Thermal diffusivity and nuclear spin relaxation: A continuous wave free precession NMR study

Journal of Magnetic Resonance

Volumn 181, Issue 1, 2006, Pages 29-34

  Venâncio, Tiago ^a,b   Engelsberg, Mario ^c   Azeredo, Rodrigo B V ^d   Colnago, Luiz A ^b  

^a UNIVERSITY OF SÃO PAULO   (Brazil)

^b EMBRAPA CERRADOS   (Brazil)

^c FEDERAL UNIVERSITY OF PERNAMBUCO   (Brazil)

^d FLUMINENSE FEDERAL UNIVERSITY   (Brazil)

Author keywords

CWFP; Freezing; Natural polymer; SSFP; Thermal diffusivity

Indexed keywords

FREEZING; HEAT TRANSFER; NATURAL POLYMERS; NITROGEN; REACTION KINETICS; RELAXATION PROCESSES; TEMPERATURE DISTRIBUTION; THERMAL DIFFUSION;

CWFP; RELAXATION RATES; SSFP; THERMAL DIFFUSIVITY;

NUCLEAR MAGNETIC RESONANCE;

EID: 33745011884     PISSN: 10907807     EISSN: 10960856     Source Type: Journal    
DOI: 10.1016/j.jmr.2006.03.011     Document Type: Article

References (25)

1. Carr H.Y. Steady-state free precession in nuclear magnetic resonance. Phys. Rev. 112 (1958) 1693-1701
2. Ernst R.R., and Anderson W. Application of Fourier transform spectroscopy to magnetic resonance. Rev. Sci. Instrum. 37 (1966) 93-102
3. Freeman R., and Hill H.D.W. Phase and intensity anomalies in Fourier transform NMR. J. Magn. Res. 4 (1971) 366-383
4. Schwenk A. NMR pulse technique with high sensitivity for slowly relaxing systems. J. Magn. Res. 5 (1971) 376-389
5. Hawkes R.C., and Patz S. Rapid Fourier-imaging using steady-state free precession. Magn. Res. Med. 4 1 (1987) 9-23
6. Carney C.E., Wong S.T.S., and Patz S. Analytical solution and verification of diffusion effect in SSFP. Magn. Res. Med. 19 (1991) 240-246
7. Freed D.E., Scheven U.M., Zielinski L.J., Sen P.N., and Hürlimann M.B. Steady-state free precession experiments and exact treatment of diffusion in a uniform gradient. J. Chem. Phys. 115 9 (2001) 4249-4258
8. Azeredo R.B.V., Colnago L.A., and Engelsberg M. Quantitative analysis using steady-state free precession nuclear magnetic resonance. Anal. Chem. 72 (2000) 2401-2405
9. Azeredo R.B.V., Colnago L.A., Souza A.A., and Engelsberg M. Continuous wave free precession-practical analytical tool for low-resolution nuclear magnetic resonance measurements. Anal. Chim. Acta 478 (2003) 313-320
10. Azeredo R.B.V., Engelsberg M., and Colnago L.A. Flow sensitivity and coherence in steady-state free spin precession. Phys. Rev. E 64 (2001) 016309-016313
11. Venâncio T., Engelsberg M., Azeredo R.B.V., Alem N.E.R., and Colnago L.A. Fast and simultaneous measurement of longitudinal and transverse NMR relaxation times in a single continuous wave free precession experiment. J. Magn. Res. 173 (2005) 34-39
12. Abragam A. Principles of Nuclear Magnetism (1983), International Series of Monographs on Physics, Oxford
13. 0 of slowly relaxing systems with weak NMR signals. J. Magn. Res. 25 (1977) 147-165
14. Belton P.S. Advances in Magnetic Resonance in Food Science (1999), Royal Society of Chemistry, Cambridge
15. Kerr W.L., Kauten R.J., Ozilgen M., McCarthy M.J., and Reidl D.S. NMR imaging, calorimetric, and mathematical modeling studies of food freezing. J. Food Proc. Eng. 19 (1996) 363-384
16. Kerr W.L., Clark C.J., McCarthy M.J., and de Ropp J.S. Freezing effects in fruit tissue of kiwifruit observed by magnetic resonance imaging. Sci. Horticult. 69 (1997) 169-179
17. Crank J. The Mathematics of Diffusion. second ed. (1986), Clarendon Press, Oxford
18. Mikkelsen A., and Elgsaeter A. Density distribution of calcium-induced alginate gels. a numerical study. Biopolymers 36 (1995) 17-41
19. Vold R.L., Waugh J.S., Klein M.P., and Phelps D.E. Measurement of spin relaxation in complex systems. J. Chem. Phys. 48 (1968) 3831-3832
20. Freeman R., and Hill H.D.W. High-resolution studies of nuclear spin-lattice relaxation. J. Chem. Phys. 51 (1969) 3140-3141
21. Carr H.Y., and Purcell E.M. Effects of diffusion on free precession in nuclear magnetic resonance experiments. Phys. Rev. 94 (1954) 630-638
22. Meiboom S., and Gill D. Modified spin-echo method for measuring relaxation times. Rev. Sci. Instrum. 29 (1958) 688-691
23. Weber H.W., and Kimmich R. Anomalous segment diffusion in polymers and NMR relaxation spectroscopy. Macromolecules 26 (1993) 2597-2606
24. Schallamach A. The heat conductivity of rubber at low temperatures. Proc. Phys. Soc. 53 (1941) 214-218
25. Bekkedahl N., and Matheson H. Heat capacity, entropy and free-energy of rubber hydrocarbon. J. Res. Nation Bur. Stand. 15 (1935) 503