The phrase "a relatively weak influence" is correct and usable in written English.
It can be used when discussing the impact or effect of something that is not very strong compared to other influences.
Example: "The study found that social media has a relatively weak influence on the purchasing decisions of consumers."
Alternatives: "a somewhat minor impact" or "a comparatively low effect".
Soil C, N, and P showed positive correlations (R2 = 0.07 to 0.17) with aspen regeneration vigor, while soil texture had a relatively weak influence on sucker regeneration.
Window-to-wall ratios and the overhang dimension were among the most influential parameters for both AEL and AGI, whereas building orientation and aspect ratio, as well as visible transmittance, were found to have a relatively weak influence.
In the experiments high values of the mass transfer coefficients, kLa, of the order of 0.1 s-1 have been obtained and a relatively weak influence of the liquid viscosity on the values of the mass transfer coefficients has been observed.
Qualitatively speaking, cell alignment revealed a relatively weak influence of the positioning density of the CNF grid patterns on cell shape and ordering.
In spite of this, the results obtained showed that, with the exception of the p-CH3 substituent, introduction of different substituents in the ring of benzenesulfonic acid had a relatively weak influence on KI and IC50 values for ETP reduction (Table S2).
Following the work of McKeown[ 21], it is widely appreciated that medical care is a relatively weak influence on population health.
Compared with these factors, the volume ratio of Cu III) to NaOH in the initiator solution in the considered situations had a relatively weaker influence on the cryogel microstructures and protein binding capacity.
Compared to the role of N, S shows relatively weak influence.
Experiments carried out in HO-1 overexpressing mice seem to confirm lack or relatively weak influence of HO-1 on the cytokine production in response to wounding, as level of cytokines at the wound site was more dependent on wounding phase that on HO-1 activity, while production of inflammatory cytokines in transgenic keratinocytes was similar to control cells (data not shown).
Similarly, the starting value of this probability (which we set to be just under 1) also has relatively weak influence on the duration of local search.
Correlations with skewness (− 0.57), kurtosis (− 0.58), and mud log-ratio (0.65) have relatively weak influences on this value (Table 1).
