The phrase "a more rigorous set" is correct and usable in written English.
It can be used when discussing a collection of items, rules, or standards that are more strict or demanding than a previous version.
Example: "In order to improve the quality of our research, we need to implement a more rigorous set of criteria for evaluating submissions."
Alternatives: "a stricter collection" or "a more stringent group".
The worst Head Start preschools are being forced to re-compete for federal funding under a more rigorous set of standards.
Instead comes a more rigorous set of tests, the English Baccalaureate Certificate.Under pressure from the Liberal Democrats, some details of the plans leaked in the summer have changed.
This year's tests were the first to be aligned with a more rigorous set of national academic goals known as the Common Core.
The Pentagon officials said that they would turn the largest contracts in Kuwait over to more seasoned military procurement specialists in the United States and that they had set up a more rigorous set of contract review procedures.
The exams were some of the first in the nation to be aligned with a more rigorous set of standards known as the Common Core, which emphasize deep analysis and creative problem-solving over short answers and memorization.
The performances on the new exams, which were some of the first nationwide to be aligned with a more rigorous set of standards known as the Common Core, offered Mr. Bloomberg a chance to boast about his education record as his 12-year run as mayor comes to a close.
At these farms, cattle are out on pasture practicing not just the NOP basics but complying with an even more rigorous set of standards -- standards which actually have a positive impact on the animals, the planet, and the community.
(1) The more rigorous set of intergenic transcripts was acquired from the intersection of intergenic transcripts by comparing with four database annotations (Ensembl [ 27], UCSC [ 28], Gencode [ 29] and Refseq [ 30]), respectively.
You'll likely be presented with the option to do this from first log in, but may want to click into Taste Preferences to provide a more rigorous data set.
Those holding the more formidable board even adopted a more rigorous mind-set, and proved more likely to consider the connection between the livability of Amsterdam and the effectiveness of its leader.
This means that no difference in response between the coatings could be ascertained with this method, but it is plausible that a more rigorous measurement set-up would be able to better grade the samples with respect to piezoelectricity.
