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Hubs contain a list of unique business keys with low propensity to change. Hubs also contain a surrogate key for each Hub item and metadata describing the origin of the business key. The descriptive attributes for the information on the Hub (such as the description for the key, possibly in multiple languages) are stored in structures called ...
The term "hub" is used by the FAA to identify busy commercial service airports. Large hubs are the airports that each account for at least one percent of total U.S. passenger enplanements. Medium hubs are defined as airports that each account for between 0.25 percent and 1 percent of the total passenger enplanements. [1]
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ISOs and RTOs of North America as of 2024 PJM coal and natural gas electricity generation, 2013–2017 During 2013–2017 the PJM Interconnection increased the use of natural gas combined cycle plants while reducing the use of coal-fired plants. PJM Interconnection LLC (PJM) is a regional transmission organization (RTO) in the United States.
The Midcontinent Independent System Operator (MISO) was established in 1998 as Midwest Independent Transmission System Operator, Inc., an independent and member-based non-profit organization, and was approved as the nation's first RTO by FERC in 2001.
Amazon's hotly anticipated post-apocalyptic series "Fallout" − based on the popular video game franchise that got its start in 1997 − debuted April 10.
The electrical power grid that powers Northern America is not a single grid, but is instead divided into multiple wide area synchronous grids. [1] The Eastern Interconnection and the Western Interconnection are the largest. Three other regions include the Texas Interconnection, the Quebec Interconnection, and the Alaska Interconnection.
AOL provides advanced security products to help prevent attacks, boost your internet speed to browse faster and shop more safely. AOL also offers 24x7 support.