Passage of casual signals through nonlinear inertialless circuits

Passage of High-frequency Signals through Power Transformers

We consider the possibility of passing high-frequency signals past power transformers forming part of an electrical grid. We first model a transformer, including its laminated core, to obtain asymptotic behaviour of currents and voltages in the secondary circuit. Having got this we are able to determine the effects of different by-pass mechanisms which might be tried to get the high-frequency s...

Slow Passage through Resonance for a Weakly Nonlinear Dispersive Wave

Development of Nonlinear Lattice-Hammerstein Filters for Gaussian Signals

In this paper, the nonlinear lattice-Hammerstein filter and its properties are derived. It is shown that the error signals are orthogonal to the input signal and also backward errors of different stages are orthogonal to each other. Numerical results confirm all the theoretical properties of the lattice-Hammerstein structure.

Nonlinear problem solving using intelligent casual-commitment

Complex interactions among conjunctive (simultaneous) goals motivate the need for nonlinear planners. Whereas the literature addresses least-commitment approaches that require breadth-first search and theorem proving style-reasoning to seek a possible answer, we advocate a casual-commitment approach that finds viable plans incrementally. In essence, all decision points (operator selections, goa...

Boosting Passage Retrieval through Reuse in Question Answering

Question Answering (QA) is an emerging important field in Information Retrieval. In a QA system the archive of previous questions asked from the system makes a collection full of useful factual nuggets. This paper makes an initial attempt to investigate the reuse of facts contained in the archive of previous questions to help and gain performance in answering future related factoid questions. I...