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  2. 100 Gigabit Ethernet - Wikipedia

    en.wikipedia.org/wiki/100_Gigabit_Ethernet

    The purpose of this project is to extend the 802.3 protocol to operating speeds of 40 Gbit/s and 100 Gbit/s in order to provide a significant increase in bandwidth while maintaining maximum compatibility with the installed base of 802.3 interfaces, previous investment in research and development, and principles of network operation and ...

  3. Cutoff (steam engine) - Wikipedia

    en.wikipedia.org/wiki/Cutoff_(steam_engine)

    Schematic indicator diagram of pressure in a steam locomotive cylinder. The pressure in the cylinder declines after cutoff as the steam pushes the piston down its bore. Cutoff is one of the four valve events. Early cutoff is used to increase the efficiency of the engine by allowing the steam to expand for the rest of the power stroke, yielding ...

  4. Pressure exchanger - Wikipedia

    en.wikipedia.org/wiki/Pressure_exchanger

    These are activated by the concentrate (brine) leaving the plant and transfer the energy contained in the high pressure of this concentrate usually mechanically to the high-pressure pump. In the pressure exchanger the energy contained in the brine is transferred hydraulically [1] [2] and with an efficiency of approximately 98% to the feed. [3]

  5. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  6. Turbopump - Wikipedia

    en.wikipedia.org/wiki/Turbopump

    A turbopump is a propellant pump with two main components: a rotodynamic pump and a driving gas turbine, usually both mounted on the same shaft, or sometimes geared together. They were initially developed in Germany in the early 1940s. The purpose of a turbopump is to produce a high-pressure fluid for feeding a combustion chamber or other use ...

  7. Women are being notified that they need to take action if ...

    www.aol.com/women-being-notified-action-dense...

    The United States Preventive Task Force recommends that all women get screened for breast cancer every other year, starting at age 40 and continuing through age 74, to reduce their risk of dying ...

  8. OpenTherm - Wikipedia

    en.wikipedia.org/wiki/OpenTherm

    OpenTherm was founded in 1996 because multiple manufacturers needed a simple-to-use communicating system between room controller and boiler. It had to run, like the existing controllers, over the existing two wires, not polarity sensitive, without the use of batteries.

  9. AOL Mail Help - AOL Help

    help.aol.com/products/new-aol-mail

    You've Got Mail!® Millions of people around the world use AOL Mail, and there are times you'll have questions about using it or want to learn more about its features. That's why AOL Mail Help is here with articles, FAQs, tutorials, our AOL virtual chat assistant and live agent support options to get your questions answered.