- principal spectral series
- Техника: главная серия спектра
Универсальный англо-русский словарь. Академик.ру. 2011.
principal spectral series
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Principal components analysis — Principal component analysis (PCA) is a vector space transform often used to reduce multidimensional data sets to lower dimensions for analysis. Depending on the field of application, it is also named the discrete Karhunen Loève transform (KLT),… … Wikipedia
Principal component analysis — PCA of a multivariate Gaussian distribution centered at (1,3) with a standard deviation of 3 in roughly the (0.878, 0.478) direction and of 1 in the orthogonal direction. The vectors shown are the eigenvectors of the covariance matrix scaled by… … Wikipedia
Principal series representation — In mathematics, the principal series representations of certain kinds of topological group G occur in the case where G is not a compact group. There, by analogy with spectral theory, one expects that the regular representation of G will decompose … Wikipedia
principal line — noun : the first and most intense line of a spectral line series … Useful english dictionary
Time series — Time series: random data plus trend, with best fit line and different smoothings In statistics, signal processing, econometrics and mathematical finance, a time series is a sequence of data points, measured typically at successive times spaced at … Wikipedia
Balmer series — The Balmer series or Balmer lines in atomic physics, is the designation of one of a set of six different named series describing the spectral line emissions of the hydrogen atom.The Balmer series is calculated using the Balmer formula, an… … Wikipedia
Lyman series — In physics, the Lyman series is the series of transitions and resulting emission lines of the hydrogen atom as an electron goes from n ge; 2 to n = 1 (where n is the principal quantum number referring to the energy level of the electron). The… … Wikipedia
Humphreys series — In atomic physics, the Humphreys series is the designation of one of a set of six different named series describing the spectral line emissions of the hydrogen atom, and was discovered by Curtis J. Humphreys in 1953. In the Humphreys series the… … Wikipedia
Balmer series — noun The set of spectral lines of the hydrogen atom that correspond to transitions involving a principal quantum number n=2 … Wiktionary
Lyman-alpha line — In physics, the Lyman alpha line is a spectral line of hydrogen, or more generally of one electron ions, in the Lyman series, emitted when the electron falls from the n = 2 orbital to the n = 1 orbital, where n is the principal quantum number. In … Wikipedia
Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… … Wikipedia
