Sökning: "UV absorption"

Visar resultat 1 - 5 av 50 uppsatser innehållade orden UV absorption.

  1. 1. Optical properties of water absorbing textiles for camouflage

    Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Eveline Örtenberg; [2023]
    Nyckelord :Camouflage; SWIR; Water; Nanocellulose; CNF; Textiles;

    Sammanfattning : Background matching, a form of camouflage, involves species developing patterns and coloration that closely resemble their environment. Humans have utilized camouflage and background matching, particularly in military applications, to reduce detectable characteristics, known as signatures. LÄS MER

  3. 2. 3′-end fluorescence labelling of long RNAs using terminal deoxynucleotidyl transferase

    Kandidat-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Johannes Lidberg; [2022]
    Nyckelord :Physical biochemistry; Fluorescence; In vitro transcription; RNA; Terminal deoxynucleotidyl transferase; Nucleobase analogue; Chemistry;

    Sammanfattning : Through recent years, RNA has rapidly gone from mainly being known as a passive information-carrying molecule within the central dogma of molecular biology to becoming the active ingredient in multiple therapeutics, such as in vaccines and potential drugs against cancer. However, one of the main challenges with RNA as a therapeutic is efficient delivery to cells. LÄS MER

  4. 3. Development of an absorption model for gas discharge lamp simulation

    Master-uppsats, Malmö universitet/Institutionen för materialvetenskap och tillämpad matematik (MTM)

    Författare :Oscar Vigstrand; [2021]
    Nyckelord :Discharge lamp; Plasma; UV radiation;

    Sammanfattning : Ultraviolet (UV) light has been used for disinfection purposes for over 100 years. Irradiation by UV light is a method to disinfect surfaces in order to prevent microbiological growth. At Tetra Pak this is of great importance as they are manufacturer of filling machines. LÄS MER

  5. 4. A photodegradation study of conjugated polymers for organic solar cells by absorption spectroscopy and atomic force microscopy

    Uppsats för yrkesexamina på avancerad nivå, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Johansson André; [2021]
    Nyckelord :OSC; solar cells; active layer; polymer; degradation;

    Sammanfattning : The effect of light exposure in ambient air on thin films made from an electron acceptor polymer poly{[N,N'-bis(2-octyldodecyl)naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5'-(2,2'-bithiophene)} (N2200), an electron donor polymer Poly[[2,3-bis(3-octyloxyphenyl)-5,8-quinoxalinediyl]-2,5-thiophenediyl] (TQ1) and their blends, has been studied using UV-vis spectroscopy and Atomic Force Microscopy (AFM). For solutions of TQ1, N2200 and blends, the linearity of the Beer-Lambert law for absorption spectroscopy has been verified. LÄS MER

  7. 5. Design, synthesis and characterization of Dimethylammonium / Ethylammonium / Cesium Lead  Halide Perovskites for optoelectronic applications

    Kandidat-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Elin Ljungström; Ellen Hådén; Lukas Lekberg; Nima Taherpour; [2020]
    Nyckelord :Perovskit; solcell; perovskitsolcell; halvledare; organiska oorganiska perovskiter;

    Sammanfattning : The world is facing a climate crisis and to be able to solve it society needs to decrease the use of fossil fuels and find renewable alternatives. Solar energy is a great contender for a renewable energy source since it can be harvested for eternal time. LÄS MER