enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Safety integrity level - Wikipedia

    en.wikipedia.org/wiki/Safety_integrity_level

    In functional safety, safety integrity level (SIL) is defined as the relative level of risk-reduction provided by a safety instrumented function (SIF), i.e. the measurement of the performance required of the SIF. [1]

  3. Safety instrumented system - Wikipedia

    en.wikipedia.org/wiki/Safety_instrumented_system

    An SIS performs a safety instrumented function (SIF). The SIS is credited with a certain measure of reliability depending on its safety integrity level (SIL). The required SIL is determined from a quantitative process hazard analysis (PHA), such as a Layers of Protection Analysis (LOPA). The SIL requirements are verified during the design ...

  4. Identification friend or foe - Wikipedia

    en.wikipedia.org/wiki/Identification_friend_or_foe

    As development continued it was decided to introduce an encoding system known as the "Selective Identification Feature", or SIF. SIF allowed the return signal to contain up to 12 pulses, representing four octal digits of 3 bits each. Depending on the timing of the interrogation signal, SIF would respond in several ways.

  5. IEC 61508 - Wikipedia

    en.wikipedia.org/wiki/IEC_61508

    The risk is a function of frequency (or likelihood) of the hazardous event and the event consequence severity. The risk is reduced to a tolerable level by applying safety functions which may consist of E/E/PES, associated mechanical devices, or other technologies.

  6. Is There An Opportunity With Sif Holding N.V.'s (AMS:SIFG) 36 ...

    www.aol.com/news/opportunity-sif-holding-n-v...

    In this article we are going to estimate the intrinsic value of Sif Holding N.V. (AMS:SIFG) by taking the expected...

  7. Schools Interoperability Framework - Wikipedia

    en.wikipedia.org/wiki/Schools_Interoperability...

    The SIF 3.2 Release includes the SIF XPress Roster and the SIF Xpress Student Record Exchange (SRE). These are the result of work being done by various members of the association (vendors, agencies, regional centers) on a more easily adopted, easier to implement sub-set of the specification that handles the roster and basic uses cases.

  8. Stress intensity factor - Wikipedia

    en.wikipedia.org/wiki/Stress_intensity_factor

    Polar coordinates at the crack tip. In fracture mechanics, the stress intensity factor (K) is used to predict the stress state ("stress intensity") near the tip of a crack or notch caused by a remote load or residual stresses. [1]

  9. Aviation transponder interrogation modes - Wikipedia

    en.wikipedia.org/wiki/Aviation_transponder...

    The aviation transponder interrogation modes are the standard formats of pulsed sequences from an interrogating Secondary Surveillance Radar (SSR) or similar Automatic Dependent Surveillance-Broadcast (ADS-B) system.