The phrase "are studied by evaluating" is correct and usable in written English.
It can be used in contexts where research or analysis is being discussed, particularly in academic or scientific writing.
Example: "The effects of climate change on biodiversity are studied by evaluating various ecological indicators."
Alternatives: "are examined through assessment" or "are analyzed by means of evaluation."
Acoustic energy losses are studied by evaluating various attenuation parameters and by comparing the changes in behavior at three different frequencies.
The relationships between PeC and fifteen other centrality measures (DC, BC, CC, SC, EC, IC, BN, DMNC, LAC, SoECC, RL, LI, LR, NC, and MC) are studied by evaluating the overlaps between their predicted proteins.
The kinetics of the gas phase reactions was studied by evaluating the reaction paths and the rate coefficients of the overall oxidation process.
Moreover, the environmental compatibility was studied by evaluating the leaching behavior of heavy metals under specified conditions.
Also, the hydraulic performance of the flow patterns was studied by evaluating the pressure drop and pumping power.
The microcirculation can also be studied by evaluating the response generated by a hypoxic stress event, such as during a transient vascular occlusion test (VOT) [7, 8].
The photoactivity of the as-prepared rGO-TiO2 composite was studied by evaluating its performance in the photoreduction of CO2 under visible light illumination.
The effect of the cementing ring was studied by evaluating the mutual thermal resistance (to heat conduction) of the concrete and of the rock.
In functional assays, recognised agonists and antagonists were studied by evaluating their capability to modulate the cAMP production in hA2BCHO and in HMC-1 cells.
Interference of Sonchus oleraceus was studied by evaluating its competitive and allelopathic potential on three weed species: Brassica nigra, Chenopodium murale and Melilotus indicus.
The antioxidant potentials of each honey sample were studied by evaluating the free radical-scavenging activity of the DPPH radical, which is based on the method proposed by [7].
