Search for dissertations about: "2d"

Showing result 1 - 5 of 744 swedish dissertations containing the word 2d.

  1. 1. Computational Studies of 2D Materials : Application to Energy Storage and Electron Transport in Nanoscale Devices

    Author : Vivekanand Shukla; Rajeev Ahuja; Anton Grigoriev; Sudip Chakraborty; Kristian Sommer Thygesen; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Density functional theory; Non-equilibrium Green s function; 2D materials; Energy storage; Electron transport;

    Abstract : The field of two-dimensional (2D) layered materials provides a new platform for studying diverse physical phenomena that are scientifically interesting and relevant for technological applications. Novel applications in electronics and energy storage harness the unique electronic, optical, and mechanical properties of 2D materials for design of crucial components. READ MORE

  2. 2. Visualizing Dynamics –The Perception of Spatiotemporal Data in 2D and 3D

    Author : Andreas Kjellin; Mats Lind; Else Nygren; Kjell Ohlsson; Uppsala universitet; []
    Keywords : Människa-dator-interaktion; Human-Computer Interaction; Information Visualization; Usability; 2D; 3D; Cue Probability Learning; Space-time Cub; Människa-dator-interaktion;

    Abstract : In many command and control situations the understanding of dynamic events is crucial. With today’s development of hard- and software architecture, we have the possibility to visualize data in two-dimensional (2D) and three-dimensional (3D) images. READ MORE

  3. 3. Influence of defects and impurities on the properties of 2D materials

    Author : Soumyajyoti Haldar; Biplab Sanyal; Olle Eriksson; Torbjörn Björkman; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; 2D Materials; Defects on 2D materials; Impurities on 2D materials; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Abstract : Graphene, the thinnest material with a stable 2D structure, is a potential alternative for silicon-based electronics. However, zero band gap of graphene causes a poor on-off ratio of current thus making it unsuitable for logic operations. This problem prompted scientists to find other suitable 2D materials. READ MORE

  4. 4. Multivariate Analysis of 2D-NMR Spectroscopy : Applications in wood science and metabolomics

    Author : Tommy Öman; Mattias Hedenström; Bjart Frode Lutnaes; Umeå universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; 2D NMR; HSQC; cellulose; ligning; STOCSY; HSQC-STOCSY; crystallinity; biologisk kemi; biological chemistry;

    Abstract : Wood is our most important renewable resource. We need better quality and quantity both according to the wood itself and the processes that are using wood as a raw material. Hence, the understanding of the chemical composition of the wood is of high importance. READ MORE

  5. 5. Seismics, 2D and 3D Inversion of Magnetotellurics : Jigsaw pieces in understanding the Skellefte Ore District

    Author : María de los Ángeles García Juanatey; Ari Tryggavson; Ute Weckmann; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Magnetotellurics; 2D inversion; 3D inversion; hard rock seismics; mineral exploration; integrated geophysics; 4D modeling; Geofysik med inriktning mot fasta jordens fysik; Geophysics with specialization in Solid Earth Physics;

    Abstract : The Skellefte District (SD) is one of the richest metallogenic mining areas in Sweden. The main deposits consist of volcanic-hosted massive sulphides (VHMS) rich in zinc, copper, lead, gold and silver, that have been explored and mined for more than a century. READ MORE