"declining behavior" is a valid phrase in written English.
You can use this phrase to describe a pattern of behavior that is getting worse over time. For example, "John's declining behavior has become a source of tension in the family."
Dementia requires a "constellation" of erratic and noticeably declining behaviors.
Moreover, the directions of correlations were both positive and negative, suggesting no overall trend connecting intensity of exposure with declining risk behavior.
The effects of operating conditions were found to have a significant effect on the flux decline behavior and onset of gel layer formation.
During ultrafiltration enzyme pre-treated apple juice, the flux decline behavior is modeled using Hermia's approach for constant pressure dead-end filtration laws.
Experimental results show that operating conditions have significant effect on the onset of cake formation as well as on the flux decline behavior.
In the present study, an unsteady state model considering sequential occurrence of complete pore blocking and gel layer formation was proposed for explaining flux decline behavior during rhamnolipid based MEUF for simultaneous removal of Cd+2 and p-cresol from aqueous solution under batch concentration mode.
Ilk (2010), after analyzing production (rate) data from shale gas wells, developed a power-law model and a method of applying the model that arbitrarily switched from the power-law decline behavior to an exponential decline behavior.
The production data were carefully analyzed to identify the flow regimes and understand the overall decline behavior.
Although the study of Arps (1970) is completely empirical, its simplicity and the fact that it requires no knowledge of reservoir or well parameters make its use widespread in the upstream petroleum industry, particularly for production prediction and estimating reserves from production decline behavior.
