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  2. Standard dimension ratio - Wikipedia

    en.wikipedia.org/wiki/Standard_dimension_ratio

    Standard dimension ratio (SDR) is a method of rating a pipe's durability against pressure. The standard dimension ratio describes the correlation between the pipe dimension and the thickness of the pipe wall. [1] Common nominations are SDR11, SDR17, SDR26 and SDR35. Pipes with a lower SDR can withstand higher pressures.

  3. File:LD 26 - 2024.pdf - Wikipedia

    en.wikipedia.org/wiki/File:LD_26_-_2024.pdf

    Original file (1,087 × 1,762 pixels, file size: 2.92 MB, MIME type: application/pdf) This is a file from the Wikimedia Commons . Information from its description page there is shown below.

  4. List of rail transport modelling scale standards - Wikipedia

    en.wikipedia.org/wiki/List_of_rail_transport...

    Using 32 mm (1.26 in) - 0 gauge - track, there is an extensive range of 16 mm to the foot scale [1:19] live-steam and other types of locomotives, rolling stock and accessories. Many of these models are dual gauge, and can be converted to run on 45 mm ( 1.772 in ) track ( gauge 1 ), and radio control is common.

  5. System Design Review - Wikipedia

    en.wikipedia.org/wiki/System_Design_Review

    The SDR was originally defined in the Air Force's MIL-STD-1521. [1] The SDR is a technical review conducted to evaluate the manner in which a project's system requirements have been allocated to configuration items, manufacturing considerations, next phase planning, production plans, and the engineering process that produced the allocation ...

  6. Design review (U.S. government) - Wikipedia

    en.wikipedia.org/wiki/Design_review_(U.S...

    1.4 System Design Review (SDR) 1.5 Preliminary Design Review (PDR) 1.6 Critical Design Review (CDR) ... Download as PDF; Printable version; In other projects Wikidata ...

  7. List of software-defined radios - Wikipedia

    en.wikipedia.org/wiki/List_of_software-defined...

    Elektor SDR [39] Bare PCB and pre-built 150 kHz – 30 MHz ? No Soundcard ADC: 48, 96, and 192 kHz 0/1 USB Yes Yes Yes Elektor AVR SDR [40] Kit and pre-built up to 1 MHz in undersampling ? up to 15 kS/s 0/1 UART via RS2-232 converter or USB bridge Yes Yes Yes ELAD FDM-S1 [41] Pre-built 20 kHz – 30 MHz, up to 200 MHz in undersampling

  8. File:COVID-19 Vaccination Record Card CDC (8-17-2020).pdf

    en.wikipedia.org/wiki/File:COVID-19_Vaccination...

    Original file (725 × 612 pixels, file size: 52 KB, MIME type: application/pdf, 2 pages) This is a file from the Wikimedia Commons . Information from its description page there is shown below.

  9. File:Executive Order No. 26 s. 2017 (20170516-EO-26-RRD).pdf

    en.wikipedia.org/wiki/File:Executive_Order_No...

    English: Executive Order No. 26 s. 2017 (Providing for the Establishment of Smoke-Free Environments in Public and Enclosed Places) PDF file on the Official Gazette of the Republic of the Philippines website, signed by President Rodrigo Duterte on May 16, 2017