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tunneling
(redirected from Barrier penetration)

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
tun·nel·ing  (tn-lng)
n.
In quantum mechanics, the passing of a particle through a seemingly impenetrable barrier without a cause that is explainable by classical physics.

tunneling  (tn-lng)


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Carrier-mediated processes in blood--brain barrier penetration and neural uptake of paraquat.
This innovative neutron imaging system serves an important role in the nation's integrated security capability with its unique combination of barrier penetration, three-dimensional representation, material identification, and operational flexibility.
 
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