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  2. Fire alarm notification appliance - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_notification...

    Light (visible signals) 15 cd to 1,000 cd candela output; 1 to 2 flashes per second; Coding The standard fire alarm sound used in most of North America. Coding refers to the pattern or tones a notification appliance sounds in and is controlled either by the panel or by setting jumpers or DIP switches on the notification appliances. The majority ...

  3. Gray code - Wikipedia

    en.wikipedia.org/wiki/Gray_code

    In principle, there can be more than one such code for a given word length, but the term Gray code was first applied to a particular binary code for non-negative integers, the binary-reflected Gray code, or BRGC. Bell Labs researcher George R. Stibitz described such a code in a 1941 patent application, granted in 1943.

  4. Orientation column - Wikipedia

    en.wikipedia.org/wiki/Orientation_column

    Orientation columns are organized regions of neurons that are excited by visual line stimuli of varying angles. These columns are located in the primary visual cortex (V1) and span multiple cortical layers. The geometry of the orientation columns are arranged in slabs that are perpendicular to the surface of the primary visual cortex.

  5. Optical proximity correction - Wikipedia

    en.wikipedia.org/wiki/Optical_proximity_correction

    Optical proximity correction ( OPC) is a photolithography enhancement technique commonly used to compensate for image errors due to diffraction or process effects. The need for OPC is seen mainly in the making of semiconductor devices and is due to the limitations of light to maintain the edge placement integrity of the original design, after ...

  6. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    Barcode. A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called ...

  7. Command pattern - Wikipedia

    en.wikipedia.org/wiki/Command_pattern

    Command pattern. In object-oriented programming, the command pattern is a behavioral design pattern in which an object is used to encapsulate all information needed to perform an action or trigger an event at a later time. This information includes the method name, the object that owns the method and values for the method parameters.

  8. Hikkake pattern - Wikipedia

    en.wikipedia.org/wiki/Hikkake_Pattern

    Hikkake Pattern. The hikkake pattern, or hikkake, is a technical analysis pattern used for determining market turning-points and continuations. It is a simple pattern that can be observed in market price data, using traditional bar charts, point and figure charts, or Japanese candlestick charts. The pattern does not belong to the collection of ...

  9. Personal and business legal affairs of Donald Trump - Wikipedia

    en.wikipedia.org/wiki/Personal_and_business...

    In July 2015, Trump filed a $10 million lawsuit in D.C. Superior Court for breach of contract against Spanish celebrity chef José Andrés, claiming that he backed out of a deal to open the flagship restaurant at Trump International Hotel in Washington, D.C. Andrés replied that Trump's lawsuit was "both unsurprising and without merit" and ...