The phrase "a quantity measure" is correct and usable in written English.
It can be used when referring to a specific measurement or standard used to quantify something, such as weight, volume, or length.
Example: "In scientific experiments, a quantity measure is essential for ensuring accurate and reproducible results."
Alternatives: "a measurement unit" or "a quantifiable metric".
A common problem in astronomy is the conversion of a quantity measured in some units into a quantity based on other units.
The acidity of these concentrated solutions is commonly measured by the acidity function, H0, a quantity measured by the effect of the solvent on a basic indicator I.
The analytical predictions offer an immediate insight into how fluid pulsation affects phase shift, which is a quantity measured by CFMs to estimate the mass flow, and lead to hypotheses for more complex geometries, i.e. industrial CFMs.
Indeed, many time series consist of maybe a dozen quantities, measured at a handful of time points, and replicates are usually scarce.
Many assert a dependence between varying quantities measuring certain properties, as in the law that the pressure of a gas under steady temperature is inversely proportional to its volume (see Boyle's law).
Figure 2 illustrates a comparison of fluorescence quantities measured in serum by means of LIFS, chemical extraction of C-labelled mTHPC, as well as the relative fluorescence intensity recorded on normal blood vessel endothelium by FM.
Failure of the system takes place by first passages at critical levels of so-called damage indicators, which are non-decreasing response quantities measuring at a macroscopic scale the strength and stiffness deterioration.
Four independent quantities measured as a function of ATP are plotted in Figure 4E,F: p −, p−5, τ and τ5.
We thus define the Interaural Diffraction Index (IDI), a frequency-dependent quantity that represents how much the ITD varies because of diffraction effects: I D I (f ) = f (I T D p (f ) − I T D g (f ) ). IDI is a phase quantity (measured in cycles) that also has an interesting interpretation in terms of signal processing (see section below).
