The phrase "a direct estimate of" is correct and usable in written English.
It can be used when referring to a precise calculation or assessment of a particular value or quantity.
Example: "The report provides a direct estimate of the project's total costs, allowing for better budget planning."
Alternatives: "an accurate assessment of" or "a precise calculation of".
The proposed fault estimation method provides a direct estimate of the size and severity of the fault, which can be important in many civil engineering applications.
Arstila, T.P. et al. A direct estimate of the human αβ T cell receptor diversity.
A genetic method for dating ancient genomes provides a direct estimate of human generation interval in the last 45,000 years.
Although Sedna is the largest object to be found in the solar system since Pluto in 1930, the Hubble photographs also could not make out enough detail to provide a direct estimate of the size.
The first variable provides classification into rough vegetation types while the second variable yields a direct estimate of the intensity of change that is related to flood dynamics.
A direct estimate of crop water use by subsurface measurements of soil water content has been limited by the high cost of reliable soil moisture sensors.
A direct estimate of calcium concentration in cell tissues within this range is possible with a novel calcium-selective reagent 15C5-774.
Here we present a direct estimate of this surfactant effect on CO2 exchange at the ocean basin scale, with derived relationships between its transfer velocity determined experimentally and total surfactant activity for Atlantic Ocean surface seawaters.
This approach allows estimating the reduction in the vertical (axial) strength and moment strength of the chimney both during a fire and post-fire, and gives a direct estimate of the reduction in the safety factors of the concrete chimney.
The first approach, based on direct pressure fluctuation measurements combined with detailed flow measurements in the proximity of the noise source, provides a direct estimate of the flow phenomena at the origin of sound generation and emission.
A closed-form theoretical expression is developed that provides a direct estimate of the financial advantage to be obtained by using outside financing rather than internal (enterprise) funds to build a chemical plant.
