Sökning: "Time-dependant"

Hittade 5 uppsatser innehållade ordet Time-dependant.

  1. 1. Simulations of the Tenuous Upper Atmospheres of Exoplanets

    Master-uppsats, Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Författare :Lucian Spitzner; [2023]
    Nyckelord :astronomy; astrophyics; exoplanets; transmission spectroscopy; magnetic fields; atmospheres; ions; Physics and Astronomy;

    Sammanfattning : Over the last decade, the interest in research on extraterrestrial planets has expanded dramatically. With the number of confirmed exoplanets having increased tenfold over the last ten years, we now know that many different types of exoplanets exist. LÄS MER

  3. 2. Predict Flow Field and Mixing Time for High-Shear Mixers Using CFD

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :David Fransson; Eric Kihlman; [2021]
    Nyckelord :CFD; High-Shear Mixer; Energy Science; Simulation; Mixing time; blend time; Flow Field; Technology and Engineering;

    Sammanfattning : Batch high-shear mixers are used in a variety of different processing industries,such as the pharmaceutical, chemical and food industries. One company that utilize this type of mixers is Tetra Pak. High-shear mixers can be used for many different mixing scenarios, but only liquid-liquid mixing is discussed in the thesis. LÄS MER

  4. 3. Modelling Time-Dependent Effects for Segmentally Constructed Prestressed Concrete Bridges

    Master-uppsats, Lunds universitet/Avdelningen för Konstruktionsteknik; Lunds universitet/Institutionen för bygg- och miljöteknologi

    Författare :Niclas Elfving; Joel Sunesson; [2021]
    Nyckelord :Concrete; Creep; Segmentally constructed; Prestressing; Post-tensioning; Viscoelastic; Eurocode; Finite Element; Shell elements; Beam elements; Time-dependant; Steel relaxation.; Technology and Engineering;

    Sammanfattning : Tidsberoende effekter, såsom krypning, krympning och stålrelaxation, är ofta svåra att prediktera när det kommer till förspända betongkonstruktioner. Krypning som ett fenomen är komplicerat och förenklas därför i gällande byggnormer (Eurocode), för att underlätta konstruktörens arbete. LÄS MER

  5. 4. Dipole Orientation of Gas Phase Ubiquitin Using Time Dependent Electric Fields

    Kandidat-uppsats, Uppsala universitet/Molekyl- och kondenserade materiens fysik

    Författare :Harald Agelii; [2020]
    Nyckelord :dipole orientation; protein; spectography; GROMACS; simulation; single particle imaging;

    Sammanfattning : The method of dipole orientation of protein complexes using electric fields plays a key role in the development of single particle imaging, since it enables orientation of the protein in vacuum. In the orientation process the protein is exposed to an external electric field along which the dipole axis of the protein will eventually align. LÄS MER

  7. 5. Measuring the Characteristic Sizes of Convection Structures in AGB Stars with Fourier Decomposition Analyses : the Stellar Intensity Analyzer (SIA) Pipeline.

    Master-uppsats, Uppsala universitet/Teoretisk astrofysik

    Författare :Miquel Colom i Bernadich; [2020]
    Nyckelord :Asymptotic Giant Branch; AGB; red giants; stars; stellar convection; Fourier analysis; convection cells;

    Sammanfattning : Context. Theoretical studies predict that the length scale of convection in stellar atmospheres isproportional to the pressure scale height, which implies that giant and supergiant stars should have convection granules of sizes comparable to their radii. LÄS MER