Essays about: "Röntgenfluorescens"

Showing result 1 - 5 of 10 essays containing the word Röntgenfluorescens.

  1. 1. Investigating the potential correlations between metal and metalloid concentrations and soil color : A Minor Field Study on the island province of Marinduque, Philippines

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Ivana Pia Saric Söderholm; Erik Readwin; [2023]
    Keywords : Marinduque; Metal and Metalloid; Nix Pro 2 Color Sensor; Philippines; Soil color; X-Ray Fluorescence XRF ; Filippinerna; Jordfärg; Marinduque; Metall och Metalloid; Nix Pro 2 Color Sensor; Röntgenfluorescens XRF ;

    Abstract : This study was carried out as a bachelor's thesis at KTH Royal Institute of Technology during the spring of 2023, investigating the correlation between the color with the concentration of various metal and metalloids (MMs) in the soil of Marinduque, The Philippines. With a history of mineral exploitation, notably copper and gold, the island has faced persistent environmental challenges, exemplified by the catastrophic waste spills in 1993 and 1996 that contaminated the Boac and Mogpog Rivers. READ MORE

  3. 2. Tracing Characteristics of Two Water Hole Features with Multiproxy Analysis : Using Soil Chemistry, Archaeobotany and Entomology

    University essay from Umeå universitet/Institutionen för idé- och samhällsstudier

    Author : Johanna Kantak; [2023]
    Keywords : Water wells; Macrofossils; Soil chemistry; NiR; MS; XRF;

    Abstract : En omfattande multiproxyanalys har utförts på provtagningar från två vattenhål belägna i Skåneregionen i Sverige. Denna mångsidiga analys involverade flera aspekter, inklusive markkemi, entomologi, mikrofossiler och makrofossiler. Resultaten från markkemianalysen avslöjade betydande skillnader mellan de två vattenhålen. READ MORE

  4. 3. Water-based Synthesis of Superparamagnetic X-ray Fluorescent Contrast Agents

    University essay from KTH/Tillämpad fysik

    Author : Daniel Cortés García; [2022]
    Keywords : Nanoparticles; SPIONs; XFCT; co-precipitation.; Nanopartiklar; SPIONs; XFCT; samfällning;

    Abstract : Nowadays, nanomedicine is one of the most important application areas fornanoparticles (NPs), where the design and synthesis of new hybrid nanostructures have attracted much interest, when combining properties and functionalities from different constituents. For example, they have been extensivelyused for dual-mode imaging. READ MORE

  5. 4. Graphene Quantum Dots as Fluorescent and Passivation Agents for Multimodal Bioimaging

    University essay from KTH/Tillämpad fysik

    Author : Nüzhet Inci Kilic; [2021]
    Keywords : graphene quantum dots; hybrid nanoparticles; x-ray fluorescence contrast agents; multimodal bioimaging; grafen-kvantprickar; hybrida nanopartiklarna; multimodal bioavbildning; röntgenfluorescens kontrastmedel;

    Abstract : Zero-dimensional graphene (carbon) quantum dots have been drawing attention in bio-related applications since their discovery, especially for their optical properties, chemical stability, and easily modifiable surface.  This thesis focuses on the green synthesis of nitrogen-doped graphene quantum dots (GQDs) for dual-mode bioimaging with X-ray fluorescence (XRF) and optical fluorescence. READ MORE

  6. 5. Material characterization of multi-layered Zn-alloy coatings on fasteners : Effects on corrosion resistance, electrical conductivity and friction

    University essay from KTH/Materialvetenskap

    Author : Ante Vallien; [2018]
    Keywords : ZnNi; zinc alloy; multi-layered coating; electrodeposited coating; fasteners; corrosion resistance;

    Abstract : Electroplated zinc-alloy coatings have been used on fasteners in the automotive industry for many years. The coating often consists of three layers: a zinc-alloy layer, a passivation layer and a sealer or top-coat. READ MORE