Synchronverters (also called virtual synchronous generators or virtual synchronous machines) are inverters which mimic synchronous generators (SG) to provide "synthetic inertia" for ancillary services in electric power systems. Inertia is a property of standard synchronous generators associated with the rotating…

The Colorado Department of Personnel and Administration (DPA) is a principal department of the Colorado state government. It administers the statewide classified personnel system and supplies shared administrative infrastructure used by other agencies, including central payroll and the statewide accounting system,…

The Holocene or Anthropocene extinction is an ongoing extinction event caused by human activity during the current geological epoch, impacting diverse families of plants and animals, including mammals, birds, reptiles, amphibians, fish, and invertebrates, as well as both terrestrial and marine species. It is sometimes…

A variable-frequency drive (VFD, or adjustable-frequency drive, adjustable-speed drive, variable-speed drive, AC drive, micro drive, inverter drive, variable voltage variable frequency drive, VVVF drive, or drive) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the…

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This is a list of subsidiaries, equities, cash, cash equivalents and short-term investments owned by multinational holding company Berkshire Hathaway.

Each person listed here has both notability and a consensus of historical evidence of slave ownership. They are listed in alphabetical order by last name.

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