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  2. Infrared - Wikipedia

    en.wikipedia.org/wiki/Infrared

    Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared spectral band begins with waves that are just longer than those of red light (the longest waves in the visible spectrum ), so IR is invisible to the human eye.

  3. IR - Wikipedia

    en.wikipedia.org/wiki/IR

    Ingenieur, abbreviated ir., an engineer's degree awarded by technical universities in the Netherlands, Belgium, Indonesia, and Malaysia; Injured reserve list, a list of professional sports players who are injured and unable to play for an extended time

  4. Investor relations - Wikipedia

    en.wikipedia.org/wiki/Investor_relations

    Investor relations (IR) is a "strategic management responsibility that is capable of integrating finance, communication, marketing and securities law compliance to enable the most effective two-way communication between a company, the financial community, and other constituencies, which ultimately contributes to a company's securities achieving fair valuation."

  5. Integrated reporting - Wikipedia

    en.wikipedia.org/wiki/Integrated_reporting

    Integrated reporting (IR, or <IR> in International Integrated Reporting Council publications) in corporate communication is a "process that results in communication, most visibly a periodic “integrated report”, about value creation over time. An integrated report is a concise communication about how an organization's strategy, governance ...

  6. Infrared spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Infrared_spectroscopy

    Infrared spectroscopy (IR spectroscopy or vibrational spectroscopy) is the measurement of the interaction of infrared radiation with matter by absorption, emission, or reflection. It is used to study and identify chemical substances or functional groups in solid, liquid, or gaseous forms.

  7. Information retrieval - Wikipedia

    en.wikipedia.org/wiki/Information_retrieval

    Information retrieval (IR) in computing and information science is the task of identifying and retrieving information system resources that are relevant to an information need. The information need can be specified in the form of a search query.

  8. IR, PUP, NFI. What do all of those NFL roster designations mean?

    www.aol.com/sports/ir-pup-nfi-those-nfl...

    The same used to be the case if a player went on IR during the regular season, but the rules have been tweaked and amended a few times in recent years. Starting last year, players need to miss a ...

  9. Interventional radiology - Wikipedia

    en.wikipedia.org/wiki/Interventional_radiology

    Interventional radiology (IR) is a medical specialty that performs various minimally-invasive procedures using medical imaging guidance, such as x-ray fluoroscopy, computed tomography, magnetic resonance imaging, or ultrasound. IR performs both diagnostic and therapeutic procedures through very small incisions or body orifices.