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  2. Safety integrity level - Wikipedia

    en.wikipedia.org/wiki/Safety_integrity_level

    Assignment, or allocation of SIL is an exercise in risk analysis where the risk associated with a specific hazard, which is intended to be protected against by a SIF, is calculated without the beneficial risk reduction effect of the SIF. That unmitigated risk is then compared against a tolerable risk target.

  3. Small intensely fluorescent cell - Wikipedia

    en.wikipedia.org/wiki/Small_intensely...

    Small intensely fluorescent cells (SIF cells) are the interneurons of the sympathetic ganglia (postganglionic neurons) of the Sympathetic division of the autonomic nervous system (ANS). The neurotransmitter for these cells is dopamine. They are a neural crest derivative and share a common sympathoadrenal precursor cell with sympathetic neurons ...

  4. Special Investment Facilitation Council - Wikipedia

    en.wikipedia.org/wiki/Special_Investment...

    The forum has claimed to focus on using the potential of economic sectors such as information technology, agriculture, energy, mineral resources, mining, and defense production. Another primary objective of the SIFC is stated to be the attraction of investments from "friendly nations."

  5. 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 ...

  6. Hydrogen-terminated silicon surface - Wikipedia

    en.wikipedia.org/wiki/Hydrogen-terminated...

    sio 2 + 4 hf → sif 4 + 2 h 2 o The key reaction however is the formation of the hydrosilane functional group. atomic force microscope (AFM) has been used to manipulate hydrogen-terminated silicon surfaces.

  7. 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...

  8. Chlorotrifluorosilane - Wikipedia

    en.wikipedia.org/wiki/Chlorotrifluorosilane

    Other products of this explosion may include amorphous silicon, SiCl 2 F 2 and SiF 4. [10] Chlorine reacts with silicon tetrafluoride in the presence of aluminium chips at 500-600 °C to make mostly silicon tetra chloride and some SiClF 3. [11] Mercuric chloride when heated with SiF 3 Co(CO) 4 breaks the bond to form a 90% yield of SiClF 3. [12]

  9. Mortgage and refinance rates for Feb. 4, 2025: Average 30 ...

    www.aol.com/finance/mortgage-and-refinance-rates...

    4 top factors that affect your mortgage rate. The difference of even half a percentage point on your interest rate can save you hundreds of dollars a month and thousands of dollars over the life ...