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. 2017 Feb 9;7:42283. doi: 10.1038/srep42283

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(a) The evolution plot of fitness. (b) The predicted scattering patterns in the main period of a part of optimization frequencies. (c) Ten optimal meta-atoms and its distribution. The side lengths (L₁, L₂, … L₁₀) are 0.8 mm, 2.9 mm, 1.0811 mm, 2.3059 mm, 2.5833 mm, 2.9 mm, 1.6558 mm, 2.7846 mm, 0.8 mm and 2.9 mm in sequence.