• statistical mechanics, the mean squared displacement (MSD), also called mean square displacement, average squared displacement, or mean square fluctuation, is a...
    14 KB (2,605 words) - 00:42, 20 April 2025
  • quantization error Reduced chi-squared statistic Mean squared displacement Mean squared prediction error Minimum mean square error Overfitting Peak signal-to-noise...
    24 KB (3,861 words) - 12:45, 11 May 2025
  • expression, the mean squared displacement refers to just once Cartesian component ux of the vector u that describes the displacement of atoms from their...
    7 KB (1,276 words) - 15:01, 23 June 2024
  • (ARV) Central moment Geometric mean Glossary of mathematical symbols L2 norm Least squares Mean squared displacement Pythagorean addition True RMS converter...
    19 KB (2,786 words) - 10:02, 9 April 2025
  • processes. Root mean square Mean absolute error Average absolute deviation Mean signed deviation Mean squared error Squared deviations from the mean Errors and...
    11 KB (1,620 words) - 18:39, 16 February 2025
  • Thumbnail for Fick's laws of diffusion
    diffusion is the Brownian motion of one particle. The particle's Mean squared displacement from its original position is: MSD ≡ ⟨ ( x − x 0 ) 2 ⟩ = 2 n D...
    58 KB (8,249 words) - 16:41, 24 May 2025
  • Thumbnail for Brownian motion
    particles, in which the diffusion coefficient is related to the mean squared displacement of a Brownian particle, while the second part consists in relating...
    55 KB (7,145 words) - 03:09, 16 June 2025
  • Thumbnail for Anomalous diffusion
    diffusion process with a non-linear relationship between the mean squared displacement (MSD), ⟨ r 2 ( τ ) ⟩ {\displaystyle \langle r^{2}(\tau )\rangle...
    17 KB (1,940 words) - 21:26, 22 May 2025
  • {\displaystyle \mathbf {v} (0)\tau } as the system relaxes. The mean squared displacement can be determined similarly: ⟨ r 2 ( t ) ⟩ = v 2 ( 0 ) τ 2 ( 1...
    31 KB (5,246 words) - 04:59, 26 May 2025
  • Thumbnail for Diffusion
    source (for example, one single spray of perfume)—the square root of the mean squared displacement from this point. In Fickian diffusion, this is 2 n D...
    59 KB (8,686 words) - 00:02, 24 May 2025
  • respectively, and ⟨ u 2 ⟩ {\displaystyle \langle u^{2}\rangle } is the mean squared displacement. In crystallographic publications, values of U {\displaystyle...
    22 KB (3,726 words) - 16:59, 10 February 2025
  • detector, a type of chromatography detector Mean squared displacement, a statistical measure of random motion Mean signed deviation, a measure of statistical...
    4 KB (500 words) - 19:33, 2 June 2025
  • Thumbnail for X-ray photoelectron spectroscopy
    one-dimensional vibrational mean squared displacement of the j t h {\displaystyle j^{th}} emitter. In the Debye model, the mean squared displacement is calculated in...
    43 KB (6,252 words) - 19:12, 19 May 2025
  • Thumbnail for Rouse model
    {B} }T}}} , where l {\displaystyle l} is the mean bond length. Single-segment mean-squared displacement (MSD) for lag time τ ( τ ≪ τ R {\displaystyle...
    8 KB (1,143 words) - 13:45, 3 June 2025
  • Thumbnail for Passive transport
    For passive diffusion, the law of diffusion states that the mean squared displacement is ⟨ r 2 ⟩ = 2 d D t {\displaystyle \langle r^{2}\rangle =2dDt}...
    16 KB (1,776 words) - 00:36, 23 May 2025
  • Thumbnail for Annus mirabilis papers
    judgment on the question... Einstein derived expressions for the mean squared displacement of particles. Using the kinetic theory of gases, which at the...
    30 KB (3,647 words) - 09:03, 25 May 2025
  • techniques to account for multiple scattering events. From the mean squared displacement with respect to time (noted MSD or <Δr2> ), one can calculate...
    15 KB (1,894 words) - 05:26, 29 January 2025
  • Landau–Peierls instability refers to the phenomenon in which the mean square displacements due to thermal fluctuations diverge in the thermodynamic limit...
    4 KB (768 words) - 16:16, 11 May 2025
  • Thumbnail for Surface diffusion
    change with temperature. Random walk statistics describe the mean squared displacement of diffusing species in terms of the number of jumps N and the...
    25 KB (2,940 words) - 18:52, 24 February 2021
  • suspended in a (complex) fluid a direct relation between g2-1 and the mean squared displacement of the particles <Δr2> can be established. Let us note P(s) the...
    7 KB (915 words) - 13:04, 15 April 2025
  • Thumbnail for Energy cascade
    instantaneous displacement of the surface from its average position, the mean squared displacement may be represented with a displacement spectrum G(k)...
    12 KB (1,403 words) - 09:17, 14 April 2024
  • logarithmic displacements of lattice sites (which are difficult to quantify for a finite system size), but the magnitude of the mean squared displacement of the...
    31 KB (4,374 words) - 14:58, 9 April 2025
  • Thumbnail for Run-and-tumble motion
    the mean squared displacement ⟨r(t)2⟩ generically scales as ⟨r(t)2⟩ ~ t2 for small t and ⟨r(t)2⟩ ~ t for large t. In two dimensions, the mean squared displacement...
    29 KB (3,192 words) - 08:19, 14 June 2025
  • Thumbnail for Wigner crystal
    rs. The criterion states that the crystal melts when the root-mean-square displacement of the electrons ⟨ r 2 ⟩ {\displaystyle {\sqrt {\langle r^{2}\rangle...
    23 KB (2,867 words) - 13:44, 24 May 2025
  • sufficiently well-described by the normal diffusion model, where the mean squared displacement (MSD) grows linearly with time. Instead the diffusion may be better...
    63 KB (7,969 words) - 21:02, 28 May 2025
  • Dtube = kB T μtube. By then recalling that in 1-dimension the mean squared displacement due to Brownian motion is given by s(t)2 = 2Dtube t, we obtain...
    12 KB (1,599 words) - 14:49, 21 September 2024
  • amplitude of the displacement (movements of the air or the diaphragm of a speaker) is described. The logarithm of the amplitude squared is usually quoted...
    13 KB (1,620 words) - 15:24, 3 June 2025
  • most famous statistical properties of this process is that the mean squared displacement (MSD) of a particle in the file follows, M S D ≈ t 1 2 {\displaystyle...
    22 KB (2,777 words) - 19:11, 22 January 2025
  • Thumbnail for Trypanosoma cruzi
    positively correlated with the average parasite mean speed, and negatively correlated with the mean square displacement (MSD). Therefore, the motility modifications...
    28 KB (3,203 words) - 08:00, 9 June 2025
  • averaged force, elasticity and displacement used to account for stochastic forces. Time-averaged Mean squared displacement, M S D = ⟨ ( X ( t ) ) 2 ⟩ {\displaystyle...
    10 KB (1,328 words) - 21:20, 11 November 2023