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  2. Instantaneous wave-free ratio - Wikipedia

    en.wikipedia.org/wiki/Instantaneous_wave-free_ratio

    The instantaneous wave-free ratio (iFR, sometimes referred to as the instant wave-free ratio or instant flow reserve) is a diagnostic tool used to assess whether a stenosis is causing a limitation of blood flow in coronary arteries with subsequent ischemia. iFR is performed during cardiac catheterisation (angiography) using invasive coronary pressure wires which are placed in the coronary ...

  3. Integral fast reactor - Wikipedia

    en.wikipedia.org/wiki/Integral_fast_reactor

    Experimental Breeder Reactor II, which served as the prototype for the integral fast reactor (IFR). The integral fast reactor (IFR), originally the advanced liquid-metal reactor (ALMR), is a design for a nuclear reactor using fast neutrons and no neutron moderator (a "fast" reactor).

  4. International Financing Review - Wikipedia

    en.wikipedia.org/wiki/International_Financing_Review

    The International Financing Review (IFR [4]), also known as International Financing Review Magazine, [5] is a London-based [6] financial magazine [7] and was established in 1974. [8] It contains stories and data on international investment banking companies and international securities markets. [9] Its ISSN number is ISSN 0953-0223. [10]

  5. President's fleet review - Wikipedia

    en.wikipedia.org/wiki/President's_fleet_review

    The International fleet reviews are conducted over multiple days. Due to the presence of ships and naval officers and sailors from across many navies, several events are planned before and after the fleet review. IFR 2001 was held between 16 and 18 February 2001 while IFR 2016 was held between 4 and 9 February 2016.

  6. Review of Scientific Instruments - Wikipedia

    en.wikipedia.org/wiki/Review_of_Scientific...

    Review of Scientific Instruments is a monthly peer-reviewed scientific journal published by the American Institute of Physics. Its area of interest is scientific instruments, apparatus, and techniques. According to the Journal Citation Reports, the journal has a 2018 impact factor of 1.587. [1]

  7. Instrument flight rules - Wikipedia

    en.wikipedia.org/wiki/Instrument_flight_rules

    IFR flight depends upon flying by reference to instruments in the flight deck, and navigation is accomplished by reference to electronic signals." [ 1 ] It is also a term used by pilots and controllers to indicate the type of flight plan an aircraft is flying, such as an IFR or VFR flight plan.

  8. Instrument rating in the United States - Wikipedia

    en.wikipedia.org/wiki/Instrument_Rating_in_the...

    Under FAR 61.57, to be eligible to fly in Instrument Meteorological Conditions (IMC) an IFR-rated pilot must accomplish and log at least the following IFR procedures under actual or simulated IMC every 6 months: 6 instrument approaches. Holding procedures. Intercepting and tracking courses through the use of navigation systems.

  9. List of ships present at International Fleet Review 2016

    en.wikipedia.org/wiki/List_of_ships_present_at...

    This is list of the ships which participated in the International Fleet Review 2016 (IFR 2016) in Visakhapatnam, India. Indian Navy. Aircraft carriers. Name ...