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  2. 4-10-0 - Wikipedia

    en.wikipedia.org/wiki/4-10-0

    Under the Whyte notation for the classification of steam locomotives, 4-10-0 represents the wheel arrangement of four leading wheels, ten powered and coupled driving wheels, and no trailing wheels. Central Pacific Railroad 's El Gobernador , built in 1883, was the only locomotive with this wheel arrangement to operate in the United States.

  3. Category:4-10-2 locomotives - Wikipedia

    en.wikipedia.org/wiki/Category:4-10-2_locomotives

    Locomotives classified 4-10-2 under the Whyte notation of locomotive axle arrangements. The equivalent UIC classification of locomotive axle arrangements is 2E1 or 2'E1' . Subcategories

  4. 4-10-2 - Wikipedia

    en.wikipedia.org/wiki/4-10-2

    Under the Whyte notation for the classification of steam locomotives by wheel arrangement, 4-10-2 represents the arrangement of four leading wheels, ten powered and coupled driving wheels and two trailing wheels. In South Africa, where the wheel arrangement was first used, the type was known as a Reid Tenwheeler.

  5. Discrete mathematics - Wikipedia

    en.wikipedia.org/wiki/Discrete_mathematics

    Concepts and notations from discrete mathematics are useful in studying and describing objects and problems in branches of computer science, such as computer algorithms, programming languages, cryptography, automated theorem proving, and software development. Conversely, computer implementations are significant in applying ideas from discrete ...

  6. 2-8-8-8-4 - Wikipedia

    en.wikipedia.org/wiki/2-8-8-8-4

    The sole 2-8-8-8-4 locomotive. Under the Whyte notation for the classification of steam locomotives, a 2-8-8-8-4 has two leading wheels, three sets of eight driving wheels, and four trailing wheels. Other equivalent classifications are: UIC classification: (1′D)D(D2′) French classification: 140+040+042 Turkish classification: 45+44+46

  7. Differential Manchester encoding - Wikipedia

    en.wikipedia.org/wiki/Differential_Manchester...

    Differential Manchester encoding (DM) is a line code in digital frequency modulation in which data and clock signals are combined to form a single two-level self-synchronizing data stream. Each data bit is encoded by a presence or absence of signal level transition in the middle of the bit period, followed by the mandatory level transition at ...

  8. Dimensional modeling - Wikipedia

    en.wikipedia.org/wiki/Dimensional_modeling

    [3] [4] To build the schema, the following design model is used: Choose the business process; Declare the grain; Identify the dimensions; Identify the fact; Choose the business process. The process of dimensional modeling builds on a 4-step design method that helps to ensure the usability of the dimensional model and the use of the data warehouse.

  9. Engineering drawing abbreviations and symbols - Wikipedia

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

    An extensible series, covering various special threads. 2. Near side: The drawing notations "near side" and "far side" tell the reader which side of the part a feature is on, in occasional contexts where that fact is not communicated using the rules of projection alone. Contexts of usage are rather limited. See "far side" for examples. NSCM