Broadband suppression of aerodynamic pressure on the high-speed bluff body surface with periodic square-cavity acoustic metasurface

In this paper, a Multiphysics coupling simulation model of flow and acoustics is proposed using COMSOL software, and its results are verified trufit wrist brace by comparing with experimental results of others.Then, the aerodynamic pressure above the bluff body surface at a speed of 350 km/h is simulated.Moreover, a near-zero-impedance acoustic met

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Multi-faceted analysis provides little evidence for recurrent whole-genome duplications during hexapod evolution

Abstract Background Gene duplication events play an important role in the evolution and adaptation of organisms.Duplicated genes can arise through different mechanisms, including whole-genome duplications (WGDs).Recently, WGD was suggested to be an important driver of evolution, also in hexapod animals.Results Here, we analyzed 20 high-quality hexa

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