The phrase "as a sustained source" is correct and usable in written English.
It can be used to describe something that provides a continuous or ongoing supply of something, such as information, energy, or support.
Example: "The river serves as a sustained source of water for the surrounding communities throughout the year."
Alternatives: "as a continuous source" or "as a reliable source".
Interestingly, it appears that sulfuric acid served as a sustained source of sulfate for approximately 40 years.
Maintaining an aquifer as a sustained source of drinking water requires preventing the development and spreading of conditions, like those described here, favorable to the mobilization of As.
We hypothesized that a 3-dimensional human fibroblast culture (3DFC) functions as a sustained source of angiogenic cytokines, thereby augmenting native angiogenesis and limiting adverse effects of myocardial ischemia.
Given the dominance of adsorption reactions to the overall reactivity of the sediments with As and other groundwater contaminants, improved understanding of the chemical properties of the nanoparticulate material that comprises the coatings on sediment grain surfaces will also contribute to managing these types of aquifers as a sustained source of drinking water.
Previous studies on the simulation of various mathematical models of human atrial cells and tissue have shown that the Cherry and Evans model produces stable spiral waves [ 12] which serve as a sustained RotA source in our simulation study.
Arc welding, use of a sustained luminous electrical discharge (arc) as a source of heat for melting the filler metal (welding rod) and the metals being welded.
"There has been a sustained attack since the morning from many sources in many countries," said Palestinian Authority spokesman Ghassan Khatib.
The stock market, which Mr. Greenspan had identified as the source of much of the excess demand in the economy, remains volatile, and a sustained move up or down would no doubt heavily influence Fed policy.
Thus, it is highly likely that F3.VEGF grafts functioned as localized and sustained cellular sources providing VEGF directly to the lesion site.
This underlines that molecular impurities with a low ionization energy are necessary as an electron source to sustain the plasma in the μ-APPJ operated in helium.
