construct is generic in the sense of [AS78] and has the property that its underlying abelian crossed product is a decomposable division al...