Sökning: "multi-group analysis"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden multi-group analysis.
1. Essays on Estimation Methods for Factor Models and Structural Equation Models
Sammanfattning : This thesis which consists of four papers is concerned with estimation methods in factor analysis and structural equation models. New estimation methods are proposed and investigated.In paper I an approximation of the penalized maximum likelihood (ML) is introduced to fit an exploratory factor analysis model. LÄS MER
2. Predicting Xenon Oscillations in PWRs using Intrusive Reduced Order Modelling
Sammanfattning : The increasing presence of intermittent energy sources in the Swedish electricity grid necessitates a transition of Swedish nuclear reactors from constant base load operation to load-following mode. However, such changes in power can induce xenon oscillations, a phenomenon that poses operational challenges and the risk of fuel damage. LÄS MER
3. Some Aspects on Confirmatory Factor Analysis of Ordinal Variables and Generating Non-normal Data
Sammanfattning : This thesis, which consists of five papers, is concerned with various aspects of confirmatory factor analysis (CFA) of ordinal variables and the generation of non-normal data. The first paper studies the performances of different estimation methods used in CFA when ordinal data are encountered. LÄS MER
4. Power Reactor Noise Studies and Applications
Sammanfattning : The present thesis deals with the neutron noise arising in power reactor systems. Generally, it can be divided into two major parts: first, neutron noise diagnostics, or more specifically, novel methods and algorithms to monitor nuclear industrial reactors; and second, contributions to neutron noise theory as applied to power reactor systems. LÄS MER
5. From market orientation to orientation towards international marjets (OIM) of born global firms : evaluating the impact of OIM on born global firms' performance
Sammanfattning : Although there is a considerable amount of research on market orientation, research on this concept in the context of born global firms is still lacking a precise definition and full operationalization. This research aims to investigate how the market orientation (MO) concept could be understood for a specific type of firm: the born global firm. LÄS MER