The phrase "a preliminary calculation" is correct and usable in written English.
It can be used when referring to an initial estimate or assessment that is subject to further refinement or verification.
Example: "Before we finalize the budget, we need to conduct a preliminary calculation of the expected costs."
Alternatives: "an initial estimate" or "a rough calculation".
After a preliminary calculation Monday that the Super Bowl on NBC attracted average viewership of 95.4 million, the second-most ever, Nielsen Media Research on Tuesday changed the estimate of those watching Pittsburgh beat Arizona to 98.7 million, beating last year's previous high of 97.5 million on Fox.
A preliminary calculation of the energy resource from decommissioned wells in Poland and a simulation of the heat exchange achievable from depleted oil wells are presented in this paper.
A preliminary calculation is carried out based on the response mechanism of cement and electrolytic aluminum.
The time interval Δt in the simulations is automatically calculated as Eq. (16), where Δt c, determined based on the following CFL condition of Eq. (15), is multiplied by a safety factor α. In this study, α is set as 0.2 based on a preliminary calculation.
During the seventeenth century, Tycho Brahe measured the diurnal parallax of Mars that Johannes Kepler used to make a preliminary calculation of the relative distance to the planet.
A preliminary calculation has been pursued to examine the performance of the present substitution models in the ML inference of a phylogenetic tree.
The theoretical approach gives to the user an appropriate tool for preliminary calculation, design and diagnosis in commissioning processes in order to determine the main operating conditions of the system in cooling mode.
A preliminary neutronics calculation based on ST transmutation blanket shows that the proposed system has a high transmutation capability for MA wastes.
Besides, as KTX vacuum vessel will take the method of natural cooling for heat dissipation during plasma discharge (0.5 1.0 MA), a preliminary thermal calculation was implemented in normal condition to decide suitable time parameters such as duration and interval.
A preliminary power calculation utilized quality of the bowel preparation as the primary endpoint for this study, since an improvement in tolerability would not be considered as important as a change in efficacy of the preparation.
EN 14531 regulation [2] provides indications concerning preliminary calculation of braking performance, giving a general workflow that can be adapted to different vehicle categories: Freight wagons, Mass transit, Passenger coaches, Locomotives, and High-speed trains.
