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  2. Spot analysis - Wikipedia

    en.wikipedia.org/wiki/Spot_analysis

    Spot analysis, spot test analysis, or spot test is a chemical test, a simple and efficient technique where analytic assays are executed in only one, or a few drops, of a chemical solution, preferably in a great piece of filter paper, without using any sophisticated instrumentation. The development and popularization of the test is credited to ...

  3. BDA (TSA program) - Wikipedia

    en.wikipedia.org/wiki/BDA_(TSA_program)

    BDA (TSA program) Behavior Detection and Analysis ( BDA ), until 2016 called Screening of Passengers by Observation Techniques ( SPOT ), is a program launched in the United States by the Transportation Security Administration to identify potential terrorists among people at an airport by a set of 94 objective criteria, all of which are signs ...

  4. Low-energy electron diffraction - Wikipedia

    en.wikipedia.org/wiki/Low-energy_electron...

    Low-energy electron diffraction ( LEED) is a technique for the determination of the surface structure of single-crystalline materials by bombardment with a collimated beam of low-energy electrons (30–200 eV) [ 1] and observation of diffracted electrons as spots on a fluorescent screen.

  5. Arago spot - Wikipedia

    en.wikipedia.org/wiki/Arago_spot

    Notation for calculating the wave amplitude at point P 1 from a spherical point source at P 0.. At the heart of Fresnel's wave theory is the Huygens–Fresnel principle, which states that every unobstructed point of a wavefront becomes the source of a secondary spherical wavelet and that the amplitude of the optical field E at a point on the screen is given by the superposition of all those ...

  6. Selected area diffraction - Wikipedia

    en.wikipedia.org/wiki/Selected_area_diffraction

    Selected area (electron) diffraction (abbreviated as SAD or SAED) is a crystallographic experimental technique typically performed using a transmission electron microscope (TEM). It is a specific case of electron diffraction used primarily in material science and solid state physics as one of the most common experimental techniques.

  7. Interactive whiteboard - Wikipedia

    en.wikipedia.org/wiki/Interactive_whiteboard

    An interactive whiteboard ( IWB ), also known as interactive board, interactive display, interactive digital board or smart board, is a large interactive display board in the form factor of a whiteboard. It can either be a standalone touchscreen computer used independently to perform tasks and operations, or a connectable apparatus used as a ...

  8. File:Spot Resolutions.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Spot_Resolutions.pdf

    File:Spot Resolutions.pdf. File. File history. File usage. Metadata. Size of this JPG preview of this PDF file: 476 × 599 pixels. Other resolutions: 191 × 240 pixels | 381 × 480 pixels | 610 × 768 pixels | 1,233 × 1,552 pixels. Original file ‎ (1,233 × 1,552 pixels, file size: 6.75 MB, MIME type: application/pdf, 4 pages) This is a file ...

  9. How many workers can AI really replace? Estimates are all ...

    www.aol.com/many-workers-ai-really-replace...

    Only a little more than 4,000 job cuts were considered AI-inflicted, according to the Challenger, Gray & Christmas analysis of layoff data. Investment bankers, analysts, and researchers have made ...

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