This paper addresses the problem of reliably setting genetic algorithm parameters for consistent labelling problems. Genetic algorithm parameters are notoriously difficult to determine. This paper proposes a robust empirical framework, based on the analysis of factorial experiments. The use of a graeco-latin square permits an initial study of a wide range of parameter settings. This is followed...

Tetrahedrane-derived compounds consist of n crossed quadrilaterals and possess complex three-dimensional structures with high symmetry dense spatial arrangements. As a result, these hold great potential for applications in materials science, catalytic chemistry, other related fields. The Kirchhoff index graph G is defined as the sum resistive distances between any two vertices G. This article f...

A new 512 512 pixel phase-only spatial light modulator SLM has been found to deviate from being flat by several wavelengths. Also, the retardation of the SLM relative to voltage varies across the device by as much as 0.25 wavelength. The birefringence of each pixel as a function of address voltage is measured from the intensity of the SLM between crossed polarizers. To these responses are added...

We developed a fabrication technique of anti-reflective structures for applications in the visible spectral range. The depth and duty cycle of the grating structures optimised for wavelengths around 500 nm were calculated using rigorous diffraction theory. We used electron-beam lithography for the manufacturing of linear and crossed grating patterns with pitches of 200 nm and various duty cycle...