The phrase "ascertained beyond" is correct and usable in written English.
It can be used in contexts where you want to express that something has been determined or confirmed to a degree that leaves no doubt.
Example: "The evidence was ascertained beyond any reasonable doubt, leading to a swift conviction."
Alternatives: "determined beyond" or "confirmed beyond".
With some scale factor, a range 0<¯¯¯Jmax⩽1.506Pr−1/3 for the representative material volume can be ascertained, beyond which the optimization exercise reduces to a trivial one and traditional constant thickness profile becomes a recognized design.
It has since been ascertained, beyond a doubt, that the murderer of the unfortunate gentleman is no other than his third son, Richard Dadd, a fine young man, 24 years age, and that he committed the act whilst labouring under an aberration of intellect.
Since the stratigraphic sequence is not ascertained beyond doubt [34], the artefacts were mainly dated on grounds of typological parallels [35, Schwarzer (in preparation) Antikes, byzantinisches und islamisches Glas aus Pergamon. Pergamenische Forschungen].
Numbers of reads for a given sequence methodology have been empirically ascertained, beyond which increased sequence data yield little or no further variant information [ 1].
Although the state of the economy remains difficult to ascertain beyond dubious official figures, huge sums are lost to corruption.
Justice Erlbaum said, however, that he could not ascertain beyond a reasonable doubt that what had happened in Mr. Monserrate's apartment had been an intentional attack.
With the recent expansion of data collection in longitudinal household surveys, future analyses should also assess the predictive power of changes in performance between survey waves, which may enhance models of health and survival beyond what can ascertained from cross-sectional measures.
The emergence of molecular systematic approaches has allowed the more precise and rapid characterization of diversity among populations of invasive species beyond what can be ascertained from morphological evaluations.
However, the actual role of the gravity waves and QTDW to control the easterly wind can only be ascertained with further intensive analysis which is beyond the scope of the present study.
They write blogs about healthy living, which invariably means randomly cutting out various food groups and gluten (although how many of them actually know what gluten is remains to be ascertained), even though most of them have no nutritional training beyond feeding themselves.
This latter fact can be ascertained even though the H II regions cannot be seen clearly beyond a few thousand light-years from the Sun.
