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2. The Home Depot Presidents' Day 2023 sale is on now - AOL

   www.aol.com/lifestyle/home-depot-presidents-day...

   A cute carry-on suitcase for $47, a top-rated washing machine for $798 (from $1,149), a Hamilton Beach bread maker for 45% off and tons more goodies.

3. Is This Toxic Mold? How To Know If It's In Your House—And Why ...

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   Mold illness isn’t easy to define, and the path from home mold growth to debilitating chronic health symptoms is complicated. But often the story starts like this: Moisture in a home can cause ...

4. This cordless electric scrubber (down to $40!) is a must-have ...

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   If you're a first-time QVC shopper, you can also take an extra $20 off your order of $40 or more when you use the code HOLIDAY20 at checkout. (This brings it down to just 20 bucks!) (This brings ...

5. Electro-optical sensor - Wikipedia

   en.wikipedia.org/wiki/Electro-optical_sensor

   An optical sensor converts light rays into electronic signals. It measures the physical quantity of light and then translates it into a form readable by an instrument. An optical sensor is generally part of a larger system that integrates a source of light, a measuring device, and the optical sensor. This is often connected to an electrical ...

6. Detectors for transmission electron microscopy - Wikipedia

   en.wikipedia.org/wiki/Detectors_for_transmission...

   Charge coupled device (CCD) cameras were first applied to transmission electron microscopy in the 1980s and later became widespread. [3] [4] For use in a TEM, CCDs are typically coupled with a scintillator such as single crystal Yttrium aluminium garnet (YAG) in which electrons from the electron beam are converted to photons, which are then transferred to the sensor of the CCD via a fiber ...

7. Everhart–Thornley detector - Wikipedia

   en.wikipedia.org/wiki/Everhart–Thornley_detector

   The E-T secondary electron detector can be used in the SEM's back-scattered electron mode by either turning off the Faraday cage or by applying a negative voltage to the Faraday cage. However, better back-scattered electron images come from dedicated BSE detectors rather than from using the E–T detector as a BSE detector.