The phrase "affects the quantity of" is correct and usable in written English.
It can be used when discussing how one variable influences or changes the amount of another variable in various contexts, such as science, economics, or statistics.
Example: "The temperature affects the quantity of gas produced in the reaction."
Alternatives: "influences the amount of" or "modifies the level of".
(K_mathrm{a}) represents a very important material property because it directly affects the quantity of energy absorbed by the material when considering a certain kind of emitter.
Also, changing B affects the quantity of observation data and accordingly the number of summands in (16) that equals 2K+1.
Note that changing M affects the quantity of observation data and accordingly the number of rows of E k that equals QM.
One of the respondents pointed out that "unreliable and seasonal rainfall affects the quantity of honey to satisfy the demand of customers due to its importance in Tanzanian society as food as well as medicine".
This in turn affects an association degree of the polymerization mixture with the immobilized template (vancomycin) and consequently affects the quantity of nanoMIP with low affinity, which should be washed out during the first elution.
The number of children only affects the quantity of potential caregivers, and other external conditions must be met for a potential caregiver to become an actual one, for example, "filial piety" to parents, certain modes of living, other social roles children play, and the children's socioeconomic status (Xia and Ma 1995).
(iii) Although miRNAs physically interact with mRNAs, ultimately miRNA regulation affects the quantities of proteins in cells rather than the quantities of mRNAs.
If not, what are the factors that affect the quantity of media attention (# of news articles) that certain places receive?
"Thus, the plaintiffs learned that, as a practical matter, the length of the bread does not affect the quantity of food the customer receives," Adelman wrote.
