The phrase "a usable source" is correct and usable in written English.
It can be used when referring to a source of information that is practical and can be effectively utilized for a specific purpose, such as research or reference.
Example: "For my research paper, I need to find a usable source that provides credible data on climate change."
Alternatives: "an accessible source" or "a reliable source".
Thus, the "dismissal" of biography as a credible and usable source seemed an inevitable methodological implication of the broader sociological dismissal of the individual as a legitimate focus of research in science studies as such (Shortland and Yeo 1996).
A reference microphone may be placed outside of the usable source microphone area to capture a signal representative of the undesired ambient and interference noise.
A new area of prospective major import is in the esoteric sounding but eminently practical Energy Harvesting field essentially a closed system that converts commonplace physical occurrences as vibrations, temperature variation and radiant energy into a usable energy source.
The electrical properties of fabricated paper TENGs were comprehensively investigated and proved to be a usable power source by using a well-designed vibration platform and practical body motion, respectively.
Together, these results suggest that M. oryzae at 72 hpi is nutrient deprived and may be degrading plant cell walls as a usable carbon source.
The large flux through dihydroxyacetone (DHA) kinase is unexpected, as DHA is not known as an intracellular metabolite in E. coli except as a usable carbon source [ 43] or in the degradation of glycerol [ 44, 45], which occurs at a very low rate in this particular scenario (5.5 μmol gDW−1 h−1, FVA: 4 19 μmol gDW−1 h−1).
Also unless otherwise noted, experiments were performed in DM25 medium, in which glucose at 25 μg/ml is the only usable source of carbon.
Digital photo is one of the most usable sources of field data, which can be easily captured without additional cost and time for construction projects.
Importantly, the reduction of these dyes is dependent on the presence of a usable carbon-energy source in the medium, such as glucose.
