The phrase "a firmness of" is correct and usable in written English.
It can be used to describe a quality or characteristic of being firm, often in relation to opinions, beliefs, or physical attributes.
Example: "The speaker conveyed a firmness of conviction that resonated with the audience."
Alternatives: "a strength of" or "a solidity of".
A person with the acute fever of sobriety or recovery comes to have a firmness of mind and character.
On Kosovo his government has shown a firmness of purpose and a closely co-ordinated response few had expected.
This is a design and a wind issue and a firmness of the green issue, not that we were asleep at the switch".
A firmness of purpose that looks beyond making money - ironically, a key to making much more money than those companies without it - is dependent on stable ownership.
Ms. Carlile, who hails from the outskirts of Seattle, has the kind of voice most Nashville producers would be happy to work with: roomy, dark-hued and bittersweet, with a firmness of purpose and pitch.
The elusive quality of ripeness, according to these devices, lies at a firmness of fewer than sixteen pounds per square inch, a sweetness of fourteen or more degrees on the Brix scale, and a starchiness that matches pictures four through six on a varietal-specific chart.
Fruit stored at 4°C for three weeks (E3) showed a significant decrease in firmness, reaching a value of 43.2 N. Fruit from the E4 stage reached a firmness value of 6.8 N, which is similar to normally softened fruit (Table 1, which also describes the degree of browning of the ).
And it may well be that the 5% dollop of cabernet did no more than add a little firmness of texture to the vivid, vibrant, but elegant Querciabella Chianti Classico 2011 (£21.99, Armit Wines).
CFT is thereby defined as the time necessary to attain a clot firmness of 20 mm.
The following parameters were recorded for the ROTEM® tests: clotting time [CT (s); time from the start of the test until a clot firmness of 2 mm is detected] and MCF (mm).
The following parameters were recorded for the ROTEM tests: clotting time (CT (seconds); time from the start of the test until a clot firmness of 2 mm is detected), amplitude 10 (mm), the clot amplitude 10 minutes after the beginning of clotting) and the maximum clot firmness (MCF (mm)).
