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  2. X-ray diffraction - Wikipedia

    en.wikipedia.org/wiki/X-ray_diffraction

    X-ray diffraction is a generic term for phenomena associated with changes in the direction of X-ray beams due to interactions with the electrons around atoms. It occurs due to elastic scattering , when there is no change in the energy of the waves.

  3. XRD - Wikipedia

    en.wikipedia.org/wiki/XRD

    XRD may refer to: X-ray diffraction , used to study the structure, composition, and physical properties of materials Extensible Resource Descriptor , an XML format for discovery of metadata about a web resource

  4. Glossary of video terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_video_terms

    a) The rate at which frames of video data are scanned on the screen. In an NTSC system, the frame rate is 29.97 frames per second. For PAL, the frame rate is 25 frames per second. b) The number of frames per second at which a video clip is displayed. c) The rate at which frames are output from a video decoding device or stored in memory. [1]

  5. X-ray diffraction computed tomography - Wikipedia

    en.wikipedia.org/wiki/X-ray_diffraction_computed...

    The first implementation of the technique at synchrotron facilities was performed in 1998 by Kleuker et al. [2] X-ray diffraction computed tomography can be divided into two main categories depending on how the XRD data are being treated, specifically the XRD data can be treated either as powder diffraction or single crystal diffraction data ...

  6. X-ray fluorescence - Wikipedia

    en.wikipedia.org/wiki/X-ray_fluorescence

    X-ray diffraction (XRD) is still the most used method for structural analysis of chemical compounds. Yet, with increasing detail on the relation of K β {\displaystyle K_{\beta }} -line spectra and the surrounding chemical environment of the ionized metal atom, measurements of the so-called valence-to-core (V2C) energy region become ...

  7. Three-dimensional X-ray diffraction - Wikipedia

    en.wikipedia.org/wiki/Three-dimensional_X-ray...

    Three-dimensional X-ray diffraction (3DXRD) is a microscopy technique using hard X-rays (with energy in the 30-100 keV range) to investigate the internal structure of polycrystalline materials in three dimensions.

  8. Extended X-ray absorption fine structure - Wikipedia

    en.wikipedia.org/wiki/Extended_X-ray_absorption...

    XAS is an interdisciplinary technique and its unique properties, as compared to x-ray diffraction, have been exploited for understanding the details of local structure in: glass, amorphous and liquid systems; solid solutions; doping and ionic implantation of materials for electronics; local distortions of crystal lattices; organometallic compounds

  9. Sora (text-to-video model) - Wikipedia

    en.wikipedia.org/wiki/Sora_(text-to-video_model)

    Sora is a text-to-video model developed by OpenAI. The model generates short video clips based on user prompts, and can also extend existing short videos. Sora was released publicly for ChatGPT Plus and ChatGPT Pro users in December 2024. [1] [2]