The phrase "auxiliary sources" is correct and usable in written English.
It can be used when referring to additional materials or references that support or provide context to a primary source of information.
Example: "In my research paper, I will include auxiliary sources to strengthen my argument and provide a broader perspective on the topic."
Alternatives: "supplementary sources" or "secondary sources".
It avoids the use of auxiliary sources within each particle that play a role in some classical formulations.
Two type of HPSs are consisted and compared; 1) fuel cell (FC) as the main source, and ultracapacitor (UC) as the auxiliary sources, 2) FC as the main source, and battery and UC as the auxiliary sources.
Finally, natural and artificial causes of the change in the object area were examined by comparing the satellite data analysis results with meteorological data and auxiliary sources.
In any power system, when faults occur, automatic transfer switches operate to switch between normal and auxiliary sources to maintain service continuity to critical loads.
In microgrids, this switching scheme allows operation to continue in islanded mode; in ships, it allows supply of selected loads from auxiliary sources.
In the most studied cases, one or multiple auxiliary sources of energy were used in order to increase the performances of the dryer or to decrease drying time.
To fully recharge these devices, you need an auxiliary source that meets or exceeds that capacity.
An electric motor provides the primary motive force, and a small internal combustion engine serves as an auxiliary source of power to extend the range that the car can go between charges.
The study does concede that these user generated newsfeeds may not mirror the important news of the day because they may serve has an auxiliary source.
Owing to the sporadic wind variations, wind energy conversion systems can only be used as an auxiliary source.
This may be considered as an auxiliary source of information for image ranking methods (discussed in the previous section).
