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An electrical conductivity meter (EC meter) measures the electrical conductivity in a solution. [1] It has multiple applications in research and engineering, with common usage in hydroponics , aquaculture , aquaponics , and freshwater systems to monitor the amount of nutrients, salts or impurities in the water.
A typical "portable" dehumidifier can be moved about on built-in casters. A dehumidifier is an air conditioning device which reduces and maintains the level of humidity in the air. [1] This is done usually for health or thermal comfort reasons or to eliminate musty odor and to prevent the growth of mildew by extracting water from the air. It ...
It may be said that radio interference and its correction arose with the first spark-gap experiment of Marconi in the late 1800s. [3] As radio communications developed in the first half of the 20th century, interference between broadcast radio signals began to occur and an international regulatory framework was set up to ensure interference-free communications.
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Created Date: 8/30/2012 4:52:52 PM
In 2006, Gemstone began producing a more durable series of hardback reprint collections designed by Michael Kronenberg. Similar to the DC Archives and Marvel Masterworks series, the EC Archives superseded Cochran's original annotated Complete EC Library (of black-and-white stories) by reprinting sequential compilations of EC titles in a full-color, hardback archival format with new annotations.
ARSAT data center (2014). A data center is a building, a dedicated space within a building, or a group of buildings [1] used to house computer systems and associated components, such as telecommunications and storage systems.
The final digit of a Universal Product Code, International Article Number, Global Location Number or Global Trade Item Number is a check digit computed as follows: [3] [4]. Add the digits in the odd-numbered positions from the left (first, third, fifth, etc.—not including the check digit) together and multiply by three.