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  2. Mean time between failures - Wikipedia

    en.wikipedia.org/wiki/Mean_time_between_failures

    The MTBF and have units of time (e.g., hours). Any practically-relevant calculation of the MTBF assumes that the system is working within its "useful life period", which is characterized by a relatively constant failure rate (the middle part of the "bathtub curve") when only random failures are occurring. [1]

  3. Failure rate - Wikipedia

    en.wikipedia.org/wiki/Failure_rate

    However, using a fixed failure rate to calculate MTBF is only valid if the failure rate is constant over time, such as within the flat region of the bathtub curve. In many cases where MTBF is quoted, it refers only to this region; this type of MTBF cannot be used to give an accurate calculation of the average lifetime of a system, as it ignores ...

  4. Talk:Mean time between failures - Wikipedia

    en.wikipedia.org/wiki/Talk:Mean_time_between...

    I propose to add formulae to compute the MTBF of systems from the MTBFs of its components (arranged in series or in parallel). I know the formulae, and they are available at several places, such as forum threads or student notes , and many others, but I haven't found a good, clean, reliable source. If someone has a good source for such things ...

  5. Reliability prediction for electronic components - Wikipedia

    en.wikipedia.org/wiki/Reliability_prediction_for...

    MTBF (mean operating time between failures) applies to equipment that is going to be repaired and returned to service, MTTF (mean time to failure) applies to parts that will be thrown away on failing. During the ‘useful life period’ assuming a constant failure rate, MTBF is the inverse of the failure rate and the terms can be used ...

  6. Reliability, availability and serviceability - Wikipedia

    en.wikipedia.org/wiki/Reliability,_availability...

    Reliability can be characterized in terms of mean time between failures (MTBF), with reliability = exp(−t/MTBF). [5] Availability means the probability that a system is operational at a given time, i.e. the amount of time a device is actually operating as the percentage of total time it should be operating. High-availability systems may ...

  7. Fantasy football Start ‘Em, Sit ‘Em: 16 players to start or ...

    www.aol.com/fantasy-football-start-em-sit...

    Week 10 has come and gone, and we are drawing ever nearer to the fantasy playoffs. So here are 16 players to start or sit in your Week 11 matchups.

  8. Reliability block diagram - Wikipedia

    en.wikipedia.org/wiki/Reliability_block_diagram

    An RBD is drawn as a series of blocks connected in parallel or series configuration. Parallel blocks indicate redundant subsystems or components that contribute to a lower failure rate. Each block represents a component of the system with a failure rate. RBDs will indicate the type of redundancy in the parallel path. [1]

  9. Data Disappeared

    highline.huffingtonpost.com/article/disappearing...

    Over the past four years, the Trump administration has destroyed or distorted vast swaths of information vital to public life and safety. This is an account of the damage.