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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1123 for “"nuclear magnetic resonance"”.
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Nuclear magnetic resonance microscopy
… the design and applications of an improved Nuclear Magnetic Resonance (NMR) microscope, which permits MRI to study small sample sizes ( < 2mm) at high resolution (up to 2[mu]m). The effects of molecular diffusion and local variations in the magnetic susceptibility in NMR microscopy are …
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Nuclear magnetic resonance logging
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1997.
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Nuclear magnetic resonance readable sensors
… of molecular sensors which can be read by magnetic resonance (MR) relaxometry. MR is an advantageous bio-sensor readout because it can be determined from opaque samples and through intervening layers of matter. Wash steps can therefore be avoided in in vitro MR assays and non-invasive …
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Nuclear magnetic resonance spectroscopy and ultrasound
… phase. These changes can then be detected by nuclear magnetic resonance (NMR) in spin-lattice and spin-spin relaxation times. The objective being to develop a method capable of reducing the pulsed NMR acquisition times of slowly relaxing nuclei. The thesis describes the theoretical principles …
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High-Resolution Nuclear Magnetic Resonance Microspectroscopy
… Microcoils have been designed for higher magnetic fields (500 MHz) and also now incorporate a lock channel for longer two-dimensional (2D) experiments. Reference deconvolution and wavelet noise reduction have been used to address lineshape distortion and low signal-to-noise found in NMR …
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Nuclear Magnetic Resonance in Alkali-Metals
Made available in DSpace on 2015-05-12T17:11:47Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0007851.PDF: 4595068 bytes, checksum: a68304a767f1725198e01e7429742e17 (MD5) Previous issue date: 1954
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Nuclear Magnetic Resonance in Alkali Metals
Submitted by Jenny Wong-Welch (wongwel2@illinois.edu) on 2013-07-18T18:55:46Z No. of bitstreams: 1 1954_holcomb.pdf: 4595068 bytes, checksum: a68304a767f1725198e01e7429742e17 (MD5)
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Nuclear magnetic resonance in chromium tribromide.
Massachusetts Institute of Technology. Dept. of Physics. Thesis. 1966. Ph.D.
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Nuclear magnetic resonance microscopy and diffusion
The goal of the work described in this thesis is to develop the methodology and instrumentation for studying neuron physiology and activation in vivo at near cellular resolution. Using biocompatible crosslinked Hemoglobin (xHb) as a contrast agent, we demonstrated partial local oxygen pressure …
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Nuclear Magnetic Resonance in Hydrogen - Metal Systems
Made available in DSpace on 2015-05-12T17:11:38Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0002720.PDF: 7543263 bytes, checksum: 5abff78b79b28755ae1ad2ed6e3780b3 (MD5) Previous issue date: 1951
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Nuclear Magnetic Resonance on the Kondo Effect
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2011-11-08T19:15:36Z No. of bitstreams: 1 1972_lo.pdf: 3080925 bytes, checksum: 84d96cc7ebfc5bf61970aa7f08cd9b18 (MD5)
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Nuclear magnetic resonance study of promoted catalysts
… By performing a $\sp{23}$Na-$\sp{13}$C doubled resonance with adsorbed CO, we determined that at least 22% of the NA in the samples is on the Pt. The $\sp{23}$Na line shows no indication of a Knight shift and the Na spin-lattice relaxation varies as 1/T$\sp2$, suggesting that the Na orbitals mix …
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Nuclear magnetic resonance study of promoted catalysis
… n1. ng 23N a. By 'performing a 23Na- 13C double resonance with adsorbed CO, we determined that at least 22% of the Na in the samples is on the Pt. The 23Na line shows no indication of a Knight shift and the Na spin-lattice relaxation varies as 1/T2 , suggesting that the Na orbitals mix with the …
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Low-field classroom nuclear magnetic resonance system
… This research has led to the ability to observe Nuclear Magnetic Resonance. 'Spin- Lattice' and 'Spin-Spin' relaxation times of glycerin samples can easily be measured. Future work will allow further MRI exploration by incorporating gradient magnetic field coils.
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Towards Multiplexed Nuclear Magnetic Resonance for Environmental Analysis
Nuclear Magnetic Resonance (NMR) is one of the most powerful analytical tools in modern research. Within the scope of environmental analysis, NMR can identify unknown pollutants, examine non-covalent binding in soils and, uniquely, study biochemical changes in living organisms. Here, novel …
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A nuclear magnetic resonance study of UNI₂AL₃
… have been applied to the study of the Al' nuclear magnetic resonance spectrum of a single crystal of UNi2A/3, measured using a steady state technique. A value for the asymmetry of the electric field gradient has also been determined for this material. In addition, the temperature dependence …
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Multinuclear nuclear magnetic resonance investigations in organothallium chemistry.
Thallium-205 chemical shifts have been determined for organothallium(III) derivatives RTlx2 and R2TlX (R = alkyl alicyclic, alkenyl,aryl ; X = anion). … Twenty four new organothallium(III) derivatives have been synthesised and a number of existing syntheses modified.
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Nuclear Magnetic Resonance (Nmr) on the Kondo Effect
Made available in DSpace on 2015-05-12T22:38:51Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7309986.PDF: 2916569 bytes, checksum: 967ea9fcf2d4088b876eefe59106c062 (MD5) Previous issue date: 1972
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High-Resolution Nuclear Magnetic Resonance Studies of Gases
Made available in DSpace on 2014-12-10T23:01:13Z (GMT). No. of bitstreams: 1 7207027.pdf: 2867483 bytes, checksum: 359b1d3b7389d7af71e315eaef882c9a (MD5) Previous issue date: 1971
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