ハイブリッドヘルムホルツ-ヘリカルメタマテリアルは,サブステーションのブロードバンドターゲットによる騒音抑制のためのハイブリッドヘルムホルツ-ヘリカルメタマテリアルです

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Updated: Feb 14, 2026

Improving the Combustion Performance of a Hybrid Rocket Engine using a Novel Fuel Grain with a Nested Helical Structure
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Improving the Combustion Performance of a Hybrid Rocket Engine using a Novel Fuel Grain with a Nested Helical Structure

Published on: January 18, 2021

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Jingkai Nie1, Yi Tian1, Xing Li2,3

  • 1China Electric Power Research Institute Co., Ltd., Beijing 102211, China.

Materials (Basel, Switzerland)
|February 13, 2026
PubMed
まとめ

本研究では,サブステーションにおける低周波ノイズ制御のための新しい音響メタマテリアルを提示しています. 遺伝子アルゴリズムを使用して最適化され,高い音響吸収を達成し,環境と健康上のリスクを軽減します.

キーワード:
ヘルムホルツ共鳴器のヘルムホルツ共鳴器は,ヘルムホルツ共鳴器のヘルムホルツ共鳴器のヘルムホルツ共鳴器のヘルムホルツ共鳴器は,ヘルムホルツ共鳴器のヘルムホルツ共鳴器は,ヘルムホルツ共鳴器のヘルムホルツ共鳴器は,ヘルムホルツ共鳴器のヘルムホルツ共鳴器は,ヘルムホルツ共鳴器のヘルムホルツ共鳴器は,ヘルムホルツ共鳴器のヘルムホルツ共鳴器は,ヘルムホルツ共鳴器のヘルムホルツ共鳴器は,ヘルムホルツ共鳴器のヘルムホルツ共鳴器は,ヘルムホルツ共鳴器のヘルムホルツ共鳴器は,ヘルムホルツ共鳴器のヘルムホルツ共鳴器は,ヘルムホルツ共鳴器のヘルムホルツ共鳴器.アコースティックメタマテリアル低周波ノイズによる低周波ノイズ都市圏のサブステーション

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