Search for dissertations about: "multilayer barriers"

Showing result 1 - 5 of 6 swedish dissertations containing the words multilayer barriers.

  2. 1. Bio-based barriers from wood hydrolysates : A pilot-scale approach

    Author : Soheil Saadatmand; Ulrica Edlund; Youssef Habibi; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood hydrolysate; biorefinery; oxygen permeability; multilayer barriers; food packaging.; vedhydrolysat; syrgaspermeabilitet; barriärskikt; livsmedelsförpackning;

    Abstract : Wood hydrolysates (WHs) are liquids extracted from the hydrothermal treatment of wood. They exist as the byproduct of forestry industries such as the dissolving pulp and fiberboard industries. WHs are hemicellulose-based with a large share of lignin in the chemical composition. READ MORE

  4. 2. Tailoring Properties of Materials at the Nanoscale

    Author : Hossein Raanaei; Björgvin Hjörvarsson; Igor A. Abrikosov; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Multilayers; magnetic anysotropy; amorphous materials; Magnetism; Magnetism; Materiefysik; Physics of Matter;

    Abstract : The knowledge of growth and characterizing techniques is essential for the preparation of high quality thin films and multilayers. Here, structural properties have been investigated by X-ray reflectivity, X-ray diffraction, and transmission electron microscopy while the composition was determined by Rutherford backscattering spectrometry. READ MORE

  5. 3. A Theoretical Perspective on the Chemical Bonding and Structure of Transition Metal Carbides and Multilayers

    Author : Mikael Råsander; Olle Eriksson; Biplab Sanyal; Risto Nieminen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Electronic structure; transition metal carbides; density functional theory; disorder; multilayers; chemical bonding; materials science; Condensed matter physics; Kondenserade materiens fysik; Materialvetenskap; Materials Science;

    Abstract : The present thesis deals with a theoretical description of issues regarding chemical bonding, structure and stability of transition metal carbides and multilayered structures. First principles density functional theory has been used extensively to investigate the properties of alloyed solutions of transition metal carbides. READ MORE

  6. 4. Image dipoles and polarons in organic semiconductors

    Author : Yongzhen Chen; Mats Fahlman; Xianjie Liu; Yiqiang Zhan; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic electronics; Interface dipole; Polaron; Conjugated polymer; Photoelectron spectroscopy; N-type doping; Electron transport material;

    Abstract : The rapid development of organic electronics depends on the synthesis of new π-conjugated molecules/polymers and the exploration of fundamental physics. However, most of the efforts have been concentrated on the former, leading to a lack of thorough understanding of many important concepts, which will become the ultimate limiting factor for overall performance and applications. READ MORE

  7. 5. Intricacy and Stability of Graphene Spintronic Devices

    Author : Daria Belotcerkovtceva; M. Venkata Kamalakar; Samuel Lara Avila; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Graphene, the first experimentally isolated atomically thin crystal has displayed numerous superlative properties for quantum and spin-based electronics, as evidenced by research results of more than a decade. The scalable form of graphene, produced by the chemical vapor deposition (CVD) method has been increasingly attracting scientific and technological interest, as outstanding properties are combined with large scalability and high quality. READ MORE