Search for dissertations about: "P. Kraft"

Showing result 1 - 5 of 93 swedish dissertations containing the words P. Kraft.

  1. 1. Crystallographic studies of gluconate kinase

    University dissertation from Stockholm : Karolinska Institutet, Department of Medical Biochemistry and Biophysics

    Author : Louise Kraft; Karolinska Institutet.; Karolinska Institutet.; [2001]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : The first steps of gluconate metabolism in Escherichia coli are the transport of gluconate into the cell by a gluconate transport system, followed by phosphorylation to gluconate-6- phosphate by gluconate kinase. There exist two such different pathways, Grill and GntIl, respectively. READ MORE

  2. 2. On the Interrelation Between Kraft Cooking Conditions and Pulp Composition

    University dissertation from Stockholm : KTH

    Author : Catrin Gustavsson; KTH.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Delignification; Kraft pulping; Residual phase lignin; Hydroxide; Hydrogen sulphide ion; Ionic strength; Temperature; Bleachability; Hexenuronic acid; Carbohydrates; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Cellulose and paper engineering; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Cellulosa- och pappersteknik;

    Abstract : In the early 1990’s, a lot of work was focused on extending the kraft cook to a low lignin content (low kappa number). The driving force was the need to further reduce the environmental impact of the bleaching, as less delignification work would be needed there. READ MORE

  3. 3. Improved Usage of Wood Raw Material through Modification of the Kraft Process

    University dissertation from Stockholm, Sweden : Kungliga Tekniska högskolan

    Author : Daniel Tavast; KTH.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; kraft process; impregnation; xylan; spruce; Chemical Engineering; Kemiteknik;

    Abstract :    The kraft process is a complex system with many variables, and though the process is fairly well understood, there is still much we do not know.    This thesis examines some aspects of the kraft process that could prove to be of interest for the pulp and paper industry, specifically, the impact of wood chip impregnation and of the chemical structure of xylan on spruce kraft pulp. READ MORE

  4. 4. Techno-economic analysis and optimization of electrochemical energy storage solutions

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Guido Lorenzi; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Energy Storage; Battery Energy Storage; Lithium-ion Batteries; Vanadium Flow Batteries; Power-to-Gas; Electrolysis; Biogas Upgrading; Armazenamento de Energia Elétrica; Armazenamento de Energia em Baterias; Baterias de Iões de Lítio; Baterias de Fluxo de Vanádio; Power-to-Gas; Eletrólise; Upgrading de Biogás; Elenergilagring; batterilagring; litiumjonbatterier; vanadinflödesbatterier; elkraft-till-gas; elektrolys; biogasuppgradering; Energiteknik; Energy Technology;

    Abstract : The need to integrate the rapidly growing share of variable renewable energy sources in the power sector requires solutions that are capable of mitigating the intermittent nature of these sources. They are expected to constitute the backbone of the electricity generation system in the coming years in order to reach ambitious goals in terms of energy security and reduction of environmental impact. READ MORE

  5. 5. Solar receiver development for gas-turbine based solar dish systems

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Lukas Aichmayer; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Concentrating solar power; volumetric solar receiver; development; experimental evaluation; validation; Koncentrerad solkraft; volumetrisk solmottagare; utveckling; experimentell utvärdering; validering; Energiteknik; Energy Technology;

    Abstract : Small-scale concentrating solar power plants such as micro gas-turbine based solar dish systems have the potential to harness solar energy in an effective way and supply electricity to customers in remote areas. In such systems, the solar receiver transfers the power of concentrated solar radiation to the working fluid of the power conversion cycle. READ MORE