The phrase "and proportion of the" is correct and usable in written English.
It can be used when discussing the distribution or ratio of elements within a particular context, such as data analysis or research findings.
Example: "The study examined the relationship between income levels and proportion of the population living in poverty."
Alternatives: "and ratio of the" or "and share of the".
The content of phenolic acids, SDG and other compounds are proportional to values observed while row seedcake analysis and proportion of the particular compound do not change after freeze drying and dilution process.
How does the nature and proportion of the mix change over time?
Korea is experiencing a rapid increase in the number and proportion of the older population aged 65 and older.
But the food is different, island to island, and one key difference is the mix and proportion of the herbs and spices used in stews and rice dishes.
The difference was in the cut and proportion of the clothes -- and isn't that what designers are supposed to strive for?
Switches control the flow and proportion of the pigments, which spray in a single stream as he swings the pendulum.
The coatings differed not only in microstructural scale, but also in the nature and proportion of the phases present and in the overall degree of decarburization.
The configuration and proportion of the reinforcing steel bars and the types of transverse cross-bracing and transverse straps were the main test variables.
These coatings were especially designed to vary the size and proportion of the (Cr,Fe 23C6 carbides that are present in the microstructure at room temperature.
Although the total explained variation and proportion of the variation explained by each set of variables were consistently low, most of the effects on the fish community composition data were significant.
These castings were especially designed to vary the type, size and proportion of the different carbides that might be present in the microstructure at room temperature, either as a primary constituent or associated with the matrix.
