Sökning: "multivariate calibration"

Visar resultat 16 - 20 av 37 avhandlingar innehållade orden multivariate calibration.

  1. 16. Development of Preprocessing Methods for Multivariate Sensor Data

    Författare :Tom Artursson; Corrado Di Natale; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In this work various aspects of data preprocessing are discussed. Preprocessing of data from multivariate sensor data systems is often necessary to extract relevant information or remove disturbances. Depending on the sensor type different preprocessing techniques have to be used. A number of important problems face the user e. LÄS MER

  3. 17. A new chemometrical method for nonlinear multivariate calibration and some examples of modelling in analytical chemistry : [some new dishes for the chemometrician's smörgåsbord]

    Författare :George Robertsson; Rasmus Bro; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytical Chemistry; analytisk kemi;

    Sammanfattning : .... LÄS MER

  4. 18. Processing and analysis of NMR data : Impurity determination and metabolic profiling

    Författare :Jenny Forshed; Sven P. Jacobsson; Jules L. Griffin; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantitative nuclear magnetic resonance spectrometry; qNMR; multivariate analysis; peak alignment; data fusion; Analytical chemistry; Analytisk kemi;

    Sammanfattning : This thesis describes the use of nuclear magnetic resonance (NMR) spectrometry as an analytical tool. The theory of NMR spectroscopy in general and quantitative NMR spectrometry (qNMR) in particular is described and the instrumental properties and parameter setups for qNMR measurements are discussed. LÄS MER

  5. 19. Robust Water Balance Modeling with Uncertain Discharge and Precipitation Data : Computational Geometry as a New Tool

    Författare :José-Luis Guerrero; Sven Halldin; Stefan Uhlenbrook; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Alpha shape; Convex hull; Depth function; Discharge; Hydrological models; Honduras; Model calibration; Parameter-value estimation; Precipitation; Rating curve; Robust; Robustness; Uncertainty estimation; Water resources.; Alfaform; avbördningskurva; djupfunktion; Honduras; hydrologiska modeller; konvext hölje; modellkalibrering; nederbörd; osäkerhetsskattning; parametervärdesskattning; robust; robusthet; vattenföring; vattenresurser; Hydrology; Hydrologi;

    Sammanfattning : Models are important tools for understanding the hydrological processes that govern water transport in the landscape and for prediction at times and places where no observations are available. The degree of trust placed on models, however, should not exceed the quality of the data they are fed with. LÄS MER

  7. 20. Multivariate characterization of paper machine wet-end chemistry using an electronic tongue

    Författare :Anders Carlsson; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Closed loop systems, seasonal variations in the composition of the pulp, shear forces and interdependence between many of the chemical variables are some of the factors that contribute to the complexity of wet-end chemistry. Multivariate methods are therefore often required to obtain an overview of the relations between variables in the wet end and variables affected by wet-end chemistry. LÄS MER