prefiltered

In And Then There's This, an impressionistic account of the viral culture on the Internet, Bill Wasik describes how "the network of political blogs, through a feedback loop among bloggers and readers," has produced a machine that supplies the reader with "prefiltered information" supporting his or her own views.

The News About the Internet Massing, Michael 2009

The prefiltered water is collected by perforated drainage pipes laid at the bottom of the coarse gravel layer, and the discharge rate regulated by a valve placed at the filter control box.

8. Classification of roughing filters 1996

The lower coarser gravel layer acts as filter support and allows an even abstraction of the prefiltered water through perforated drainage pipes.

8. Classification of roughing filters 1996

Use of a single filter layer and false filter bottom offers a favourable design alternative for intake filters, as filter material mixing is no longer possible, and even abstraction of the prefiltered water is guaranteed.

8. Classification of roughing filters 1996

The pilot plant investigations compared the developed filter resistance of different slow sand filters fed either with untreated or with prefiltered turbid river water.

1. Historical development and experience with water treatment 1996

Raw water of moderate turbidity can be used as washwater, and prefiltered water for final sand cleaning.

8. Classification of roughing filters 1996

Filter operation is restarted by draining the prefiltered water into the river or to waste until it turns clear.

8. Classification of roughing filters 1996

The first step in the cleaning process is the closing of the valve on the prefiltered water line.

8. Classification of roughing filters 1996

Since our impression of the world results from many fixation points (our eyes move and fixate 3 or 4 times a second), it is plausible tat our vision system has access to two images: a normal colour image and a second yellow-prefiltered image

Naturejobs - All Jobs 2009

In the central part of our own vision, the light striking the retina is prefiltered by a yellow macular pigment.

Naturejobs - All Jobs 2009