Search for dissertations about: "Kemisk analys"

Showing result 1 - 5 of 72 swedish dissertations containing the words Kemisk analys.

  2. 1. Gasification of biochars: Evolution of pore structure, effects of alkalis and alkali release

    Author : Saiman Ding; Klas Engvall; Efthymios Kantarelis; Jukka Konttinen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gasification; alkali release; kinetic modelling; char reactivity; pore structure; alkalis effects; förgasning; frigörande av alkalier; kinetisk modellering; kolreaktivitet; porstruktur; alkalieffekter; Chemical Engineering; Kemiteknik;

    Abstract : Renewable energy sources are indispensable to meet the rising demand of energy usage  while  reducing  the  negative  environmental  impact  of utilising fossil  fuels. Gasification  is  an  efficient  technology  to  convert  biogenic waste  into  valuable gaseous products. READ MORE

  4. 2. Chemometric analysis of first order chemical data

    Author : Ralf J. O. Torgrip; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Kemisk analys;

    Abstract : .... READ MORE

  5. 3. Structure and Dynamics of Hydrated Biopolymers

    Author : Poornima Ramamohan; Jakob Wohlert; Istvan Furo; Fritjof Nilsson; KTH; []
    Keywords : Hydrated Polysaccharides; Molecular Dynamics Simulations; Structure-Function Properties; Convergence of Equilibrium Timescales; Chemical Heterogeneity; Hydrerade polysackarider; molekylära dynamiksimuleringar; struktur- funktionsegenskaper; konvergens av jämviktstidskalor; kemisk heterogenitet; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : Hydrated polysaccharide systems primarily using xylans along with mutans and alternans were studied using long atomistic simulations over a few microseconds to analyse structure-function relationships and nanoscale interactions with moisture. The influence of various structural and chemical factors such as alignment, nature of glycosidic linkage, effect of moisture / chemical substitutions was explored with a focus on structure-dynamics correlations to aid in the effective functionalisation of biomaterials for the development of a green, circular bioeconomy. READ MORE

  6. 4. Intrinsically Proton-Conducting Benzimidazole Units Tethered to Different Polymer Chain Architectures

    Author : Christian Persson; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polymerteknik; biopolymers; Kemiteknik och kemisk teknologi; Polymer technology; Chemical technology and engineering; Materiallära; materialteknik; Material technology; Makromolekylär kemi; Macromolecular chemistry; proton-exchange membrane fuel cell; structure diffusion; thiol-ene reaction; segmental mobility; high temperature; benzimidazole; block copolymers; polymer electrolyte; anhydrous proton conductivity;

    Abstract : Proton transport is a fundamental process that can be found in many systems in nature, as well as in technical devices, such as fuel cells, electrochromic devices and various types of sensors. Fuel cell technology is considered as environmentally friendly because fuel cells are not limited by the Carnot cycle, and efficiently converts chemical energy into electrical energy which can be used for powering cars, laptops, buildings etc. READ MORE

  7. 5. Molecularly Imprinted Matrices for Electrochromatography

    Author : Leif Schweitz; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemical technology and engineering; capillary electrophoresis; enantiomer; film coating; microparticle; continuous bed; monolith; molecular imprinting; capillary electrochromatography; Kemiteknik och kemisk teknologi; Analytical chemistry; Analytisk kemi;

    Abstract : This thesis deals with the combination of electrochromatography and molecular imprinting technology. Electrochromatography is characterised by high separation efficiency, simple instrumentation, and minute consumption of sample. READ MORE