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New techniques in Fourier transform nuclear magnetic resonanceMareci, Thomas Harold January 1982 (has links)
New techniques in Fourier transform nuclear magnetic resonance spectroscopy are introduced with chemical applications to the study of molecules in the liquid state. Recently a theoretical description of magnetic resonance in terms of single transition operators has been introduced which provides a geometric interpretation of the behaviour of a spin system. This formalism is developed further and extended to the general description of a system of nonequivalent spin-1/2 nuclei. Operator combinations are introduced which allow extension of the convenient geometric representation to the concerted behaviour of coupled spins. The operator formalism is applied to the excitation and detection of multiple quantum transitions, providing a description of the processes in terms of rotating vectors. The process of coherence transfer in two-dimensional Fourier transform experiments is studied in detail and single transition operators are used to derive a general expression for the tip angle dependence of the detection process. A method of discriminating the sense of precession of double quantum coherence is presented and applied to the correlation of chemical shifts of carbon-13 spins in natural abundance. A new technique is presented for the correlation of chemical shift information in coupled proton spin systems in which excitation and indirect detection of double quantum transitions is used to assign coupling patterns in complex spectra. The tip angle dependence of the detection process is used to suppress all but direct correlation of spins. Methods for the measurement of heteronuclear coupling constants in proton spectra are introduced which discriminate the heteronuclear satellites from the parent proton resonance. The technique provides a sensitivity advantage over direct measurement of coupling in the heteronuclear spectrum. Ambiguities are encountered when the protonproton and proton-heteronuclear coupling constants are of the same order of magnitude. This problem is overcome by extension of the basic experiment to its two-dimensional analogue.
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Infrared studies on solid hydrogen, deuterium and hydrogen-deuteride using Fourier-transform spectroscopy /Lee, Sang Young, January 1900 (has links)
Thesis (Ph. D.)--Ohio State University, 1987. / Includes vita. Includes bibliographical references (leaves 208-211). Available online via OhioLINK's ETD Center.
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Detection of frequency-hopped signals embedded in non-stationary interferenceLayfield, Steven C. January 2008 (has links) (PDF)
Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, December 2008. / Thesis Advisor(s): Robertson, R. Clark. "December 2008." Description based on title screen as viewed on January 29, 2009. Includes bibliographical references (p. 35). Also available in print.
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A fourier transform infrared spectroscopy study of hydrogen interaction with metal-organic-frameworks.Mayer, Daniel A. January 2007 (has links)
Thesis (M.S.)--Rutgers University, 2007. / "Graduate Program in Physics and Astronomy." Includes bibliographical references (p. 81-83).
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Measurement of forest ecosystem-atmosphere exchange of 8¹³C-CO₂ using Fourier transform infrared spectroscopy and disjunct eddy covarianceCambaliza, Maria Obiminda L. January 2010 (has links) (PDF)
Thesis (Ph. D.)--Washington State University, May 2010. / Title from PDF title page (viewed on June 10, 2010). "Department of Civil and Environmental Engineering." Includes bibliographical references.
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Study of mechanically aligned polystyrene thin films by FTIR /Wong, Kin Chiu. January 2006 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2006. / Includes bibliographical references (leaves 71-72). Also available in electronic version.
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The spectroscopy of polyatomic moleculesGriffiths, Peter R. January 1967 (has links)
No description available.
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Infrared studies on solid hydrogen, deuterium and hydrogen-deuteride using Fourier-transform spectroscopy /Lee, Sang Young January 1987 (has links)
No description available.
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The fast Fourier transform and the spectral analysis of stationery time series /Nobile, Marc January 1979 (has links)
No description available.
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Acoustic technique in the diagnosis of voice disorders /Kulinski, Christina. January 2004 (has links)
Thesis (M.S.)--University of Hawaii at Manoa, 2004. / Leaves 86-90 lacking. Includes bibliographical references (leaves 91-93).
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