Search for dissertations about: "growth control"

Showing result 1 - 5 of 1016 swedish dissertations containing the words growth control.

  1. 1. Perturbation-based Control of Industrial Fed-batch Bioprocesses

    University dissertation from Department of Automatic Control, Lund Institute of Technology, Lund University

    Author : Ola Johnsson; Lunds universitet.; Lund University.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; perturbation-based control; process control; fed-batch control; industrial bioprocesses;

    Abstract : The topic of this thesis is bioprocess control, more specifically control of industrial-scale microbial fed-batch bioprocesses. Its focus is therefore on methods which are easy to implement in an industrial setting, which gives certain limitations on sensors, actuators and control systems. READ MORE

  2. 2. Probing Control of Glucose Feeding in Escherichia coli Cultivations

    University dissertation from Department of Automatic Control, Lund Institute of Technology (LTH)

    Author : Mats Åkesson; Lunds universitet.; Lund University.; [1999]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automatiska system; control engineering; robotics; Automation; dissolved oxygen; acetate; glucose feeding; robotteknik; Escherichia coli; Process control; fed-batch cultivation; reglerteknik; Biotechnology; Bioteknik;

    Abstract : Production of many proteins can today be made using genetically modified organisms. One of the most frequently used host organisms is the bacterium Escherichia coli. A difficulty encountered in cultivations of E. coli is the accumulation of the metabolic by-product acetate which inhibits cell growth and production of a desired protein. READ MORE

  3. 3. Extremum-seeking Control of Industrial-scale Fermentation Processes

    University dissertation from Department of Automatic Control, Lund Institute of Technology, Lund University

    Author : Ola Johnsson; Lunds universitet.; Lund University.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The work presented here is based on two papers, both pertaining to perturbation-based control strategies in industrial fed-batch fermentation processes. The first paper describes a new control strategy for avoiding overflow metabolism in the exponential growth phase of a fermentation, based on analysis of the frequency spectrum of the dissolved oxygen measurement following a periodic perturbation in the feed rate. READ MORE

  4. 4. Structure-Exploiting Numerical Algorithms for Optimal Control

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Isak Nielsen; Linköpings universitet.; Linköpings universitet.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Numerical Optimal Control; Model Predictive Control; Riccati Recursion; Parallel Algorithms; Low-Rank Modifications; Parametric Programming; Optimization; Explicit MPC; Moving Horizon Estimation; Partial Condensing;

    Abstract : Numerical algorithms for efficiently solving optimal control problems are important for commonly used advanced control strategies, such as model predictive control (MPC), but can also be useful for advanced estimation techniques, such as moving horizon estimation (MHE). In MPC, the control input is computed by solving a constrained finite-time optimal control (CFTOC) problem on-line, and in MHE the estimated states are obtained by solving an optimization problem that often can be formulated as a CFTOC problem. READ MORE

  5. 5. Growth intentions and communicative practices : Strategic entrepreneurship in business development

    University dissertation from Lund : Lund Business Press

    Author : Pia Ulvenblad; Högskolan i Halmstad.; Lunds universitet.; Lund University.; [2009]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SOCIAL SCIENCES Business and economics Business studies; SAMHÄLLSVETENSKAP Ekonomi Företagsekonomi; Strategic entrepreneurship; communication; growth intention; communicative practice; communication strategy; strategic entrepreneurship; Growth;

    Abstract : Tillväxtintentioner och kommunikativ praktik Strategiskt entreprenörskap vid företagsutveckling Denna avhandling fokuserar på entreprenörers “will and skill”, d.v.s. viljan och den kunskap och färdighet som entreprenören har vid start och utveckling av ett företag. READ MORE