Search for dissertations about: "radiometry"

Showing result 1 - 5 of 23 swedish dissertations containing the word radiometry.

  2. 1. Ground based measurements of upper atmospheric CO and H2O using microwave radiometry

    Author : Peter Forkman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mesosphere; carbon monoxide; microwaves; radiometry; remote sensing; water vapour;

    Abstract : Long series of continuous measurements of middle and upper atmospheric constituents are needed to be able to understand the anthropogenic influence on the atmosphere. Phenomena like ozone depletion and the enhanced greenhouse effect are examples where the role of human activities has to be well investigated in order to make the right decisions of necessary changes in our way of life. READ MORE

  4. 2. Microwave remote sensing of ozone and other species in the middle atmosphere

    Author : Patrick Eriksson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ozone layer; ground-based observation; middle atmosphere; microwaves; profile retrieval; radiative transfer; limb sounding; radiometry; remote sensing;

    Abstract : .... READ MORE

  5. 3. Development of sensitive EPR dosimetry methods

    Author : Håkan Gustafsson; Eva Lund; Anders Lund; Dag Rune Olsen; Linköpings universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Electron paramagnetic resonance EPR ; Formic acids; pharmacology; Lithium; Nickel; Radiometry; Rhodium; Pharmaceutical chemistry; Farmaceutisk kemi;

    Abstract : Electron paramagnetic resonance (EPR) dosimetry using the well established dosimeter material alanine is a generally accepted dosimetric method for measurements of high absorbed doses. Alanine EPR dosimetry is however not sensitive enough for high precision measurements of low (< 5 Gy) absorbed doses using reasonably measurement times and small dosimeters. READ MORE

  6. 4. Surface Characterization using Radiometric and Fourier Optical Methods

    Author : Peter Hansson; Arne Roos; Mikael Sjödahl; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; Radiometry; Fourier Optics; Surface Characterization; Topography; Reflectance; Color; Paper; Printing; Print quality; Gloss; Light scattering; Shape from shading; Photometric stereo; Optical motion compensation; Filtering; Wiener filter; Lamberts law; Image analysis; Image processing; Machine vision; Teknisk fysik; Engineering physics; Teknisk fysik;

    Abstract : This thesis treats static and dynamic surface characterization using radiometric and Fourier optical methods. A Fourier optical method has been developed for real time image processing in paper production and printing applications. READ MORE

  7. 5. Inversion of microwave limb sounding observations of the atmosphere by a neural network technique

    Author : Carlos Jimenez Sanchez; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; retrievals; radiometry; inversion problem; neutal networks; atmosphere; Odin; limb sounding; optimal estimation;

    Abstract : .... READ MORE