The presence of near-end interferences and echo path changes make it essential for an adaptive filter to vary its learning rate according to corresponding conditions. In this paper, a robust step-size control algorithm which is based on the optimization of the square of the bin-wise a posteriori error is proposed. To prevent the adaptive filter from diverging in the presence of interferences, c...

Depending on initial conditions, individual finite time trajectories of dynamical systems can have very different chaotic properties. Here we present a numerical method to identify trajectories with atypical chaoticity, pathways that are either more regular or more chaotic than average. The method is based on the definition of an ensemble of trajectories weighted according to their chaoticity, ...

Considering the vulnerability of double-layer grid space structures to progressive collapse phenomenon, it is necessary to pay special attention to this phenomenon in the design process. Alternate path method is one of the most appropriate and accepted methods for progressive collapse resistant design of structures. Alternate Path Method permits local failure to occur but provides alternate pat...

We demonstrate that the positive frequency modes for a complex scalar field in constant electric (Schwinger modes), three different gauges, can be represented as exact Lorentzian worldline path integral amplitudes. Although mathematical forms of mode functions differ each gauge, we show simple prescription worldlines' boundary conditions dispenses Schwinger all gauges (that considered) unified ...