According to the relation of mass fraction of elements, the mass ratio of ({text{N}}_{2}) and ({text{CO}}_{2}) is about 4: 1 (Cheng and Han 2015).
Through calculating the ceramic mass fraction of each element within the grid, the modeling of the 2D composition contours of the coatings is in good agreement with the SEM experimental results.
The SLD for (Ti,Mo)C was estimated as ρTiMoC = NTiMoC xTibTi + xMobMo + xCbC) = 3.92 × 10−6 A−2, where x is the mass fraction of the element.
ρ i is the density of individual element and m i is the mass fraction of the individual element.
The major constituent elements are (mass fraction) aluminum, 3.4%; iron, 3.9%; and potassium, 1.1%; the minor constituent elements are sodium, 0.43%; lead, 0.66%; and zinc, 0.48%.
Abstract: We calculate the eigenfrequencies and eigenfunctions of the acoustic oscillations of giant exoplanets and explore the dependence of the characteristic frequency ν0 and the eigenfrequencies on several parameters: the planet mass, the planet radius, the core mass, and the heavy element mass fraction in the envelope.
Peak area above continuum can be used to infer mass fraction (wt%) of each element over an area of the planet's surface, leading to chemical abundance maps.
Major constituent elements (> 1% mass fraction) are silicon, sulfur, aluminum, iron, potassium, and sodium.
Results of the principal component analysis for standardized chemical element mass fractions indicated an intricate correlation among chemical elements evaluated, as a response of the contribution of natural and anthropogenic sources of chemical elements for ecosystems.
The element of interest i absorbs, between t and (t + dt), a fraction of the incident beam given by: ( frac{W_i {mu}_i left({E}_0right) {uprho}_sdt}{ sin phi } ), where μi( E0) is the mass attenuation coefficient of the element of interest, and W i its mass fraction.
