Essays about: "spin modeling"

Showing result 1 - 5 of 14 essays containing the words spin modeling.

  1. 1. Dynamic Modeling of Heat Power System : Modeling of a Heat Power System Using Physical and Data-driven Methods and Investigation of a Moving Boundary Method

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Albin Gustafsson; [2023]
    Keywords : System identification; Dynamic modeling; Organic Rankine cycle; Moving boundary; Thermodynamics.; System identifikation; Dynamisk modellering; Organisk Rankinecykel; Rörliga randvillkor; Termodynamik.;

    Abstract : Our society is becoming more and more electrified every day. However, a significant portion of the world’s electricity generation relies on the combustion of fossil fuels to produce heat, which is subsequently harnessed to generate electricity. One way of generating electricity from heat is by utilizing a Rankine cycle. READ MORE

  3. 2. Electronic states in semiconductor double quantum dots and quantum rings - Theory and tight-binding modeling

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Calle Stenberg; [2021]
    Keywords : double quantum dots quantum rings tight-binding aharonov-bohm g-factor enhancement InAs; Physics and Astronomy;

    Abstract : In recent experiments on semiconductor nanowires and quantum dots, enhanced g-factors up to several times the bulk value have been measured [1] [2]. The enhancement is attributed to orbital contributions g∗orb to the effective g-factor g∗ = g∗spin+g∗orb from the coupling of the high angular momentum ring-like states to the magnetic field. READ MORE

  4. 3. Finite Element Approximation of a Moving Boundary Problem Arising in the Modeling of the Spin Coating Process for Thin Films

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

    Author : Kristos Qiqi; [2020]
    Keywords : Moving boundary; FEM approximation; Navier-Stokes equations; Spin coating;

    Abstract : Using the Navier-Stokes equations along with a continuity equation, a one-dimensional model is developed to describe the spin coating process of thin polymeric films. The resulting model is a system of a parabolic partial differential equation coupled with an integral equation as well as with an ordinary differential equation describing the motion of a moving boundary. READ MORE

  5. 4. Theory and Modeling of Electrical Control of Chiral Qubit in Spin-Frustrated Molecular Triangle

    University essay from Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Author : Shirin Hakimi; [2019]
    Keywords : quantum computers; spinfrustration;

    Abstract : Spin-frustrated molecular triangles have four low-lying energy states, so called chiral states, which can be employed as the unit of information, qubit, in a quantum computer. The fact that the chiral states are characterized by two quantum numbers chirality and spin allows the control of the magnetization of the molecule by an electric field due to the spin-electric interaction. READ MORE

  6. 5. Clustering and Anomaly Detection in Financial Trading Data

    University essay from Lunds universitet/Matematisk statistik

    Author : Erik Norlander; [2019]
    Keywords : Variational Autoencoder; Generative Models; Latent Space; Dimensionality Reduction; Unsupervised Learning; Anomaly Detection; Clustering; Gaussian Mixture Models; Isolation Forest.; Mathematics and Statistics;

    Abstract : In this thesis we propose a new form of Variational Autoencoder called the Conditional Latent Space Variational Autoencoder or CL-VAE. By conditioning on a known label in a dataset we can decide what points are being mapped to what prior distribution. This makes the latent space more understandable and separates the classes further. READ MORE