Existing digital fringe projection (DFP) systems mainly use either horizontal or vertical fringe patterns for three-dimensional shape measurement. This paper reveals that these two fringe directions are usually not optimal where the phase change is the largest to a given depth variation. We propose a novel and efficient method to determine the optimal fringe angle by projecting a set of horizon...

1 Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Highfield, Southampton, SO17 1BJ, UK 2 Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, Singapore 138634, Singapore 3 Instiute for Life Sciences, University of Southampton, Highfield, Southampton, SO17 1BJ, UK 4 Ce...

energy crisis, global warming and other environmental issues are what motivate researchers to find new strategies to reduce energy consumption in buildings. recently, using phase change materials (pcm) in the building’s envelopes has drawn significant attention as an energy-saving method, which helps in increasing the building’s thermal capacity. in the present research, the effects of the main...

Unconventional superconductivity and other previously unknown phases of matter exist in the vicinity of a quantum critical point (QCP): a continuous phase change of matter at absolute zero. Intensive theoretical and experimental investigations on itinerant systems have shown that metallic ferromagnets tend to develop via either a first-order phase transition or through the formation of intermed...

The one-phase reduction of the Stefan problem, where the phase change temperature is a variable, is analysed. It is shown that problems encountered in previous analyses may be traced back to an incorrectly formulated Stefan condition. Energy conserving reductions for Cartesian, cylindrically and spherically symmetric problems are presented and compared with solutions to the two-phase problem.

Phase Change Memory is one of the best candidates for next generation non-volatile memory which can enlarge its applications segment, due to improved performances, and can fulfil the requirements for future down-scaling. Thermal, electrical and geometrical aspects controlling the functionality of a chalcogenide-based phase change memory cell are analysed. Processing condition effects, material ...

We present a theory of second phase conductive filaments in phase transformable systems; applications include threshold switches, phase change memory, resistive memory, and shunting in thin film structures. We show that the average filament parameters can be described thermodynamically. In agreement with the published data, the predicted filament current-voltage characteristics exhibit negative...

different glasses suitable for temperature sensing in the fiber optic sensors were studied in this article. the phase changes for eight different glass materials were calculated and results were compared. our results showed that extra dense flint glass is the most sensitive one, while pure silica results in the lowest phase change. in another study the effect of wavelength on the phase variatio...