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  2. Pittsburgh Technology Center - Wikipedia

    en.wikipedia.org/wiki/Pittsburgh_Technology_Center

    Pittsburgh Technology Center. Coordinates: 40.4326°N 79.963°W. Pittsburgh Technology Center (PTC) is an office park located in the South Oakland neighborhood of Pittsburgh, Pennsylvania. PTC, on the 48 acre [1] site of a former Jones and Laughlin Steel Mill, is a hub of advanced academic and corporate technology research.

  3. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    Active noise control ( ANC ), also known as noise cancellation ( NC ), or active noise reduction ( ANR ), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first developed in the late 1930s; later developmental work that began in the 1950s eventually resulted in ...

  4. Allegheny Technologies - Wikipedia

    en.wikipedia.org/wiki/Allegheny_Technologies

    Midland PA Works. ATI Inc. (previously Allegheny Technologies Incorporated) is an American producer of specialty materials headquartered in Dallas, Texas. ATI produces metals including titanium and titanium alloys, nickel -based alloys and superalloys, stainless and specialty steels, zirconium, hafnium, and niobium, tungsten materials, forgings ...

  5. University of Pittsburgh Applied Research Center - Wikipedia

    en.wikipedia.org/wiki/University_of_Pittsburgh...

    The University of Pittsburgh Applied Research Center ( U-PARC) is a one-million-square foot (93,000 m 2 ), high-security research park campus of the University of Pittsburgh. Comprising 53 buildings situated on over 85 acres (0.34 km 2 ), U-PARC is located 14 miles (23 km) from Downtown Pittsburgh in Harmar Township, Pennsylvania adjacent to ...

  6. Mesta Machinery - Wikipedia

    en.wikipedia.org/wiki/Mesta_Machinery

    Mesta Machinery was a leading industrial machinery manufacturer based in the Pittsburgh area town of West Homestead, Pennsylvania. It was founded in 1898 by George Mesta when he merged his machine shop with another. [ 2] Mesta "machines" can be found in factories throughout the world and as of 1984 had equipment in 500 steel mills. [ 3]

  7. Koppers - Wikipedia

    en.wikipedia.org/wiki/Koppers

    Revenue. US$ 1.16 billion. Number of employees. 2,200. Website. www.koppers.com. Koppers is a global chemical and materials company based in Pittsburgh, Pennsylvania, United States, in an art-deco 1920's skyscraper called the Koppers Tower .

  8. List of corporations in Pittsburgh - Wikipedia

    en.wikipedia.org/wiki/List_of_corporations_in...

    There are nine Fortune 500 companies headquartered in the Pittsburgh metropolitan area. [ 1] 120 PNC Financial Services (financial) 220 PPG Industries (industrial) 226 Howmet Aerospace (industrial) 245 Wesco International (industrial) 254 Viatris (pharmaceuticals) 310 U.S. Steel (industrial) 330 Alcoa (metals/mining)

  9. Neighbors disturbed by booming noise from Hard Summer ... - AOL

    www.aol.com/news/neighbors-disturbed-booming...

    August 4, 2024 at 4:44 PM. INGLEWOOD, Calif. - The sound of techno music on the five stages in Inglewood excited fans heading into day two of the Hard Summer music festival at SoFi Stadium. To one ...