The phrase "a decrease of a factor" is correct and usable in written English.
It can be used when discussing a reduction in quantity or intensity, often in scientific or mathematical contexts.
Example: "The study showed a decrease of a factor of two in the population of the species over the last decade."
Alternatives: "a reduction by a factor" or "a decline of a factor".
Secondly, the component of the momentum flux normal to the contact surface is given by a further decrease of a factor of f (see Yun et al, 2010).
For example, when the score of a first item shows an increase by a multiplication factor of 2 and a second item shows a decrease by a factor of 2 (multiplication factor 0.5), the mean of the values 2 and 0.5 equals 1.25.
A decrease of particle shape factor will improve the particle acceleration process.
However we noted a decrease of two factors, CPE and PECAM1 that interact with THBS1-CD47 axis.
The minimal interaction time for generating dense coatings is approximately 7 s which represents a decrease by a factor of > 100 in comparison to oven processing.
Compaction to 1.5 % strain reduced permeability from 6.2 × 10−12 to 2.6 × 10−12 m (a decrease by a factor of about two), and compaction to 4.5%% strain reduced permeability from 3.3 × 10−12 to 3.1 × 10−13 m (a decrease by about an order of magnitude).
For example, after adding 3 mutations to the 34 nt Sequence #2 and initiating 30 trials of random mutagenesis, the stem was found disrupted (with mispairs) in >90% of trials, and all 30 trials showed a resultant decrease (towards side) in delta G, and in some cases there was a decrease by a factor of 10 in the delta G value.
The administration of metoclopramide resulted in an average increase of the index by a factor of 1.5, whereas the application of scopolamine led to a decrease of the index by a factor of 3.0 [ 22].
Information on the transport of chlorinated solvents in groundwater showed a decrease of contaminant flux by a factor of 4.4 downstream of the confined area.
The twofold decrease of Na+ current in CIP patients is in line with a nerve excitability study of patients with puffer fish TTX [Na+ channel blocker] intoxication [17] where a decrease of Na+ currents by a factor of two accounted for reduced superexcitability, sub-excitability, and TE and increased SDtc.
