Essays about: "Strontium analysis"

Showing result 1 - 5 of 12 essays containing the words Strontium analysis.

  1. 1. Performance Evaluation of a bench-scale Thermochemical Storage System

    University essay from KTH/Energiteknik

    Author : Harish Balaji Seetharaman; [2022]
    Keywords : Thermal energy storage TES ; Thermochemical heat storage TCS ; SrCl2-NH3; Absorption; Desorption; Monoammine; Octaammine; Performance evaluation.; Termisk energilagring TES ; Termokemisk energilagring TCS ; SrCl2-NH3; Absorption; Desorption; Monoammin; Oktaammin; Utvärdering av prestanda.;

    Abstract : This thesis is part of a joint thermochemical heat storage (TCS) research project named Neutrons for Heat Storage (NHS), involving three Nordic research institutes. The project isfunded by Nordforsk and KTH Royal Institute of Technology for the project partner KTH. READ MORE

  3. 2. Chemical analysis of hazardous substances in permanent tattoo inks available on the market

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Anna Bevin; An Na Lay; Daniel Ullmark; Jessika Hagman; [2020]
    Keywords : Tattoo inks; tattoos; metals; pigments; skin; matrix assisted laser desorption ionization time of flight mass spectrometry; inductively coupled plasma mass spectrometry; mass spectrometry; allergens; dyes;

    Abstract : As permanent tattoos are becoming more popular and common, an increased number of allergic reactions to tattoos is reported. The purpose of this project was to analyze tattoo inks for hazardous substances, and whether they comply to current Swedish and European legislative requirements. READ MORE

  4. 3. Investigation of the Metal Content in Cress Seedlings fed with increased Concentration of Lead & Iron Solutions

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Nikita Burton; [2020]
    Keywords : Cress; iron; lead; metals; acidified digestion; MP-AES; ICP-MS;

    Abstract : Metals are essential nutrients for plant health, but not all metals are necessary and can sometimes be harmful towards plants depending on factors such as species, elemental composition in the soil and concentration of a metal. Iron (Fe), which is one of the most abundant metals in the earth’s crust is also one the most important nutrients for plant growth, as it is responsible for metabolism. READ MORE

  5. 4. A Numerical Calculation Tool Design for the Performance Assessment of a Bench-Scale Thermochemical Heat Storage System

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : DIYUE WANG; [2020]
    Keywords : Calculation tool; SrCl2-NH3; Performance evaluation; Mass; Energy; Beräkningsverktyg; SrCl2-NH3; Prestandasutvärdering; massa; energi;

    Abstract : Thermochemical heat storage (TCS) is a technology to convert the heat and cold energy into chemical energy, via reversible chemical reactions, to be stored for heating and cooling applications. TCS technology is gaining interest for its very compact energy storage densities offering attractive thermal energy storage (TES) alternatives to decrease energy-related greenhouse gas(GHG) emissions and contribute to sustainable development. READ MORE

  6. 5. Rb-Sr sphalerite data and implications for the source and timing of Pb-Zn deposits at the Caledonian margin in Sweden

    University essay from Lunds universitet/Geologiska institutionen

    Author : Alfred Larsson; [2018]
    Keywords : Laisvall; Granberget; geochronology; sphalerite; ore; Rb-Sr; Earth and Environmental Sciences;

    Abstract : The eastern Caledonian erosional front hosts the world-class Pb-Zn deposit at Laisvall (64 Mt mined) and Granberget mineralization, northern Sweden, along with several other smaller, related types of deposits consisting of impregnation mineralization of galena and sphalerite in clastic host rocks. Previous work have discussed the nature of the ore-forming processes and constraints for the timing of the mineralization, however, the mechanisms are still not fully understood and previous age determinations are ambiguous. READ MORE