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  2. Kelvin probe force microscope - Wikipedia

    en.wikipedia.org/wiki/Kelvin_probe_force_microscope

    This vibration causes a change in probe to sample distance, which in turn results in the flow of current, taking the form of an ac sine wave. The resulting ac sine wave is demodulated to a dc signal through the use of a lock-in amplifier. [7] Typically the user must select the correct reference phase value used by the lock-in amplifier.

  3. AFm phases - Wikipedia

    en.wikipedia.org/wiki/AFm_phases

    AFm form inter alia when tricalcium aluminate 3CaO·Al 2 O 3, or C 3 A in CCN, reacts with dissolved calcium sulfate (CaSO 4), or calcium carbonate (CaCO 3). As the sulfate form is the dominant one in AFm phases in the hardened cement paste (HCP) in concrete, AFm is often simply referred to as Aluminate Ferrite monosulfate or calcium aluminate ...

  4. Zlín Z 526 - Wikipedia

    en.wikipedia.org/wiki/Zlín_Z_526

    The Z-526 AFM was built between 1981 and 1984 and was powered by a 155 kW (210 hp) Avia M337 engine, had tip tanks and a lengthened fuselage. The aircraft was later developed into the Zlin Z-726. More than 1,400 Z-526s were manufactured, many for military and private flying schools.

  5. Aircraft flight manual - Wikipedia

    en.wikipedia.org/wiki/Aircraft_flight_manual

    Title of the Boeing T-43A Flight Manual. An aircraft flight manual (AFM) is a paper book or electronic information set containing information required to operate an aircraft of certain type or particular aircraft of that type (each AFM is tailored for a specific aircraft, though aircraft of the same type naturally have very similar AFMs).

  6. Depletion force - Wikipedia

    en.wikipedia.org/wiki/Depletion_force

    Atomic force microscopy (AFM) is commonly used to directly measure the magnitude of depletion forces. This method uses the deflection of a very small cantilever contacting a sample which is measured by a laser.

  7. Download, install, or uninstall AOL Desktop Gold - AOL Help

    help.aol.com/articles/aol-desktop-downloading...

    Learn how to download and install or uninstall the Desktop Gold software and if your computer meets the system requirements.

  8. The 2026 World Cup will attract millions of foreign fans ...

    www.aol.com/2026-world-cup-attract-millions...

    The U.S. visa process. Underpinning the issue, which will disproportionately affect fans from Latin America and Africa, is a visa process that’s complicated and time-consuming.

  9. AFt phases - Wikipedia

    en.wikipedia.org/wiki/AFt_phases

    Calcium aluminates can form complex salts in combination with different types of anions.Two series of calcium aluminates are known in cement chemistry: AFm and AFt phases, being respectively mono- or tri-substituted with a given divalent anion X (e.g. SO 2− 4, CO 2− 3, or hosting a divalent impurity such as SeO 2− 4 [3]...), or with two units of a monovalent anion, e.g. OH −, Cl − ...