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We demonstrate simultaneous spatial and arbitrary temporal pulse-shaping with a picosecond Yb-doped fiber laser system generating an output power > 10 W. By using a self-developed feed-back control algorithm on a single polarization optical pulse shaper, we obtained arbitrary complex pulse structures in the time domain with high accuracy and at high power level. Meanwhile, the pulse shaping in...
In this paper, we see the objectives of spectrum allocation as evidence information, and propose a novel channel selection method based on Dempster-Shafer (DS) theory. This channel selection method is used in potential game model, and we finally obtain the dynamic spectrum allocation engine based on DS theory and game theory. The simulation results satisfy the requirements of spectrum allocation,...
This paper presents a hybrid algorithm which combines chaos, immune and genetic algorithm to design the radial basis function neural networks. We use the chaos variable which has the characters of pseudo-randomness and irregularity in chaos theory to generate the initial population, ensuring the initial solutions would map into the whole solution space. Moreover, by introducing the affinity calculated...
This paper will report the hydrostatic pressure, temperature and DC bias coupling dependencies of the phase transition and dielectric properties of ferroelectric ceramics. Firstly, we will present our observation of the hydrostatic pressure-induced phase transition of PLZST ferroelectric ceramics. The phase transition pressure at different temperatures and DC biases was characterized by a 2 GPa hydrostatic...
This paper will report the hydrostatic pressure, temperature and DC bias coupling dependencies of the phase transition and dielectric properties of ferroelectric ceramics. Firstly, we will present our observation of the hydrostatic pressure-induced phase transition of PLZST ferroelectric ceramics. The phase transition pressure at different temperatures and DC biases was characterized by a 2 GPa hydrostatic...
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