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  2. Terraria - Wikipedia

    en.wikipedia.org/wiki/Terraria

    Terraria (/ t ə ˈ r ɛər i ə / ⓘ tə-RAIR-ee-ə [1]) is a 2011 action-adventure sandbox game developed by Re-Logic. The game was first released for Windows and has since been ported to other PC and console platforms.

  3. Skyline matrix - Wikipedia

    en.wikipedia.org/wiki/Skyline_matrix

    In column-oriented skyline storage, only the entries from the first nonzero entry to the last nonzero entry in each column are stored. There is also row oriented skyline storage, and, for symmetric matrices, only one triangle is usually stored. [2] A column-oriented skyline matrix (on the top). On the bottom is the relative storage structure.

  4. Rietveld refinement - Wikipedia

    en.wikipedia.org/wiki/Rietveld_refinement

    Other parameters can be guessed while still being reasonably refined. In this way one can refine the crystal structure of a powder material from PXRD data. The successful outcome of the refinement is directly related to the quality of the data, the quality of the model (including initial approximations), and the experience of the user.

  5. Petroleum refining processes - Wikipedia

    en.wikipedia.org/wiki/Petroleum_refining_processes

    Petroleum refinery in Anacortes, Washington, United States. Petroleum refining processes are the chemical engineering processes and other facilities used in petroleum refineries (also referred to as oil refineries) to transform crude oil into useful products such as liquefied petroleum gas (LPG), gasoline or petrol, kerosene, jet fuel, diesel oil and fuel oils.

  6. Refinement (computing) - Wikipedia

    en.wikipedia.org/wiki/Refinement_(computing)

    For example, x ∈ {1,2,3} (where x is the value of the variable x after an operation) could be refined to x ∈ {1,2}, then x ∈ {1}, and implemented as x := 1. Implementations of x := 2 and x := 3 would be equally acceptable in this case, using a different route for the refinement.

  7. Refining - Wikipedia

    en.wikipedia.org/wiki/Refining

    Gases and liquids can also be refined by extraction with a selective solvent that dissolves away either the substance of interest, or the unwanted impurities. Many solids can be refined by growing crystals in a solution of the impure material; the regular structure of the crystal tends to favor the desired material and exclude other kinds of ...

  8. Oil refinery - Wikipedia

    en.wikipedia.org/wiki/Oil_refinery

    In the Northern Song dynasty (960–1127), a workshop called the "Fierce Oil Workshop", was established in the city of Kaifeng to produce refined oil for the Song military as a weapon. The troops would then fill iron cans with refined oil and throw them toward the enemy troops, causing a fire – effectively the world's first "fire bomb". The ...

  9. Refined grains - Wikipedia

    en.wikipedia.org/wiki/Refined_grains

    A refined grain is defined as having undergone a process that removes the bran, germ and husk of the grain and leaves the endosperm, or starchy interior. [1] Examples of refined grains include white bread, white flour, corn grits and white rice. [2] Refined grains are milled which gives a finer texture and improved shelf life. [3]