Essays about: "Nucleus"

Showing result 1 - 5 of 153 essays containing the word Nucleus.

  1. 1. Application of Fourier Transforms to time-resolved ambient pressure spectroscopy operando studies of CO oxidation over Pt(111)

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

    Author : Grigore-Leon Ratiu; [2024]
    Keywords : Physics and Astronomy;

    Abstract : The study of heterogeneous catalysis has important implications in increasing the efficiency of industrial processes and in reducing the emissions of greenhouse gases from sources such as automobiles. A reaction with high industrial relevance is the oxidation of CO on noble metal catalysts. READ MORE

  2. 2. Decay Chains of Fast Alpha Emitters in the Actinide Region

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Partikel- och kärnfysik

    Author : Tanvir Sayed; [2024]
    Keywords : alpha decay; alpha emissions; fine structure; decay chain; decay scheme; alpha spectrometry; actinide; nucleus; nuclear structure; nuclear states; energy levels; uranium isotopes; U310 experiment; parasitic runs; decay station; TASISpec ; moving window deconvolution; digitisers; alpha-gamma coincidence; 221-Th decay; fine structure of alpha decay to 217-Ra; GSI; Gamow s theory; Geiger-Nuttall; chain search; short half-lives; Physics and Astronomy;

    Abstract : With the advent of increasingly advanced spectroscopic instruments after the turn of the century, it has become accessible to unravel the structure of instantly ‘vanishing’ nuclei, with lifetimes as short as 1 μs, and responsible for pile-up events in analog electronics. Experimental data has been recorded by the Nuclear Structure Group at Lund University for 48Ca/50Ti + nat. READ MORE

  3. 3. Studying gene expression scaling with cell size in Arabidopsis thaliana : the role of the nuclear RNA exosome complex

    University essay from SLU/Dept. Of Plant Biology

    Author : Emily Tåhlin; [2024]
    Keywords : RNA; transcription; cell size; smFISH; Arabidopsis thaliana;

    Abstract : The scaling of organ size with body size - known as morphological allometry - is a fundamental mechanism observed in all organisms (Mirth et al. 2016). READ MORE

  4. 4. Diagnostisk användbarhet av vaginalcytologi hos tik

    University essay from SLU/Dept. of Clinical Sciences

    Author : Sara Huber; [2023]
    Keywords : estradiol; vaginalcytologi; östruscykel; pyometra; juvertumör; tik;

    Abstract : Syftet med detta arbete var att jämföra östradiolkoncentrationer och östradiolpåverkan på vaginal-epitelet hos tikar i olika löpstadier och tikar med sjukdomstillstånden pyometra och juvertumörer, och på så sätt studera användbarheten av vaginalcytologi som diagnostiskt verktyg vid dessa sjukdomstillstånd. Syftet var även att jämföra två olika metoder för att utvärdera vaginalutstryk. READ MORE

  5. 5. Propagation of Nuclear Data Uncertainties for Reactor Physics Parameters in Fluorine-19-based Molten Salt Reactors

    University essay from Uppsala universitet/Tillämpad kärnfysik

    Author : Sigfrid Stjärnholm; [2023]
    Keywords : ;

    Abstract : It could be argued that a renaissance is taking place for the global interest in nuclear power - especially for the development of the next generation of reactor systems that aim at solving the problems with contemporary energy production with nuclear technology. One such proposed concept for Gen IV nuclear power is a Molten Salt Reactor (MSR), in which the nuclear fuel is in solution of a salt - often based on fluorine or chlorine. READ MORE