noise screening 中文意思是什麼
noise screening
解釋
噪聲屏蔽-
3. an elementary attempt has been made to enhance the signa - to - noise ratio of pqc sensors using cholestyramine particles embedded in the sensing film. bor more, an all - purpose sulpha - drugs pqc sensor was developed whch can be used for screening practice
對如何提高基於離子對締合物的壓電藥物傳感器的信噪比進行了初步探索，發現在傳感膜層嵌入考來烯胺樹脂顆粒對磺胺藥物壓電傳感器的信號有明顯的擴增作用。 -
Abstract : metallic foam or porous materials were developed at the end of the 80 " s and applied to industry at the beginning of the 90 " s. they have excellent physical properties, especially damping characteristis, so they are widely used for vibration insulation, noise elimination, electromagnetic screening and so forth. a description is given of the “ casting and foaming ” method for the fabrication of these metallic foams, and a detailed account of their mechanical and damping properties
文摘:金屬泡沫或金屬多孔材料是80年代後期國際上迅速發展起來的一種物理功能與結構一體化的新型工程材料.它所具備的多種優異物理性能特別是阻尼性能已引起廣泛關注，並在消聲、減震、分離工程、催化載體、屏蔽防護、吸能緩沖等一些高技術領域獲得了廣泛應用.文章著重介紹了鑄造發泡法製造鋁泡沫材料的技術難點.對金屬泡沫材料的力學性質和阻尼特性進行了詳細介紹.為金屬泡沫材料開發、應用提供基礎知識和信息
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