Search for dissertations about: "process substitution"

Showing result 1 - 5 of 116 swedish dissertations containing the words process substitution.

  1. 1. Experimental Vitreous Substitution

    University dissertation from Lund University, Faculty of Medicine

    Author : Henrik Barth; Lunds universitet.; Lund University.; Lunds universitet.; Lund University.; [2018]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Retinal Detachment; Vitreous Body : surgery; Retina cytology metabolism surgery; Retina: Function; Retina: Inflammation; Retinal Detachment; Vitreous Body : surgery; Vitreous substitute; Vitrectomy;

    Abstract : Blixtar. Svarta prickar, spindelben och dimmoln. Rörliga grumlingar framför ögat och liknade symptom drabbar varje dag många svenskar. Oftast är symptomen helt ofarliga men de kan också tyda på begynnande näthinneavlossning, vilket i värsta fall kan leda till blindhet. READ MORE

  2. 2. Xylan Reactions in Kraft Cooking Process and Product Considerations

    University dissertation from Stockholm : KTH

    Author : Sverker Danielsson; KTH.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Xylan; Kraft cooking; Paper strength; Sheet density; Methylglucuronic acid; Hexenuronic acid; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Cellulose and paper engineering; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Cellulosa- och pappersteknik;

    Abstract : Xylan is the main hemicellulose in birch, eucalyptus, and most other hardwood species. During kraft pulping a series of chemical reactions and physical processes involving xylan takes place. READ MORE

  3. 3. Advanced Gasification of Biomass/Waste for Substitution of Fossil Fuels in Steel Industry Heat Treatment Furnaces

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Duleeka Gunarathne; KTH.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biomass; Pretreatment; Gasification; Pressure drop; Steel industry; Fuel switch; Energy efficiency; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : With the current trend of CO2 mitigation in process industries, the primary goal of this thesis is to promote biomass as an energy and reduction agent source to substitute fossil sources in the steel industry. The criteria for this substitution are that the steel process retains the same function and the integrated energy efficiency is as high as possible. READ MORE

  4. 4. Synthesis and Characterization of New Inorganic Thermoelectric Materials

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Daniel Cederkrantz; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; thermal conductivity.; Ba8Ga16Ge30; Seebeck coefficient; nanoinclusions; Thermoelectricity; waste heat recovery; clathrates; thermal stability; electrical resistance; Mg2Si; substitution; semiconductors;

    Abstract : With thermoelectric materials it is possible to convert a difference in temperature into electrical energy. This can be utilized for a more efficient use of available energy, eg. by converting waste heat from a combustion process. READ MORE

  5. 5. Isolation and chemical modification of arabinoxylan and galactoglucomannan

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Linda Härdelin; [2018]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tg; Films; Material properties; Isolation; Etherification; Modification; PEGylation; Hemicellulose;

    Abstract : Today’s society is based on the use of fossil fuels, where oil is used as transportation fuel and as raw material in the petrochemical industry. Efforts are made to increase the use of bio-based materials, since oil is a non-renewable source and a greenhouse gas contributor. READ MORE