Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"line spectra"”.
-
Sparse Modeling of Grouped Line Spectra
… on clustered parametric models for estimation of line spectra, when the spectral content of a signal source is assumed to exhibit some form of grouping. Different from previous parametric approaches, which generally require explicit knowledge of the model orders, this thesis exploits sparse …
-
Simultaneous multi-angle measurements of plasma turblence at HAARP
… turbulence effects. For the first time, plasma line spectra measured simultaneously in different spots of the interaction region displayed marked but contemporaneous differences dependent on the aspect angle of the HF pump beam and the pointing angle of the MUIR diagnostic radar. Outshifted …
-
Sonically induced narrowing of the NMR spectra of solids and other novel NMR techniques
… the sample. The same cannot be said about the spectra of solid samples. For these the absorptions are typically broad, featureless and yield little information directly. This situation may be further exacerbated by the characteristically long T1 values of nuclei bound within a solid lattice …
-
Long-pulse incoherent scatter probing of the F-region ionosphere at Arecibo
… range gate of the ionosphere, but the resulting spectra suffer from poor signal-to-noise and signal-to-clutter ratios. In contrast, the uncoded envelopes (0.5 ms and 1 ms durations) range-mix the electron density spectra within the transmitted pulse durations, reducing the effective range …
-
Studies of aspect angle dependence of plasma turbulence at HAARP
… ponderomotive plasma turbulence effects. Plasma line spectra exhibit a marked dependence on the aspect angle of the HF pump beam and the pointing of the MUIR diagnostic radar. Refraction is shown to play an important role in the observed plasma line spectral density as a function of zenith angle, …
-
Operationalisation of FT-NIRS based real-time monitoring for optimisation of anaerobic digestion
… to VFAs and using the relationships in the raw spectra behaviour to improve VFA build-up detection and speciation through an understanding of their interaction with other physicochemical parameters. The models developed would be helpful for the industrial monitoring of AD plants. Independent …
-
Core-valence-valence auger spectra of the simple metals
… study of the core-valence-valence (CVV) Auger line shapes for the simple metals, Li, Be, Na, Mg, and AI, is presented. Calculations of these line shapes are performed with a static many-body model which treats the (static) screening of a core hole by conduction electrons with a phenomenological …
-
Development and manufacture of novel amorphous Itraconazole drug products using quality by design principles
… using continuous manufacture with novel in-line process analytical technology (PAT) to monitor quality. The solubility parameter () of ITZ and polymers, Kollidon® VA64 (KOL), hydroxypropylmethylcellulose acetate succinate (HPMCAS) and polyvinylacetate (PVA) were screened using group …