Essays about: "analysis parametrisation"

Found 4 essays containing the words analysis parametrisation.

1. 1. Principal Component Modelling of Fuel Consumption ofSeagoing Vessels and Optimising Fuel Consumption as a Mixed-Integer Problem

   University essay from Mälardalens högskola/Akademin för utbildning, kultur och kommunikation

   Author : Jean-Paul Ivan; [2020]
   Keywords : fuel consumption modelling; dimensionality reduction; PCA; principal component analysis; Box-Cox transform; recursive space partitioning; parametrisation; model reduction;

   Abstract : The fuel consumption of a seagoing vessel is, through a combination of Box-Cox transforms and principal component analysis, reduced to a univariatefunction of the primary principle component with mean model error −3.2%and error standard deviation 10.3%. READ MORE

3. 2. The performance of inverse probability of treatment weighting and propensity score matching for estimating marginal hazard ratios

   University essay from Uppsala universitet/Statistiska institutionen

   Author : Jonatan Nåtman; [2019]
   Keywords : Monte Carlo simulations; propensity score; survival analysis; Cox model; censoring rate; sample size;

   Abstract : Propensity score methods are increasingly being used to reduce the effect of measured confounders in observational research. In medicine, censored time-to-event data is common. READ MORE

4. 3. Spacecraft dynamic analysis and correlation with test results : Shock environment analysis of LISA Pathfinder at VESTA test bed

   University essay from Luleå tekniska universitet/Rymdteknik

   Author : Beata Iwona Kunicka; [2017]
   Keywords : FEA FEM; finite element analysis; finite element method; mechanical analysis; structural analysis; dynamic analysis; computational dynamic analysis of structures; shock analysis; shock environment; shock test; shock test campaign; spacecraft dynamic analysis; MSC Nastran; MSC Patran; Dynaworks; Shock Response Spectrum; SRS; space engineering; space science and technology; mechanical engineering; structural engineering; analysis optimisation; analysis parametrisation; mechanical wave propagation; shock propagation; damping; hysteretic damping; viscous damping; structural damping;

   Abstract : The particular study case in this thesis is the shock test performed on the LISA Pathfinder satellite conducted in a laboratory environment on a dedicated test bed: Vega Shock Test Apparatus (VESTA). This test is considered fully representative to study shock levels produced by fairing jettisoning event at Vega Launcher Vehicle, which induces high shock loads towards the satellite. READ MORE

5. 4. Virtual Sensors for Combustion Parameters Based on In-Cylinder Pressure

   University essay from Linköpings universitet/Fordonssystem

   Author : Tobias Johansson; [2015]
   Keywords : CLCC; virtual sensors; combustion parameters; in-cylinder pressure; heat release; heat-release; heavy duty vehicle;

   Abstract : Typically the combustion in engines are open-loop controlled. By using an in-cylinder pressure sensor it is possible to create virtual sensors for closed-loop combustion control (CLCC). With CLCC it is possible to counteract dynamic effects as component ageing, fuel type and cylinder variance. READ MORE