abundance ratio in a sentence

1. A gas with cosmological abundances of hydrogen and helium is much more transparent than gas with solar abundance ratios.
2. The lack of a deep convection zone would mean that the outer layers would retain higher abundance ratios of these heavy elements.
3. The conversion between flux units and TNU depends on the thorium to uranium abundance ratio ( Th / U ) of the emitter.
4. Clear evidence of the presence of 26 Al at an abundance ratio of 5?0  " 5 was shown by Lee, et al.
5. In the same paper, the authors also elaborate on the HNC / HCN abundance ratio as a means of determining the temperature of the environment.
6. It's difficult to find abundance ratio in a sentence.
7. The first graph ( on the left; fig . 1 in paper ) plots the nitrogen / oxygen vs . oxygen / hydrogen abundance ratio.
8. A number of detections have been made towards the end of confirming the temperature dependence of the abundance ratio of [ HNC ] / [ HCN ].
9. For example, quantitative analysis performed by mass spectrometry on biological samples can determine, by the relative abundance ratio of specific proteins, indications of certain diseases, like cancer.
10. In 1992, Schilke et al . measured abundances of HNC, HCN, and deuterated analogs along the OMC-1 ridge and core and confirmed the temperature dependence of the abundance ratio.
11. The mean cyclic-to-linear abundance ratio for C 3 H is found to be 2.7, although a large variation in this ratio is observed from source to source.
12. A strong fit between temperature and the abundance ratio would allow observers to spectroscopically detect the ratio and then extrapolate the temperature of the environment, thus gaining great insight into the environment of the species.
13. The methane abundance relative to molecular hydrogen in the stratosphere is about 10  " 4, while the abundance ratio of other light hydrocarbons, like ethane and acetylene, to molecular hydrogen is about 10  " 6.
14. This has led to unusual uncertainty in the standardized atomic weight of lithium, since this quantity depends on the natural abundance ratios of these naturally-occurring stable lithium isotopes, as they are available in commercial lithium mineral sources.
15. In 1986, Goldsmith et al . measured the abundances of rare isotopes of HNC and HCN along the OMC-1 and determined that the abundance ratio varies by more than an order of magnitude in warm regions versus cold regions.
16. The presence of such carbon-bearing macromolecules in the X-shaped nebular component, while the equatorial regions are known to contain silicate-rich ( O-bearing ) dust grains, was interpreted as due to a change of the O / C abundance ratio of the primary star during its late evolution.
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