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  2. Rubric (academic) - Wikipedia

    en.wikipedia.org/wiki/Rubric_(academic)

    Rubric (academic) In the realm of US education, a rubric is a "scoring guide used to evaluate the quality of students' constructed responses" according to James Popham. [1] In simpler terms, it serves as a set of criteria for grading assignments. Typically presented in table format, rubrics contain evaluative criteria, quality definitions for ...

  3. Rutherford backscattering spectrometry - Wikipedia

    en.wikipedia.org/wiki/Rutherford_backscattering...

    Rutherford backscattering spectrometry (RBS) is an analytical technique used in materials science.Sometimes referred to as high-energy ion scattering (HEIS) spectrometry, RBS is used to determine the structure and composition of materials by measuring the backscattering of a beam of high energy ions (typically protons or alpha particles) impinging on a sample.

  4. Statistical mechanics - Wikipedia

    en.wikipedia.org/wiki/Statistical_mechanics

    In physics, statistical mechanics is a mathematical framework that applies statistical methods and probability theory to large assemblies of microscopic entities. Sometimes called statistical physics or statistical thermodynamics, its applications include many problems in the fields of physics, biology, [1] chemistry, neuroscience, [2] computer science, [3] [4] information theory [5] and ...

  5. Frame of reference - Wikipedia

    en.wikipedia.org/wiki/Frame_of_reference

    t. e. In physics and astronomy, a frame of reference (or reference frame) is an abstract coordinate system whose origin, orientation, and scale are specified by a set of reference points ― geometric points whose position is identified both mathematically (with numerical coordinate values) and physically (signaled by conventional markers). [1]

  6. Differential scanning calorimetry - Wikipedia

    en.wikipedia.org/wiki/Differential_scanning...

    Dielectric thermal analysis. Differential scanning calorimetry (DSC) is a thermoanalytical technique in which the difference in the amount of heat required to increase the temperature of a sample and reference is measured as a function of temperature. [1] Both the sample and reference are maintained at nearly the same temperature throughout the ...

  7. X-ray photoelectron spectroscopy - Wikipedia

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

    XPS physics - the photoelectric effect.. Because the energy of an X-ray with particular wavelength is known (for Al K α X-rays, E photon = 1486.7 eV), and because the emitted electrons' kinetic energies are measured, the electron binding energy of each of the emitted electrons can be determined by using the photoelectric effect equation,

  8. Raman scattering - Wikipedia

    en.wikipedia.org/wiki/Raman_scattering

    In physics, Raman scattering or the Raman effect (/ ˈrɑːmən /) is the inelastic scattering of photons by matter, meaning that there is both an exchange of energy and a change in the light's direction. Typically this effect involves vibrational energy being gained by a molecule as incident photons from a visible laser are shifted to lower ...

  9. Energy-dispersive X-ray spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Energy-dispersive_X-ray...

    One peak is from the L shell of iron. Energy-dispersive X-ray spectroscopy (EDS, EDX, EDXS or XEDS), sometimes called energy dispersive X-ray analysis (EDXA or EDAX) or energy dispersive X-ray microanalysis (EDXMA), is an analytical technique used for the elemental analysis or chemical characterization of a sample.