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Articole publicate in ultimii 5 ani

  1. C. Filip, S. Hafner, I. Schnell, D.E. Demco, H.W. Spiess,Solid-State NMR Spectra of Dipolar-Coupled Multi-Spin Systems under Fast Magic Angle Spinning, J.Chem. Phys., 110, 423, (1999).
  2. T. Fritzhanns, S. Hafner, D.E. Demco, H.W. Spiess, 1H NOESY under MAS in Cross-Linked Elastomers, Molecular Physics, 97, 931 (1999).
  3. M. Schneider, L. Gasper, D.E. Demco, B. Blümich, Residual Dipolar Couplings by 1H Dipolar Encoded Longitudinal Magnetization, Double- and Triple-Quantum NMR in Cross-Linked Elastomers, J. Chem. Phys. 111, 402 (1999).
  4. L. Gasper, D. E. Demco, B. Blümich, ,H Residual Dipolar Couplings by NMR Spectral Spin Diffusion in Cross-Linked Elastomers: Determination and Imaging, Solid State NMR, 14, 105 (1999).
  5. M. Schneider, D. E. Demco, B. Blümich, 1H Residual Dipolar Couplings Images by Dipolar Encoded Longitudinal Magnetization, Double- and Triple-Quantum NMR Filters in Cross-Linked Elastomers, J.Magn. Reson. 140, 432 (1999).
  6. K. Saalwächter, R. Graf, D.E. Demco, H.W. Spiess, Heteronuclear Double-Quantum MAS NMR Spectroscopy in Dipolar Solids, J.Magn. Reson. 139, 287 (1999).
  7. P. Tekely, D.E. Demco, D. Canet, C. Malveau, Effects of the proton chemical-shift anisotropy on double-quantum MAS NMR sideband patterns, Chem. Phys. Lett. 309, 101 (1999).
  8. F. Balibanu, K. Hailu, R. Eymael, D.E. Demco, and B. Blümich, Nuclear Magnetic Resonance in Inhomogeneous Magnetic Fields, J. Magn. Reson., 145, 246 (2000).
  9. D.E. Demco, P. Blümler, B. Blümich, Solid-State NMR Imaging Methods, Part I: Strong Field Gradients Concepts in NMR, 12, 188 (2000).
  10. D.E. Demco, P. Blümler, B. Blümich, Solid-State NMR Imaging Methods, Part II: Line Narrowing, Concepts in NMR, 12, 269 (2000).
  11. B. Blümich, D.E. Demco, S. Stapf, U. Goerke, C. Chwatinski, L. Gaspar, R. Giesen, R. Haken, S.I. Han, Functional NMR Imaging of Materials, Polymeric Materials: Science & Engineering, Vol. 82, 148 (2000).
  12. D.E. Demco, S. Hafner, and H.W. Spiess, Multidimensional NMR Techniques for the Characterization of Viscoelastic Materials in Spectroscopic Methods of Rubbery Materials, Ed. P.P. De, V.E. Litvinov, Shrewsbury: Rapra (2001).
  13. B. Blümich, and D.E. Demco, NMR Imaging of Elastomers, in Spectroscopic Methods of Rubbery Materials, Ed. P.P. De, V.E. Litvinov, Shrewsbury: Rapra (2001).
  14. C. Filip, A. Weismath, D.E. Demco, and B. Blümich, Double-Quantum Filtered NMR Signals in Inhomogeneous Magnetic Fields, J. Magn. Reson. 149, 258 (2001).
  15. C. Filip, M. Bertmer, D. E. Demco and B. Blümich, Application of the Floquet Theory to Multiple Quantum NMR of Dipolar-Coupled Multi-spin Systems under Magic Angle Spinning, Molecular Physics, (submitted).
  16. M. Schneider, D.E. Demco, and B. Blümich, NMR Images of Proton Residual Dipolar Coupling from Strained Elastomers, Macromolecules, 34, 4019 (2001).
  17. C. Filip, M. Bertmer, D.E. Demco, and B. Blümich, Proton Double-Quantum Rotational Resonance NMR Spectroscopy on Elastomers, Chem. Phys. Lett. (in press).
  18. Weismath, D.E. Demco, and B. Blümich, NMR of Spin Multipoles in Strongly Inhomogeneous Magnetic Fields, J. Magn. Reson, 154, 1 (2002).
  19. M. Bertmer, L. Gasper, D.E. Demco, B. Blümich, and V. Litvinov, Segmental Order by Double-Quantum NMR in Thermoplastic Elastomer, Macromolecules, (submitted).
  20. Filip, X. Filip, M. Bertmer, D. Demco, B. Blümich, Dipolar and J Encoded DQ MAS Spectra under Rotational Resonance, J. Magn. Reson., 150, 184 (2001).
  21. Wiesmath, C. Filip, D.E. Demco and B. Blümich, Double-Quantum-Filtered NMR Signals in Inhomogeneous Magnetic Fields, J. Magn. Reson., 149, 258 (2001)
  22. H. Kühn, M. Klein, A. Wiesmath, D.E. Demco, B. Blümich, J. Kelm, P.W. Gold, The NMR-MOUSE: quality control of elastomers, Mag. Reson. Imag., 19, 497 (2001).
  23. R. Saalvesberg, D.E. Demco, B. Blümich and S. Stapf, Particle motion in gas-fludized granular system by pulsed-field gradient nuclear magnetic resonance, Phys. Rev. E 65, 1123 (2002).
  24. X.-H. Ren, M. Bertmer, S. Stapf, D.E. Demco, B. Blümich, C. Kern, and A. Jess, Deactivation and reactivation of a naphtha reforming catalyst, Applied Catalyst A, 45, 246 (2002).
  25. R. Fechete, D.E. Demco, and Blümich, Segmental Anisotropy in Strained Elastomers by 1H NMR of Multipolar Spin States, Macromolecules, 35, 6083 (2002).
  26. M. Bertmer, L. Gasper, D.E. Demco, B. Blümich, and V. Litvinov, Investigation of soft compüonent mobility in thermoplastic elastomers using homo- and heteronuclear dipolar filtered 1H double-qauntum NMR experiments, Macromol. Chem. Phys., 205, 83 (2004).
  27. V. Litvinov, M. Bertmer, L. Gasper, D.E. Demco, and B. Blümich, Phase composition of block copoly(ether ester) thermoplastic elastomer studied by solid-state NMR techniques, Macromolecules, 36, 7598 (2003).
  28. M.-F. Wang, M. Bertmer, D.E Demco, B. Blümich, V. Litvinov, H. Barthel, Indication of heterogeneity in chain-segmental order of a PDMS layer grafted onto a silica surface by 1H multiple-quantum NMR, Macromolecules, 36, 4411 (2003).
  29. R. Fechete, D. E. Demco, and B. Blümich, Chain Orientation and Slow Dynamics in Elastomers by Mixed Magic-Hahn Echoes Decays, J. Chem. Phys. 118, 2411 (2003).
  30. R. Fechete, D. E. Demco, B. Blümich, U. Eliav and G. Navon, Anisotropy of Collagen Fiber Orientation in Tendon by 1H Double-Quantum-Filtered NMR Signals, J. Magn. Reson. 162, 166 (2003).
  31. Buda, D.E. Demco, M. Bertmer, B. Blümich, V. M. Litvinov, and J.P. Penning, General Aanlytical Description of Spin-Diffusion for a Three Domain Morphology. Application to Melt-Spun Nylon 6 Fibers, J. Phys. Chem. B 107, 5357 (2003).
  32. Buda, D.E. Demco, M. Bertmer, B. Blümich, B. Reining, H. Keul, and H. Höcker, Domain Sizes in Hterogenous Polymers by Spin Diffusion Using Single-Quantum and Double-Quantum Dipolar Filters, Solid State NMR, 24, 39 (2003).
  33. K. Hailu, R. Fechete, D.E. Demco, and B. Blümich, Segmental Anisotropy Induced in Strained Elastomers Detectedwith a Portable NMR Scanner, Solid State Nucl. Magn. Reson. 22, 327 (2002), (issue dedicated to Prof. Hans W. Spiess on the occasion of his 60th birthday).
  34. M. Klein, R. Fechete, D.E. Demco, and B. Blümich, Self-Diffusion Measurements by Constant-Relaxation Method in Strongly Inhomogeneous Magnetic Fields, J. Magn. Reson., 164, 310 (2003).
  35. R. Fechete, D.E. Demco, and B. Blümich, Parameter maps of 1H residual dipolar couplings in tendon under mechanical load, J. Mag. Reson., 165, 9 (2003).
  36. R. Fechete, D.E. Demco, and B. Blümich, Order parameters of orientation distribution of collagen fibers in tendon by multipolar spin states filtered NMR signals, NMR in Biomedicine, 16, 479 (2003).
  37. X.-H. Ren, M. Bertmer, H. Kühn, S. Stapf, D.E. Demco, B. Blümich, C. Kern, and A. Jess, 1H, 13C, and 129Xe NMR study of changing pore size and tortuosity during deactivation and decoking of naphta reforming catalyst in Magnetic Resonance of Colloid and Interface Science, J. Fraissard, and O. Lapina (Eds.), Kluwer Academic Publishers, Amsterdam (2002).
  38. D.E. Demco, R. Fechete, and B. Blümich, Residual dipolar couplings of soft solids by accordion magic sandwich, Chem. Phys. Lett., 375, 406 (2003).
  39. R. Fechete, D.E. Demco, and B. Blümich, Self-diffusion anisotropy of small penetrants in compressed elastomers, Macromolecules, 36, 7155 (2003).
  40. M.-F. Wang, M. Bertmer, D.E Demco, and B. Blümich, Segmental and local chain mobilities in elastomers by 13C-1H residual heteronuclear dipolar couplings, J. Phys. Chem. (in press).
  41. R. Fechete, D.E. Demco, B. Blümich, Enhanced sensitivity to residual dipolar couplings of elastomers by higher-order multiple-quantum NMR, J. Magn. Reson., 169, 19 (2004).
  42. Buda, D.E. Demco, B. Blümich, V. M. Litvinov, and J.P. Penning, Complex morphology of melt-spun Nylon 6 fibers investigated by 1H double-quantum-filtered NMR spin-diffusion experiments, ChemPhysChem, 5, 876 (2004).
  43. Buda, D.E. Demco, B. Jagadeesh, and B. Blümich, Molecular dynamic heterogeneity of confined lipd films by 1H magnetization-exchange NMR, J. Chem. Phys. (submitted).
  44. Jagadeesh, D.E. Demco, and B. Blümich, Surface induced order and dynamic heterogeneity in ultra thin polymer films: A 1H multiple-quantum NMR study, Chem. Phys. Lett. 393, 416 (2004).
  45. Jagadeesh, A. Prabhakar, A. Buda, D.E. Demco, and B. Blümich, Surface and confinement induced molecular dynamics of thin lipid films: A 1H multiple-quantum NMR study, Chem. Phys. Lett. (submitted).
  46. M.A. Voda, D.E. Demco, J. Perlo, R.A. Orza, and B. Blümich, Multispin moemnets edited by multiple-qauntum NMR. Application to elastomers, J. Magn. Reson. (submitted)
  47. D.E. Demco, G. Rata, R. Fechete, B. Blümich, Self-Diffusion Anisotropy of Small Penetrant Molecules in Deformed Elastomers, Macromol. 38 (2005) 5647 – 5653

 

Contributii la conferinte internationale

  1. K. Hailu, R. Fechete, D. E. Demco, B. Blümich, Anisotropy of 1H Magnetization Transverse Relaxation in Strained Elastomers by the NMR-MOUSE, NATO ARW, Magnetic Resonance in Colloid and Interface Science, St. Petersburg, Russia, June 26-30, (2001).
  2. R. Fechete, A. Weismath, D. E. Demco, B. Blümich, Magic echo in combination with Hahn echo for measuring residual dipolar coupling in elastomers, double-quantum filtered NMR signal by NMR-MOUSE sensor, NMR endoscopes, Mid term DIP meeting, March, Aachen, (2002).
  3. R. Fechete, D.E. Demco, and B. Blümich, Segmental order and chain dynamics of polymer networks Using multi-spin dipolar correlation effect, The 16th European Experimental Nuclear Magnetic Resonance Conference in Prague, June 9-14, (2002).
  4. Martin Klein, R. Fechete, D. E. Demco and B. Blümich, Self-Diffusion Measurements by Constant-Relaxation Method in Strongly Inhomogeneous Magnetic Fields, Colloquium on Mobile NMR Vaals, The Netherlands, October 7-9, (2002).
  5. R. Fechete, D.E. Demco, and B. Blümich, Segmental order and chain dynamics of polymer networks Using multi-spin dipolar correlation effect, The 44 ENC, Savannah, Georgia, (2003).
  6. D.E. Demco, R. Fechete, B. Blümich, U. Eliav, and G. Navon, Anisotropy of Collagen Fiber Orientation in Sheep Tendon by 1H Double-Quantum-Filtered NMR Signals, The 44 ENC, Savannah, Georgia, (2003).
  7. D.E. Demco, Ampere IX NMR School, Zakopane, Poland Iunie 3-8, 2001.
  8. D.E. Demco, IX International Symposim on Magnetic Resonance in Colloid and Interfaces, Sciences, St. Petersburg, Russia, Iunie, 25-29 , 2001.
  9. D.E. Demco, Specialzed Colloque Ampere 2001, Stuttgart , Germany, Iulie 22-26, 2001.
  10. D.E. Demco, 2nd Alpine Conference on Solid state NMR, Chamonix-Mont Blanc, France, September 9-13, 2001.
  11. D.E. Demco, 5.22nd GDCh Discussion Meeting on MR Spectrscopy, Regensburg, Germany, Spetember, 27-30, 2000.
  12. D.E. Demco, 5th International Meeting on Recent Advances in MR Applications to Prorous Maedia, Bologna, Italy, October, 9-11, 2000.
  13. D. E. Demco, 42nd ENC, Orlando, Florida, March, 11-16, 2001.
  14. D. E. Demco, 31st Congress Ampere, Poznan, Poland, Iulie, 14-19 2002.
  15. D. E. Demco, 6th International Meeting on Magnetic resonance in Porous Media, Ulm, Germany, Spetember, 8-12 , 2002.
  16. D. E. Demco, 43nd ENC, Asilomar, Pacific Grove, California, April 14-19 2002.
  17. D. E. Demco, 16th European Experimental NMR Conference (EENC), Prague, Iunie, 9-14, 2002.
  18. D. E. Demco, 3rd Alipine Conference on Solid State NMR, Chamonix, France, September, 14-18, 2003.
  19. D. E. Demco, 7th International Conference on Magnetic Resonance Microscopy, Snowbird, Utah, Spetember, 20-26, 2003.
  20. D. E. Demco, 7th International Conference in Porous Madia, Palaiseau, France, Iunie, 4-8, 2004.
  21. D. E. Demco, Congress Ampere/EENC, Lille, France, Septemeber 6-11, 2005
  22. D. E.. Demco, GDCh Britisch-German Meeting in Aachen, September, 27-29, 2005.