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Construction and development of a nuclear magnetic resonance detection systemGoodwin, Charles D. 03 June 2011 (has links)
The major work involved is the debugging procedure on the Varian Model V-21003 electromagnet, power supply and spectrometer and the design and construction of supporting structure to house the various pieces of apparatus which were required to complete the system.Equipment which was not immediately available was then designed and constructed, with the final step being the testing. of the entire system for its integrity.Adjustments to each component was then carried out to obtain the best signal possible, noting the various changes caused by the condition and setting of each section of the system.
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A computer analysis of NMR-determined interatomic distances in steontium formateDick, Roger L. 03 June 2011 (has links)
This thesis comprises a computer analysis of NMR-determined interatomic distance in strontium formate dihydrate. The computer program is designed to locate the hydrogen atoms associated with the water molecules in strontium formate dihydrate. The bond length of the oxygen-hydrogen bond is assumed to be fixed. The program varies the hydrogen separation, plotting total proton interaction against the hydrogen separation distance. Using Van Vleck's second moment theory, the hydrogen-hydrogen distances were determined.. The value of the second moment of the NMR absorption curve is 24.6 gauss2, obtained from investigation by Dr. D. E. Koltenbah. The result of this thesis is that the proton separation is 1.47± .02 A. This result is found to be close enough to other studies to conclude that the program analysis is essentially sound.
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Development of new approaches to NMR data collection for protein structure determinationCoggins, Brian E. 10 May 2007 (has links)
Multidimensional nuclear magnetic resonance (NMR) spectroscopy has become
one of the most important techniques available for studying the structure and function of
biological macromolecules at atomic resolution. The conventional approach to
multidimensional NMR involves the sampling of the time domain on a Cartesian grid
followed by a multidimensional Fourier transform (FT). While this approach yields high
quality spectra, as the number of dimensions is increased the time needed for sampling on
a Cartesian grid increases exponentially, making it impractical to record 4-D spectra at
high resolution and impossible to record 5-D spectra at all.
This thesis describes new approaches to data collection and processing that make
it possible to obtain spectra at higher resolution and/or with a higher dimensionality than
was previously feasible with the conventional method. The central focus of this work has
been the sampling of the time domain along radial spokes, which was recently introduced
into the NMR community. If each radial spoke is processed by an FT with respect to
radius, a set of projections of the higher-dimensional spectrum are obtained. Full spectra
at high resolution can be generated from these projections via tomographic
reconstruction. We generalized the lower-value reconstruction algorithm from the
literature, and later integrated it with the backprojection algorithm in a hybrid
reconstruction method. These methods permit the reconstruction of accurate 4-D and 5-
D spectra at very high resolution, from only a small number of projections, as we
demonstrated in the reconstruction of 4-D and 5-D sequential assignment spectra on
small and large proteins. For nuclear Overhauser spectroscopy (NOESY), used to
measure interproton distances in proteins, one requires quantitative reconstructions. We
have successfully obtained these using filtered backprojection, which we found was
equivalent to processing the radially sampled data by a polar FT. All of these methods
represent significant gains in data collection efficiency over conventional approaches.
The polar FT interpretation suggested that the problem could be analyzed using
FT theory, to design even more efficient methods. We have developed a new approach to
sampling, using concentric rings of sampling points, which represents a further
improvement in efficiency and sensitivity over radial sampling. / Dissertation
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Force detection of nuclear magnetic resonance using double-torsional micro-oscillatorsChabot, Michelle Diane. January 2001 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2001. / Vita. Includes bibliographical references. Available also from UMI/Dissertation Abstracts International.
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Ultrafast coherent transients & excited state dynamics in gases and solidsBromberg, J. Philip, McConnell, Harden M. January 1959 (has links)
Thesis (Masters)--California Institute of Technology, 1959. / Advisor names found in the Acknowledgments pages of the thesis. Title from home page. Viewed 02/09/10. Includes bibliographical references.
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Structure of the [beta] subunit of translation initiation factor 2 from the Archaeon Methanococcus jannaschii by NMR a representative of the eIF2[beta]/eIF5 family of proteins /Cho, Seongeun. January 2002 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2002. / Vita. Includes bibliographical references. Available also from UMI Company.
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Construction of a low temperature nuclear magnetic resonance force microscopeLee, Yong J. 28 August 2008 (has links)
Not available / text
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Force detection of nuclear magnetic resonance using double-torsional micro-oscillatorsChabot, Michelle Diane 25 March 2011 (has links)
Not available / text
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Design options for nuclear magnetic resonance (NMR) sensorsJain, Karishma January 2013 (has links)
No description available.
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A portable NMRLee, Jaehyuk January 2011 (has links)
No description available.
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