The phrase "a certain particle" is correct and usable in written English.
It can be used when referring to a specific particle that is not named or identified in detail, often in scientific or technical contexts.
Example: "In the experiment, we observed the behavior of a certain particle under varying conditions."
Alternatives: "a specific particle" or "one particular particle".
They propose that gravity becomes important at a certain particle density and a cell size of roughly 10 microns — the size limit of most animal cells.
The new test facility has many obvious advantages, such as the simpler structure without the agitating device, less noise in the test process, less power consumption, less number of particles to get a certain particle volume concentration, and the decrease of the experiment cost.
This phenomenon could be due to the fact that, after reaching a certain particle size, the GSH as stabilizer was able to withhold the nanoparticle's size effectively.
This phenomenon could be due to the fact that, after reaching a certain particle size, the stabilizer was not able to withhold the nanoparticle's size effectively, which resulted in its very large size.
Next year, Kirkbride (1979) proposed the following process when applying for another patent: the coal shall be crushed into a certain particle size and mixed with the saturated hydrocarbon solvent to form a thickened liquid after being dried.
Thus, in this proposed model, the SHC of the nanolayer (cp,layer) for a given NP size is first obtained from the experimental result of the SHC of the nanofluid at a certain particle concentration (i.e., cp,m): c p, m = c p, layer W layer + c p, np W np + c p, f W f − W layer W nf, (2).
Based on current understandings, we hypothesize that a maximum immune response occurs at a certain antigen adjuvant particle size.
Taking a certain inertial particle separator as the prototype and using the validated compute method, some performance is measured by numerical simulation on reducing the height of inner wall, changing the height of flow channel, changing inlet size and changing the inlet velocity of sand.
The drag coefficient is constant for a certain sphere particle in bulk fluid, but the presence of a solid surface increases the drag on a body, which decreases with a growing distance between the microswimmer and the surface [42].
They found that the amplitudes of certain particle collisions are encoded in the volume of a jewel-like geometric object, which they dubbed the amplituhedron.
There is a risk that certain particles might accumulate in tissues so there is a very important strategy linked to particle size here.
