Sökning: "multivariate calibration"
Visar resultat 21 - 25 av 37 avhandlingar innehållade orden multivariate calibration.
21. Improving the Performance of Gas Sensor Systems with Advanced Data Evaluation, Operation, and Calibration Methods
Sammanfattning : In order to facilitate the widespread use of gas sensors, some challenges must still be overcome. Many of those are related to the reliable quantification of ultra-low concentrations of specific compounds in a background of other gases. LÄS MER
22. Optical Analysis of biological media - continuous wave diffuse spectroscopy
Sammanfattning : The main topic of this thesis is real-time quantification of relevant chromophores and light scattering elements in biological media. The presented methods and instrumentation are based on continuous wave (steady-state) optical measurements of (a) spatially-resolved diffuse reflectance from bulk media and (b) combined spatially-resolved and goniometric measurements of re-emitted light from thin samples. LÄS MER
23. On reflections of wood : wood quality features modelled by means of multivariate image projections to latent structures in multispectral images
Sammanfattning : Classifying logs and boards has an essential economic impact on the forest products industry. In a modern production chain, quality control and raw material specifications are essential to fulfill production system demands as well as end user demands. LÄS MER
24. Pricing Portfolio Credit Derivatives
Sammanfattning : This thesis consists of four papers on dynamic dependence modelling in portfolio credit risk. The emphasis is on valuation of portfolio credit derivatives. The underlying model in all papers is the same, but is split in two different sub-models, one for inhomogeneous portfolios, and one for homogeneous ones. LÄS MER
25. Minimal Problems and Applications in TOA and TDOA Localization
Sammanfattning : The central problem of this thesis is locating several sources and simultaneously locating the positions of the sensors. The measurements captured by the sensors are time of arrival (TOA), time difference of arrival (TDOA), unsynchronized TDOA, or received signal strength indication (RSSI), all a variation of distance measurement between sensors and sources. LÄS MER