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 12 of 12 for “"Rapid scan"”.
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Rapid-Scan EPR and Imaging
… reagents have been studied. Developments in rapid scan imaging techniques are reported that improve efficiency of experiments and user-friendliness of software.</p> <p>Relaxation and signal-to-noise ratio (S/N) in pulse experiments on trityl radicals were measured at frequencies between 400 …
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X-Band Rapid-Scan EPR
<p>The advantages of rapid-scan EPR relative to CW and pulse techniques for samples with long longitudinal relaxation time T<sub>1</sub> (N<sub>s</sub><sup>0</sup> defects in diamond, N@C<sub>60</sub>, and amorphous hydrogenated silicon), heterogeneous samples (crystalline 1:1 …
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Dinitroxides in Rapid Scan Electron Paramagnetic Resonance Imaging
… parameter in understanding disease behavior. Rapid Scan (RS) electron paramagnetic resonance (EPR) offers a unique, non-invasive tool for investigation of these so-called microenvironments through EPR Imaging (EPRI). Research into advancement of EPRI falls into many categories. Not least among …
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Rapid Scan Electron Paramagnetic Resonance (EPR) and Digital EPR Development
<p>Rapid scan electron paramagnetic resonance (EPR) was developed in the Eaton laboratory at the University of Denver. Applications of rapid scan to wider spectra, such as for immobilized nitroxides, spin-labeled proteins, irradiated tooth and fingernail samples were demonstrated in this …
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Instrument and Application Development in Saturation Recovery and Rapid Scan Electron Paramagnetic Resonance
<p>Enhanced signal sensitivity by the use of Rapid Scan (RS) electron paramagnetic resonance (EPR), a technique that allows for much faster magnetic field scans than traditional field-swept techniques, has facilitated improved data acquisition for many types of samples. For example, irradiated …
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Investigation of the Structure and Kinetics of Heme-Containing Proteins Using Magnetic Circular Dichroism and Rapid-Scan, Stopped-Flow Spectroscopy
… UV-visible (UV-Vis) electronic absorption and rapid-scan, stopped-flow spectroscopies were utilized to determine reaction mechanisms and kinetics data. Due to the chromophore properties of heme-containing proteins, magnetic circular dichroism (MCD) spectrophotometry was used to determine …
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Development of Low Frequency Electron Paramagnetic Resonance Methods and Instrumentation for Biological Applications
… <p>At low spin concentrations, the rapid scan background signal is often many times larger than the EPR signal of interest. To help remove the background contribution, a data acquisition procedure that takes advantage of a cross-loop resonator and bipolar power supplies was developed …
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Far infared reflectance along the C-axis of the charge stripe superconductor La1.875Ba0.125CuO4.
… temperature(3K) were performed using a Bruker rapid scan spectrometer and a Martin-Puplett polarizing spectrometer. It was found that when polarized light reflected from a sample the Bruker rapid scan spectrometer has a low frequency cutoff of lOcm-1 while the Martin-Puplett polarizing …
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Developing Time-Resolved Synchrotron Infrared Spectroscopy for Spectroelectrochemical Measurements
… irreversible electrocatalytic processes with rapid scan FTIR in reflection mode. The thesis demonstrates application of SIR-based rapid scan FTIR to spatially map catalytic activity on heterogenous PtNi electrode and provides proof-of-principle for its capability for combinatorial screening …
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Applications of EPR with an Emphasis on Tau Fibril Structure
… proteins were analyzed using CW, pulse, and rapid scan EPR to compare methods. Studies of solid BDPA, E' in quartz, N<sub>s</sub><sup>0</sup> in diamond, and a-Si:H, showed that rapid scan could overcome many obstacles presented by other techniques, cementing rapid scan as an effective …
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A novel low-dose approach to active detection of shielded high-Z materials
… and optimization of a new type of low-dose, rapid-scan, transmission radiography imaging system designed to detect the presence of special nuclear material in cargo. This thesis explores the processes, reactions, and detection methods that may be used to develop a transmission imaging system …
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FTIR Spectroscopy of the photophobic sensory rhodopsin II/transducer complex from natronabacterium pharaonis
… Messungen bei Raumtemperatur als auch bei step-scan Messungen zuverlässige Daten zu erhalten, wurden die Untersuchungen auf niedrige Temperaturen (K-Intermediate) und rapid-scan Messungen (M2-Intermediat) beschränkt. <br>Von Hauptinteresse war das Aufspüren von Konformationsänderungen, die beim …