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  2. Street suffix - Wikipedia

    en.wikipedia.org/wiki/Street_suffix

    Lane (La, Ln or L) Narrow way between walls, buildings or a narrow country or city roadway. Loop Roadway that diverges from and re-joins the main thoroughfare. Mall Sheltered walk, promenade or shopping precinct. Mews Roadway in a group of houses. Parade (Pde) Public promenade or roadway that has good pedestrian facilities along the side.

  3. List of abbreviations in oil and gas exploration and production

    en.wikipedia.org/wiki/List_of_abbreviations_in...

    XL or EXL – exploration licence (United Kingdom), a type of onshore licence issued between the First Onshore Licensing Round (1986) and the sixth (1992) [citation needed] Xln – crystalline (minerals) XLPE -cross-linked polyethylene; XMAC – cross-multipole array acoustic log; XMAC-E – XMAC elite (next generation of XMAC [citation needed])

  4. Control zone - Wikipedia

    en.wikipedia.org/wiki/Control_zone

    A control area (CTA) is often placed between a CTR and nearby airways to give uninterrupted controlled airspace to airways arrivals and departures. In Germany, control zones are a special type of class D airspace, called D (CTR). The main difference to the regular German class D airspace is, that within a CTR there is a minimum required cloud ...

  5. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    There should be no whitespace between the numeral and the letter X. (Note on character encoding: Although in typography (including Unicode) the letter X and the multiplication sign (×) are distinct characters with differing glyphs, it is a longstanding tradition in engineering drawing that the letter X is interchangeable with the multi sign ...

  6. CTR - Wikipedia

    en.wikipedia.org/wiki/CTR

    Counter mode (CTR mode), a cryptographic mode of operation for block ciphers; X-ray crystal truncation rod, a technique to measure properties of crystal surfaces; Current transfer ratio, in an opto-isolator device; Content Threat Removal, a cyber security technology that defeats content threats

  7. Terms of reference - Wikipedia

    en.wikipedia.org/wiki/Terms_of_reference

    Although the terms of reference of a project are sometimes referred to as the project charter, [4] there are significant differences between the two. This article describes a TOR containing detailed definitions, while a project charter has high-level requirements, assumptions, constraints and descriptions as well as a budget summary without ...

  8. Project management triangle - Wikipedia

    en.wikipedia.org/wiki/Project_management_triangle

    [2] [3] Martin Barnes (1968) proposed a project cost model based on cost, time and resources (CTR) in his PhD thesis and in 1969, he designed a course entitled "Time and Cost in Contract Control" in which he drew a triangle with each apex representing cost, time and quality (CTQ). [4] Later, he expanded quality with performance, becoming CTP.

  9. Block cipher mode of operation - Wikipedia

    en.wikipedia.org/wiki/Block_cipher_mode_of_operation

    However, today CTR mode is widely accepted, and any problems are considered a weakness of the underlying block cipher, which is expected to be secure regardless of systemic bias in its input. [31] Along with CBC, CTR mode is one of two block cipher modes recommended by Niels Ferguson and Bruce Schneier. [32]