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  2. Johnson–Nyquist noise - Wikipedia

    en.wikipedia.org/wiki/Johnson–Nyquist_noise

    Johnson–Nyquist noise (thermal noise, Johnson noise, or Nyquist noise) is the electronic noise generated by the thermal agitation of the charge carriers (usually the electrons) inside an electrical conductor at equilibrium, which happens regardless of any applied voltage.

  3. Noise (electronics) - Wikipedia

    en.wikipedia.org/wiki/Noise_(electronics)

    In many cases noise found on a signal in a circuit is unwanted. There are many different noise reduction techniques that can reduce the noise picked up by a circuit. Faraday cage – A Faraday cage enclosing a circuit can be used to isolate the circuit from external noise sources. A Faraday cage cannot address noise sources that originate in ...

  4. Noise reduction - Wikipedia

    en.wikipedia.org/wiki/Noise_reduction

    Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio.

  5. Noise temperature - Wikipedia

    en.wikipedia.org/wiki/Noise_temperature

    The noise factor (a linear term) is more often expressed as the noise figure (in decibels) using the conversion: = ⁡ The noise figure can also be seen as the decrease in signal-to-noise ratio (SNR) caused by passing a signal through a system if the original signal had a noise temperature of 290 K. This is a common way of expressing the noise ...

  6. Noise (signal processing) - Wikipedia

    en.wikipedia.org/wiki/Noise_(signal_processing)

    Noise reduction, the recovery of the original signal from the noise-corrupted one, is a very common goal in the design of signal processing systems, especially filters. The mathematical limits for noise removal are set by information theory .

  7. 7 Upsetting Things That Happen to Your House in Extreme Heat

    www.aol.com/7-upsetting-things-happen-house...

    Extreme heat can cause roof shingles to curl, crack, or even fall off, says Derek Perzylo, co-owner of Big 5 Exteriors Ltd., an exterior services contractor in Calgary. When it’s hot, the ...

  8. Fear in the C-Suite after UnitedHealthcare CEO gunned down - AOL

    www.aol.com/c-suites-fear-more-executives...

    Many other corporations within finance, media, technology and elsewhere have division CEOs who are crucial to business operations yet don’t receive the security protections that the top CEO does.

  9. Fluctuation–dissipation theorem - Wikipedia

    en.wikipedia.org/wiki/Fluctuation–dissipation...

    When light impinges on an object, some fraction of the light is absorbed, making the object hotter. In this way, light absorption turns light energy into heat. The corresponding fluctuation is thermal radiation (e.g., the glow of a "red hot" object). Thermal radiation turns heat energy into light energy—the reverse of light absorption.