A practical compact antenna test range (CATR) requires good quiet zone quality for characterization. This paper addresses the phase profile of CATR from known intensity pattern spatial domain and Fourier based on a combined alternating projection algorithm. The proposed algorithm is composed Gerchberg–Saxton (GS) Hybrid Input–Output (HIO) algorithms two with perturbation (SPP) work collaborativ...

Vinblastine is a powerful antitumor drug in widespread use in cancer chemotherapy. The mechanism by which vinblastine effects its unusually potent antiproliferative action is by inhibition of mitosis (Jordan et al., 1991), and often has been ascribed to its capacity to depolymerize mitotic spindle microtubules (e.g. Malawista et al., 1968; Wilson and Bryan, 1974). However, in recent studies we ...

We study an equation lying ‘mid-way’ between the periodic HunterSaxton and Camassa-Holm equations, and which describes evolution of rotators in liquid crystals with external magnetic field and self-interaction. We prove that it is an Euler equation on the diffeomorphism group of the circle corresponding to a natural right-invariant Sobolev metric. We show that the equation is bihamiltonian and ...

The iterative algorithm of Papoulis-Gerchberg is simple and efficient solution to signal reconstruction problem. However, the PG algorithm is usually slowly convergent, and a band-limited signal practically is difficult to be obtained. In this work, we present and discuss an innovative approach for restoring lost data with a specific preprocess for meeting boundary conditions of real orthogonal...

Direct imaging of extra-solar planets in the visible and infrared region has generated great interest among scientists and the general public as well. However, this is a challenging problem. Difficulties of detecting a planet (faint source) are caused, mostly, by two factors: sidelobes caused by starlight diffraction from the edge of the pupil and the randomly scattered starlight caused by the ...

We study an equation lying ‘mid-way’ between the periodic HunterSaxton and Camassa-Holm equations, and which describes evolution of rotators in liquid crystals with external magnetic field and self-interaction. We prove that it is an Euler equation on the diffeomorphism group of the circle corresponding to a natural right-invariant Sobolev metric. We show that the equation is bihamiltonian and ...