Essays about: "modellering"

Showing result 1 - 5 of 489 essays containing the word modellering.

  1. 1. Chemical Stabilization of Arsenic in Contaminated Soil under Low Redox Conditions

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Eva Smedborn Pausson; [2019]
    Keywords : ;

    Abstract : Remediation techniques for arsenic contaminated soil have previously focused mostly on the surface soil layers where aerobic conditions are prevalent. In this master thesis, chemical stabilization by adding zero-valent iron (Fe(0)) and calcium oxide (CaO) to an arsenic-contaminated soil under low redox conditions have been studied through up-flow percolation tests. READ MORE

  2. 2. Practicing mathematical modeling in upper secondary school : An analysis of the opportunities offered by Swedish and German textbooks

    University essay from Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013)

    Author : Iina Kröger; [2019]
    Keywords : mathematical modeling; textbook; content analysis; mathematics education in Sweden; mathematics education in Germany; matematisk modellering; lärobok; innehållsanalys; matematikundervisningen i Sverige; matematikundervisningen i Tyskland;

    Abstract : This study aims at investigating what opportunities mathematics textbooks used in Swedish and German upper secondary schools offer to practice modeling within the topic of mathematical analysis. The main interest of the study lies in how the textbook content relates to the national curriculum goals regarding modeling, but the Swedish and German textbooks are also compared to each other. READ MORE

  3. 3. Modeling of non-maturing deposits

    University essay from KTH/Matematisk statistik; KTH/Matematisk statistik

    Author : Fredrik Stavrén; Nikita Domin; [2019]
    Keywords : Financial mathematics; time series analysis; replicating portfolio; risk management; risk analysis; econometric anaylsis; non-maturing deposits; SARIMA; Random forest regression; EBA; BCBS; Finansiell matematik; tidsserieanalys; replikeringsportfölj; riskhantering; riskanalys; Ekonometrisk analys; Icke-tidsbunden inlåning; ARIMA; SARIMA; SARIMAX; Random Forest Regression; EBA; BCBS;

    Abstract : The interest in modeling non-maturing deposits has skyrocketed ever since thefinancial crisis 2008. Not only from a regulatory and legislative perspective,but also from an investment and funding perspective.Modeling of non-maturing deposits is a very broad subject. READ MORE

  4. 4. Importance of fish community structure, nutrients and browning for shallow lake ecosystem dynamics : A modelling perspective

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Ylva Karlberg; [2019]
    Keywords : biological modelling; bowning; food webs; trophic interactions; top-down and bottom-up control; nutrients; light; shallow lake; biologisk modellering; brunifiering; födovävar; trofiska interaktioner; näring; ljus; grund sjö;

    Abstract : In a changing climate, it is increasingly important to be able to model environmental effects on food webs, and to do that, one must have appropriate dynamic models. I present a shallow lake ecosystem model where producers, grazers, carnivores, piscivores, and detritivores are coupled through resource (light, nutrients and detritus) fluxes between the benthic and pelagic habitats and through carnivore life history events (ontogenetic habitat and diet shifts). READ MORE

  5. 5. Numerical Investigation of Various Modelling Strategies for Throttling a Transonic Compressor Rig Diffuser

    University essay from KTH/Kraft- och värmeteknologi

    Author : Borzou Dargahi; [2019]
    Keywords : ;

    Abstract : The concern of this study is modeling of the flow field in the diffuser of a 1.5 stage compressor test rig in which the mass flow is constrained at the exit of the diffuser. Constraining method is is applied through, throttling by means of a slab at the exit of the diffuser, where the flow enters the exit volute. READ MORE