Is there any method (optimization) for time delay change between the time of the sample collection and when it is assessed/examined?
A new method to reduce the number of time delays in a network
Time delays may cause dramatic changes to the dynamics of interacting oscillators. Coupled networks of interacting dynamical systems can have unexpected behaviours when the signal between the vertices are time delayed. It has been shown for a very general class of systems that the time delays can be rearranged as long as the total time delay over the constitutive loops of the network is conserved. This fact allows to reduce the number of time delays of the problem without loss of information. There is a theoretical lower bound for this number that can be numerically improved if the time delays are commensurable. Here we propose a formulation of the problem and a numerical method to even further reduce the number of time delays in a network. Source: Scientific Reports | 7: 2744 | DOI:10.1038/s41598-017-02978-5
Delay time may (or not) be of first order. The magnitude of the error that results from identifying the observed/measured variable (e.g. concentration; affected by first order delay) with the corresponding actual (real) concentration, can be estimated accordingly eq. 2.58 of the following reference (p. 25):
Thesis Controlo do Oxigénio Dissolvido em Fermentadores para Minimi...
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