Electronic air cleaner

Electronic air cleaner A device used to clean particulate matter from a gas stream, consisting of a fan and an electrostatic precipitator. 

Tends to burn visually cleaner at the exliaust tailpipe, since it operates in a closed-loop electronic mode (oxygen sensors interacting with the powertrain control module) to maintain an ideal air/fucl ratio of 14.7 1. 

After cleaning the polished surface with isopropyl alcohol in the sonic cleaner, the section is dried with forced warm air and is ready for study in reflected light. Effects of stains and etches can be removed by repolishing the section with 0.03-pm alumina and Texmet . Suitably polished and etched surfaces can be examined with a scanning electron microscope. 

Room-temperature superconductivity would transform the electrical-power, transportation, and consumer-electronics industries. The era of copper s dominance would end, leading to a new generation of smaller and more efficient home appliances, such as refrigerators, washing machines, and air conditioners. Societies whose technologies make use of these room-temperature superconductors would he quieter, cleaner, and more energy efificient... 

The applications of PCs are extensive, emanating into all types of markets. A sample would include electronic connectors, switches, terminal blocks, computer disc packs, storage modules and housings, appliance power-tool housings, vacuum cleaner impellers, fan and air-conditioner grills, automotive instrument panels, indoor and outdoor lighting diffusers, medical kidney dialysers and blood oxygenators, and a host of others. 

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