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  2. List of model checking tools - Wikipedia

    en.wikipedia.org/wiki/List_of_model_checking_tools

    In 1999, Judi Romijn compared two model checkers (CADP and SPIN) on the HAVi interoperability audio-video protocol for consumer electronics. [3] In 2003, Yifei Dong, Xiaoqun Du, Gerard J. Holzmann, and Scott A. Smolka published a comparison of four model checkers (namely: Cospan, Murphi, SPIN, and XMC) on a communication protocol, the GNU i ...

  3. Model checking - Wikipedia

    en.wikipedia.org/wiki/Model_checking

    The implementation or design is regarded as a model of the system, whereas the specifications are properties that the model must satisfy. [ 2 ] An important class of model-checking methods has been developed for checking models of hardware and software designs where the specification is given by a temporal logic formula.

  4. Address verification service - Wikipedia

    en.wikipedia.org/wiki/Address_verification_service

    An address verification service (AVS) is a service provided by major credit card processors to enable merchants to authenticate ownership of a credit or debit card used by a customer. [1] AVS is done as part of the merchant's request for authorization in a non-face-to-face credit card transaction.

  5. Check valve - Wikipedia

    en.wikipedia.org/wiki/Check_valve

    A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [1] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various ...

  6. STANAG 3910 - Wikipedia

    en.wikipedia.org/wiki/STANAG_3910

    The original STANAG 3910, i.e. the NATO standard, reached, at least, draft version 1.8, [4] before work on it was abandoned in the early 1990s in favour of its publication through non-military standardization organizations: the foreword to Rev. 1.7 of the STANAG from March 1990 stated "The main body of this document is identical to the proposed Rev 1.7 of prEN 3910". [1]

  7. Reduced pressure zone device - Wikipedia

    en.wikipedia.org/wiki/Reduced_pressure_zone_device

    Because certain combinations of check valve failure and/or system backpressure cause the relief valve to discharge, the device must be mounted in a location where the drain will not become flooded. An example of where backflow would harm the water supply is the use of well washing devices inside underground sewerage pumping stations.

  8. Double check valve - Wikipedia

    en.wikipedia.org/wiki/Double_check_valve

    A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. [1] It is different from the two-way check valves (sometimes erroneously referred to as double check valves) used in air brake systems on heavy trucks which select from the highest pressure source.

  9. Adaptive voltage scaling - Wikipedia

    en.wikipedia.org/wiki/Adaptive_voltage_scaling

    Adaptive voltage scaling (AVS) is a closed-loop dynamic power minimization technique that adjusts the voltage supplied to a computer chip to match the chip's power needs during operation. Many computer chips, especially those in mobile devices or Internet of things devices are constrained by the power available (for example, they are limited to ...

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