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  2. Joule–Thomson effect - Wikipedia

    en.wikipedia.org/wiki/Joule–Thomson_effect

    The gas-cooling throttling process is commonly exploited in refrigeration processes such as liquefiers in air separation industrial process. [7] [8] In hydraulics, the warming effect from Joule–Thomson throttling can be used to find internally leaking valves as these will produce heat which can be detected by thermocouple or thermal-imaging ...

  3. James Thompson Marshall - Wikipedia

    en.wikipedia.org/wiki/James_Thompson_Marshall

    At least one of J. T. Marshall's valve gears was a rotary type and the only known application was to the Austrian BBÖ Class 114 locomotive. The better-known J. T. Marshall gear was a modified Walschaerts valve gear which was first applied to a Great Northern Railway mineral locomotive, no. 743, in 1901 [ 3 ] and received a glowing report. [ 4 ]

  4. J&T Express - Wikipedia

    en.wikipedia.org/wiki/J&T_Express

    By November, J&T had raised an additional US$ 2.5 billion, with a valuation of US$ 20 billion and investments from Boyu Capital, Hillhouse Capital Group, Sequoia Capital China, and Tencent Holdings. Reports indicate that J&T is planning to go public in Hong Kong in 2022, [4] [8] and that CICC, Bank of America and Morgan Stanley are preparing ...

  5. Geometric dimensioning and tolerancing - Wikipedia

    en.wikipedia.org/wiki/Geometric_dimensioning_and...

    Example of true position geometric control defined by basic dimensions and datum features. Geometric dimensioning and tolerancing (GD&T) is a system for defining and communicating engineering tolerances via a symbolic language on engineering drawings and computer-generated 3D models that describes a physical object's nominal geometry and the permissible variation thereof.

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  7. Valve gear - Wikipedia

    en.wikipedia.org/wiki/Valve_gear

    Deeley valve gear - fitted to several express locomotives on the Midland Railway. The combination levers were driven, as normal, from the crossheads. Each expansion link was driven from the crosshead on the opposite side of the engine. Young valve gear - used the piston rod motion on one side of the locomotive to drive the valve gear on the ...

  8. Optimal job scheduling - Wikipedia

    en.wikipedia.org/wiki/Optimal_job_scheduling

    Optimal job scheduling is a class of optimization problems related to scheduling. The inputs to such problems are a list of jobs (also called processes or tasks) ...

  9. Shenyang J-16 - Wikipedia

    en.wikipedia.org/wiki/Shenyang_J-16

    The Shenyang J-16, also known as Qianlong (simplified Chinese: 潜龙; traditional Chinese: 潛龍; pinyin: Qián Lóng; lit. 'Hyphalosaurus or hidden dragon') is a Chinese all-weather 4.5 generation, [2] tandem-seat, twin-engine, multirole strike fighter [3] [1] built by Shenyang Aircraft Corporation and operated by the People's Liberation Army Air Force (PLAAF).