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  2. Differentiated services - Wikipedia

    en.wikipedia.org/wiki/Differentiated_services

    DiffServ uses a 6-bit differentiated services code point (DSCP) in the 6-bit differentiated services field (DS field) in the IP header for packet classification purposes. The DS field, together with the ECN field, replaces the outdated IPv4 TOS field.

  3. Hardness comparison - Wikipedia

    en.wikipedia.org/wiki/Hardness_comparison

    Hardness Conversion Table – Brinell, Rockwell,Vickers – Various steels . (archived November 11, 2011) Rockwell to Brinell conversion chart (Brinell, Rockwell A,B,C) Struers hardness conversion table (Vickers, Brinell, Rockwell B,C,D)

  4. QoS Class Identifier - Wikipedia

    en.wikipedia.org/wiki/QoS_Class_Identifier

    QoS Class Identifier (QCI) is a mechanism used in 3GPP Long Term Evolution (LTE) networks to ensure carrier traffic is allocated appropriate Quality of Service (QoS). ). Different carrier traffic requires different QoS and therefore different

  5. Steel design - Wikipedia

    en.wikipedia.org/wiki/Steel_design

    The design and use of steel frames are commonly employed in the design of steel structures. More advanced structures include steel plates and shells. In structural engineering, a structure is a body or combination of pieces of the rigid bodies in space that form a fitness system for supporting loads and resisting moments.

  6. Uniformat - Wikipedia

    en.wikipedia.org/wiki/Uniformat

    Uniformat is a standard for classifying building specifications, cost estimating, and cost analysis in the U.S. and Canada.The elements are major components common to most buildings.

  7. Newmark's influence chart - Wikipedia

    en.wikipedia.org/wiki/Newmark's_influence_chart

    Newmark's Influence Chart is an illustration used to determine the vertical pressure at any point below a uniformly loaded flexible area of soil of any shape. This method, like others, was derived by integration of Boussinesq's equation for a point load.

  8. Metal roof - Wikipedia

    en.wikipedia.org/wiki/Metal_roof

    A metal roof is a roofing system featuring metal pieces or tiles exhibiting corrosion resistance, impermeability to water, and long life. It is a component of the building envelope . The metal pieces may be a covering on a structural, non-waterproof roof, or they could be self-supporting sheets.

  9. SAE steel grades - Wikipedia

    en.wikipedia.org/wiki/SAE_steel_grades

    The SAE steel grades system is a standard alloy numbering system (SAE J1086 – Numbering Metals and Alloys) for steel grades maintained by SAE International. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels.