The iterative phase retrieval method has the intrinsic weakness in computational speed. However, its ability to capture fine spatial phase structure is clearly the benefit much needed in characterizing image quality of an instrument in an end-to-end fashion. The empirical wisdom of any iterative process is that the convergence becomes a lot faster when the initial guess is close to the phase so...

Abstract In Australia, survivor advocacy groups have been closely engaged with the emergence and development of policy redress responses to institutional child abuse. Their activities influence in this respect under-researched. This study focuses on use Twitter, a tool increasingly employed by activist their lobbying repertoires. Using content thematic analysis, tweets 15 non-survivor led group...

The ultra-cold atomic system is a clean and highly controllable quantum system, which can be used for simulation of important physical problems in many fields such as condensed matter physics, high-energy astrophysics, chemical reactions. constructions optical lattices with different configurations are an prerequisite simulating diverse complex systems, especially solid materials. In this work,...

The Cimmino algorithm is an iterative used for solving linear equations ( Ax = b ) and part of a wider family algebraic reconstruction algorithms. Despite being in computed tomography digital signal processing, we present approach using it holographic projections the Fraunhofer region. Following work carried out by our group on Kaczmarz holography, earlier equation solver, compare performance s...

Potential aerosol release rates during wind erosion of soils have been quantified by such methods as sandSuspendable-size soil particles are released during wind erosion and blasting aggregates in laboratory settings (Alfaro et al., transported downwind, impacting regional air quality. Of particular concern are those particles with a mean aerodynamic diameter of 1998), measuring concentrations ...

Reconstruction of target images from phase-only hologram (POH) has the advantages high diffraction efficiency and no conjugate terms. The Gerchberg-Saxton (GS) algorithm is a classical applied to recover phase, but it most likely stagnantes after few iterations. This paper proposes hybrid iterative Amplitude Weighting Phase Gradient Descent (AW-PGD) generate higher-quality POH. Firstly, quadrat...

In this article, the first experimental demonstration of a non-iterative electronic dispersion compensation (EDC) solution implemented at transmitter using finite impulse response (FIR) filter optimized with Gerchberg-Saxton (GS) algorithm, is presented, for intensity-modulation and direct-detection (IM/DD) systems. The theoretical framework preliminary simulations have been presented in Part I...

Effects of negative input for 13 categories of grammatical error were assessed in a longitudinal study of naturalistic adult-child discourse. Two-hour samples of conversational interaction were obtained at two points in time, separated by a lag of 12 weeks, for 12 children (mean age 2;0 at the start). The data were interpreted within the framework offered by Saxton’s (1997; 2000) contrast theor...