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  2. Geometry Dash - Wikipedia

    en.wikipedia.org/wiki/Geometry_Dash

    Geometry Dash is a side-scrolling music platforming game series developed by Robert Topala. The game was released on 13 August 2013 on iOS and Android, and the Windows and macOS versions on 22 December 2014. In Geometry Dash, players control the movement of an icon and navigate music-based levels while avoiding obstacles such as spikes.

  3. Geometric dimensioning and tolerancing - Wikipedia

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

    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. GD&T is used to define the nominal (theoretically perfect ...

  4. Toyota GD engine - Wikipedia

    en.wikipedia.org/wiki/Toyota_GD_engine

    2GD-FTV. 2GD-FTV. The 2GD-FTV is a 2,393 cc (2.4 L) straight-four common rail diesel engine with a variable nozzle turbocharger (VNT) and intercooler. [30] It has 16 valves and a DOHC (double overhead camshaft) design. Its compression ratio is 15.6:1. Bore x stroke is 92 mm × 90 mm (3.62 in × 3.54 in). It generates 150 PS (148 hp; 110 kW ...

  5. Gradient descent - Wikipedia

    en.wikipedia.org/wiki/Gradient_descent

    Gradient descent is a method for unconstrained mathematical optimization. It is a first-order iterative algorithm for finding a local minimum of a differentiable multivariate function . The idea is to take repeated steps in the opposite direction of the gradient (or approximate gradient) of the function at the current point, because this is the ...

  6. Hyundai Smartstream engine - Wikipedia

    en.wikipedia.org/wiki/Hyundai_Smartstream_engine

    It is a 1,598 cc (97.5 cu in) turbocharged inline 4-cylinder engine with GDi that carries a bore and stroke of 75.6 mm and 89 mm respectively and a 10.0(±0.2):1 compression ratio. This is the world's first production engine to use Continuously Variable Valve Duration (CVVD) technology, allowing it to adjust how long its intake valves remain ...

  7. Gadolinium - Wikipedia

    en.wikipedia.org/wiki/Gadolinium

    Gadolinium is a chemical element; it has symbol Gd and atomic number 64. Gadolinium is a silvery-white metal when oxidation is removed. It is a malleable and ductile rare-earth element. Gadolinium reacts with atmospheric oxygen or moisture slowly to form a black coating. Gadolinium below its Curie point of 20 °C (68 °F) is ferromagnetic, with ...

  8. Gadolinium(III) nitride - Wikipedia

    en.wikipedia.org/wiki/Gadolinium(III)_nitride

    Preparation. Gadolinium(III) nitride can be prepared by the direct reaction of gadolinium metal and nitrogen gas at 1600 °C and at a pressure of 1300 atm. 2Gd + N 2 → 2GdN

  9. Sum activity of peripheral deiodinases - Wikipedia

    en.wikipedia.org/wiki/Sum_activity_of_peripheral...

    The sum activity of peripheral deiodinases (G D, also referred to as deiodination capacity, total deiodinase activity or, if calculated from levels of thyroid hormones, as SPINA-GD) is the maximum amount of triiodothyronine produced per time-unit under conditions of substrate saturation.