The phrase "a very small time" is correct and usable in written English.
It can be used to refer to a brief duration or a short period of time in various contexts.
Example: "I only need a very small time to finish this task before the deadline."
Alternatives: "a brief moment" or "a short while".
In order to avoid numerical instability, we must take a very small time step.
When users operate in high mobility, such as in Fig. 6, the prediction remains valid only for a very small time duration.
However, the state equation is still discretized in a very small time step to approximate the effect of continuous dynamics in [41].
In regards to the accuracy and stability of a complex dynamic system, a very fine mesh and a very small time step would be ideal.
Meanwhile, it is also numerically illustrated that the discontinuity problem can be overcome by performing a very small time step immediately upon termination of the applied impulse.
All computations were done under isobaric conditions, and, to capture the influence of all the reactions involved in the mechanism, a very small time step was used.
The main reason is that, contrary to regular systems like, for example, the Solar System, resonant 3-body interactions often include very close encounters, which need a very small time-step size to be resolved accurately.
Due to the white noise-like pseudo-noise sequence of the spreading waveform, the AF of p t) has a property of superb time-frequency concentration, which means that the energy of p t) is concentrated in a very small time-frequency region −T c <τ
Accurate analysis of the viral genome-wide sequence may help us infer the evolutionary development over a very small time-scale, (since the beginning of the pandemic A(H1N1)).
Although lithium levels were typically measured only once per supplier, we observed a very small time-dependent fluctuation in concentrations: the correlation coefficient between the lithium levels and those re-quantified after one year in the same places was 0.998.
