At millimeter waves (MMW), the current state of research in computational dosimetry is mainly relying on flat-surface tissue-equivalent models to simplify exposure assessment by disregarding geometrical irregularities characteristic conformal surfaces realistic models. However, this can lead errors estimation dosimetric quantities non-planar body parts with local curvature radii comparable wave...

We analyze the problem of controlling parameter-dependent systems. We introduce the notion of averaged control according to which the quantity of interest is the average of the states with respect to the parameter. First we consider the problem of controllability for linear finite-dimensional systems and show that a necessary and sufficient condition for averaged controllability is an averaged ...

in this paper, a two-dimensional reynolds averaged navier-stokes (rans) model is developed to simulate the shoaling, breaking and overtopping of a solitary wave over a vertical breakwater. turbulence intensity is described by using a k turbulence closure model and the free surface configuration is tracked by volume of fluid (vof) technique. to validate the numerical model the simulation result...

influences of three prevalent mass transfer models, on modeling of cavitation, are investigated numerically. two models of singal and zwart are implemented in an open source code, open foam, while the kunz model is available for cavitation modeling. each model is used to flow simulation through a venturi. volume of gas fraction, in the specified sections of conduit, is compared to experimental ...

Computer simulation of switching power converters is complicated by the discontinuous (switching) nature of the converter waveforms. When switching details of the waveforms are of interest, detailed simulations requiring extremely small time steps are needed. On the other hand, so-called averaged models allow capture of lowfrequency converter dynamics (of interest for example when closing the f...

An averaged model of a coupled-inductor boost converter using the piecewise complementarity model of the converter under sliding motions is obtained. The model takes into account the idealized voltagecurrent characteristic of passive switches (diodes) present in the converter. Because of its lower complexity, the averaged model is more suitable for control design purposes as compared with the l...