The phrase "are substantiated by a" is correct and usable in written English.
It can be used when discussing evidence or support for a claim or argument in a formal context.
Example: "The findings of the research are substantiated by a comprehensive analysis of the data collected over five years."
Alternatives: "are supported by a" or "are backed by a".
These and other aspects are substantiated by a discussion of several design cases of different aerospace structures.
Simulations are substantiated by a case-study involving heat flux measurement during filmwise condensation of steam on a flat plate in the presence of air.
Indeed, such impressions are substantiated by a small but visible group of artists in Dakar who bear all the emblems of financial success – a villa equipped with the latest electronic gadgets, a car, regular international travel, and exhibition reviews in one of Dakar's many newspapers.
Our observations are substantiated by a postoperative decline in his erythropoietin level and a clinical requirement for erythropoietin treatment.
Our findings are substantiated by a study conducted in the Czech Republic by scientists from the U.S. Environmental Protection Agency EPAA).
These clinical findings are substantiated by a preclinical study in rats in which hepatic dysfunction induced by bile duct ligation did not alter the exposure (AUC0 - 11) of bevacizumab following a single 20 mg/kg IV bolus injection [ 27].
Furthermore, these findings can lead to the assumption that increased sensitivity to β-mimetics detected in the later stages of chick heart development is substantiated by a more efficient coupling of the β-ARs to their downstream effector AC.
That assessment was substantiated by a preliminary post-mortem report put out by the California Horse Racing Board and the University of California-Davis in 2009, the year before Santa Anita switched back to dirt.
This classification and comparison is substantiated by a broad historical background on how CAES has evolved over time from its very beginning until its most recent advancements.
It is substantiated by a case study of two real-life housing projects, conducted to manifest the hindrances and the benefits achieved.
