With the development of compressed air energy storage (CAES) technology, compressed air transmission pipelines are expected to operate under higher pressures and larger flow rates, making the issue of aerodynamic noise increasingly prominent. [pdf]
There are several standards and other approaches for determining the sound emissions of the equipment that can be relied on. This paper identifies existing options for determining sound power levels and interpreting and applying sound modeling around the equipment in an acoustical evaluation. [pdf]
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In the early 1950s, engineers began experimenting with porous carbon electrodes in the design of capacitors, from the design of and . is an that is an extremely porous "spongy" form of carbon with a high . In 1957 H. Becker developed a "Low voltage electrolytic capacitor with porous carbon electrodes". He believed tha. [pdf]
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