Essays about: "strontium"

Showing result 6 - 10 of 32 essays containing the word strontium.

  1. 6. 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

  3. 7. 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

  4. 8. Compilation and evaluation of validations of computer codes for spent nuclear fuel – a review

    University essay from Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Staffan Fors; [2019]
    Keywords : Nuclear fuel; Kärnbränsle; Slutförvar; Fissionsprodukter; Physics and Astronomy;

    Abstract : This report describes a systematic review regarding validations of calculations by measurements of isotopic compositions, or decay heat, on spent nuclear fuel, SNF. 15 relevant or otherwise interesting studies, were found. Two reports were chosen among the found studies and analyzed. READ MORE

  5. 9. The Victims at Sandby Borg : Tracing mobility and diet usingstrontium analyses

    University essay from Stockholms universitet/Arkeologiska forskningslaboratoriet

    Author : Kerstin Calleberg; [2019]
    Keywords : 87Sr 86Sr; strontium; migration; Sandby borg; Öland; massacre; teeth; Migration Period; Iron Age; Laser Ablation;

    Abstract : Sandby borg, an Iron Age ringfort on Öland, Sweden has been and is still at the center of attention in media and archaeological research. The massacre uncovered at the site during recent years opens many doors for analyses on the Migration Period (c. 400-550 AD) Iron Age skeletal remains. READ MORE

  6. 10. 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