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Definitions (1703)

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transition region


Any region marking the area where one formula is used at smaller values of the independent variable (say, x, or z) and another formula is used at larger values of the independent variable. In this book, transition or interpolation formulas are suggested so the solution varies smoothly across the transition region.
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transitional brush discharge


A partial discharge from a nonconductive layer on a conductive substrate. The effective energy is highly dependent on the breakdown voltage of the layer and is intermediate between brush discharges an [..]
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transloading operations


The act of transferring material from one transport container to another.
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transmissivity


The fraction of radiant energy that is transmitted from the radiating object through the atmosphere to a target. The transmissivity is reduced due to the absorption and scattering of energy by the atm [..]
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transparency


Openness of an organization with regard to sharing information about how it operates.
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transportation security vulnerability analysis


A modified SVA process specifically designed to account for specific threats, consequences, vulnerabilities, risks, and security countermeasures of transportation activities including hazardous materi [..]
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transportation supply chain


Beginning with the raw material supplier, through the manufacturing and distribution process, to the final end-use customer, and any residuals management, including the transportation network in betwe [..]
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triac


A bidirectional rectifier (essentially two SCRs in parallel) that function as an electrically controlled switch for ac loads and having an npnpn structure that can be triggered into either forward or [..]
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tribocharging


Charge separation caused by rubbing of surfaces, creating triboelectricity.
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trigger event


Any change being made to an existing process, or any new facility being added to a process or facility, or any other activity that a facility designated as needing a pre-startup safety review. One exa [..]
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