The phrase "decay in performance" is correct and can be used in written English.
It typically refers to a decline or deterioration in someone's or something's ability to perform a task or achieve a certain level of performance. Example: The company's profits have been declining steadily due to a decay in performance from its employees.
In terms of packet delivery ratio, Figure 13(a) shows that HOP introduces a small decay in performance.
This explains the considerable decay in performance towards the ORR measured by linear sweep voltammetry in previously shown Fig. 8.
Both samples present a significant decay in performance, determined by the reduction of the area of the peak at ca. 0.7 V vs. RHE.
Monitoring of pre-heat trains in oil refineries is a crucial activity to assess the gradual decay in performance of heat transfer equipment due to fouling.
The decay in performance for the Pd/Ti0.8Ta0.2O2 catalyst is remarkable, losing around 54 mV in terms of onset potential and a 25% in terms of limiting current density, as can be ascertained from Fig. 8.
However, Pd/C E-TEK, even though possessing a carbon support, widely known for its tendency to corrosion, suffers a lower decay in performance of around 16 mV in terms of onset potential and around 16% in terms of limiting current density.
The secondary purpose of our investigation was to determine if HMB-FA was able to prevent the typical decay seen in performance following an overreaching cycle performed in the 9th and 10th weeks of the study.
In addition, the low energy growth rate from 2005 to 2011 may be attributed to the decay in the performance of the industrial sector.
With greater redundancy, investment per individual control structure declines, causing a decay in the performance of each individual dimension of control.
From Tables 7 and 8, it is clear that each image with a particular noise type having an increase in the noise level leads to a decay in the performance value.
In addition, these supercapacitors exhibited high rate performance with capacitance retention of 85% by increasing the current density from 1.0 to 20.0 A g−1, and excellent mechanical flexibility with only 4.9% decay in the performance when bent 180°.
