Essays about: "wiener"

Showing result 6 - 10 of 79 essays containing the word wiener.

  1. 6. Plant community responses to 15 years of nitrogen and phosphorus fertilization along an elevational gradient in the subarctic tundra

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Gaya Ten Kate; [2023]
    Keywords : arctic tundra; climate change; fertilization; nitrogen; phosphorus; plant community composition; species richness; Simpson’s diversity; Shannon-Wiener diversity; elevational gradient;

    Abstract : Climate change in the Arctic has profound effects on tundra vegetation, directly through increasing temperatures and indirectly through changes in plant community composition and nutrient cycling. Fertilization experiments are widely used to study the effects of increased nutrient availability on arctic tundra vegetation. READ MORE

  3. 7. Distances in random trees

    University essay from Uppsala universitet/Sannolikhetsteori och kombinatorik

    Author : Jacob Lundblad; [2023]
    Keywords : Random trees; simply generated trees; recursive trees; plane oriented recursive trees; PORTs; Wiener index; internal path length;

    Abstract : The Wiener index of a graph G is defined as the sum of the distances between all pairs of vertices in G. In this master thesis we introduce recursive trees, plane oriented recursive trees (PORTs) and simply generated trees. READ MORE

  4. 8. Development and implementation of a tram line performance model

    University essay from KTH/Väg- och spårfordon samt konceptuell fordonsdesign

    Author : Christian Matz; [2022]
    Keywords : tram; Vienna; travel time; tram operation; Spårvägn; Wien; restid; spårvagnstrafik;

    Abstract : Wiener Linien’s tram network is one of the largest and busiest of its kind worldwide. Maintaining and improving the Level of Service (LoS) is one of the major tasks of the operations division. To direct these improvements efficiently to lines and sections of lines in need, tram line performance needs to be assessed. READ MORE

  5. 9. Financial Modelling Using Fractional Processes And The Wiener Chaos Expansion

    University essay from KTH/Matematik (Avd.)

    Author : Olof Hummelgren; [2022]
    Keywords : fractional Brownian motion; fBM; applied mathematics; Wiener chaos expansion; Wick product; Hurst parameter; fraktionell Brownsk rörelse; tillämpad matematik; Wiener kaosexpansion; Wickprodukt; Hurstparameter;

    Abstract : The aim of this thesis is to simulate stochastic models that are driven by a fractional Brownian motion process and to apply these methods to financial applications related to yield rate and asset price modelling. Several rough volatility processes are used to model the asset price and yield dynamics. READ MORE

  6. 10. Modeling and Simulation of a Remote Controlled Weapon Station

    University essay from KTH/Matematik (Avd.)

    Author : Mats Svalstedt; [2022]
    Keywords : Modeling; System identification; Nonlinear black-box; Remote controlled weapon station; Modellering; Systemidentifiering; Icke-linjär black-box; Fjärrmanövrerad vapenstation;

    Abstract : Understanding how a system behaves when exposed to different scenarios is key when improvingand developing complex structures. The amount of different approaches is immense and variesfrom case to case. READ MORE