Sökning: "sinusoidal regression"

Hittade 5 uppsatser innehållade orden sinusoidal regression.

  1. 1. Statistical quality assurance of IGUM : Statistical quality assurance and validation of IGUM in a steady and dynamic gas flow prior to proof of concept

    Kandidat-uppsats, Stockholms universitet/Statistiska institutionen

    Författare :Elin Kornsäter; Dagmar Kallenberg; [2022]
    Nyckelord :Statistic; Bayesian hierarchical modelling; sinusoidal regression; ordinary least squares; hypothesis testing; analysis of variance;

    Sammanfattning : To further support and optimise the production of diving tables for the Armed Forces of Sweden, a research team has developed a new machine called IGUM (Inert Gas UndersökningsMaskin) which aims to measure how inert gas is taken up and exhaled. Due to the new design of machine, the goal of this thesis was to statistically validate its accuracy and verify its reliability. LÄS MER

  3. 2. Machine Learning of Crystal Formation Energies with Novel Structural Descriptors

    Master-uppsats, Linköpings universitet/Teoretisk Fysik

    Författare :Claudia Bratu; [2017]
    Nyckelord :Machine learning; crystal; formation energy; kernel ridge regression; KRR; representation; descriptor; feature vector representation;

    Sammanfattning : To assist technology advancements, it is important to continue the search for new materials. The stability of a crystal structures is closely connected to its formation energy. By calculating the formation energies of theoretical crystal structures it is possible to find new stable materials. LÄS MER

  4. 3. Idenitfying the Influential Factors of the Temporal Variation of Water Consumption : A Case Study using Multiple Linear Regression Analysis

    Master-uppsats, KTH/Vattendragsteknik

    Författare :Hanna Brandner; [2016]
    Nyckelord :Water consumption; Sweden; Multiple regression analysis;

    Sammanfattning : This thesis is a part of the water development project conducted by Svenskt Vatten, which is the Swedish Water and Wastewater Association (SWWA) as well as Tyréns, a consultancy company with offices based in Stockholm, Sweden. Prior to this thesis work, a quality assessment was conducted for some of the locations provided by municipalities in Sweden. LÄS MER

  5. 4. Stochastic Modeling of Electricity Prices and the Impact on Balancing Power Investments

    Master-uppsats, KTH/Industriell ekonomi och organisation (Inst.)

    Författare :Richard Ruthberg; Sebastian Wogenius; [2016]
    Nyckelord :Energy investment; investment valuation; renewable energy production; electricity price modeling; long-term; combined heat and power; CHP; balancing power; intermittent renewable energy modeling; Pilipovic model; multi-factor model; sinusoidal regression; Ornstein-Uhlenbeck estimation; electricity price duration prediction; Nord Pool; Sweden electricity market; future energy systems; phasing out nuclear power; energy policy.;

    Sammanfattning : Introducing more intermittent renewable energy sources in the energy system makes the role of balancing power more important. Furthermore, an increased infeed from intermittent renewable energy sources also has the effect of creating lower and more volatile electricity prices. LÄS MER

  7. 5. Sensorless Control of a Hybrid Stepper Motor

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Lina Karlsson; [2016]
    Nyckelord :Hybrid Stepper Motor;

    Sammanfattning : Electrical drives are widely used in today’s society. They can be found in bothhousehold products and in the industry. One application where electrical drivesare used is in robots for mowing lawns. In the studied robots the motors in theelectrical drives used for propulsion are Brush Less Direct Current motors, BLDCmotors. LÄS MER