subject:(Resonance)

Delft University of Technology

1. Plooij, M.C. Using a resonant mechanism to reduce energy consumption in robotic arms:.

Degree: 2011, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:344231b2-6191-4548-8f05-5c0579de4813

This paper presents the idea to use a resonant mechanism to reduce energy consumption in robotic arms with repetitive tasks, such as pick- and place tasks. Advisors/Committee Members: Van der Helm, F.C.T., Wisse, M..

Subjects/Keywords: resonance

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APA (6^th Edition):

Plooij, M. C. (2011). Using a resonant mechanism to reduce energy consumption in robotic arms:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:344231b2-6191-4548-8f05-5c0579de4813

Chicago Manual of Style (16^th Edition):

Plooij, M C. “Using a resonant mechanism to reduce energy consumption in robotic arms:.” 2011. Masters Thesis, Delft University of Technology. Accessed July 22, 2019. http://resolver.tudelft.nl/uuid:344231b2-6191-4548-8f05-5c0579de4813.

MLA Handbook (7^th Edition):

Plooij, M C. “Using a resonant mechanism to reduce energy consumption in robotic arms:.” 2011. Web. 22 Jul 2019.

Vancouver:

Plooij MC. Using a resonant mechanism to reduce energy consumption in robotic arms:. [Internet] [Masters thesis]. Delft University of Technology; 2011. [cited 2019 Jul 22]. Available from: http://resolver.tudelft.nl/uuid:344231b2-6191-4548-8f05-5c0579de4813.

Council of Science Editors:

Plooij MC. Using a resonant mechanism to reduce energy consumption in robotic arms:. [Masters Thesis]. Delft University of Technology; 2011. Available from: http://resolver.tudelft.nl/uuid:344231b2-6191-4548-8f05-5c0579de4813

University of Alberta

2. Saha, Aditya. Stochastic resonance in nanoscale systems.

Degree: PhD, Department of Physics, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/1g05fc86s

► This thesis considers the possibility of stochastic resonance (SR) in the following nanoscale systems: (i) hard-threshold devices; (ii) averaging structures of carbon nanotubes (CNTs); (iii)… (more)

Subjects/Keywords: Stochastic resonance

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APA (6^th Edition):

Saha, A. (2011). Stochastic resonance in nanoscale systems. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/1g05fc86s

Chicago Manual of Style (16^th Edition):

Saha, Aditya. “Stochastic resonance in nanoscale systems.” 2011. Doctoral Dissertation, University of Alberta. Accessed July 22, 2019. https://era.library.ualberta.ca/files/1g05fc86s.

MLA Handbook (7^th Edition):

Saha, Aditya. “Stochastic resonance in nanoscale systems.” 2011. Web. 22 Jul 2019.

Vancouver:

Saha A. Stochastic resonance in nanoscale systems. [Internet] [Doctoral dissertation]. University of Alberta; 2011. [cited 2019 Jul 22]. Available from: https://era.library.ualberta.ca/files/1g05fc86s.

Council of Science Editors:

Saha A. Stochastic resonance in nanoscale systems. [Doctoral Dissertation]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/1g05fc86s

Oregon State University

3. Nail, James Harold. A method for calculation of group-averaged resonance parameters.

Degree: MS, Mechanical and Industrial Engineering, 1968, Oregon State University

URL: http://hdl.handle.net/1957/46783

► A method of treating resonance captures for few energy group calculations is developed using the Narrow Resonance-Infinite Absorber approximation to the resonance integral. The application… (more)

▼ A method of treating resonance captures for few energy group calculations is developed using the Narrow Resonance-Infinite Absorber approximation to the resonance integral. The application of this method is not restricted to this approximation, however, as other approximations to the resonance integral could also be used. The approach presented defines average parameters based on assuming that both the total dilute resonance integral and the total effective resonance integral are the sums over the individual resonances in the energy range under consideration. It is shown then that if the effective resonance integral equation for a single average resonance has the same functional form as the single resonances using the above definition for the total dilute resonance integral, then all parameters have been determined. The factor remaining to be calculated from these definitions is the averaged resonance peak height. This parameter, which is also in the form of a sum over the individual resonances, is then studied in some detail to see if any simpler form can be found. The first approach is to examine several simple cases representing basic types of resonance size combinations using only two resonances. These studies lead to considering several simplifications to the equation for the average resonance peak height, including a series form, a harmonic mean form, and several series corrections to harmonic mean. The range of applicability is examined and it is shown that none of these forms has universal applicability. Upon generalizing these approximations to include more resonances, several more forms based on correcting the mean value are postulated. Also based on this work, a functional form requiring curve fitting techniques is suggested. This curve fitting approach is not pursued here, however. These generalized equations for N resonances are applied to the resonances of several real isotopes. It is shown that the assumptions made in developing the approximations based on two resonances and then expanded to N resonances can be correlated with the results of applying these equations to the more complicated case of many resonances. This then forms a basis for predicting the behavior of group-averaged resonance parameters. Advisors/Committee Members: Robinson, Alan H. (advisor).

Subjects/Keywords: Resonance

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APA (6^th Edition):

Nail, J. H. (1968). A method for calculation of group-averaged resonance parameters. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/46783

Chicago Manual of Style (16^th Edition):

Nail, James Harold. “A method for calculation of group-averaged resonance parameters.” 1968. Masters Thesis, Oregon State University. Accessed July 22, 2019. http://hdl.handle.net/1957/46783.

MLA Handbook (7^th Edition):

Nail, James Harold. “A method for calculation of group-averaged resonance parameters.” 1968. Web. 22 Jul 2019.

Vancouver:

Nail JH. A method for calculation of group-averaged resonance parameters. [Internet] [Masters thesis]. Oregon State University; 1968. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/1957/46783.

Council of Science Editors:

Nail JH. A method for calculation of group-averaged resonance parameters. [Masters Thesis]. Oregon State University; 1968. Available from: http://hdl.handle.net/1957/46783

University of British Columbia

4. Berghofer, David. The 12C(p,y)13N reaction .

Degree: 1974, University of British Columbia

URL: http://hdl.handle.net/2429/18685

► The ninety degree yield curve for the ¹²C(p,Ƴ) ¹³N reaction was examined for proton energies (Ep ) between 14 MeV and 24.4 MeV using a… (more)

Subjects/Keywords: Resonance

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APA (6^th Edition):

Berghofer, D. (1974). The 12C(p,y)13N reaction . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/18685

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Berghofer, David. “The 12C(p,y)13N reaction .” 1974. Thesis, University of British Columbia. Accessed July 22, 2019. http://hdl.handle.net/2429/18685.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Berghofer, David. “The 12C(p,y)13N reaction .” 1974. Web. 22 Jul 2019.

Vancouver:

Berghofer D. The 12C(p,y)13N reaction . [Internet] [Thesis]. University of British Columbia; 1974. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/2429/18685.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Berghofer D. The 12C(p,y)13N reaction . [Thesis]. University of British Columbia; 1974. Available from: http://hdl.handle.net/2429/18685

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University

5. Jeltema, Jeffrey Andrew. Adaptive resonance tuning.

Degree: MS, Department of Mechanical Engineering, 2005, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:33617

Subjects/Keywords: Resonance

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APA (6^th Edition):

Jeltema, J. A. (2005). Adaptive resonance tuning. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:33617

Chicago Manual of Style (16^th Edition):

Jeltema, Jeffrey Andrew. “Adaptive resonance tuning.” 2005. Masters Thesis, Michigan State University. Accessed July 22, 2019. http://etd.lib.msu.edu/islandora/object/etd:33617.

MLA Handbook (7^th Edition):

Jeltema, Jeffrey Andrew. “Adaptive resonance tuning.” 2005. Web. 22 Jul 2019.

Vancouver:

Jeltema JA. Adaptive resonance tuning. [Internet] [Masters thesis]. Michigan State University; 2005. [cited 2019 Jul 22]. Available from: http://etd.lib.msu.edu/islandora/object/etd:33617.

Council of Science Editors:

Jeltema JA. Adaptive resonance tuning. [Masters Thesis]. Michigan State University; 2005. Available from: http://etd.lib.msu.edu/islandora/object/etd:33617

University of Arizona

6. Hamill, Patrick James, 1936-. A UNIFIED THEORY OF ORBITAL AND ROTATIONAL RESONANCES .

Degree: 1971, University of Arizona

URL: http://hdl.handle.net/10150/287764

Subjects/Keywords: Resonance.

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APA (6^th Edition):

Hamill, Patrick James, 1. (1971). A UNIFIED THEORY OF ORBITAL AND ROTATIONAL RESONANCES . (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/287764

Chicago Manual of Style (16^th Edition):

Hamill, Patrick James, 1936-. “A UNIFIED THEORY OF ORBITAL AND ROTATIONAL RESONANCES .” 1971. Doctoral Dissertation, University of Arizona. Accessed July 22, 2019. http://hdl.handle.net/10150/287764.

MLA Handbook (7^th Edition):

Hamill, Patrick James, 1936-. “A UNIFIED THEORY OF ORBITAL AND ROTATIONAL RESONANCES .” 1971. Web. 22 Jul 2019.

Vancouver:

Hamill, Patrick James 1. A UNIFIED THEORY OF ORBITAL AND ROTATIONAL RESONANCES . [Internet] [Doctoral dissertation]. University of Arizona; 1971. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/10150/287764.

Council of Science Editors:

Hamill, Patrick James 1. A UNIFIED THEORY OF ORBITAL AND ROTATIONAL RESONANCES . [Doctoral Dissertation]. University of Arizona; 1971. Available from: http://hdl.handle.net/10150/287764

University of British Columbia

7. Rieckhoff, Klaus Ekkehard. Optical Faraday rotation studies of paramagnetic resonance in neodymium ethylsulfate .

Degree: 1962, University of British Columbia

URL: http://hdl.handle.net/2429/39156

► Brief theoretical descriptions of the magneto-optical Faraday effect, the influence of paramagnetic resonance on the Faraday effect and the use of this effect for measurements… (more)

Subjects/Keywords: Resonance

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APA (6^th Edition):

Rieckhoff, K. E. (1962). Optical Faraday rotation studies of paramagnetic resonance in neodymium ethylsulfate . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/39156

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Rieckhoff, Klaus Ekkehard. “Optical Faraday rotation studies of paramagnetic resonance in neodymium ethylsulfate .” 1962. Thesis, University of British Columbia. Accessed July 22, 2019. http://hdl.handle.net/2429/39156.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Rieckhoff, Klaus Ekkehard. “Optical Faraday rotation studies of paramagnetic resonance in neodymium ethylsulfate .” 1962. Web. 22 Jul 2019.

Vancouver:

Rieckhoff KE. Optical Faraday rotation studies of paramagnetic resonance in neodymium ethylsulfate . [Internet] [Thesis]. University of British Columbia; 1962. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/2429/39156.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Rieckhoff KE. Optical Faraday rotation studies of paramagnetic resonance in neodymium ethylsulfate . [Thesis]. University of British Columbia; 1962. Available from: http://hdl.handle.net/2429/39156

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of British Columbia

8. Hutchinson, Douglas Allen. Electron spin resonance studies of NO₂ trapped in inert matrices at 4°K .

Degree: 1960, University of British Columbia

URL: http://hdl.handle.net/2429/40320

► A 9 K Mc electron spin resonance spectrometer has been constructed and has been used in conjunction with a specially designed liquid helium dewar. Provision… (more)

Subjects/Keywords: Resonance.

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APA (6^th Edition):

Hutchinson, D. A. (1960). Electron spin resonance studies of NO₂ trapped in inert matrices at 4°K . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/40320

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hutchinson, Douglas Allen. “Electron spin resonance studies of NO₂ trapped in inert matrices at 4°K .” 1960. Thesis, University of British Columbia. Accessed July 22, 2019. http://hdl.handle.net/2429/40320.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hutchinson, Douglas Allen. “Electron spin resonance studies of NO₂ trapped in inert matrices at 4°K .” 1960. Web. 22 Jul 2019.

Vancouver:

Hutchinson DA. Electron spin resonance studies of NO₂ trapped in inert matrices at 4°K . [Internet] [Thesis]. University of British Columbia; 1960. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/2429/40320.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hutchinson DA. Electron spin resonance studies of NO₂ trapped in inert matrices at 4°K . [Thesis]. University of British Columbia; 1960. Available from: http://hdl.handle.net/2429/40320

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of British Columbia

9. Wesemeyer, Harald Kurt. Experiments on paramagnetic resonance absorption in crystals at low temperatures .

Degree: 1958, University of British Columbia

URL: http://hdl.handle.net/2429/40683

► A paramagnetic resonance spectrometer operating at 3.2 cm has been built for use at liquid helium temperatures. This spectrometer employs a high Q transmission type… (more)

▼ A paramagnetic resonance spectrometer operating at 3.2 cm has been built for use at liquid helium temperatures. This spectrometer employs a high Q transmission type cavity resonator which is equipped with windows on the broad faces to pass light through. The pole pieces of the electromagnet have axially centered holes for passing light through, too. This enables magneto-optical effects and paramagnetic resonances to be studied simultaneously. A high power klystron, and a high Q cavity resonator permit experiments with microwave power saturation. The influence of the paramagnetic resonance absorption saturation on the paramagnetic Faraday effect has been studied. The paramagnetic Faraday effect (i.e. the rotation of the plane of polarisation of light passing through a paramagnetic crystal in the direction of an external magnetic field) is proportional to the magnetic moment of the crystal. When the crystal is exposed to microwave radiation of the correct frequency to cause appreciable saturation of this resonance, the magnetic moment is reduced, and a reduction of the rotation angle should be noticed. This effect was predicted by A. Kastler 1951, and a theory of this effect has been developed by W. Opechowski 1953. This effect was found in Nd(C₂H₅SO₄)₃∙.9H₂O at 1.4°K. In this salt the magnetic moment is proportional to the difference of the populations of the two levels M(s)= ± ½ of the Nd⁺⁺⁺ ion, having an effective ground state of S= ½. Saturation levels of about 52%, 88%, and 100% were obtained and hence the rotation angle of the plane of polarisation reduced accordingly. Thus the effect predicted by A. Kastler has been established. From the known power levels of the applied microwave frequency radiation the electron spin-lattice relaxation time of the Nd⁺⁺⁺ ions, in the upper level was found to be about 1/20 s at 1.4°K. Guanidine aluminium sulphate hexahydrate, (CN₃H₆)Al(SO₄)₂∙6H₂O, a crystal with trigonal structure, having three Al⁺⁺⁺ ions in the unit cell, has recently been discovered to be ferroelectric. The ferroelectric direction is along the trigonal axis. The determination of the structure was not completed when this work was started. In order to complete the crystallographic data with respect to the crystalline field of the immediate neighbours of the Al⁺⁺⁺ ions, Cr⁺⁺⁺ ions were introduced into the lattice replacing Al by 2%, and then the resonance spectrum of the Cr⁺⁺⁺ ions investigated at 295°K, 195°K, 77°K, and 55°K. Two sets of axially symmetric spectra, a total of six lines were observed, set 1 being twice as intensive as set 2. The investigations show that the Cr⁺⁺⁺ ions are exposed to a trigonal field. All three ions lie on the three-fold axis, and since there are 3 ions per unit cell, two of them are magnetically equivalent. Both sets of spectra can be fitted to the spin-Hamiltonian [formula omitted] where S = 3/2. The exact Hamiltonian was diagonalized using a digital computer, and the predicted lines agree with the measured ones within 1%. It was found that the D₁ and D₂increase linearly…

Subjects/Keywords: Resonance

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APA (6^th Edition):

Wesemeyer, H. K. (1958). Experiments on paramagnetic resonance absorption in crystals at low temperatures . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/40683

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wesemeyer, Harald Kurt. “Experiments on paramagnetic resonance absorption in crystals at low temperatures .” 1958. Thesis, University of British Columbia. Accessed July 22, 2019. http://hdl.handle.net/2429/40683.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wesemeyer, Harald Kurt. “Experiments on paramagnetic resonance absorption in crystals at low temperatures .” 1958. Web. 22 Jul 2019.

Vancouver:

Wesemeyer HK. Experiments on paramagnetic resonance absorption in crystals at low temperatures . [Internet] [Thesis]. University of British Columbia; 1958. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/2429/40683.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wesemeyer HK. Experiments on paramagnetic resonance absorption in crystals at low temperatures . [Thesis]. University of British Columbia; 1958. Available from: http://hdl.handle.net/2429/40683

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta

10. Dwan, Jerrod Ryan. Investigating the 197Au-31P spin-spin coupling interactions in gold-phosphine halides using solid-state nuclear magnetic resonance, spectral simulations, and quantum chemistry computations.

Degree: MS, Department of Chemistry, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/tm70mw653

► Phosphorus-31 nuclear magnetic resonance spectroscopy with magic angle spinning was used to characterize 197Au-31P spin-spin coupling interactions in solid gold-phosphine halides and the spectra have… (more)

Subjects/Keywords: Nuclear magnetic resonance spectroscopy; Nuclear magnetic resonance

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APA (6^th Edition):

Dwan, J. R. (2011). Investigating the 197Au-31P spin-spin coupling interactions in gold-phosphine halides using solid-state nuclear magnetic resonance, spectral simulations, and quantum chemistry computations. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/tm70mw653

Chicago Manual of Style (16^th Edition):

Dwan, Jerrod Ryan. “Investigating the 197Au-31P spin-spin coupling interactions in gold-phosphine halides using solid-state nuclear magnetic resonance, spectral simulations, and quantum chemistry computations.” 2011. Masters Thesis, University of Alberta. Accessed July 22, 2019. https://era.library.ualberta.ca/files/tm70mw653.

MLA Handbook (7^th Edition):

Dwan, Jerrod Ryan. “Investigating the 197Au-31P spin-spin coupling interactions in gold-phosphine halides using solid-state nuclear magnetic resonance, spectral simulations, and quantum chemistry computations.” 2011. Web. 22 Jul 2019.

Vancouver:

Dwan JR. Investigating the 197Au-31P spin-spin coupling interactions in gold-phosphine halides using solid-state nuclear magnetic resonance, spectral simulations, and quantum chemistry computations. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2019 Jul 22]. Available from: https://era.library.ualberta.ca/files/tm70mw653.

Council of Science Editors:

Dwan JR. Investigating the 197Au-31P spin-spin coupling interactions in gold-phosphine halides using solid-state nuclear magnetic resonance, spectral simulations, and quantum chemistry computations. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/tm70mw653

Texas A&M University

11. Parizek, Kurt Aaron. Integrating External Hardware on Existing Magnetic Resonance Systems for Commercially Unsupported Applications.

Degree: MS, Biomedical Engineering, 2017, Texas A&M University

URL: http://hdl.handle.net/1969.1/166056

► Magnetic resonance imaging and spectroscopy provide the potential for breakthroughs in the understanding of disease and evaluation of treatment outcomes in medical conditions such as… (more)

▼ Magnetic resonance imaging and spectroscopy provide the potential for breakthroughs in the understanding of disease and evaluation of treatment outcomes in medical conditions such as muscular disorders, cancer, and mental illnesses. Compared to ?H nuclei, secondary (non-?H) nuclei such as ??C, ??P, and ??Na necessitate higher sensitivity detection methods due to smaller concentrations in vivo and intrinsically lower Larmor frequencies. Two ways to increase the sensitivity of experiments using radiofrequency coils are 1) through optimizing the coil size to fit the volume of interest, and 2) through increasing the number of coils over a defined field of view through phased arrays. Clinical scanners are often constrained in these two regards in that the radiofrequency coils available from the vendor are generally much larger than the volume of interest, and clinical scanners are typically equipped with a singular broadband channel. With these limitations, there is a need to extend the capabilities of existing magnetic resonance systems to increase sensitivity for secondary nuclei and for imaging experiments that fall outside the characteristics of a typical human clinical exam (i.e. small samples, animals, or targeted anatomies). This thesis describes a set of work to address these limitations in order to extend the capabilities of commercial scanners for custom applications. First, the functionality of an existing custom-built multi-channel, broadband receiver is improved through adding calibration capability on each individual channel and through the creation of a user interface that will result in a faster workflow which is critical for live animal experiments. Second, a custom-built double-tuned coil is interfaced to a 3T clinical magnetic resonance imaging system through a custom built connector, increasing the signal-to-noise ratio for the given application in comparison to the currently available coil for the scanner. Both of these projects work towards integrating external hardware on existing systems to increase the sensitivity of multinuclear studies and customized experiments. Advisors/Committee Members: McDougall, Mary (advisor), Yeh, Alvin (committee member), Kornegay, Joe (committee member).

Subjects/Keywords: Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy

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APA (6^th Edition):

Parizek, K. A. (2017). Integrating External Hardware on Existing Magnetic Resonance Systems for Commercially Unsupported Applications. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/166056

Chicago Manual of Style (16^th Edition):

Parizek, Kurt Aaron. “Integrating External Hardware on Existing Magnetic Resonance Systems for Commercially Unsupported Applications.” 2017. Masters Thesis, Texas A&M University. Accessed July 22, 2019. http://hdl.handle.net/1969.1/166056.

MLA Handbook (7^th Edition):

Parizek, Kurt Aaron. “Integrating External Hardware on Existing Magnetic Resonance Systems for Commercially Unsupported Applications.” 2017. Web. 22 Jul 2019.

Vancouver:

Parizek KA. Integrating External Hardware on Existing Magnetic Resonance Systems for Commercially Unsupported Applications. [Internet] [Masters thesis]. Texas A&M University; 2017. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/1969.1/166056.

Council of Science Editors:

Parizek KA. Integrating External Hardware on Existing Magnetic Resonance Systems for Commercially Unsupported Applications. [Masters Thesis]. Texas A&M University; 2017. Available from: http://hdl.handle.net/1969.1/166056

University of Aberdeen

12. Payne, Nicholas Roy. Quadrupolar relaxation-based methods in fast field-cycling MRI.

Degree: PhD, 2019, University of Aberdeen

URL: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240235 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767352

► Quadrupolar relaxation-based methods in Fast Field-Cycling MRI Nicholas R. Payne Aberdeen Biomedical Imaging Centre, University of Aberdeen, AB25 2ZD, Scotland, UK Fast Field-Cycling MRI (FFC-MRI)… (more)

▼ Quadrupolar relaxation-based methods in Fast Field-Cycling MRI Nicholas R. Payne Aberdeen Biomedical Imaging Centre, University of Aberdeen, AB25 2ZD, Scotland, UK Fast Field-Cycling MRI (FFC-MRI) can access contrast based on the dependence of a sample's relaxation rate to the applied magnetic field strength. This technique can provide signal based on interactions with local quadrupolar nuclei through cross-relaxation, however, there are other so-called Nuclear Quadrupole Double Resonance (NQDR) techniques described in the literature. This work has been centred on efforts to apply these techniques to FFC-MRI and otherwise explore how interactions between protons and quadrupolar nuclei can be further exploited. Through this work two irradiation systems were designed and built for manual tuning, in the first instance, and automatic tuning. The latter was able to quickly retune to coil, however, it was limited in RF power handling capability. A second strand of work was concerned with the reduction in receiver deadtime required to detect signal from solid-state samples such as those previously used in NQDR experiments in the literature. However, circuitry designed to dampen coil ringing by temporarily reducing the resonator's Q-factor following a pulse, along with a novel method utilising field-cycling were not able to reduce the deadtime enough to detect signal from relevant samples. This, coupled with a lack of evidence of NQDR effects in gel-like samples, proved the ultimate stumbling block for NQDR in FFC-MRI. Success was seen in a third strand of work in which simulations were used to design custom experiments which could be used to provide large increases to the signal-to-noise ratio in some experiments. The simulated environment also allowed for fast testing and development of new post-process algorithms which could more accurately calculate relaxation rates. The work concluded that NQDR is unlikely to be useful in FFC-MRI due to the constraints on both the sample and the technique. However the information from quadrupolar nuclei can be improved with better post-processing and tailored pulse sequence parameters.

Subjects/Keywords: Nuclear quadrupole resonance; Magnetic resonance imaging

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APA (6^th Edition):

Payne, N. R. (2019). Quadrupolar relaxation-based methods in fast field-cycling MRI. (Doctoral Dissertation). University of Aberdeen. Retrieved from http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240235 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767352

Chicago Manual of Style (16^th Edition):

Payne, Nicholas Roy. “Quadrupolar relaxation-based methods in fast field-cycling MRI.” 2019. Doctoral Dissertation, University of Aberdeen. Accessed July 22, 2019. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240235 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767352.

MLA Handbook (7^th Edition):

Payne, Nicholas Roy. “Quadrupolar relaxation-based methods in fast field-cycling MRI.” 2019. Web. 22 Jul 2019.

Vancouver:

Payne NR. Quadrupolar relaxation-based methods in fast field-cycling MRI. [Internet] [Doctoral dissertation]. University of Aberdeen; 2019. [cited 2019 Jul 22]. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240235 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767352.

Council of Science Editors:

Payne NR. Quadrupolar relaxation-based methods in fast field-cycling MRI. [Doctoral Dissertation]. University of Aberdeen; 2019. Available from: http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=240235 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767352

Rutgers University

13. Toth, Robert James, 1987-. Improved active shape models for segmentation of the prostate on MR imagery.

Degree: MS, Biomedical Engineering, 2010, Rutgers University

URL: http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000056806

► Segmentation aims to determine which locations within an image contain the object of interest. Segmentation of the prostate boundary on clinical images is useful in… (more)

▼ Segmentation aims to determine which locations within an image contain the object of interest. Segmentation of the prostate boundary on clinical images is useful in a large number of applications including calculation of prostate volume pre- and post-treatment, detection of extra-capsular spread, and creation of patient-specific anatomical models. Manual segmentation of the prostate boundary is, however, time consuming and subject to inter- and intra-reader variability. T2-weighted (T2-w) Magnetic Resonance (MR) structural imaging (MRI) and MR Spectroscopy (MRS) have recently emerged as promising modalities for detection of prostate cancer in vivo. With the recent advance in prostate imagery, we have generated an accurate prostate segmentation system for MR imagery. Our system builds upon the popular Active Shape Model (ASM) framework, in which a statistical description of the shape is first generated, after which an appearance of the object of interest is modeled. In our system, the shape model can be generated in either 2D or 3D, and is defined by a set of anatomical landmarks. For the appearance model, we offer several improvements. We generated statistical texture features of the prostate images, and use those features to overcome limitations of solely using intensities. In addition, we use intelligent feature selection algorithms including forward feature selection and adaboost to determine which features to include in our segmentation system. The statistical appearance models are not modeled as a simple Gaussian distribution, but rather as a sum of Gaussians, resulting in more accurate models. In 2D, a local appearance model is generated for each landmark location on the prostate border. However, in 3D this is infeasible, so we generate a global appearance model describing the voxels within the prostate. The 2D ASM resulted in a Dice similarity coefficient (DSC) of 0.85, while our 3D system resulted in a DSC of 0.89 (over 56 and 37 studies respectively). This is comparable to other state of the art prostate MR segmentation schemes. Finally, we have shown that in the specific application of prostate volume estimation, our system performs more accurate volume estimations than currently employed clinical models. Our system achieved a correlation (R² value) with the ground truth volume of 0.82 while the clinical model achieved an R² value of 0.70. Our system had a volume fraction of 1.05 in comparison to the ground truth volume, while the clinical model achieved a volume fraction of 1.14. Overall, we have developed an efficient, accurate, and useful prostate segmentation scheme for MR imagery. Advisors/Committee Members: Toth, Robert James, 1987- (author), Madabhushi, Anant (chair), Shinbrot, Troy (internal member), Boustany, Nada (internal member), Ganesan, Shridar (outside member).

Subjects/Keywords: Prostate – Magnetic resonance imaging; Magnetic resonance microscopy

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Toth, Robert James, 1. (2010). Improved active shape models for segmentation of the prostate on MR imagery. (Masters Thesis). Rutgers University. Retrieved from http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000056806

Chicago Manual of Style (16^th Edition):

Toth, Robert James, 1987-. “Improved active shape models for segmentation of the prostate on MR imagery.” 2010. Masters Thesis, Rutgers University. Accessed July 22, 2019. http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000056806.

MLA Handbook (7^th Edition):

Toth, Robert James, 1987-. “Improved active shape models for segmentation of the prostate on MR imagery.” 2010. Web. 22 Jul 2019.

Vancouver:

Toth, Robert James 1. Improved active shape models for segmentation of the prostate on MR imagery. [Internet] [Masters thesis]. Rutgers University; 2010. [cited 2019 Jul 22]. Available from: http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000056806.

Council of Science Editors:

Toth, Robert James 1. Improved active shape models for segmentation of the prostate on MR imagery. [Masters Thesis]. Rutgers University; 2010. Available from: http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000056806

University of Georgia

14. Lee, Joonsang. DCE-MRI for quantification and segmentation of tumors: reference region model and independent component analysis.

Degree: PhD, Physics, 2013, University of Georgia

URL: http://purl.galileo.usg.edu/uga_etd/lee_joonsang_201308_phd

► Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) has been widely studied as a cancer imaging tool that provides information about blood volume and microvascular permeability by… (more)

Subjects/Keywords: Magnetic Resonance Imaging

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APA (6^th Edition):

Lee, J. (2013). DCE-MRI for quantification and segmentation of tumors: reference region model and independent component analysis. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/lee_joonsang_201308_phd

Chicago Manual of Style (16^th Edition):

Lee, Joonsang. “DCE-MRI for quantification and segmentation of tumors: reference region model and independent component analysis.” 2013. Doctoral Dissertation, University of Georgia. Accessed July 22, 2019. http://purl.galileo.usg.edu/uga_etd/lee_joonsang_201308_phd.

MLA Handbook (7^th Edition):

Lee, Joonsang. “DCE-MRI for quantification and segmentation of tumors: reference region model and independent component analysis.” 2013. Web. 22 Jul 2019.

Vancouver:

Lee J. DCE-MRI for quantification and segmentation of tumors: reference region model and independent component analysis. [Internet] [Doctoral dissertation]. University of Georgia; 2013. [cited 2019 Jul 22]. Available from: http://purl.galileo.usg.edu/uga_etd/lee_joonsang_201308_phd.

Council of Science Editors:

Lee J. DCE-MRI for quantification and segmentation of tumors: reference region model and independent component analysis. [Doctoral Dissertation]. University of Georgia; 2013. Available from: http://purl.galileo.usg.edu/uga_etd/lee_joonsang_201308_phd

University of Georgia

15. Wang, Luning. Magnetic resonance imaging of short T2 materials: from detection to quantification.

Degree: PhD, Physics, 2013, University of Georgia

URL: http://purl.galileo.usg.edu/uga_etd/wang_luning_201312_phd

► Magnetic resonance imaging (MRI) is a cutting-edge imaging technique that has been widely and successfully used in clinical diagnoses and biological researches. However, challenges usually… (more)

Subjects/Keywords: Magnetic Resonance Imaging

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APA (6^th Edition):

Wang, L. (2013). Magnetic resonance imaging of short T2 materials: from detection to quantification. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/wang_luning_201312_phd

Chicago Manual of Style (16^th Edition):

Wang, Luning. “Magnetic resonance imaging of short T2 materials: from detection to quantification.” 2013. Doctoral Dissertation, University of Georgia. Accessed July 22, 2019. http://purl.galileo.usg.edu/uga_etd/wang_luning_201312_phd.

MLA Handbook (7^th Edition):

Wang, Luning. “Magnetic resonance imaging of short T2 materials: from detection to quantification.” 2013. Web. 22 Jul 2019.

Vancouver:

Wang L. Magnetic resonance imaging of short T2 materials: from detection to quantification. [Internet] [Doctoral dissertation]. University of Georgia; 2013. [cited 2019 Jul 22]. Available from: http://purl.galileo.usg.edu/uga_etd/wang_luning_201312_phd.

Council of Science Editors:

Wang L. Magnetic resonance imaging of short T2 materials: from detection to quantification. [Doctoral Dissertation]. University of Georgia; 2013. Available from: http://purl.galileo.usg.edu/uga_etd/wang_luning_201312_phd

University of Utah

16. Shi, Xianfeng. Novel imaging techniques to improve the accuracy of measurement in magnetic resonance imaging.

Degree: PhD, Physics, 2010, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1268/rec/821

► Magnetic resonance imaging (MRI) techniques are widely applied in various disease diagnoses and scientific research projects as noninvasive methods. However, lower signal-to-noise ratio (SNR), B1… (more)

▼ Magnetic resonance imaging (MRI) techniques are widely applied in various disease diagnoses and scientific research projects as noninvasive methods. However, lower signal-to-noise ratio (SNR), B1 inhomogeneity, motion-related artifact, susceptibility artifact, chemical shift artifact and Gibbs ring still play a negative role in image quality improvement. Various techniques and methods were developed to minimize and remove the degradation of image quality originating from artifacts. In the first part of this dissertation, a motion artifact reduction technique based on a novel real time self-gated pulse sequence is presented. Diffusion weighted and diffusion tensor magnetic resonance imaging techniques are generally performed with signal averaging of multiple measurements to improve the signal-to-noise ratio and the accuracy of diffusion measurement. Any discrepancy in images between different averages causes errors that reduce the accuracy of diffusion MRI measurements. The new scheme is capable of detecting a subject’s motion and reacquiring motion-corrupted data in real time and helps to improve the accuracy of diffusion MRI measurements. In the second part of this dissertation, a rapid T1 mapping technique (two dimensional singleshot spin echo stimulated echo planar image – 2D ss-SESTEPI), which is an EPI-based singleshot imaging technique that simultaneously acquires a spin-EPI (SEPI) and a stimulated-EPI (STEPI) after a single RF excitation, is discussed. The magnitudes of SEPI and STEPI differ by T1 decay for perfect 90o RF pulses and can be used to rapidly measure the T1 relaxation time. However, the spatial variation of B1 amplitude induces uneven splitting of the transverse magnetization for SEPI and STEPI within the imaging FOV. Therefore, correction for B1 inhomogeneity is critical for 2D ss-SESTEPI to be used for T1 measurement. In general, the EPI-based pulse sequence suffers from geometric distortion around the boundary of air-tissue or bone tissue. In the third part of this dissertation, a novel pulse sequence is discussed, which was developed based on three dimensional singleshot diffusion weighted stimulated echo planar imaging (3D ss-DWSTEPI). A parallel imaging technique was combined with 3D ss-DWSTEPI to reduce the image distortion, and the secondary spin echo formed by three RF pulses (900-1800-900) is used to improve the SNR. Image quality is improved.

Subjects/Keywords: Magnetic resonance imaging

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APA (6^th Edition):

Shi, X. (2010). Novel imaging techniques to improve the accuracy of measurement in magnetic resonance imaging. (Doctoral Dissertation). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1268/rec/821

Chicago Manual of Style (16^th Edition):

Shi, Xianfeng. “Novel imaging techniques to improve the accuracy of measurement in magnetic resonance imaging.” 2010. Doctoral Dissertation, University of Utah. Accessed July 22, 2019. http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1268/rec/821.

MLA Handbook (7^th Edition):

Shi, Xianfeng. “Novel imaging techniques to improve the accuracy of measurement in magnetic resonance imaging.” 2010. Web. 22 Jul 2019.

Vancouver:

Shi X. Novel imaging techniques to improve the accuracy of measurement in magnetic resonance imaging. [Internet] [Doctoral dissertation]. University of Utah; 2010. [cited 2019 Jul 22]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1268/rec/821.

Council of Science Editors:

Shi X. Novel imaging techniques to improve the accuracy of measurement in magnetic resonance imaging. [Doctoral Dissertation]. University of Utah; 2010. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd2/id/1268/rec/821

University of Georgia

17. Langley, Jason Allen. Estimation of the phase gradient in MIR: from phase unwrapping to characterization of magnetic field maps.

Degree: PhD, Physics, 2011, University of Georgia

URL: http://purl.galileo.usg.edu/uga_etd/langley_jason_a_201105_phd

► Images acquired from magnetic resonance imaging scanners take complex values. The images can be broken into two distinct types of images: magnitude images and phase… (more)

Subjects/Keywords: Magnetic Resonance Imaging

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APA (6^th Edition):

Langley, J. A. (2011). Estimation of the phase gradient in MIR: from phase unwrapping to characterization of magnetic field maps. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/langley_jason_a_201105_phd

Chicago Manual of Style (16^th Edition):

Langley, Jason Allen. “Estimation of the phase gradient in MIR: from phase unwrapping to characterization of magnetic field maps.” 2011. Doctoral Dissertation, University of Georgia. Accessed July 22, 2019. http://purl.galileo.usg.edu/uga_etd/langley_jason_a_201105_phd.

MLA Handbook (7^th Edition):

Langley, Jason Allen. “Estimation of the phase gradient in MIR: from phase unwrapping to characterization of magnetic field maps.” 2011. Web. 22 Jul 2019.

Vancouver:

Langley JA. Estimation of the phase gradient in MIR: from phase unwrapping to characterization of magnetic field maps. [Internet] [Doctoral dissertation]. University of Georgia; 2011. [cited 2019 Jul 22]. Available from: http://purl.galileo.usg.edu/uga_etd/langley_jason_a_201105_phd.

Council of Science Editors:

Langley JA. Estimation of the phase gradient in MIR: from phase unwrapping to characterization of magnetic field maps. [Doctoral Dissertation]. University of Georgia; 2011. Available from: http://purl.galileo.usg.edu/uga_etd/langley_jason_a_201105_phd

California State University – East Bay

18. Galvan, Stephan. Aptamer Based Ligand for Increasing the Stability of Gd(III) Based MRI Contrast Agent.

Degree: 2016, California State University – East Bay

URL: http://hdl.handle.net/10211.3/164278

► Spurred by the endless possibilities of aptamers applications, we decided to investigate the potential for an aptamer based MRI contrast agent. Our research group has… (more)

Subjects/Keywords: Magnetic resonance imaging

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APA (6^th Edition):

Galvan, S. (2016). Aptamer Based Ligand for Increasing the Stability of Gd(III) Based MRI Contrast Agent. (Thesis). California State University – East Bay. Retrieved from http://hdl.handle.net/10211.3/164278

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Galvan, Stephan. “Aptamer Based Ligand for Increasing the Stability of Gd(III) Based MRI Contrast Agent.” 2016. Thesis, California State University – East Bay. Accessed July 22, 2019. http://hdl.handle.net/10211.3/164278.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Galvan, Stephan. “Aptamer Based Ligand for Increasing the Stability of Gd(III) Based MRI Contrast Agent.” 2016. Web. 22 Jul 2019.

Vancouver:

Galvan S. Aptamer Based Ligand for Increasing the Stability of Gd(III) Based MRI Contrast Agent. [Internet] [Thesis]. California State University – East Bay; 2016. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/10211.3/164278.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Galvan S. Aptamer Based Ligand for Increasing the Stability of Gd(III) Based MRI Contrast Agent. [Thesis]. California State University – East Bay; 2016. Available from: http://hdl.handle.net/10211.3/164278

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Hong Kong

19. Chow, Mei-kwan, April. Cellular, molecular and metabolic magnetic resonance imaging: techniques and applications.

Degree: PhD, 2010, University of Hong Kong

URL: Chow, M. A. [周美君]. (2010). Cellular, molecular and metabolic magnetic resonance imaging : techniques and applications. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4490114 ; http://dx.doi.org/10.5353/th_b4490114 ; http://hdl.handle.net/10722/130931

published_or_final_version

Electrical and Electronic Engineering

Doctoral

Doctor of Philosophy

Advisors/Committee Members: Wu, EX.

Subjects/Keywords: Magnetic resonance imaging.

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APA (6^th Edition):

Chow, Mei-kwan, A. (2010). Cellular, molecular and metabolic magnetic resonance imaging: techniques and applications. (Doctoral Dissertation). University of Hong Kong. Retrieved from Chow, M. A. [周美君]. (2010). Cellular, molecular and metabolic magnetic resonance imaging : techniques and applications. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4490114 ; http://dx.doi.org/10.5353/th_b4490114 ; http://hdl.handle.net/10722/130931

Chicago Manual of Style (16^th Edition):

Chow, Mei-kwan, April. “Cellular, molecular and metabolic magnetic resonance imaging: techniques and applications.” 2010. Doctoral Dissertation, University of Hong Kong. Accessed July 22, 2019. Chow, M. A. [周美君]. (2010). Cellular, molecular and metabolic magnetic resonance imaging : techniques and applications. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4490114 ; http://dx.doi.org/10.5353/th_b4490114 ; http://hdl.handle.net/10722/130931.

MLA Handbook (7^th Edition):

Chow, Mei-kwan, April. “Cellular, molecular and metabolic magnetic resonance imaging: techniques and applications.” 2010. Web. 22 Jul 2019.

Vancouver:

Chow, Mei-kwan A. Cellular, molecular and metabolic magnetic resonance imaging: techniques and applications. [Internet] [Doctoral dissertation]. University of Hong Kong; 2010. [cited 2019 Jul 22]. Available from: Chow, M. A. [周美君]. (2010). Cellular, molecular and metabolic magnetic resonance imaging : techniques and applications. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4490114 ; http://dx.doi.org/10.5353/th_b4490114 ; http://hdl.handle.net/10722/130931.

Council of Science Editors:

Chow, Mei-kwan A. Cellular, molecular and metabolic magnetic resonance imaging: techniques and applications. [Doctoral Dissertation]. University of Hong Kong; 2010. Available from: Chow, M. A. [周美君]. (2010). Cellular, molecular and metabolic magnetic resonance imaging : techniques and applications. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4490114 ; http://dx.doi.org/10.5353/th_b4490114 ; http://hdl.handle.net/10722/130931

University of Hong Kong

20. Cao, Peng. Advanced magnetic resonance spectroscopy techniques and applications.

Degree: PhD, 2013, University of Hong Kong

URL: Cao, P. [曹鹏]. (2013). Advanced magnetic resonance spectroscopy techniques and applications. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5153664 ; http://dx.doi.org/10.5353/th_b5153664 ; http://hdl.handle.net/10722/202256

► Magnetic resonance (MR) is a well-known non-invasive technique that provides spectra (by MR spectroscopy, MRS) and images (by magnetic resonance imaging, MRI) of the examined… (more)

▼ Magnetic resonance (MR) is a well-known non-invasive technique that provides spectra (by MR spectroscopy, MRS) and images (by magnetic resonance imaging, MRI) of the examined tissue with detailed metabolic, structural, and functional information. This doctoral work is focused on advanced methodologies and applications of MRS for probing cellular and molecular changes in vivo. A single-voxel diffusion-weighted (DW) MRS method was first developed for monitoring the size changes of intramyocellular lipid droplets in vivo. This DWMRS technique was then utilized for exploring the vascular origins of the functional blood-oxygen-level-dependent (BOLD) signal. Magnetic resonance spectroscopic imaging (MRSI) enables simultaneous MRS acquisition in multiple voxels. However, MRSI is conventionally time-consuming. Therefore, a compressed sensing (CS) method was proposed in this thesis to accelerate the acquisition speed of the in vivo MRSI. It holds the potential for promoting the realization of multiple-voxel DW-MRS experiments, though the latter is still constrained by hardware in the present. The single-voxel DW-MRS method for probing lipid diffusion was first developed and evaluated in oil and muscle phantoms. The experimental sequence was demonstrated to be sensitive to diffusion restriction and free of significant artifacts. Experiments were then performed in rat hindlimb muscles in vivo. The restricted lipid diffusion behavior was characterized by apparent diffusion coefficient (ADC) changes and utilized for quantifying the sizes of intramyocellular lipid (IMCL) droplets in normal, fasting, diabetic and obese rats. The sizes of IMCL droplets reflect their vital roles in muscle energy metabolism. The IMCL droplet size estimated by ADC here was closely correlated with that measured by transmission electron microscopy. IMCL ADC was sensitive to metabolic alterations, decreasing in the fasting and diabetic groups while increasing in the obese group. These results clearly demonstrate DW MRS as a new means to examine the dynamics of IMCL metabolism in vivo. The DW-MRS technique was then utilized to characterize water ADC during neuronal activation to explore the vascular origins of the BOLD signal in rat brains. MRS experiments with acoustic stimulation were performed with a dynamic point-resolved spectroscopy (PRESS) acquisition on conditions with or without the diffusion gradient for blood suppression in the same voxel and same experimental session, which enabled the simultaneous T2/T2*/diffusion measurements. The T2*% changes with and without diffusion gradient showed no significant difference, while the spin echo (SE)-BOLD% (T2%) change significantly decreased after applying the diffusion gradient, suggesting an intravascular component in the SE-BOLD signal. This intravascular component was not venous blood, as the T2* of this component was comparable with the T2* of the brain tissue. These results provide new insights into the vascular origins of BOLD signals. A CS approach was developed to accelerate in vivo magnetic…

Subjects/Keywords: Magnetic resonance imaging

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APA (6^th Edition):

Cao, P. (2013). Advanced magnetic resonance spectroscopy techniques and applications. (Doctoral Dissertation). University of Hong Kong. Retrieved from Cao, P. [曹鹏]. (2013). Advanced magnetic resonance spectroscopy techniques and applications. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5153664 ; http://dx.doi.org/10.5353/th_b5153664 ; http://hdl.handle.net/10722/202256

Chicago Manual of Style (16^th Edition):

Cao, Peng. “Advanced magnetic resonance spectroscopy techniques and applications.” 2013. Doctoral Dissertation, University of Hong Kong. Accessed July 22, 2019. Cao, P. [曹鹏]. (2013). Advanced magnetic resonance spectroscopy techniques and applications. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5153664 ; http://dx.doi.org/10.5353/th_b5153664 ; http://hdl.handle.net/10722/202256.

MLA Handbook (7^th Edition):

Cao, Peng. “Advanced magnetic resonance spectroscopy techniques and applications.” 2013. Web. 22 Jul 2019.

Vancouver:

Cao P. Advanced magnetic resonance spectroscopy techniques and applications. [Internet] [Doctoral dissertation]. University of Hong Kong; 2013. [cited 2019 Jul 22]. Available from: Cao, P. [曹鹏]. (2013). Advanced magnetic resonance spectroscopy techniques and applications. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5153664 ; http://dx.doi.org/10.5353/th_b5153664 ; http://hdl.handle.net/10722/202256.

Council of Science Editors:

Cao P. Advanced magnetic resonance spectroscopy techniques and applications. [Doctoral Dissertation]. University of Hong Kong; 2013. Available from: Cao, P. [曹鹏]. (2013). Advanced magnetic resonance spectroscopy techniques and applications. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5153664 ; http://dx.doi.org/10.5353/th_b5153664 ; http://hdl.handle.net/10722/202256

Montana State University

21. Li, Hongyan. Control of the spin relaxation and magnetic anisotropy in Fe 1-x Ga x/ZnSe systems.

Degree: College of Letters & Science, 2011, Montana State University

URL: https://scholarworks.montana.edu/xmlui/handle/1/1728

► Magnetostrictive materials will deform under application of a magnetic field. They can be deposited onto various substrates for engineering multifunctional materials, such as integrated micro… (more)

Subjects/Keywords: Ferromagnetic resonance.; Magnetostriction.

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APA (6^th Edition):

Li, H. (2011). Control of the spin relaxation and magnetic anisotropy in Fe 1-x Ga x/ZnSe systems. (Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/1728

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Li, Hongyan. “Control of the spin relaxation and magnetic anisotropy in Fe 1-x Ga x/ZnSe systems.” 2011. Thesis, Montana State University. Accessed July 22, 2019. https://scholarworks.montana.edu/xmlui/handle/1/1728.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Li, Hongyan. “Control of the spin relaxation and magnetic anisotropy in Fe 1-x Ga x/ZnSe systems.” 2011. Web. 22 Jul 2019.

Vancouver:

Li H. Control of the spin relaxation and magnetic anisotropy in Fe 1-x Ga x/ZnSe systems. [Internet] [Thesis]. Montana State University; 2011. [cited 2019 Jul 22]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/1728.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Li H. Control of the spin relaxation and magnetic anisotropy in Fe 1-x Ga x/ZnSe systems. [Thesis]. Montana State University; 2011. Available from: https://scholarworks.montana.edu/xmlui/handle/1/1728

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Virginia Tech

22. Allen, Ben. What Resonates with you? Methods of Induced Cardiovascular Resonance.

Degree: MS, Psychology, 2010, Virginia Tech

URL: http://hdl.handle.net/10919/32237

► Patients with autonomic dysfunction have benefited from balancing of parasympathetic and sympathetic activity through the practice of slow breathing exercises. In preliminary studies, patients with… (more)

Subjects/Keywords: Respiration; Cardiovascular; Resonance

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APA (6^th Edition):

Allen, B. (2010). What Resonates with you? Methods of Induced Cardiovascular Resonance. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/32237

Chicago Manual of Style (16^th Edition):

Allen, Ben. “What Resonates with you? Methods of Induced Cardiovascular Resonance.” 2010. Masters Thesis, Virginia Tech. Accessed July 22, 2019. http://hdl.handle.net/10919/32237.

MLA Handbook (7^th Edition):

Allen, Ben. “What Resonates with you? Methods of Induced Cardiovascular Resonance.” 2010. Web. 22 Jul 2019.

Vancouver:

Allen B. What Resonates with you? Methods of Induced Cardiovascular Resonance. [Internet] [Masters thesis]. Virginia Tech; 2010. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/10919/32237.

Council of Science Editors:

Allen B. What Resonates with you? Methods of Induced Cardiovascular Resonance. [Masters Thesis]. Virginia Tech; 2010. Available from: http://hdl.handle.net/10919/32237

23. Hegarty, Catherine Elizabeth. Association of Dopamine with Reward, Neuroleptic Response and Risk Genes: Multimodal Neuroimaging Insights on the Neurobiology of Schizophrenia.

Degree: Department of Neuroscience, 2017, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:733358/

► The etiology of schizophrenia (SCZ) remains elusive, though dopaminergic and genetic influences have been established as contributing factors to the disease’s pathophysiology. Current treatments for… (more)

▼ The etiology of schizophrenia (SCZ) remains elusive, though dopaminergic and genetic influences have been established as contributing factors to the disease’s pathophysiology. Current treatments for SCZ are ineffective in treating some core aspects of the disease, such as the negative and cognitive symptoms, and development of improved therapies is hampered by an incomplete understanding of the associated neurobiology. Reward processing studies in schizophrenia may lend insight into the biology of negative symptoms, though interpretation of findings in existing literature is limited by confounding cognitive and performance-based components of instrumental reward tasks. To isolate reward-related deficits from these contributing processes and medication effects, I used fMRI to study passive reward anticipation — in conditions of low cognitive demand — in patients with SCZ spectrum disorders during both arms of a double-blinded, placebo-controlled, atypical antipsychotic-withdrawal protocol. Relative to healthy controls, patients exhibit a diminished ventral striatal response to reward anticipation. The reduction was associated with both reward probability and negative symptoms, and was not significantly altered by medication. I then used PET to evaluate the neurochemical associations of the neurophysiological response to reward anticipation, revealing a positive relationship between ventral striatal dopamine (DA) synthetic tone and local fMRI-evaluated sustained response in both drug-free patients and healthy controls. Furthermore, D2/3R availability in patients predicts changes in the VST neurophysiological response to reward anticipation following treatment, such that higher basal D2/3R availability corresponds with greater VST response during medicated versus drug-free conditions. Finally, I provide the first in vivo evidence for a relationship between the SCZ risk gene ZNF804A and DA function. Future studies may enable identification of the mechanism through which ZNF804A affects the DA system and, possibly, the risk for schizophrenia. Collectively, this thesis emphasizes the importance of elucidating the complex relationship of DA with multiple levels of neurobiology in schizophrenia for improving our understanding of this devastating disease. Advisors/Committee Members: Ramchandani, Vijay (Reader), Smith, Gwenn (Reader), Sheinberg, David (Reader), Eisenberg, Daniel (Reader), Berman, Karen (Advisor).

Subjects/Keywords: Magnetic resonance imaging

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APA (6^th Edition):

Hegarty, C. E. (2017). Association of Dopamine with Reward, Neuroleptic Response and Risk Genes: Multimodal Neuroimaging Insights on the Neurobiology of Schizophrenia. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:733358/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hegarty, Catherine Elizabeth. “Association of Dopamine with Reward, Neuroleptic Response and Risk Genes: Multimodal Neuroimaging Insights on the Neurobiology of Schizophrenia.” 2017. Thesis, Brown University. Accessed July 22, 2019. https://repository.library.brown.edu/studio/item/bdr:733358/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hegarty, Catherine Elizabeth. “Association of Dopamine with Reward, Neuroleptic Response and Risk Genes: Multimodal Neuroimaging Insights on the Neurobiology of Schizophrenia.” 2017. Web. 22 Jul 2019.

Vancouver:

Hegarty CE. Association of Dopamine with Reward, Neuroleptic Response and Risk Genes: Multimodal Neuroimaging Insights on the Neurobiology of Schizophrenia. [Internet] [Thesis]. Brown University; 2017. [cited 2019 Jul 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:733358/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hegarty CE. Association of Dopamine with Reward, Neuroleptic Response and Risk Genes: Multimodal Neuroimaging Insights on the Neurobiology of Schizophrenia. [Thesis]. Brown University; 2017. Available from: https://repository.library.brown.edu/studio/item/bdr:733358/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

24. Liu, Wencong. NMR Study of Materials with Significant Spin-Orbit Coupling and Transparent Oxide Films.

Degree: Department of Physics, 2017, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:792641/

► Spin-orbit coupling (SOC) refers to the interaction between the orbital angular momentum and electron spin, which is typically a small perturbation in relative light elements.… (more)

▼ Spin-orbit coupling (SOC) refers to the interaction between the orbital angular momentum and electron spin, which is typically a small perturbation in relative light elements. However, such interaction is proportional to the fourth order of the atomic number and could be quite significant for heavy elements. Exotic physics arising from significant SOC include the emergent phases in Mott insulators with strong SOC and the exploded works on topological insulators (TI). For the first research thread, the combined effects of strong electronic correlations with SOC can lead to a plethora of emergent novel quantum states. The second research thread which also involves strong SOC and correlated electrons lies at the intersection of topological insulator and Kondo insulator. In this thesis, we first present an extensive nuclear magnetic resonance (NMR) study of 23Na in Ba2NaOsO6, a typical Mott insulator with SOC. We measured 23Na NMR spectra as a function of temperature in different magnetic fields. The NMR measurements reveals a paramagnetic at high temperatures, a broken local point symmetry (BLPS) phase at intermediate temperatures and a canted ferromagnetic phase at low temperatures. Most importantly, we determine the field-temperature phase diagram of Ba2NaOsO6 which shows that the intermediate BLPS phase extends to wider range in high fields. Furthermore, by adopting numerical calculation, we confirm that the breaking of local point symmetry is not due to trivial intrinsic structure instability but is due to multipolar interaction. Next, angle dependence of NMR spectra show that the canted ferromagnetic order is suppressed along certain direction at low temperatures. Secondly, we performed NMR measurements of spin-lattice relaxation (T1) on 11B of Kondo insulator SmB6 at ultra-low temperatures in various magnetic fields. We observed constant low-energy density-of-states (DOS) which corresponds to gapless excitation. Advisors/Committee Members: Mitrovic, Vesna (Advisor), Valles, James (Reader), Marston, Brad (Reader).

Subjects/Keywords: Nuclear magnetic resonance

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APA (6^th Edition):

Liu, W. (2017). NMR Study of Materials with Significant Spin-Orbit Coupling and Transparent Oxide Films. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:792641/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Liu, Wencong. “NMR Study of Materials with Significant Spin-Orbit Coupling and Transparent Oxide Films.” 2017. Thesis, Brown University. Accessed July 22, 2019. https://repository.library.brown.edu/studio/item/bdr:792641/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Liu, Wencong. “NMR Study of Materials with Significant Spin-Orbit Coupling and Transparent Oxide Films.” 2017. Web. 22 Jul 2019.

Vancouver:

Liu W. NMR Study of Materials with Significant Spin-Orbit Coupling and Transparent Oxide Films. [Internet] [Thesis]. Brown University; 2017. [cited 2019 Jul 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:792641/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Liu W. NMR Study of Materials with Significant Spin-Orbit Coupling and Transparent Oxide Films. [Thesis]. Brown University; 2017. Available from: https://repository.library.brown.edu/studio/item/bdr:792641/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of St. Andrews

25. Matthew, Shona. The development and assessment of cardiac magnetic resonance imaging for the detection of age- and disease-related changes in the human heart .

Degree: 2012, University of St. Andrews

URL: http://hdl.handle.net/10023/3558

► Cardiovascular disease (CVD) is a term used to describe a variety of diseases and events that impact the heart and circulatory system. CVD is the… (more)

▼ Cardiovascular disease (CVD) is a term used to describe a variety of diseases and events that impact the heart and circulatory system. CVD is the United Kingdom’s (UKs) biggest killer, causing more than 50,000 premature deaths each year. Early recognition of the potential for magnetic resonance imaging (MRI) to provide a versatile, non-ionising, non-invasive, technique for the assessment of CVD resulted in the modality becoming an area of intense interest in the research, radiology and cardiology communities. The first half of this thesis reviews some of the key developments in magnetic resonance hardware and software that have led to cardiac magnetic resonance imaging (CMRI) emerging as a reliable and reproducible tool, with a range of applications ideally suited for the evaluation of cardiac morphology, function, viability, valvular disease, perfusion, and congenital cardiomyopathies. In addition to this, the advantages and challenges of imaging at 3.0T in comparison to 1.5T are discussed. The second half of this thesis presents a number of investigations that were specifically designed to explore the capability of CMRI to accurately detect subtle age and disease related changes in the human heart. Our investigations begin with a study at 1.5T that explores the clinical and scientific significance of the less frequently used measure of right ventricular function to test the hypothesis that the inclusion of this data provides a more informative assessment of overall cardiac function. The focus then shifts to imaging at 3.0T and the challenges of optimising cardiac imaging at this field strength are discussed. Normal quantitative parameters of cardiac function are established at this field strength for the left ventricle and the left atrium of local volunteers. These values are used to investigate disease related changes in left ventricle and left atrium of distinct patient cohorts. This work concludes by investigating the impact of gadolinium-based contrast agents on the quantitative parameters of cardiac function. Advisors/Committee Members: Dunn, Malcolm H (advisor), Lerski, Richard (advisor), Houston, Graeme (advisor).

Subjects/Keywords: Cardiac; Magnetic resonance

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APA (6^th Edition):

Matthew, S. (2012). The development and assessment of cardiac magnetic resonance imaging for the detection of age- and disease-related changes in the human heart . (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/3558

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Matthew, Shona. “The development and assessment of cardiac magnetic resonance imaging for the detection of age- and disease-related changes in the human heart .” 2012. Thesis, University of St. Andrews. Accessed July 22, 2019. http://hdl.handle.net/10023/3558.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Matthew, Shona. “The development and assessment of cardiac magnetic resonance imaging for the detection of age- and disease-related changes in the human heart .” 2012. Web. 22 Jul 2019.

Vancouver:

Matthew S. The development and assessment of cardiac magnetic resonance imaging for the detection of age- and disease-related changes in the human heart . [Internet] [Thesis]. University of St. Andrews; 2012. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/10023/3558.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Matthew S. The development and assessment of cardiac magnetic resonance imaging for the detection of age- and disease-related changes in the human heart . [Thesis]. University of St. Andrews; 2012. Available from: http://hdl.handle.net/10023/3558

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of St Andrews

26. Motion, Claire Louise. Improving the sensitivity and utility of pulsed dipolar experiments in EPR at 94 GHz.

Degree: PhD, 2018, University of St Andrews

URL: http://hdl.handle.net/10023/13969

► Pulsed dipolar spectroscopy (PDS) is an electron paramagnetic resonance (EPR) technique, used to conduct long range distance measurements in proteins in the nanometre range. This… (more)

Subjects/Keywords: Electron paramagnetic resonance; Pulsed dipolar spectroscopy; Instrumentation; Magnetic resonance; Electron paramagnetic resonance spectroscopy

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APA (6^th Edition):

Motion, C. L. (2018). Improving the sensitivity and utility of pulsed dipolar experiments in EPR at 94 GHz. (Doctoral Dissertation). University of St Andrews. Retrieved from http://hdl.handle.net/10023/13969

Chicago Manual of Style (16^th Edition):

Motion, Claire Louise. “Improving the sensitivity and utility of pulsed dipolar experiments in EPR at 94 GHz.” 2018. Doctoral Dissertation, University of St Andrews. Accessed July 22, 2019. http://hdl.handle.net/10023/13969.

MLA Handbook (7^th Edition):

Motion, Claire Louise. “Improving the sensitivity and utility of pulsed dipolar experiments in EPR at 94 GHz.” 2018. Web. 22 Jul 2019.

Vancouver:

Motion CL. Improving the sensitivity and utility of pulsed dipolar experiments in EPR at 94 GHz. [Internet] [Doctoral dissertation]. University of St Andrews; 2018. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/10023/13969.

Council of Science Editors:

Motion CL. Improving the sensitivity and utility of pulsed dipolar experiments in EPR at 94 GHz. [Doctoral Dissertation]. University of St Andrews; 2018. Available from: http://hdl.handle.net/10023/13969

University of Utah

27. Lee, Sang-Yun. Pulsed electrically and optically detected magnetic resonance spectroscopy of disordered semiconductors.

Degree: PhD, Physics & Astronomy, 2011, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/316/rec/1989

► Electrically and Optically detected magnetic resonance (EDMR and ODMR) spectroscopy allows investigation of the microscopic nature of paramagnetic centers which influence the electrical or optoelectronic… (more)

▼ Electrically and Optically detected magnetic resonance (EDMR and ODMR) spectroscopy allows investigation of the microscopic nature of paramagnetic centers which influence the electrical or optoelectronic properties of semiconductors. Traditionally, EDMR and ODMR have been conducted as adiabatic magnetic field sweep spectroscopies under continuous wave (cw) application of electromagnetic fields. It is shown here that information about the dynamics of spin–dependent processes obtained from cwEDMR and cwODMR is determined by many electronic- and spin-relaxation parameters, which make the interpretation of experimental data quantitatively ambiguous. In contrast, it is shown that transient EDMR and ODMR experiments, so called pulsed (p)EDMR and pODMR, are significantly less ambiguous. For spin-dependent processes based on intermediate pairs of paramagnetic states, the cwEDMR and cwODMR as well as pEDMR and pODMR dynamics are derived analytically and the application of these results for the interpretation of experimental data is discussed for two examples: (i) The pEDMR study of spin-dependent recombination in silicon rich hydrogenated amorphous silicon nitride (a-SiNx:H) which showed the presence of a variety of mechanisms such as dangling bond recombination through weakly spin-coupled paramagnetic states but also recombination through band tail states which were strongly dipolar or exchange coupled. These processes had previously been observed in hydrogenated amorphous silicon (a-Si:H). However, while in a-Si:H, these processes took place solely as geminate recombination, they were of nongeminate nature in the a-SiNx:H. (ii) The pODMR study of excitonic recombination in a ?-conjugated polymer, namely, poly[2-methoxy-5-(20- ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV). The presence of magnetic resonance induced spin–beat oscillations in the fluorescence intensity was confirmed. Based on the existing polaron–pair recombination model, previously pEDMR–detected beat signals seen here with pODMR in an identical manner. Two types of MEH-PPV, one fully hydrogenated and one partially deuterated were subjected to pODMR. The deuterated materials showed a different beat oscillation dependence of the driving field power pattern which was indicative of smaller hyperfine fields in the deuterated material.

Subjects/Keywords: Electrically detected magnetic resonance; Electron spin resonance; Magnetic resonance; MEH-PPV; Optically detected magnetic resonance; Silicon rich silicon nitride

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APA (6^th Edition):

Lee, S. (2011). Pulsed electrically and optically detected magnetic resonance spectroscopy of disordered semiconductors. (Doctoral Dissertation). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/316/rec/1989

Chicago Manual of Style (16^th Edition):

Lee, Sang-Yun. “Pulsed electrically and optically detected magnetic resonance spectroscopy of disordered semiconductors.” 2011. Doctoral Dissertation, University of Utah. Accessed July 22, 2019. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/316/rec/1989.

MLA Handbook (7^th Edition):

Lee, Sang-Yun. “Pulsed electrically and optically detected magnetic resonance spectroscopy of disordered semiconductors.” 2011. Web. 22 Jul 2019.

Vancouver:

Lee S. Pulsed electrically and optically detected magnetic resonance spectroscopy of disordered semiconductors. [Internet] [Doctoral dissertation]. University of Utah; 2011. [cited 2019 Jul 22]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/316/rec/1989.

Council of Science Editors:

Lee S. Pulsed electrically and optically detected magnetic resonance spectroscopy of disordered semiconductors. [Doctoral Dissertation]. University of Utah; 2011. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/316/rec/1989

University of Georgia

28. Liu, Shan. NMR active substrates for structure and function studies of sialyltransferases.

Degree: PhD, Chemistry, 2008, University of Georgia

URL: http://purl.galileo.usg.edu/uga_etd/liu_shan_200812_phd

► Novel nuclear magnetic resonance (NMR) methods have been developed for structure and function studies of sialyltransferases interacting with synthetic substrates. The presented methodology has been… (more)

▼ Novel nuclear magnetic resonance (NMR) methods have been developed for structure and function studies of sialyltransferases interacting with synthetic substrates. The presented methodology has been applied to a mammalian sialyltransferase ST6Gal-1 which catalyzes the transfer of sialic acids to the terminal galactose of carbohydrates on the cell surface. Conventional structural methods have failed to produce a structure of ST6Gal-1 because of its membrane association, native glycosylation, and poor expression in bacterial hosts. A new methodology is urgently needed to provide a precise molecular structure of ST6Gal-1 and the geometries of bound ligands. The provided information can be used in the design of specific inhibitors to regulate the distribution of sialic acids in biological systems. NMR is a unique tool to study a broad range of proteins that resist study by X-ray crystallography. The methodology takes advantage of isotopically-labeled and nitroxide-labeled substrates which can probe geometric properties of the active site of a protein. Protein-ligand interactions are usually the key to understanding the function of enzymes. This work investigated the conformation, orientation, kinetics, and protein-contact surfaces of bound ligands. When nitroxide-labeled substrates and isotopically-labeled protein were utilized, five phenylalanines in and near the protein active site were identified and their distances to the substrates were calculated based on NMR data. This distance-sensitive nitroxide-labeled probe also was used to derive the relative placement of substrates simultaneously present in the active site of ST6Gal-1. The above approach has improved our structural understanding of ST6Gal-1 and provided an important step toward the structure-based design of efficient inhibitors. The synthetic strategies and synthesized compounds are applicable to other sialyltransferases, and the presented NMR labeling methods will be highly valuable for studying the structures of various glycoproteins. Advisors/Committee Members: James Prestegard.

Subjects/Keywords: nuclear magnetic resonance (NMR)

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APA (6^th Edition):

Liu, S. (2008). NMR active substrates for structure and function studies of sialyltransferases. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/liu_shan_200812_phd

Chicago Manual of Style (16^th Edition):

Liu, Shan. “NMR active substrates for structure and function studies of sialyltransferases.” 2008. Doctoral Dissertation, University of Georgia. Accessed July 22, 2019. http://purl.galileo.usg.edu/uga_etd/liu_shan_200812_phd.

MLA Handbook (7^th Edition):

Liu, Shan. “NMR active substrates for structure and function studies of sialyltransferases.” 2008. Web. 22 Jul 2019.

Vancouver:

Liu S. NMR active substrates for structure and function studies of sialyltransferases. [Internet] [Doctoral dissertation]. University of Georgia; 2008. [cited 2019 Jul 22]. Available from: http://purl.galileo.usg.edu/uga_etd/liu_shan_200812_phd.

Council of Science Editors:

Liu S. NMR active substrates for structure and function studies of sialyltransferases. [Doctoral Dissertation]. University of Georgia; 2008. Available from: http://purl.galileo.usg.edu/uga_etd/liu_shan_200812_phd

University of Georgia

29. Yu, Fei. Structures and interactions of N-acetylated oligosaccharides: new NMR approaches.

Degree: PhD, Chemistry, 2008, University of Georgia

URL: http://purl.galileo.usg.edu/uga_etd/yu_fei_200812_phd

► Oligosaccharides are of central importance in the development and maintenance of biological systems. They are found free in solution and as constituents of proteins (glycoproteins)… (more)

Subjects/Keywords: Nuclear Magnetic Resonance (NMR)

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APA (6^th Edition):

Yu, F. (2008). Structures and interactions of N-acetylated oligosaccharides: new NMR approaches. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/yu_fei_200812_phd

Chicago Manual of Style (16^th Edition):

Yu, Fei. “Structures and interactions of N-acetylated oligosaccharides: new NMR approaches.” 2008. Doctoral Dissertation, University of Georgia. Accessed July 22, 2019. http://purl.galileo.usg.edu/uga_etd/yu_fei_200812_phd.

MLA Handbook (7^th Edition):

Yu, Fei. “Structures and interactions of N-acetylated oligosaccharides: new NMR approaches.” 2008. Web. 22 Jul 2019.

Vancouver:

Yu F. Structures and interactions of N-acetylated oligosaccharides: new NMR approaches. [Internet] [Doctoral dissertation]. University of Georgia; 2008. [cited 2019 Jul 22]. Available from: http://purl.galileo.usg.edu/uga_etd/yu_fei_200812_phd.

Council of Science Editors:

Yu F. Structures and interactions of N-acetylated oligosaccharides: new NMR approaches. [Doctoral Dissertation]. University of Georgia; 2008. Available from: http://purl.galileo.usg.edu/uga_etd/yu_fei_200812_phd

University of Georgia

30. Wen, Bo. IR-UV double resonance spectroscopy on NO-X van der Waals complexes.

Degree: PhD, Physics, 2010, University of Georgia

URL: http://purl.galileo.usg.edu/uga_etd/wen_bo_201005_phd

► A modified discharge apparatus with the ability to select ions with different masses to arrive at the ion detector enabled us to measure a number… (more)

Subjects/Keywords: IR-UV double resonance

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APA (6^th Edition):

Wen, B. (2010). IR-UV double resonance spectroscopy on NO-X van der Waals complexes. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/wen_bo_201005_phd

Chicago Manual of Style (16^th Edition):

Wen, Bo. “IR-UV double resonance spectroscopy on NO-X van der Waals complexes.” 2010. Doctoral Dissertation, University of Georgia. Accessed July 22, 2019. http://purl.galileo.usg.edu/uga_etd/wen_bo_201005_phd.

MLA Handbook (7^th Edition):

Wen, Bo. “IR-UV double resonance spectroscopy on NO-X van der Waals complexes.” 2010. Web. 22 Jul 2019.

Vancouver:

Wen B. IR-UV double resonance spectroscopy on NO-X van der Waals complexes. [Internet] [Doctoral dissertation]. University of Georgia; 2010. [cited 2019 Jul 22]. Available from: http://purl.galileo.usg.edu/uga_etd/wen_bo_201005_phd.

Council of Science Editors:

Wen B. IR-UV double resonance spectroscopy on NO-X van der Waals complexes. [Doctoral Dissertation]. University of Georgia; 2010. Available from: http://purl.galileo.usg.edu/uga_etd/wen_bo_201005_phd

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Open Access Theses and Dissertations