Sökning: "Ola Johnsson"

Hittade 4 avhandlingar innehållade orden Ola Johnsson.

  1. 1. Extremum-Seeking Control of Industrial-Scale Fermentation Processes

    Författare :Ola Johnsson; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : 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. LÄS MER

  3. 2. Perturbation-based Control of Industrial Fed-batch Bioprocesses

    Författare :Ola Johnsson; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; perturbation-based control; process control; fed-batch control; industrial bioprocesses;

    Sammanfattning : 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. LÄS MER

  4. 3. Strindberg och skräcken : Skräckmotiv och identitetstematik i August Strindbergs författarskap

    Författare :Henrik Johnsson; Göran Rossholm; Ola Holmgren; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; August Strindberg; Doppelgänger; Edgar Allan Poe; E.T.A. Hoffmann; fantasy; ghost; homunculus; horror; identity; vampire; Literature; Litteraturvetenskap; litteraturvetenskap; History of Literature;

    Sammanfattning : The subject of this dissertation is the theme of identity in the works of August Strindberg and how this theme is explored through the use of motifs drawn from the literature of horror and fantasy as well as Swedish folklore. The theme deals with how the individual’s identity is shaped and what it consists of, and how it can be manipulated, stolen or lost through interaction with other people. LÄS MER

  5. 4. Long-term metabolic effects of a high birth weight

    Författare :Inger W Johnsson; Jan Gustafsson; Fredrik Ahlsson; Maria Lundgren; Ola Nilsson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Body composition; Cardiovascular risk factors; Gestational diabetes; Glucose tolerance; High birth weight; Insulin sensitivity; Large for gestational age; Obesity; Offspring macrosomia; Type 2 diabetes; Endocrinology and Diabetology; Endokrinologi och Diabetologi;

    Sammanfattning : The intrauterine environment influences foetal growth as well as future response to risk factors for disease. This occurs partly through epigenetic mechanisms. Thus, birth weight is a possible risk marker of adult disease. LÄS MER