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  2. Alcon - Wikipedia

    en.wikipedia.org/wiki/Alcon

    Alcon offices in Johns Creek, Georgia. Alcon Inc. ( German: Alcon AG) is a Swiss-American pharmaceutical and medical device company specializing in eye care products. It has a paper headquarters in Geneva, Switzerland but its operational headquarters are in Fort Worth, Texas, United States, where it employs about 4,500 people. [2]

  3. Texas Interconnection - Wikipedia

    en.wikipedia.org/wiki/Texas_Interconnection

    The Texas Interconnection is an alternating current (AC) power grid – a wide area synchronous grid – that covers most of the state of Texas. The grid is managed by the Electric Reliability Council of Texas (ERCOT) . The Texas Interconnection is one of the three minor grids in the North American power transmission grid.

  4. List of channel numbers assigned to FM frequencies in North ...

    en.wikipedia.org/wiki/List_of_channel_numbers...

    In the Americas (defined as International Telecommunication Union (ITU) region 2), the FM broadcast band consists of 101 channels, each 200 kHz wide, in the frequency range from 87.8 to 108.0 MHz, with "center frequencies" running from 87.9 MHz to 107.9 MHz. For most purposes an FM station is associated with its center frequency.

  5. North American power transmission grid - Wikipedia

    en.wikipedia.org/wiki/North_American_power...

    The Texas Interconnection is one of the three minor alternating current (AC) power grids in North America. All of the electric utilities in the Texas Interconnection are electrically tied together during normal system conditions, and they operate at a synchronized frequency operating at an average of 60 Hz.

  6. PJM Interconnection - Wikipedia

    en.wikipedia.org/wiki/PJM_Interconnection

    From 1996 to 1999, the FERC made a series of decisions which resulted in the restructuring of the U.S. electric utility industry. The FERC's intention in doing so was to open the wholesale power market to new players, with the hope that spurring competition would save consumers $4 to $5 billion per year and encourage technical innovation in the industry.

  7. List of U.S. government and military acronyms - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._government...

    APPN – Appropriation Number (U.S. Military) APRT – Army Physical Readiness Test (U.S. Army) ARCENT/TUSA – US Army Central /HQ Third US Army (TUSA) [ 3] ARPANET – Advanced Research Projects Agency Network (e.g., 1969 to 1989; antecedent of the information superhighway; now DARPA) ARM – Anti-Radar Missile.

  8. Utility frequency - Wikipedia

    en.wikipedia.org/wiki/Utility_frequency

    The utility frequency, (power) line frequency ( American English) or mains frequency ( British English) is the nominal frequency of the oscillations of alternating current (AC) in a wide area synchronous grid transmitted from a power station to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia ...

  9. Frequency allocation - Wikipedia

    en.wikipedia.org/wiki/Frequency_allocation

    Frequency allocation. Frequency allocation (or spectrum allocation) is the part of spectrum management dealing with the designation and regulation of the electromagnetic spectrum into frequency bands, normally done by governments in most countries. [ 1] Because radio propagation does not stop at national boundaries, governments have sought to ...