ultrafilter


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Related to ultrafilter: ultrafiltration

ultrafilter

[¦əl·trə′fil·tər]
(mathematics)
A filter base which has no properly subordinated filter base.
References in periodicals archive ?
* Ultrafiltered or "Ultraclean" grease - Such as MIL-G-81937 must not contain any particles greater than 35 [micro]m.
Ozone can be destructive to ultrafilters made of polysulfone, so ultrafilter and endotoxin retentive filter materials must be considered when deciding to use ozone (Amato & Curtis, 2002; Meltzer, 1997; Murphy, 1998).
The former possibility was investigated by examining NMR spectra of the small-molecule filtrate obtained by passing serum through a 10-kDa ultrafilter. As shown in Fig.
At first, we check that [F.sub.F] is an ultrafilter on X.
Let [PSI] be any neutrosophic ultrafilter on a set X; then there is a neutrosophic ultrafilter other than [PSI].
Second, he found that the tumor-inducing factor could be passed through a Berkefeld ultrafilter known to retain bacteria.
Andrew has a BSc from Brunel University and after a short career in retail where he quickly became a store manager for Lidl, he joined Ultrafilter, now Donaldson, and remained with them for nine years achieving the status of top salesman in the UK on four occasions.
Sascom Industrial Equipment embraces a range of sectors and its partners include such high-profile brands as ALMiG, Donaldson Ultrafilter, Donaldson Torit DCE, Inmatec, Dekker, Bauer, Bry-Air, Mikropor, MTA, SJERP and Ekomak Kazan -- all leaders in their own fields.
The division has partners that include Almig, Donaldson Ultrafilter, Donaldson DCE & Torit Inmatec, Dekker, Bauer, Bry-Air, Mikropor, MTA, SJERP and Ekomak Kazan, all leaders in their own field.
Ultra.air's Ultrafilter hi-tech equipment allows manufacturing plants using compressed air and technical gases to retain sterile environments.
(Quotes below from: Dennis Brown, COO of Aquamira Technologies; Robert Simpson of BDnP Filter Systems; Miles Maiden, CEO of Steripen; Shawn Hostetter, President of Katadyn North America; Ken Larson, consumer, retired educator, and avid outdoorsman; Gregory Collins Ph.D., Vice President of R&D for Nephros Inc (UF-40 Ultrafilter); John Amoroso, Search and Rescue for Kern County, CA; Mike Atkinson, Former Navy SEAL and Owner of Trident Tactical/Technical)
(b) If F is a filter and G is a grill such that F [subset] G, then there is an ultrafilter U on X such that F [subset] U [subset] G