Search for dissertations about: "membrane theory"

Showing result 1 - 5 of 66 swedish dissertations containing the words membrane theory.

  1. 1. The Quest for M-theory

    Author : Ulf Gran; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; supersymmetry; solitons; gauge symmetry; M-theory; string theory; duality; p-branes; D-branes; superspace; supergravity;

    Abstract : In ten dimensions, there exist five consistent string theories and in eleven dimensions there is a unique supergravity theory. When trying to find the fundamental theory of nature this is clearly an "embarrassment of riches". In the mid 90s, however, it was discovered that these theories are all related via a kind of transformation called duality. READ MORE

  2. 2. Modelling of a single layer graphene membrane

    Author : Kaveh Samadikhah; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Graphene membranes; Computational homogenization; Shell-membrane theory; Tersoff–Brenner potential.; Multiscale solution;

    Abstract : The present contribution deals with the modeling of thin graphene membranes. Such membranes have a significant electrical and physical properties used for nano or microdevices like resonators and Atomic Force/mass Measurements (AFM) [1]. The membrane is considered as a homogenized graphene monolayer on the macroscopic structural scale. READ MORE

  3. 3. Optical Methods for Tympanic Membrane Characterisation Towards Objective Otoscopy in Otitis Media

    University dissertation from Institutionen för medicinsk teknik

    Author : Mikael Sundberg; Tomas Strömberg; Ton van Leeuwen; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optical Methods; Spectroscopy; Surface Curvature; Monte Carlo; Tympanic Membrane; Otitis Media; TECHNOLOGY Other technology Medical engineering; TEKNIKVETENSKAP Övriga teknikvetenskaper Medicinsk teknik;

    Abstract : Otitis media, which is an upper respiratory tract infection that affect the middle ear, is the second most common disease in childhood, outnumbered in prevalence only by the common cold. Diagnosis of middle ear inflammation is often performed in the primary healthcare where the normal procedure involves anamnesis and physical examination of the tympanic membranes (TM) of the patient, usually be means of otoscopy. READ MORE

  4. 4. Solid-State Nanopores for Sensing From Theory to Applications

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Chenyu Wen; Shi-Li Zhang; Zhen Zhang; Ulrich F. Keyser; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; solid-state nanopore; ionic current; current blockage; effective transport length; noise; surface charge; translocation; biomolecule; electroosmotic flow; vortex; autogenic translocation; multiple nanopores; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

    Abstract : Nanopore based sensing technology has been widely studied for a broad range of applications including DNA sequencing, protein profiling, metabolite molecules, and ions detection. The nanopore technology offers an unprecedented technological solution to meeting the demands of precision medicine on rapid, in-field, and low-cost biomolecule analysis. READ MORE

  5. 5. Solar Assisted Pervaporation (SAP) : A process using membrane pouches and solar energy for the dehydration and preservation of fruit juices in rural and remote areas

    University dissertation from Department of Food Technology, Engineering and Nutrition, Lund University

    Author : Randi Phinney; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; membrane; pervaporation; fruit preservation; solar drying; heat and mass transfer; coupling effects;

    Abstract : Drying has been used for thousands of years to preserve foods. One of the first methods used was open air sun drying which exposes foods directly to solar radiation and ambient air. This method is still used today around the world but it remains underdeveloped on the small-scale for two main reasons. READ MORE