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A device that cushions the ends of rail vehicles against each other. Buffer stop or bumper post The barrier installed at the end of a dead-end track to prevent rail vehicles from proceeding further. Builder's plate The nameplate fitted by their manufacturer to locomotives and items of rolling stock. Bulkhead flatcar
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Message authentication code. In cryptography, a message authentication code ( MAC ), sometimes known as an authentication tag, is a short piece of information used for authenticating and integrity -checking a message. In other words, to confirm that the message came from the stated sender (its authenticity) and has not been changed (its integrity).
Extended search being performed may take a significant time so a forking proxy must send a 100 Trying response. [1] : §21.1.1. 180 Ringing. Destination user agent received INVITE, and is alerting user of call. [1] : §21.1.2. 181 Call is Being Forwarded. Servers can optionally send this response to indicate a call is being forwarded. [1 ...
Open Platform Communications ( OPC) is a series of standards and specifications for industrial telecommunication. They are based on Object Linking and Embedding (OLE) for process control . An industrial automation task force developed the original standard in 1996 under the name OLE for Process Control. OPC specifies the communication of real ...
GateKeeper is a wireless proximity-based access control and authentication device that allows a user to automatically lock their computer by walking away and unlock it by walking back. The GateKeeper consists of a key fob, a USB dongle to transmit the wireless signal, software to manage user credentials, and a password manager.
The legal status for women in many cases reverted to that stipulated in the Napoleonic Code that had first been installed in Spanish law in 1889. The post Civil War period saw the return of laws that effectively made wards of women. They were dependent on husbands, fathers and brothers to work outside the house.
RSBAC means "ruleset based access control" and is also a role-based access control ( RBAC) solution. The two acronyms can cause confusion. In his essay "Rule Set Modeling of a Trusted Computer System", Leonard LaPadula describes how the Generalized Framework for Access Control (GFAC) approach could be implemented in the UNIX System V operating ...