The phrase "a weak increase in" is correct and usable in written English.
It can be used to describe a slight or minimal rise in a particular measurement or value.
Example: "The report indicated a weak increase in sales over the last quarter, suggesting that the market is still recovering."
Alternatives: "a slight increase in" or "a minimal rise in".
As the number of ingredients increases, there is a weak increase in the tastiness of a sandwich.
Only PFNA led to a weak increase in DNA damage at cytotoxic concentrations.
On the other hand, a weak increase in the influence of the user social status is beneficial for the consensus.
There is also a weak increase in P-wave anisotropy laterally away from the short-axis, and vertically towards the surface.
There is a compromise between the increase in local contrast and rendition of the image: a strong increase in local contrast leads to artefacts, whereas a weak increase in local contrast does not provide the expected improvement of detail visibility.
ETG in November with the lowest ET0 of the unfrozen period is found to be 1.0 mm/d, which is slightly smaller than qin, thus results in a weak increase in water table.
However, there appears to be an weak increase in brain blood vessel diameter (black arrows), particularly after CFA.
We hypothesized that those higher in dysphoria would demonstrate a greater increase in negative thinking in response to negative mood, and a weaker increase in positive cognitions in response to positive mood.
Partridges exposed to diquat showed a weaker increase in carotenoid levels than control birds (0.59±0.46 and 1.81±0.47 µg ml−1, respectively).
Hypertensive patients had a weaker increase in peak strain during physical exercise which was detected slightly more distinctively with TDI than with STE.
While an enforced large increase in NSC proliferation rate could result in tumor initiation [ 15, 17], a weaker increase in proliferation rate could lead to premature stem cell exhaustion [ 12, 13].
