Sökning: "Two-level Modeling"

Hittade 5 uppsatser innehållade orden Two-level Modeling.

  1. 1. Open quantum systems

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Anton Granlund Gustafsson; [2023]
    Nyckelord :quantum physics; quantum mechanics; open quantum systems; Lindblad equation; density matrix theory; qubit;

    Sammanfattning : In this Bachelor thesis project, the Lindblad master equation is derived, both as the most general way of modeling interaction with an environment that lacks memory, and through microscopic derivations focused on assumptions about the way the system interacts with its environment (weak-coupling, Born-Markov and rotating wave approximations). It is then applied to a two-level system (qubit). LÄS MER

  3. 2. Battery Digital Twin : Modeling and Characterization of a Lithium-Ion Battery

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Fabian Sund; Gustav Erbing; [2021]
    Nyckelord :Electrical vehicles; Lithium-ion batteries; Modular multilevel converter; Two-level converter; Thermal characteristics;

    Sammanfattning : Electrical vehicles have become more popular during recent years due to their reduced greenhouse gas emissions. The research within Li-ion batteries is therefore moving fast. Presently, two-level converters transforming the current from DC to AC. LÄS MER

  4. 3. SCHOOL MATERIAL RESOURCES AND STUDENT READING ACHIEVEMENT IN THE UNITED ARAB EMIRATES

    Master-uppsats, Göteborgs universitet/Institutionen för pedagogik och specialpedagogik

    Författare :Linda Gogliotti; [2020-09-10]
    Nyckelord :PISA 2018; United Arab Emirates educational system; reading achievement; school material resources; Ecological Systems Theory;

    Sammanfattning : Aim: This study aimed to 1) identify differences in overall student reading achievement in the UAE based on student gender, 2) determine if there is school material resource inequity in the UAE based on school location or school type, and 3) measure the effects of school material resources on student reading achievement in the UAE while controlling for other variables. Theory: The theoretical framework used for this study is Bronfenbrenner’s Ecological Systems Theory including the Process-Person-Context-Time model. LÄS MER

  5. 4. EDUCATIONAL EQUITY IN MOLDOVAN COMPULSORY SCHOOLS Factors behind Outcome Differences in PISA 2015

    Master-uppsats, Göteborgs universitet/Institutionen för pedagogik och specialpedagogik

    Författare :Oxana Rosca; [2018-08-25]
    Nyckelord :Educational Equity; Two-level Modeling; PISA; Moldova;

    Sammanfattning : Aim: To examine within-country differences in the effect of school-level factors and schools’ compensatory power through directly comparing the estimated coefficients on individual- and between-school levels. Theory: Input-Process-Output (IPO) conceptual and analytical model in the rubric of educational outcomes and predictive factors of Educational Effectiveness Research Method: Two-level models with random-slope were estimated at student- and school levels using Mplus application as a statistical tool. LÄS MER

  7. 5. Feeling the zeros : Modeling individual responses, measured against time, to treatment of chronic myeloid leukemia.

    Kandidat-uppsats, Uppsala universitet/Statistiska institutionen

    Författare :Anna Warnqvist; [2017]
    Nyckelord :two-level modeling; censored modeling; chronic myeloid leukemia;

    Sammanfattning : In this paper response curves of patients with chronic myeloid leukemia are modeled using one and two-level censored models. Two-level models (also called mixed models) allow random effects and censored models are used to account for the large amount of values too small to be detected. LÄS MER