1.The Balmer Formula is concluded from the relations among four mixed and disorderly digits calculated from the ratios of wave lengths of four spectral lines of hydrogen to their ultimate wave lengths.由氢的 4条谱线的波长与其极限波长之比得出四个杂乱的数 ,从其关系中得出巴尔末公式。 英文短句/例...
The Balmer Formula is concluded from the relations among four mixed and disorderly digits calculated from the ratios of wave lengths of four spectral lines of hydrogen to their ultimate wave lengths. 由氢的 4条谱线的波长与其极限波长之比得出四个杂乱的数 ,从其关系中得出巴尔末公式。
Although the poorly known inelastic hydrogen collisions thus remain an important uncertainty, the large metallicity-dependent non-LTE effects seem to point to a resulting "low" (compared to LTE) [O/Fe] in metal-poor halo stars. Conclusions. Our results may be important in solving the long-...
Stark broadening parameters, line widths and shifts, for 15 N VI multiplets are calculated using semiclassical perturbation theory for temperatures from 50,000 K to 2,000,000 K, and perturber density of 1016 cm−3. As perturbers have been taken electro
Table 1.Explanation of spectral shape descriptors and their estimation formula. a SC: Spectral centroid; SP: Spectral spread; SS: Spectral skewness; SK: Spectral kurtosis; SE: Spectral entropy; SF: Spectral flatness; SR: Spectral roll-off. ...
To find the ratio between the wavelengths of the most energetic spectral lines in the Balmer and Paschen series of the hydrogen spectrum, we can follow these steps:Step 1: Understand the Series The Balmer series corresponds to
Leading spectral moments for easy computation of pressure effects on rotational lines Explicit classical‐limit formulae for two leading spectral moments characterizing the anisotropy of the interaction potential are derived for fast collisi... A Sokolov,A Kouzov,J Buldyreva - 《Journal of Raman Spec...
The O-, B-, and A-type stars are primarily classified by the appearance of their hydrogen and helium lines. The O-type stars and their spectral subtypes O9–O3 are classified on the basis of the He II λ4541/He I λ4471 line ratio which increases with increasing temperature until the ...
2. One of a number of lines of position defined by an azimuthal navigation facility and identified in terms of its bearing (usually magnetic) from that facility. radial-beam tube A vacuum tube producing a flat, radial electron beam that can be rotated about the axis of the tube by an ...
The method performance testing experiment, demonstrated a deviation of less than 1.0% between the laser Raman test results of hydrogen sulfide and the standard gas indication value, with a relative standard deviation of less than 0.6% across seven measurement results. Similarly, the relative deviation...