Sökning: "neutron reflection"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden neutron reflection.

1. 1. Relating the Bulk and Interface Structure of Hyaluronan to Physical Properties of Future Biomaterials

   Författare :Ida Berts; Jöns Hilborn; Adrian R Rennie; Giovanna Fragneto; John W White; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; hyaluronan; structure; bulk; interface; small-angle neutron scattering; neutron reflection; hydrogel; grafting; nanoparticles; protein interactions;

   Sammanfattning : This dissertation describes a structural investigation of hyaluronan (HA) with neutron scattering techniques. HA is a natural biopolymer and one of the major components of the extracellular matrix, synovial fluid, and vitreous humor. LÄS MER

3. 2. Collective Electron Dynamics in Mesoscopic Systems

   Författare :Oleksandr Zazunov; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Andreev reflection; Josephson effect; qubit; composite fermions; Andreev levels; resonant tunneling; superconductivity; high-T c superconductors; quantum point contact; fractional quantum Hall effect;

   Sammanfattning : This work is devoted to a theoretical investigation of collective electron dynamics in low dimensional materials and mesoscopic structures. A common feature of these studies is the focus on the properties of the low energy dynamics of conduction electrons. One class of studied materials is the high-Tc superconductor Nd2CuO4 and related compounds. LÄS MER

4. 3. On the application of Monte Carlo methods to problems in neutron and gamma-ray transport theory

   Författare :Martin Leimdörfer; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The theoretical treatment of the transport of particles and radiationgives rise to problems of great mathematical complexity. Thestandard methods which are presently used to solve the transportproblems that appear in reactor, accelerator, space, and weaponsshielding as well as in medical radiology are often questionable. LÄS MER

5. 4. Role of lipoprotein structure and dynamics in disease development : from atherosclerosis to Covid-19

   Författare :Yubexi Y. Correa M.; Marité Cárdenas; Valeria Rondelli; Malmö universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Health and society; Hälsa och samhälle;

   Sammanfattning : Lipoproteins play a crucial role in lipid metabolism, serving as carriers for lipids such as cholesterol and triglycerides in the bloodstream. Atherosclerosis is a complex cardiovascular disease characterized by the accumulation of cholesterol-rich plaques in arterial walls, leading to narrowed and hardened arteries. LÄS MER

7. 5. Structural and Magnetic Properties of Fe/Co (001) and Fe/V (001) Superlattices

   Författare :Peter Blomqvist; Jens Birch; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Tunna filmer; kristallin struktur; magnetism; järn; kobolt; vanadin; Physics; Fysik; fysik; Physics;

   Sammanfattning : The structural and magnetic properties of Fe/Co (001) and Fe/V (001) superlattices have been investigated. The thin film structures were deposited on MgO (001) substrates using a four source ultra-high-vacuum based sputtering equipment. LÄS MER