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Littérature scientifique sur le sujet « Proton and phosphorus Nuclear Magnetic Resonance »

Auteur : Grafiati
Publié le 9 mars 2023
Mis à jour le 10 mars 2023

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Articles de revues sur le sujet "Proton and phosphorus Nuclear Magnetic Resonance"

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Ghasemi, Mir Majid, and Manouchehr Bahrami. "MEMS NUCLEAR MAGNETIC RESONANCE MICROCOIL." Biomedical Engineering: Applications, Basis and Communications 29, no. 02 (2017): 1750009. http://dx.doi.org/10.4015/s1016237217500090.

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NMR is one of the important analytic tools which is used to obtain certain information such as metabolic concentrations in neural or muscular tissues. In some other important applications such as proton decoupling, it is necessary to design NMR transmitters/receivers capable of operating at multiple frequencies, while maintaining a good performance at each frequency. In this work, a new nuclear magnetic resonance (NMR) receiver microcoil based on MEMS technology is proposed. The designed structure uses MEMS microswitches with low contact resistance and NMR-based actuation mechanism. The propos
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Sugiyama, Hiroshi, Yasuhisa Senda, and Jun-ichi Ishiyama. "Proton, carbon, and phosphorus nuclear magnetic resonance and conformational studies on phosphate esters." Journal of the Chemical Society, Perkin Transactions 2, no. 3 (1987): 391. http://dx.doi.org/10.1039/p29870000391.

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Stuhrmann, Heinrich B. "Small-angle scattering and its interplay with crystallography, contrast variation in SAXS and SANS." Acta Crystallographica Section A Foundations of Crystallography 64, no. 1 (2007): 181–91. http://dx.doi.org/10.1107/s0108767307046569.

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Methods of contrast variation are tools that are essential in macromolecular structure research. Anomalous dispersion of X-ray diffraction is widely used in protein crystallography. Recent attempts to extend this method to native resonant labels like sulfur and phosphorus are promising. Substitution of hydrogen isotopes is central to biological applications of neutron scattering. Proton spin polarization considerably enhances an existing contrast prepared by isotopic substitution. Concepts and methods of nuclear magnetic resonance (NMR) become an important ingredient in neutron scattering from
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Khan, Shahid A., I. Jane Cox, Andrew V. Thillainayagam, Devinder S. Bansi, Howard C. Thomas, and Simon D. Taylor-Robinson. "Proton and phosphorus-31 nuclear magnetic resonance spectroscopy of human bile in hepatopancreaticobiliary cancer." European Journal of Gastroenterology & Hepatology 17, no. 7 (2005): 733–38. http://dx.doi.org/10.1097/00042737-200507000-00007.

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Rivera, Debra. "Emerging Role for 7T MRI and Metabolic Imaging for Pancreatic and Liver Cancer." Metabolites 12, no. 5 (2022): 409. http://dx.doi.org/10.3390/metabo12050409.

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Advances in magnet technologies have led to next generation 7T magnetic resonance scanners which can fit in the footprint and price point of conventional hospital scanners (1.5–3T). It is therefore worth asking if there is a role for 7T magnetic resonance imaging and spectroscopy for the treatment of solid tumor cancers. Herein, we survey the medical literature to evaluate the unmet clinical needs for patients with pancreatic and hepatic cancer, and the potential of ultra-high field proton imaging and phosphorus spectroscopy to fulfil those needs. We draw on clinical literature, preclinical da
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Brauer, Manfred, and Steven Locke. "Proton magnetic resonance imaging and phosphorus-31 magnetic resonance spectroscopy studies of bromobenzene-induced liver damage in the rat." Magnetic Resonance Imaging 10, no. 2 (1992): 257–67. http://dx.doi.org/10.1016/0730-725x(92)90485-i.

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van der Kemp, Wybe J. M., Bertine L. Stehouwer, Vincent O. Boer, Peter R. Luijten, Dennis W. J. Klomp, and Jannie P. Wijnen. "Proton and phosphorus magnetic resonance spectroscopy of the healthy human breast at 7 T." NMR in Biomedicine 30, no. 2 (2016): e3684. http://dx.doi.org/10.1002/nbm.3684.

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Yan, Yanan, and Bing Liang. "Flame-retardant behavior and mechanism of a DOPO-based phosphorus–nitrogen flame retardant in epoxy resin." High Performance Polymers 31, no. 8 (2018): 885–92. http://dx.doi.org/10.1177/0954008318805794.

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A novel flame-retardant additive, 6,6′,6″-((1,3,5-triazine-2,4,6 triyl) tris (azanediyl)) tris (dibenzo[c,e][1,2]oxaphosphinine 6-oxide) (DOPO-M), was synthesized from melamine and 9,10-dihy-dro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO). The structure of DOPO-M was characterized by Fourier transform infrared (FTIR) spectroscopy, proton (1H) and phosphorous (31P) nuclear magnetic resonance (NMR) spectroscopies, and electrospray ionization mass spectroscopy (ESI-MS). DOPO-M was blended into epoxy resin (EP) to prepare flame-retardant EPs. The flame-retardant and thermal properties of EPs cure
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Harrison, Philip G., and Thakor Kikabhai. "Proton and phosphorus-31 nuclear magnetic resonance study of zinc(II)O,O′-dialkyl dithiophosphates in solution." J. Chem. Soc., Dalton Trans., no. 4 (1987): 807–14. http://dx.doi.org/10.1039/dt9870000807.

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Théberge, Jean, Yousef Al-Semaan, J. Eric Jensen, et al. "Comparative study of proton and phosphorus magnetic resonance spectroscopy in schizophrenia at 4 Tesla." Psychiatry Research: Neuroimaging 132, no. 1 (2004): 33–39. http://dx.doi.org/10.1016/j.pscychresns.2004.08.001.

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Thèses sur le sujet "Proton and phosphorus Nuclear Magnetic Resonance"

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Potwarka, John J. "A proton decoupled phosphorus-31 nuclear magnetic resonance spectroscopy study of schizophrenia." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0019/MQ58006.pdf.

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SIOTTO, MICHELA BARBARA. "Study of the biodegradation in soil of new generation plactics." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2011. http://hdl.handle.net/10281/19950.

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The intense use of plastic contributes to increase the amount of municipal waste that are generally disposed in landfill. For some applications and sectors, an important alternative to the conventional plastic materials can be found in the use of the new generation materials: the biodegradable polymers. Their use can be an alternative to landfill disposal and can thus reduce the cost of waste management and the accumulation in the environment. The biodegradable polymers, in fact, are used by microorganisms as source of carbon and are converted by into carbon dioxide (or methane), water and min
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Meng, Jiqun J. "Line scan proton magnetic resonance spectroscopic imaging." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36963.

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Kendall, Nigel Lincoln. "Nuclear magnetic resonance study of new polycyclic phosphorus compounds." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.481631.

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Wilkes, Philip John. "NMR of phosphorus-containing solids." Thesis, Durham University, 1987. http://etheses.dur.ac.uk/6666/.

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The purpose of this work has been the determination of structure in solids using the technique of solid-state nuclear magnetic resonance spectroscopy. High-resolution (^31) p NMR spectra have been obtained for a range of phosphate species. A number of techniques have been applied to these systems including cross-polarization, magic angle spinning, and high power proton decoupling. Characterisation using additional NMR techniques such as (^1) H cramps has been carried out wherever possible. The results obtained yield molecular and crystallographic information consistent with data from X-ray dif
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Florian, Catarina Ligia. "Proton nuclear magnetic resonance studies of human glioma cell lines." Thesis, University College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309218.

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Sitanggang, M. Linda. "Application of proton nuclear magnetic resonance in drug metabolism studies." Thesis, University of Bath, 1988. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380409.

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Clarke, William. "Human cardiac magnetic resonance spectroscopy." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:b75351dc-e4eb-4856-b901-4ba486ffe175.

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The status of the myocardial 'high energy phosphate' metabolism is a sensitive marker of the occurrence and progression of heart failure. Magnetic resonance spectroscopy enables non-invasive, direct and potentially quantitative measurements of the phosphate containing metabolites present in the human myocardium. This thesis is primarily concerned with the creation of measurement techniques for cardiac phosphorus magnetic resonance spectroscopy (<sup>31</sup>P-MRS) at the 7 tesla field strength. Chapter 1 provides an overview of the physical basis of magnetic resonance spectroscopy, the myocard
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Princz, Eva J. "A proton nuclear magnetic resonance study of human tumor biopsy samples." Thesis, University of Ottawa (Canada), 1989. http://hdl.handle.net/10393/6000.

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Vannini, Marianna <1986&gt. "Valorisation of organic waste: new developments from proton nuclear magnetic resonance characterization." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6946/1/Vannini_Marianna_tesi.pdf.

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The last half-century has seen a continuing population and consumption growth, increasing the competition for land, water and energy. The solution can be found in the new sustainability theories, such as the industrial symbiosis and the zero waste objective. Reducing, reusing and recycling are challenges that the whole world have to consider. This is especially important for organic waste, whose reusing gives interesting results in terms of energy release. Before reusing, organic waste needs a deeper characterization. The non-destructive and non-invasive features of both Nuclear Magnetic Reson
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Livres sur le sujet "Proton and phosphorus Nuclear Magnetic Resonance"

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1942-, Burt C. Tyler, ed. Phosphorus NMR in biology. CRC Press, 1987.

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Laboratory guide to proton NMR spectroscopy. Blackwell Scientific Publications, 1988.

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1933-, Tebby John C., ed. CRC handbook of phosphorus-31 nuclear magnetic resonance data. CRC Press, 1991.

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1935-, Verkade John G., and Quin Louis D. 1928-, eds. Phosphorus-31 NMR spectroscopy in stereochemical analysis. VCH Publishers, 1987.

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André, Lirette, and Liu Zengfu, eds. An atlas of chicken embryonic developemnt using proton nuclear magnetic resonance imaging. Nova Scotia Agricultural College, Dept. of Animal Science, 1992.

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Hollerton, J. C. (John C.), 1959-, ed. Essential practical NMR for organic chemistry. Wiley, 2011.

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Tho, Pham Quang, and Pham Quang Tho, eds. Proton and carbon NMR spectra of polymers. Penton Press, 1991.

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Tho, Pham Quang, and Pham Quang Tho, eds. Proton and carbon NMR spectra of polymers. 5th ed. Wiley, 2003.

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1928-, Quin Louis D., and Verkade John G. 1935-, eds. Phosphorus-31 NMR spectral properties in compound characterization and structural analysis. VCH, 1994.

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J, Pouchert Charles, Behnke Jacqlynn, and Aldrich Chemical Company, eds. The Aldrich library of ¹³C and ¹H FT NMR spectra. Aldrich Chemical Co., 1992.

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Chapitres de livres sur le sujet "Proton and phosphorus Nuclear Magnetic Resonance"

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Bendel, P. "Proton NMR Studies on DNA Structure." In Nuclear Magnetic Resonance. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82609-2_4.

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Noodleman, L., J. L. Chen, D. A. Case, et al. "Isotropic Proton Hyperfine Coupling in High Potential [Fe4S4]3+ Models." In Nuclear Magnetic Resonance of Paramagnetic Macromolecules. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8573-6_16.

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Gupta, R. R., M. D. Lechner, and B. M. Mikhova. "General Introduction to Nuclear Magnetic Resonance (NMR)." In Chemical Shifts and Coupling Constants for Phosphorus-31. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41613-2_1.

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Gupta, R. R., M. D. Lechner, and B. M. Mikhova. "General Introduction to Nuclear Magnetic Resonance (NMR)." In Chemical Shifts and Coupling Constants for Phosphorus-31. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41599-9_1.

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Sauter, R., M. Schneider, K. Wicklow, and H. Kolem. "Techniques for Localisation and Signal Improvement in In Vivo Proton and Phosphorus MR Spectroscopy." In Magnetic Resonance Scanning and Epilepsy. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2546-2_42.

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Di Vona, Maria Luisa, Emanuela Sgreccia, and Sebastiano Tosto. "Diffusion in Solid Proton Conductors: Theoretical Aspects and Nuclear Magnetic Resonance Analysis." In Solid State Proton Conductors. John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9781119962502.ch3.

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Schaumann, Gabriele E. "Proton Nuclear Magnetic Resonance (NMR) Relaxometry in Soil Science." In Encyclopedia of Agrophysics. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-90-481-3585-1_223.

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Braunschweiger, Paul G., and Marvin A. Rich. "Application of Proton Nuclear Magnetic Resonance to Tumor Biology." In Cancer Biology and Therapeutics. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4757-9564-6_10.

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Yadav, L. D. S. "Proton Nuclear Magnetic Resonance (PMR or 1H NMR) Spectroscopy." In Organic Spectroscopy. Springer Netherlands, 2005. http://dx.doi.org/10.1007/978-1-4020-2575-4_5.

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Macedo, Anjos L., and José J. G. Moura. "1D and 2D Proton NMR Studies on [3Fe-4S] and [4Fe-4S] Ferredoxins Isolated from Desulfovibrio gigas." In Nuclear Magnetic Resonance of Paramagnetic Macromolecules. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8573-6_15.

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Actes de conférences sur le sujet "Proton and phosphorus Nuclear Magnetic Resonance"

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Morawitz, Falk. "Multilayered Narration in Electroacoustic Music Composition Using Nuclear Magnetic Resonance Data Sonification and Acousmatic Storytelling." In ICAD 2019: The 25th International Conference on Auditory Display. Department of Computer and Information Sciences, Northumbria University, 2019. http://dx.doi.org/10.21785/icad2019.052.

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Nuclear magnetic resonance (NMR) spectroscopy is an analytical tool to determine the structure of chemical compounds. Unlike other spectroscopic methods, signals recorded using NMR spectrometers are frequently in a range of zero to 20000 Hz, making direct playback possible. As each type of molecule has, based on its structural features, distinct and predictable features in its NMR spectra, NMR data sonification can be used to create auditory ‘fingerprints’ of molecules. This paper describes the methodology of NMR data sonification of the nuclei nitrogen, phosphorous, and oxygen and analyses th
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Wang, Ji S., and Chun F. Xu. "New results on proton nuclear magnetic resonance of a-SiN:H films." In Shanghai - DL tentative, edited by Shixun Zhou and Yongling Wang. SPIE, 1991. http://dx.doi.org/10.1117/12.47337.

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Bryar, Traci R., and Rosemary J. Knight. "Detection Limits for Immiscible Liquid Organic Contaminants Using Proton Nuclear Magnetic Resonance." In Symposium on the Application of Geophysics to Engineering and Environmental Problems 2003. Environment and Engineering Geophysical Society, 2003. http://dx.doi.org/10.4133/1.2923242.

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R. Bryar, Traci, and Rosemary J. Knight. "Detection Limits For Immiscible Liquid Organic Contaminants Using Proton Nuclear Magnetic Resonance." In 16th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. European Association of Geoscientists & Engineers, 2003. http://dx.doi.org/10.3997/2214-4609-pdb.190.pet02.

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Li, Yue-Rong, Gavin Pereira, Masoud Kasrai, and Peter R. Norton. "Studies on ZDDP Anti-Wear Films Formed Under the Different Conditions by XANES Spectroscopy, Atomic Force Microscopy and 31P NMR." In ASME/STLE 2007 International Joint Tribology Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ijtc2007-44218.

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Antiwear (AW) films, generated from a mineral base oil containing zinc dialkyl dithiophosphate (ZDDP) additive, were extensively studied. These films were formed at various conditions such as different temperatures, various loads and rubbing times. The surface morphology of these films was investigated using atomic force microscopy (AFM) and the surface roughness of these films has been calculated from the images. X-ray absorption near edge structure (XANES) spectroscopy has been used to characterize the chemistry of these films. The intensity of phosphorus K-edge was also used to monitor the
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Ni, Qingwen, and Todd Bredbenner. "Characterization of Human Cortical and Trabecular Bone Structural Change by NMR and Micro-CT." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80336.

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The techniques of low-field pulsed proton nuclear magnetic resonance (NMR) spin relaxation and Micro-CT are described for assessment of structural changes of human cortical and trabecular bone in vitro. The technique involves spin-spin relaxation measurement and inversion spin-spin spectral analysis methods for NMR. From NMR measurement, the CPMG T2 relaxation data can be inverted to T2 relaxation distribution and this distribution then can be transformed to a pore size distribution with the longer relaxation times corresponding to larger pores. In Micro-CT measurement, each trabecular bone sp
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Martin, Jacob, Austin Downey, and Sang Hee Won. "Compact Time Domain NMR Design for the Determination of Hydrogen Content in Gas Turbine Fuels." In ASME 2022 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/detc2022-90023.

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Abstract Low-resolution nuclear magnetic resonance is a tool that has been employed for many years as an effective method for analyzing complex materials in a non-destructive fashion. This work has been aimed at the development of a prototype compact NMR system with the potential to be utilized for simple and rapid in situ measurements of key properties of jet fuels. The compact system consists of a neodymium magnet configuration with a field strength of 0.645 T, custom printed circuit boards, and radio frequency electronics. It is driven by a National Instruments PXI chassis fitted with modul
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Daino, Michael M., and Satish G. Kandlikar. "Evaluation of Imaging Techniques Applied to Water Management Research in PEMFCs." In ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2009. http://dx.doi.org/10.1115/icnmm2009-82031.

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Water management in proton exchange membrane fuel cells (PEMFCs) is critical in efficient operation of fuel cells during normal operation as well as purge and start-up conditions. Insufficient membrane hydration impedes the flow of protons and an overabundance of water obstructs the flow of reactants in the gas diffusion layer (GDL) and in gas distribution channels. These two extremes of water content in PEMFCs significantly reduce performance and efficiency, causing material degradation and potential failure. Visualization and quantitative measurement of water content in PEMFCs lead to greate
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Heo, Yunseon, and Henry A. Sodano. "Thermo-Responsive Shape Memory Self-Healing Polyurethanes and Composites With Continuous Carbon Fiber Reinforcement." In ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/smasis2015-8916.

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Thermally responsive self-healing polyurethanes (1DA1T, 1.5DA1T, and 2DA1H) with shape memory property were developed and the fully reversible Diels-Alder (DA) and retro Diels-Alder (rDA) reactions were employed for the healing mechanism. The transition temperatures of the DA and rDA reactions were confirmed through a differential scanning calorimetry and the molecular level of analysis on the reversibility and the repeatability between the DA and rDA reactions were completed though a variable temperature proton nuclear magnetic resonance at the reaction temperatures. Also, compact tension spe
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Aguiar, Janaina I. S., Hamidreza Samouei, and Amir Mahmoudkhani. "Uncovering Mysteries of Waxphaltenes: Meticulous Experimental Studies of Field and Lab Deposits Unveil Nature of Wax-Asphaltene Intermolecular Interactions." In SPE International Conference on Oilfield Chemistry. SPE, 2021. http://dx.doi.org/10.2118/204315-ms.

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Abstract In recent years, the utilization of modern sampling tools provided access to the field deposits from several offshore and onshore wells producing asphaltenic crudes. Compositional analysis of field deposits revealed the presence of asphaltenes and wax as major fractions, while system conditions traditionally implied precipitation and deposition of asphaltenes only. Most of the previous studies on organic deposition have been conducted with the key assumption that aggregation and precipitation of wax and asphaltene occur independently. A few researchers investigated the solubility para
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Rapports d'organisations sur le sujet "Proton and phosphorus Nuclear Magnetic Resonance"

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Smith, R. E. Phosphorus-31 NMR (nuclear magnetic resonance) analysis of gold plating baths. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/5098253.

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Kong, Zueqian. Characterization of proton exchange membrane materials for fuel cells by solid state nuclear magnetic resonance. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/976274.

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Logan, Thomas P., and David A. Sartori. Proton Nuclear Magnetic Resonance Spectra of Sulfur Mustard and 2-Chloroethyl Ethyl Sulfide in Selected Solvents. Defense Technical Information Center, 2002. http://dx.doi.org/10.21236/ada411995.

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Doetschman, D. C., R. C. Mehlenbacher, and O. Ito. A study of coal extraction with electron paramagnetic resonance (EPR) and proton nuclear magnetic resonance relaxation techniques. Quarterly technical progress report, April 1, 1993--June 30, 1993. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10180889.

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White, Thomas, Fernando Fondeur, Charles Coleman, David Diprete, Cecilia Diprete, and Brian Looney. Proton Nuclear Magnetic Resonance (H NMR) of Glycolate in Real Waste: Developing and Testing Analytical Methods for the Savannah River Site Liquid Waste System. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1784925.

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Yee, Sidney. Solution-State Proton Nuclear Magnetic Resonance (NMR) Spectroscopic Studies of the Active Site of Myoglobins in Various Ligated States: Models for Macromolecule-Substrate Binding and Advancement of Paramagnetic NMR Techniques. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.1252.

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Fernando, P. U. Ashvin Iresh, Gilbert Kosgei, Matthew Glasscott, Garrett George, Erik Alberts, and Lee Moores. Boronic acid functionalized ferrocene derivatives towards fluoride sensing. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/44762.

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In this technical report (TR), a robust, readily synthesized molecule with a ferrocene core appended with one or two boronic acid moieties was designed, synthesized, and used toward F- (free fluoride) detection. Through Lewis acid-base interactions, the boronic acid derivatives are capable of binding with F- in an aqueous solution via ligand exchange reaction and is specific to fluoride ion. Fluoride binding to ferrocene causes significant changes in fluorescence or electrochemical responses that can be monitored with field-portable instrumentation at concentrations below the WHO recommended l
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