ultrafilter

"ultrafilter", and thereby split it up into two fractions (a filtrate and a sediment that did not pass through the filter), the curious state of things occurred that neither of these fractions was any longer able to bring about fermentation, but that after being mixed with one another they recovered that capacity.

Nobel Prize in Chemistry 1929 - Presentation Speech 1966

If the ultrafilter U is nonprincipal, i.e. contains no finite sets, then the diagonal map is not onto the domain of

First-order Model Theory Hodges, Wilfrid 2009

C equivalent if and only if the set of indices at which they are equal is a set in the ultrafilter U.

First-order Model Theory Hodges, Wilfrid 2009

If we have an ultrafilter U over I, then we can construct a reduced product from C by making two elements of

First-order Model Theory Hodges, Wilfrid 2009

Nephros ultrafilter technology has also been selected for further development by the U.S. Marine Corps for purification of drinking water by soldiers in the field.

unknown title 2011

The Army has not to date issued a Request For Proposal RFP, and Nephros has no information regarding when or if an RFP applicable to the UF-40 ultrafilter may be put forth by the U.S. Army.

unknown title 2011

Nephros ultrafilter technology has also been selected for further development by the U.S. Marine Corps for purification of drinking water by soldiers in the field.

unknown title 2011

In response to a Request For Information RFI from the U.S. Army, Nephros submitted its UF-40 ultrafilter for consideration as part of the standard issue hydration pack for soldiers in the field.

unknown title 2011

The patented dual stage cold sterilization ultrafilter has the capability to filter out bacteria and, due to its exceptional filtration levels, filter out many viruses, parasites and biotoxins.

unknown title 2011

Nephros's proprietary dual stage cold sterilization ultrafilter will form the basis of the portable system.

unknown title 2011