Sökning: "Correction"
Visar resultat 6 - 10 av 693 avhandlingar innehållade ordet Correction.
6. Corrections for improved quantitative accuracy in SPECT and planar scintigraphic imaging
Sammanfattning : A quantitative evaluation of single photon emission computed tomography (SPECT) and planar scintigraphic imaging may be valuable for both diagnostic and therapeutic purposes. For an accurate quantification it is usually necessary to correct for attenuation and scatter and in some cases also for septal penetration. LÄS MER
7. Multichannel Audio Signal Processing : Room Correction and Sound Perception
Sammanfattning : This thesis concerns and combines multichannel sound reproduction, digital room correction, audio signal processing, and human sound perception. It investigates perceived sound quality and new methods to improve timbral and spatial fidelity of loudspeaker-based multichannel sound reproduction in reverberant environments. LÄS MER
8. Improving Peripheral Vision Through Optical Correction and Stimulus Motion
Sammanfattning : The loss of central vision subsequent to macular disease is often extremely debilitating. People with central field loss (CFL) must use other peripheral areas of the retina in order to see; areas with inferior resolution capacity, which are also affected by off-axis optical errors. LÄS MER
9. Advances in quantitative emission tomography : development and analysis of methods for validation and correction
Sammanfattning : The nuclear medicine imaging techniques SPECT and PET are sensitive tools in mapping various physiological and biochemical processes in vivo. This work was devoted to investigations of methodological and physical properties of the SPECT technique as well as developing methods for validation and correction. LÄS MER
10. Correction of unilateral posterior crossbite in the mixed dentition : studies of treatment effects, stability and cost-effectiveness
Sammanfattning : Enkelsidigt korsbett är en av de vanligaste bettavvikelserna i växel-bettet, dvs. i de åldrar då barnets tänder byts ut från mjölktänder till permanenta tänder. Korsbett innebär att överkäkens och un-derkäkens bredd inte passar ihop när man biter samman käkarna. LÄS MER