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  • 1
    Electronic Resource
    Electronic Resource
    On-line estimation and adaptive control of bioreactors
    Amsterdam : Elsevier
    Analytica Chimica Acta 243 (1991), S. 324 
    Details
    ISSN: 0003-2670
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0003-2670(00)82585-4
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    On-line estimation and adaptive control of bioreactors - Elsevier, Amsterdam, 1990 (ISBN 0-444-88430-0). xiv + 379 pp. Price US 146.25/Dfl. 285.00
    Amsterdam : Elsevier
    Analytica Chimica Acta 243 (1991), S. 324 
    Details
    ISSN: 0003-2670
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0003-2670(00)82585-4
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Modelling of continuous microbial cultivation taking into account the memory effects (2000)
    Springer
    Bioprocess engineering 22 (2000), S. 517-527 
    Details
    ISSN: 0178-515X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract The problem of chemostat dynamics modelling for the purpose of control is considered. The “memory” of the culture is explicitly taken into account. Two possibilities for improving the quality of the proposed modelling approaches are discussed. A general model that accounts for the culture `memory' by means of different `memory' functions in the expressions of the specific growth rate and of the specific consumption rate and a polynomial function of the substrate concentration for the yield factor is proposed. The case where the maintenance energy is taken into account is also discussed. Two modifications of the general model (μ-type and S-type) are presented. A zero-order `memory' function and a δ-function with delay are applied in order to describe the `memory' effects. Continuous growth of the strain Saccharomyces cerevisiae on a glucose limited medium is considered as a case study. Detailed investigations of the variety of models, derived from the general model by applying different `memory' functions and different assumptions are carried out. The results are compared with those previously reported for the same process. It is shown that a significant improvement in predicting the substrate dynamics (not accompanied by any decrease in the quality of the model with respect to the biomass concentration) could be achieved, involving a first- or second-order polynomial function for the yield factor. It is also shown that the quality of the model mainly depends on the way that `memory' function is incorporated. The detailed investigations give priority to the μ-type models. In this case past values of both biomass and substrate variables are considered. The time delay models with pure (constant) delay and those which account for the culture `memory' by zero-order `memory' function (adaptability parameter) are compared with respect to their utilization for the purpose of model-based control.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004499900095
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Adaptive control of anaerobic digestion processes - a pilot-scale application (1988)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 31 (1988), S. 287-294 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A simple adaptive control algorithm, for which theoretical stability and convergence properties had been previously demonstrated, has been successfully implemented on a biomethanation pilot reactor. The methane digester, operated in the CSTR mode was submitted to a shock load, and successfully computer controlled during the subsequent transitory state.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260310402
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    Paper (German National Licenses)
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