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 14 of 14 for “"Scattering Measurement"”.
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Development of a frequency-domain electromagnetic scattering measurement system
… fields in the Transient Electromagnetic Scattering Range at the Naval Postgraduate School. The new system employs a stepped- frequency Cw waveform and utilizes an HP-8510B network analyzer as an RF front- end and a coherent receiver. A pair of AEL H1498 antennas was installed to cover a …
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Light Scattering Measurement of Phospholipid Microvesicle Membrane Fusion Kinetics
… function, as measured by quasi-elastic light scattering and Koppel's method of cumulants, are expressed in terms of moments of the size density function of single-walled hollow spherical scatterers. An equation governing the evolution of fusing particles is derived and solved for simple cases. …
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Unbiased Filtered Rayleigh Scattering Measurement Model for Aerodynamic Flows
The filtered Rayleigh scattering (FRS) optical diagnostic has become an attractive technique for advanced aerodynamic measurements. The appeal of FRS is that it can simultaneously quantify density, temperature, and vector velocity. Additionally, it is entirely non-intrusive to the flow since the …
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Novel XYZ scanner-based radiation and scattering measurement techniques for antena diagnostics and imaging applications
… experimental results in the fields of antenna measurement and inverse scattering for electromagnetic imaging applications that can be applied to different fields such as security (personnel screening, explosive detection), non-invasive inspection and structure analysis (fatigue and crack …
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Parity-Violating Elastic Electron Nucleon Scattering: Measurement of the Strange Quark Content of the Nucleon and Towards a Measurement of the Weak Charge of the Proton
… parity violation in elastic electron proton scattering in order to measure properties of the nucleon. Both experiments make use of the high quality, highly polarized electron beam available at Thomas Jefferson National Accelerator Facility. Q<sub>weak</sub> will measure the weak mixing angle, …
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An experimental investigation of fuel spray vapor phase characterization
… extinction technique consists of three separate measurements: a visible light angular scattering measurement, a visible light line-of-sight extinction measurement and an infrared line-of-sight extinction measurement. Using this technique, vapor flux along with other spray parameters such as mean …
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Experimental investigations of the pretransition behavior near the nematic-smectic A phase transition
… experiment is a conventional Rayleigh light scattering measurement performed with excellent temperature control of the liquid crystal. The second is a novel magneto-optic experiment which uses an external magnetic field to distort the liquid crystal and a sensitive optical interference …
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Analysis of JLab E12-14-012 Ti(e,e′p) Data and Determination of the Ti Spectral Function
… This thesis summarizes the exclusive electron scattering measurement of the Jefferson Lab E12-14-012 experiment. The E12-14-012 experiment goals are to explore the Ti(e,e′p) and Ar(e,e′p) reactions in a wide range of kinematics in order to determine the spectral function of protons and neutrons …
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Raman scattering in heavy rare earth metals
Inelastic light scattering spectra were measured in MBE grown single crystal films of Dysprosium, Erbium and yttrium. In order to measure the weak Raman signals of metals a single grating monochromator was designed and constructed and added to an existing double grating monochromator to improve the …
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Application of electromagnetic scattering reduction techniques for small unmanned aerial vehicles
… development and application of electromagnetic scattering reduction techniques, designs, and materials to small, relatively low-cost Unmanned Aerial Vehicles (UAVs). The application of electromagnetic scattering reduction methodologies to small UAVs poses a unique challenge over aircraft not …
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Limb scatter measurements of high altitude cloud distributions
… (280 nm) to the near infrared (810 nm). The limb scattering measurement technique allows OSIRIS to collect information on the vertical profile of atmospheric chemical and particle composition at a resolution of approximately 2km with nearly global daily coverage. In this work, a technique …
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Rheology and Microstructure of Filled Polymer Melts
… melt mechanical properties and small angle X-ray scattering measurement of the particle microstructure. The particle microstructure probed with scattering is related to bulk flow mechanics to determine the origin of slow dynamics in these complex dispersions: whether a gel or glass transition or a …
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Three Dimensional Laser Diagnostics for Turbulent Flows and Flames
… TC method and validated by a simultaneous 2D Mie scattering measurement. The results showed that the flame topography obtained from TC and the Mie scattering agreed qualitatively, but quantitative difference on the order of millimeter was observed between these two methods. Such difference was …
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Spatial light interference microscopy and applications
… phase shift and its dry mass enables cell growth measurements in mammalian cells. The SLIM/fluorescence multimodal imaging allows for cell cycle dependent growth measurement, revealing that the G2 phase exhibits the highest growth rate and an exponential trend. Due to the micron-scale coherence …