Researchers create thin film polymer membranes capable of separating fluoride from chloride and other ions. Targeted ion selectivity by the filtering membranes could have important implications for ...

The authors are collecting data on the methods, scope, and depth of selective barriers to Internet access through Chinese networks. Tests from May 2002 through November 2002 indicate at least four ...

MT. PLEASANT -- Central Michigan University faculty member Anja Mueller has invented a method to filter 300 times more perchlorates from water than typical consumer filters currently on the market.

We conducted testing of only one URL per Web host based on our background knowledge, reinforced by subsequent testing, that when the default page of a site was filtered, the entirety of that site was ...

Even though, as discrete units, power sources will normally be able to comply with relevant regulations concerning electromagnetic interference (EMI), it is within the context of a complete system ...

When various parameters of a surface - such as roughness, step heights, or depths - are measured by any metrology method, only a representation of the surface characteristics is obtained. Nevertheless ...

Previously on The Filter Wizard (“Simulate Circuits in a Spreadsheet with some ‘Ladderal Thinking’ “), we saw how to use a spreadsheet such as Excel to calculate the frequency response of a filter ...