The design of chemical sensors has evolved from the construction of extremely selective sensors capable of detecting very small quantities of a specific molecule to what can be called chemically broad-band sensors with overlapping sensitivities to different chemical groups.
The arbitrary outputs could, similarly be any number of scalable things including heart bypass procedures, life expectancy, decreasing levels of depression, or quantities of a specific good.
By arbitrary, we mean that the inputs could be any number of scalable things including person-time, money, effort, or quantities of a specific good such as an antibiotic.
In most cases, you can save money per cleaning product unit when you buy mass quantities of a specific product from stores such as Costco or Sam's Club.
Secondly, Lamb waves are multi-modal, which means that interferences between individual modes complicate the allocation of energy and displacement related quantities to a specific mode of excitation.
