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  2. World Trade Center (1973–2001) - Wikipedia

    en.wikipedia.org/wiki/World_Trade_Center_(1973...

    Nonetheless, the World Trade Center's structural engineers ended up following draft versions of New York City's new 1968 building codes. [59] The framed-tube design, introduced in the 1960s by Bangladeshi-American structural engineer Fazlur Rahman Khan, [60] was a new approach that allowed more open floor plans than the traditional design that ...

  3. Floor plan - Wikipedia

    en.wikipedia.org/wiki/Floor_plan

    v. t. e. In architecture and building engineering, a floor plan is a technical drawing to scale, showing a view from above, of the relationships between rooms, spaces, traffic patterns, and other physical features at one level of a structure. Dimensions are usually drawn between the walls to specify room sizes and wall lengths.

  4. Hospital emergency codes - Wikipedia

    en.wikipedia.org/wiki/Hospital_emergency_codes

    Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies. The use of codes is intended to convey essential information quickly and with minimal misunderstanding to staff while preventing stress and panic among visitors to the hospital.

  5. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    The Code 16K (1988) is a multi-row bar code developed by Ted Williams at Laserlight Systems (USA) in 1992. In the US and France, the code is used in the electronics industry to identify chips and printed circuit boards. Medical applications in the USA are well known. Williams also developed Code 128, and the structure of 16K is based on Code 128.

  6. Site plan - Wikipedia

    en.wikipedia.org/wiki/Site_plan

    A site plan is a "set of construction drawings that a builder or contractor uses to make improvements to a property. Counties can use the site plan to verify that development codes are being met and as a historical resource. Site plans are often prepared by a design consultant who must be either a licensed engineer, architect, landscape ...

  7. Mechanical systems drawing - Wikipedia

    en.wikipedia.org/wiki/Mechanical_systems_drawing

    Mechanical systems drawing is a type of technical drawing that shows information about heating, ventilating, air conditioning and transportation around the building (Elevators or Lifts and Escalator). [ 1] It is a powerful tool that helps analyze complex systems. These drawings are often a set of detailed drawings used for construction projects ...

  8. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_Code

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

  9. Architectural drawing - Wikipedia

    en.wikipedia.org/wiki/Architectural_drawing

    Site plans are commonly used to represent a building proposal prior to detailed design: drawing up a site plan is a tool for deciding both the site layout and the size and orientation of proposed new buildings. A site plan is used to verify that a proposal complies with local development codes, including restrictions on historical sites.