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.
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Showing 1 to 8 of 8 for “"reduced scattering coefficient"”.
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Wavelength tuneable frequency domain photon migration spectrometer for tissue-like media
… 10%. The instrument estimates the absorption and reduced scattering coefficients with a precision of 3% and 6%, respectively. Optical properties of Intralipid were measured from 710-850 nm in the therapeutic window. The results were compared with published data measured by other methods and …
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Applying Mechanistic Understanding of Optical Absorption and Scattering Phenomena to Enhance the Spectroscopic Analyses of Pharmaceutical Materials
… spectroscopy to separate absorption and scattering behaviors when NIR light interacts with pharmaceutical materials. The separated absorption and scattering were utilized to enhance mechanistic understanding of NIR diffuse reflectance spectroscopy and improve practical spectroscopic …
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A Method for Characterizing the Properties of Industrial Foams
… were varied include the layer thickness, the scattering coefficient, and the asymmetry parameter. Layer thicknesses between 8.5 mm and 18 cm were considered. Values of the scattering coefficient ranged from about 600 m-1 to 14000 m-1, while the asymmetry parameter varied between 0 and 1. A …
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Photon migration in highly scattering media as a measurement technique on automated cow milking systems
An investigation has been performed on the scattering properties of cow's milk. The main aim of the study has been to determine the usefulness of photon migration techniques in the measurement of milk components, and the extent to which they can be applied. Online applications are also …
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Detecting cervical dysplasia with quantitative spectroscopic imaging
… show measuring the per-patient normalized reduced scattering coefficient alone accurately performs the distinction. This is in good agreement with our previous contact-probe study of HSIL. Due to improved accuracy, QSI used as an adjunct to colposcopy can potentially reduce the number of …
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Optical methods for monitoring biological parameters of phototropic microorganisms during cultivation
… of interest are often undiluted and highly scattering and do not adhere to Beer-Lambert's law. Due to the fluorescence properties of chlorophyll, fluorescence spectroscopy techniques including fluorescence lifetime imaging and single photon counting could be applied to provide images of the …
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Optical Techniques for Fruit Firmness Assessment
… a sample’s optical properties (absorption and reduced scattering coefficients) and optical parameters respectively. The high-speed MSI system was designed to capture images of fruit using a high-resolution complementary metal–oxide–semiconductor camera, 12.5 mm lens, and discrete lasers …
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Intra-operative Assessment of Breast Tumor Margins Using Diffuse Reflectance Spectroscopy
… ratio of [β-carotene] to the wavelength-averaged reduced scattering coefficient from 450-600nm (<μs'>) being significantly higher in the negative margins of high-density patients (p=0.017 and p=0.038, respectively). We originally hypothesized that increased [β-carotene] would be associated with an …