Essays about: "Nonlinear trend"

Showing result 1 - 5 of 10 essays containing the words Nonlinear trend.

  1. 1. Dynamic Analysis of an Automotive Power Transfer unit : Towards prediction of TE and housing vibrations

    University essay from KTH/Maskinkonstruktion (Avd.)

    Author : Nikhil Maharshi Kosaraju; [2019]
    Keywords : Power transfer unit PTU ; Multi-Body Simulation MBS ; Transmission Error; Gear NoiseVibration; Modal Analysis; Vinkelväxlen PTU ; Multi-Body Simulering MBS ; transmissionsfel TE ; Växelljud och vibrationer; Modal analys;

    Abstract : This work describes the use of Multi-Body Simulation (MBS) to create a virtual prototype of a geared drive called Power transfer unit (PTU). PTU is a subsystem of the all-wheel drive driveline responsible for transfer of power between front and rear axles in an Automobile. READ MORE

  2. 2. On the use of integer and fractional flexible Fourier form Dickey-Fuller unit root tests

    University essay from Lunds universitet/Nationalekonomiska institutionen

    Author : Marcus Nordström; [2018]
    Keywords : Fractional frequency flexible Fourier form; Unit root test; Structural break; Smooth break; Nonlinear trend; Business and Economics;

    Abstract : In this paper we propose the use of a new set of conservative critical values for the flexible Fourier form Dickey-Fuller unit root test when the Fourier frequency is estimated. We consider both the integer frequency and the fractional frequency version of the test and investigate their size and power properties. READ MORE

  3. 3. Change Point Detection and Kernel Ridge Regression for Trend Analysis on Financial Data

    University essay from KTH/Skolan för teknikvetenskap (SCI); KTH/Skolan för teknikvetenskap (SCI)

    Author : David Petersson; Emil Backman; [2018]
    Keywords : ;

    Abstract : The investing market can be a cold ruthless place for the layman. In order to get the chance of making money in this business one must place countless hours on research, with many different parameters to handle in order to reach success. To reduce the risk, one must look to many different companies operating in multiple fields and industries. READ MORE

  4. 4. Finite Element Analysis of the Dynamic Effect of Soil-Structure Interaction of Portal Frame Bridges - A Parametric Study

    University essay from KTH/Bro- och stålbyggnad; KTH/Bro- och stålbyggnad

    Author : Turgay Dagdelen; Shaho Ruhani; [2018]
    Keywords : Soil-Structure Interaction; Railway Bridge; Portal Frame Bridge; Dynamic Analysis; Parametric Study; Nonlinear Analysis; Jord-struktur interaktion; Järnvägsbro; Plattrambro; Dynamisk analys; Parametrisk studie; Icke-linjär analys;

    Abstract : In Sweden, the railway sector currently faces the challenge of developing its first high-speed railway line, in response to the need to provide faster domestic and international transport alternatives. High-speed train passages on railway bridges can cause resonance in the bridge superstructure, which induce high accelerations that should not exceed the limits stipulated in the current design code. READ MORE

  5. 5. Resource distribution in disturbed landscapes – the effect of clearcutting on berry abundance and their use by brown bears

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Matej Domevscik; [2018]
    Keywords : bilberry; lingonberry; forest management; ursus arctos; Vaccinium myrtillus; Vaccinium vitis-idaea; resource selection functions; modeling landscape use;

    Abstract : To survive winter hibernation, brown bears (Ursus arctos) need to store excess energy during late summer and autumn. Scandinavian brown bears usually have an abundance of berries to feed on, but their distribution varies depending on forest structure and age. READ MORE