Sökning: "Salt crystals"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Salt crystals.

  1. 1. Experimental assessment of properties for a non-aqueous and precipitating alkanolamine absorption system

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Erik Robertsson; [2022]
    Nyckelord :AMP; DMSO; CCS; BE-CCS; Viscosity; Density; Freezing Temperature; Chemical Engineering; Technology and Engineering;

    Sammanfattning : With increasing atmospheric carbon dioxide (CO2) concentrations, energy efficient carbon capture and storage (CCS) technologies could prove important to enable reductions in the global CO2 emissions. The aim was to investigate a novel, non-aqueous, and precipitating chemical absorption system of dimethyl sulfoxide (DMSO) and 2-amino-2-methyl-1-propanol (AMP), which forms solid carbamate salt crystals with CO2. LÄS MER

  3. 2. Optical characterisation of AAO/CsPbBr3 perovskite nanocomposites

    Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Klára Nováková; [2021]
    Nyckelord :perovskite; scintillator; optoelectronics; semiconductor; X-ray detection; Physics and Astronomy;

    Sammanfattning : Direct bandgap metal lead halide perovskites offer promising optoelectronic properties desirable in a wide range of applications including photodetection. However, the incomplete and poor understanding of the photophysical processes taking place in these materials, along with their poor stability, is the bottleneck for optimisation and further development of metal halide perovskite devices. LÄS MER

  4. 3. Behov av surgörning av urin vid analys för kalcium, fosfat och magnesium

    Uppsats för yrkesexamina på grundnivå, Örebro universitet/Institutionen för hälsovetenskaper

    Författare :Frida Joensuu; [2021]
    Nyckelord :Urine; Acidification; Calcium; Phosphate; Magnesium; Salt crystals; Urin; Surgörning; Kalcium; Fosfat; Magnesium; Saltkristaller;

    Sammanfattning : Studier har tidigare visat surgörning urinprover inför analys av kalcium, fosfat och magnesium inte är nödvändigt. Dessa analyter är viktiga att analysera vid njursjukdomar och det görs med instrumentet Advia Chemistry XPT (Siemens AG, München, Tyskland) på Universitetssjukhuset Örebro. LÄS MER

  5. 4. Theoretical study of anisotropic effects in crystal growth on the example of concrete and calcium oxalate monohydrate

    Master-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Vilhelm Ekberg; [2019]
    Nyckelord :anisotropic crystal growth; COM; C-S-H; PM6; ReaxFF$_{ textrm{SiO}}$; organizing molecular matter; nanochemistry; nanokemi; Chemistry;

    Sammanfattning : While many crystals, both natural and artificial, grow isotropically, there are examples of crystals growing anisotropically. The aim of this theoretical study was to confirm the growth modes displayed by three different crystals, representing 3D, 2D and 1D structures. LÄS MER

  7. 5. Finite element modelling of strained nanowire heterostructures

    Kandidat-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Alexander Grape Wyke; [2019]
    Nyckelord :Strain; nanowire; heterostructure; physics; nanophysics; COMSOL; simulation; lattice; Physics and Astronomy;

    Sammanfattning : When two materials with different lattice constants are grown together, this generates stress between them, and therefore strain. This strain causes them to have different thermal and electrical properties, and this is especially important on the nanoscale where changes have large impacts. LÄS MER