closed system


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closed system

n.
A physical system that does not interact with or receive input from other systems, especially one that obeys conservation laws.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
US market report: closed system products from 15 major US online retailers
The project is integrated into the flood plain to allow the passage of flood waters and the project is a closed system. All irrigation and storm water discharge is recycled, ensuring that there is no topsoil or nutrient discharge to rivers of the Murray Darling Basin.
According to the company, the X-LAB device isolates and purifies target cell fractions from blood, bone marrow or leukapheresis in a "closed system," with precision and high efficiency.
Procedures: Two storage conditions (room temperature, 22[degrees]C; refrigerated temperature, 4[degrees]C) and three handling techniques (closed system transfer device, nonclosed dispensing pin, and manufacturer-supplied vial stopper) comprised six treatment groups (three replicates/group).
In a closed system model, new job arrivals are only triggered by job completions [3].
Therefore, whether fluid is being collected, transported, or disposed, a closed system stays closed--from collection through cleaning.
Cole-Parmer has introduced the PBI Shredder SG3, a device that creates a closed system to safely prepare samples.
The collection and test system is a closed system; once the broth media is inoculated, the tube remains closed for the remainder of the test.
entropy (often conceived of as disorder) decreases over time in a closed system." Of course, the correct statement would be "...
The closed system reduces risk of cross contamination and the lockable end cap prevents inadvertent suctioning.
VWR disposable tissue grinders feature a closed system that enables a specimen to be ground in a sealed container, helping to prevent contact with the sample.