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Sensitivity analysis (SA) is an effective tool for studying the crop model; it is an important link in model localization, and plays an important role in correction and application of crop model. In this study, the field experiment was conducted during the 2013/2014 growing seasons of winter wheat, and the EFAST GSA method was used to examine the above ground dry biomass and grain yield output sensitivity...
In this paper the well-known problem of optimal input design is considered. The problem is formulated as follows: given a dynamic non-linear model structure which is assumed to be affine in the input, and a specific parameter of interest θk, find a feedback law that maximizes the sensitivity of the model output to the parameter. Analytical solutions to this specific problem for a general single state...
The paper presents a method to derive an optimal parametric sensitivity controller for optimal estimation of a set of parameters in an experiment. The method is demonstrated for a fed batch bio-reactor case study for optimal estimation of the saturation constant Ks and, albeit intuitively, the parameter combination μmaxX/Y where μmax is the maximum growth rate [g/min], Y is the yield coefficient [g/g],...
This paper deals with the design of a predictive control law for microalgae culture process to regulate the biomass concentration at a chosen setpoint. However, the performances of the Nonlinear Model Predictive Controller usually decrease when the true plant evolution deviates significantly from that predicted by the model. Thus, a robust criterion under model's parameters uncertainties is considered,...
This study deals with mathematical modeling for predicting Chlamydomonas reinhardtii growth under light attenuation and sulfur deprived conditions leading to hydrogen production in photobioreactor. The strong interactions between biological and physical phenomena require complex mathematical expressions with important number of parameters that have to be identified on the available experimental data...
In preparation of the satellite mission CoReH2O, one of the three missions selected for scientific and technical feasibility studies within the Earth Explorer Programme of the European Space Agency, experimental and theoretical studies started in order to investigate backscatter properties of snow covered terrain and improve the methods for retrieval of snow physical properties from SAR data. The...
The identifiability and estimability properties of dynamical systems have been extensively studied in the literature. However, such approaches often focus on the sensitivity of system trajectories to perturbations in parameter values about some nominal parameter value. Relying on parameter sensitivity to assess parameter estimability can be misleading because the neighbourhood over which the sensitivity...
The reduction machinism and kinetics characteristic of the reaction of carbon oxide (CO) and Nnitrous oxide (N2O), which contained the influence of reaction time on the reactants and products, were studied in the paper. The radical reaction of CO and N2O was assumped in a ideal reactor with a high temperature and a constant pressure, and was analyzed with chemical reaction kinetics theory. The result...
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