prefilter
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prefilter — a small mechanical filter attached to the input of another filter, usually biological. It is there to make sure that the biofilter does not get clogged with gunk, decreasing its effectiveness … Dictionary of ichthyology
prefilter — n. * * * … Universalium
prefilter — pre·filter … English syllables
prefilter — noun Etymology: pre + filter : a preliminary filter * * * n … Useful english dictionary
overflow prefilter — a device removing particles of algae, detritus, and other small particles before the water enters a trickle filter in aquaria. The floss in the prefilter should be replaced weekly as it soon clogs … Dictionary of ichthyology
Air dryer — A compressed air dryer is a device for removing water vapor from compressed air. Compressed air dryers are commonly found in a wide range of industrial and commercial facilities. The process of air compression concentrates atmospheric… … Wikipedia
Common Unix Printing System — Infobox Software name = Common Unix Printing System caption = CUPS Logo author = Michael Sweet developer = Apple Inc., who purchased it from Easy Software Products released = 1999 06 09 latest release version = 1.3.9 latest release date = release … Wikipedia
Air purifier — An air purifier is a device which removes contaminants from air. Air purifiers are commonly marketed as being particularly beneficial to allergy sufferers and asthmatics, and at reducing second hand tobacco smoke. Use of purifiers Dust, pollen,… … Wikipedia
Quantitative feedback theory — (QFT), developed by Isaac Horowitz (Horowitz, 1963; Horowitz and Sidi, 1972), is a frequency domain technique utilising the Nichols chart (NC) in order to achieve a desired robust design over a specified region of plant uncertainty. Desired time… … Wikipedia
Kodaikanal Solar Observatory — Kodaikanal Solar ObservatoryOrganizationIndian Institute of AstrophysicsLocationKodaikanal, IndiaCoordinatescoord|10|13|50|N|77|28|7|E|Altitude 2,343 meters (7,687 ft) Webpage [http://www.iiap.res.in/centres kodai.htm Kodaikanal Observatory]… … Wikipedia
