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Showing 1 to 20 of 413 for “"EPR"”.
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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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Rapid-Scan EPR and Imaging
<p>EPR imaging at low frequency is a powerful tool to obtain important biological information <em>in vivo</em> in a non-invasive way. Properties of nitroxide and trityl radical imaging reagents have been studied. Developments in rapid scan imaging techniques are reported that improve efficiency of …
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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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Very High Frequency EPR: Instrument and Applications
Most Electron Paramagnetic Resonance (EPR, also known as ESR or EMR) experiments are performed at conventional 9 GHz or 35 GHz frequency. But there are numerous situations in which a large increase in the microwave frequency (and/or magnetic field) will result in substantial increase in the …
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Moessbauer and Epr Studies of Iron-Containing Proteins
Made available in DSpace on 2015-05-13T15:22:18Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 8009166.PDF: 3862036 bytes, checksum: 1d854720feef7da8537971fbe7997810 (MD5) Previous issue date: 1979
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Mössbauer and EPR studies of iron-containing proteins
… (MS) and electron paramagnetic resonance (EPR). Both methods are sensitive probes of the electronic structure of the iron at the active site of the protein. In all cases studied, the observed spectra can be explained in terms of a spin Hamiltonian, which describes the ground electronic spin …
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Applications of EPR with an Emphasis on Tau Fibril Structure
… been studied by electron paramagnetic resonance (EPR) for nearly 70 years. With continual development and enhancement of EPR techniques, questions have arisen regarding optimum method selection for a given sample based on its properties. In this work, radiation defects, natural lattice defects, …
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COMPUTER APPLICATIONS IN QUANTITATIVE EPR SPECTROSCOPY OF METALLOPROTEINS (FERRITIN, APOFERRITIN, IRON)
… examines the use of computers in quantitative EPR spectroscopy. The computers used ranged from hand held calculators to large main frame systems. Applications discussed are protein assay calculations, an EPR minicomputer interface and software system and the modification of an existing EPR …
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Public, Producer, Private Partnerships and EPR systems in Australian Wheat Breeding
… focuses on the Australian End Point Royalty (EPR) system for wheat and addresses four principal questions: (1) How was the Australian system created and how does it work? (2) How do public, producer and private ownership of breeding programs affect the pricing of varieties? (3) How do EPR …
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Electron Spin Echo and Millimeter Wave Epr Studies of Disordered Solids
… wave electron paramagnetic resonance (cw EPR) techniques are better suited to study strong short range ($$35 GHz) experiments should result in enhanced resolution or allow for more accurate determinations of the zero-field splitting energies in a high spin system. Single crystal spectra as …
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The Determination of Nuclear Quadrupole Coupling Constants From Powder Epr Spectra
Made available in DSpace on 2014-12-13T20:09:53Z (GMT). No. of bitstreams: 1 7624153.pdf: 3061758 bytes, checksum: 23a38d9cd2eb291d85e12bd42b4f0d89 (MD5) Previous issue date: 1976
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A single-crystal EPR study of radiation-induced defects in selected silicates
… single-crystal electron paramagnetic resonance (EPR) studies on radiation-induced defects in selected silicate minerals, including apophyllites, prehnite, and hemimorphite, not only providing new insights to mechanisms of radiation-induced damage in minerals but also having direct relevance to …
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S-band electron spin echo and multifrequency EPR investigations of disordered solids
Electron spin echo (ESE) methods are particularly useful for measuring weak electron-nuclear couplings in paramagnetic solids. Frequencies that correspond to nuclear transitions are manifested in the electron spin echo envelope modulation (ESEEM) patterns recorded from a sample. Information …
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