Build Faster Excel Workflows Using FILTER, IFS, XLOOKUP, and LET for Real-World Data

Learn the difference between Excel COUNT and COUNTA, plus TEXTBEFORE and TEXTAFTER tricks, so you clean text and totals with ...
Houston Chronicle

How to Include All Rows for Filters in Excel

Microsoft Excel helps you sort your data for analysis by providing a Filter command. For example, when you want to sort number values from low to high, this Filter command will insert a clickable ...
POWER Magazine

Considerations for Automatic Filtration of Cooling Tower Water Systems

Waste reduction and process efficiencies are key for companies wanting smoother operations. As various industries, including power generation, seek ways to improve operational efficiency, cooling ...
EDN

Practical applications of digital filters

To provide additional insight in the application and impact of precision in digital filter, examples of two practical digital applications are shown. The first example is an equalization of a small ...
EDN

Filter banks, part 2: Optimization and synthesis

Before we proceed, let's quickly review our filter bank example. Our example, shown in Figure 1, is a size 16 DFT filter bank. The color scheme shows the sample rate change where a 16 MHz input sample ...
Consumer Reports

Air Filter Buying Guide

Running your furnace, central air, or heat pump probably constitutes a big part of your utility bill. But it’s a small, often inexpensive part—the air filter—that keeps these heating and cooling ...
esa.org

SWISH::Filter - Perl extension for filtering documents with Swish-e

use SWISH::Filter; # load available filters into memory my $filter = SWISH::Filter->new; # convert a document my $doc = $filter->convert( document => \$scalar_ref ...