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  2. Impedance matching - Wikipedia

    en.wikipedia.org/wiki/Impedance_matching

    In electrical engineering, impedance matching is the practice of designing or adjusting the input impedance or output impedance of an electrical device for a desired value. Often, the desired value is selected to maximize power transfer or minimize signal reflection .

  3. Immittance - Wikipedia

    en.wikipedia.org/wiki/Immittance

    In electronics, an immittance Smith chart can be created by overlaying both the impedance and admittance grids, which is useful for cascading series-connected with parallel-connected electric circuits. This allows for the visualization of changes in impedance or admittance in the system caused by components of either the series or parallel circuit.

  4. List of unproven methods against COVID-19 - Wikipedia

    en.wikipedia.org/wiki/List_of_unproven_methods...

    Anxiety about COVID-19 makes people more willing to "try anything" that might give them a sense of control of the situation, making them easy targets for scams. [5] Many false claims about measures against COVID-19 have circulated widely on social media, but some have been circulated by text, on YouTube, and even in some mainstream media ...

  5. Treatment and management of COVID-19 - Wikipedia

    en.wikipedia.org/wiki/Treatment_and_management...

    The principal for obstetric management of COVID-19 include rapid detection, isolation, and testing, profound preventive measures, regular monitoring of fetus as well as of uterine contractions, peculiar case-to-case delivery planning based on severity of symptoms, and appropriate post-natal measures for preventing infection.

  6. Neural encoding of sound - Wikipedia

    en.wikipedia.org/wiki/Neural_encoding_of_sound

    [4] [5] The impedance matching is done through via lever ratios and the ratio of areas of the tympanic membrane and the footplate of the stapes, creating a transformer-like mechanism. [4] Furthermore, the ossicles are arranged in such a manner as to resonate at 700–800 Hz while at the same time protecting the inner ear from excessive energy. [5]

  7. Vitamin A nasal drops to be trialled for Covid smell loss - AOL

    www.aol.com/vitamin-nasal-drops-trialled-covid...

    A new study will consider whether vitamin A can help those who have lost their sense of smell after having Covid-19. ... of smell as a result of viral infections with nasal drops containing the ...

  8. Ear saver - Wikipedia

    en.wikipedia.org/wiki/Ear_saver

    Ear savers were designed as novel items during the COVID-19 pandemic by the open-source hardware community in response to requests from medical professionals reporting heavy strain on their ears. [2] Ear savers have since been commercialized for a broader population of users as the pandemic wore on. [3] [4]

  9. These are the best masks to wear on airplanes, according to ...

    www.aol.com/lifestyle/best-masks-wear-airplanes...

    Speaking of ear loops, these are made with extra-soft elastic, so you don't get that painful digging-in feeling around your ears. One user gave the masks props for comfort. "It doesn’t hurt or ...

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