Article history: Received 10 June 2013 Received in revised form 21 November 2013 Accepted 29 December 2013 Available online 7 January 2014

A fascinating inverse problem that has been receiving considerable attention is the construction of realizations of random two-phase heterogeneous media with a target two-point correlation function. However, not every hypothetical two-point correlation function corresponds to a realizable two-phase medium. Here we collect all of the known necessary conditions on the two-point correlation functi...

In this paper, with the help of an intelligent reflecting surface (IRS), source (S) and destination (D) exchange information through two-way decode-and-forward relay (TW-DFR). We focus on phase optimization IRS to improve system sum rate performance. Firstly, a maximizing receive power (Max-RPS) method is proposed via eigenvalue decomposition (EVD) appreciable enhancement, which called Max-RPS-...

Relations are found between grain boundary character distribution, misorientation distribution and two-point orientation distribution. Some of these relations are analogies for polycrystals of the Debye-Anderson-Brumberger formula and Berryman formula established for two-phase composites.