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Entrance to HM Prison Edinburgh. A mantrap, security mantrap portal, airlock, sally port or access control vestibule is a physical security access control system comprising a small space with two sets of interlocking doors, such that the first set of doors must close before the second set opens.
Interlocking mechanisms are a common air shower feature to prevent both exits from being opened simultaneously, which would allow outside air to enter a tightly controlled environment. This requires occupants to stay inside until the decontamination cycle has been completed.
Clean-room design (also known as the Chinese wall technique) is the method of copying a design by reverse engineering and then recreating it without infringing any of the copyrights associated with the original design.
A cleanroom or clean room is an engineered space that maintains a very low concentration of airborne particulates. It is well isolated, well controlled from contamination , and actively cleansed. Such rooms are commonly needed for scientific research and in industrial production for all nanoscale processes, such as semiconductor manufacturing.
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A Massachusetts high school football player was hospitalized with a “traumatic brain injury” following a “disturbing” injury during a game on Thanksgiving Day, according to local officials.
If you're a Leo, Naskova's recommendation for your home cleaning resolution is to clean your mirrors once a week. "This isn't about vanity, but about the flow of energy and the confidence you gain ...
"The Clean Room", a TV series episode; Cleanroom suit, overall garment worn in a cleanroom; Cleanroom mat, mat with an adhesive surface that is placed at the entrances or exits; Clean-room design, the method of copying a design by reverse engineering and then recreating it without infringing any of the copyrights associated with the original design