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The primary document outlining the RMF is NIST Special Publication 800-37. [1] [3] The RMF steps link to several other NIST standards and guidelines, including NIST Special Publication 800-53. The RMF process includes the following steps: Prepare to execute the RMF by establishing a context and setting priorities for managing security and ...
NIST Special Publication 800-53 is an information security standard that provides a catalog of privacy and security controls for information systems.Originally intended for U.S. federal agencies except those related to national security, since the 5th revision it is a standard for general usage.
Starting with Revision 3 of 800-53, Program Management controls were identified. These controls are independent of the system controls, but are necessary for an effective security program. Starting with Revision 4 of 800-53, eight families of privacy controls were identified to align the security controls with the privacy expectations of ...
Principal view of the pumping action of a twin-screw pump with a six-lobe female screw and a five-lobe male screw. A compressor (as opposed to a pump) would be shaped the same way, except that the shape of the lobes would change along the length of the screw, so that the volume of the trapped pockets would get squeezed smaller as they get closer to the exhaust port.
A representative pressure–volume diagram for a refrigeration cycle. Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), [1] in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles.
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In air conditioning, an inverter compressor is a compressor that is operated with an inverter. In the hermetic type, it can either be a scroll or reciprocating compressor . This type of compressor uses a drive to control the compressor motor speed to modulate cooling capacity.
Revision Design date Serial numbers Notes Revision A June 20, 1967 101–125 The original design by Bill Putnam; it had a brushed aluminium faceplate with a blue meter section. The output transformer was the UA-5002. Revision AB November 20, 1967 126–216 Several resistor values changes in signal pre-amp stages improved stability and noise.