Essays about: "dispersion equation."

Showing result 1 - 5 of 15 essays containing the words dispersion equation..

  1. 1. Superluminous magnons in Nickel Oxide

    University essay from Uppsala universitet/Materialteori

    Author : Jannes van Poppelen; [2023]
    Keywords : ;

    Abstract : Recent experiments have shown that the magnon velocity over nanoscale distancesin certain antiferromagnetic materials, with NiO in particular, far exceeds the previous theoretical maximum. Antiferromagnetic insulators are excellent candidatesfor spintronic nanodevices due to their exceptionally low energy dissipation, whichcould benefit the future speed at which information is stored. READ MORE

  3. 2. Temperature dependency of rheological properites of different dispersions containing microfibrillated cellulose

    University essay from Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

    Author : Johanna Swanelius; [2022]
    Keywords : Microfibrillated cellulose; MFC; waxy maize starch; rheology; temperature; viscosity; complex viscosity; stready shear viscosity curve; amplitude sweep; dry content; dynamic rotational rheometer; Mikrofibrillerad cellulosa; MFC; vaxartad majsstärkelse; reologi; temperatur; viskositet; komplex viskositet; flödeskurva; amplitudsvep; torrhalt; dynamisk reometer;

    Abstract : Today, the focus lies on the state of the environment and how we can choose more sustainable alternatives to oil based materials. One material of interest is microfibrillated cellulose (MFC). READ MORE

  4. 3. Study of the Dilution of a chemical spill through tracer experiments in The Käppala Association's Sewerage Network, Stockholm

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Jerome Scullin; [2021]
    Keywords : Sewerage network; Tracer tests; Solute transport; ADE; Breakthrough curve; Uranine;

    Abstract : Wastewater treatment plants (WWTPs) play a vital role in protecting the environment from much of the waste produced by humans. This includes not only human waste, but everything that makes its way into a sewerage system including greywater, stormwater, and potentially hazardous chemicals from, inter alia, chemical spills. READ MORE

  5. 4. Modelling of water and material transport in River Storån to Lake Bolmen

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Imjal Sukupayo; [2021]
    Keywords : Brownification; Water Color; Dissolved Organic Matter; Discharge; hydraulic analysis; Tracer Analysis; Dispersion coefficient; Advection and Diffusion; Bolmen Lake; Storån River; Technology and Engineering; Earth and Environmental Sciences;

    Abstract : The change of color of water from yellow to brown termed as brownification process is mainly due to leaching of humus and iron concentrations. In recent years, this problem is increasing in lake Bolmen, a major source of drinking water in Skåne county, Sweden. READ MORE

  6. 5. Investigating Gas Turbulence in Galactic Discs

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Timmy Ejdetjärn; [2019]
    Keywords : galaxies; gas; turbulence; interstellar medium; star formation; feedback; gravitational instability; local; high redshift; Physics and Astronomy;

    Abstract : The interstellar medium of both local and distant disc galaxies is observed to be supersonically turbulent and the turbulent motion of the gas is thought to be important for galaxy formation and evolution, particularly as a key ingredient for star formation. Consequently, this generates a striking relation between the star formation rate (SFR) and gas velocity dispersion ($\sigma_{\rm g}$; a measurement on the level of turbulence). READ MORE