Siegfried Stapf, Ph.D. - Publications

Affiliations: 
Physics Technische Universitat Ilmenau 
Area:
NMR

66 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2023 Wörtge D, Parziale M, Claussen J, Mohebbi B, Stapf S, Blümich B, Augustine M. Quantitative stray-field T relaxometry with the matrix pencil method. Journal of Magnetic Resonance (San Diego, Calif. : 1997). 351: 107435. PMID 37060888 DOI: 10.1016/j.jmr.2023.107435  0.469
2018 Überrück T, Neudert O, Kreuer KD, Blümich B, Granwehr J, Stapf S, Han S. Effect of nitroxide spin probes on the transport properties of Nafion membranes. Physical Chemistry Chemical Physics : Pccp. PMID 30320331 DOI: 10.1039/C8Cp04607G  0.464
2015 Neudert O, Mattea C, Stapf S, Reh M, Spiess HW, Münnemann K. Fast-field-cycling relaxometry enhanced by Dynamic Nuclear Polarization Microporous and Mesoporous Materials. 205: 70-74. DOI: 10.1016/J.Micromeso.2014.07.036  0.464
2013 Neudert O, Mattea C, Spiess HW, Stapf S, Münnemann K. A comparative study of 1H and 19F Overhauser DNP in fluorinated benzenes. Physical Chemistry Chemical Physics : Pccp. 15: 20717-26. PMID 24192645 DOI: 10.1039/C3Cp52912F  0.42
2012 Shakirov TM, Fatkullin NF, Khalatur PG, Stapf S, Kimmich R. Computer-aided simulation of the influence of collective effects on polymer-melt dynamics in a straight cylindrical tube: Observation of the onset stage of the corset effect Polymer Science Series A. 54: 505-511. DOI: 10.1134/S0965545X12050100  0.439
2011 Buljubasich L, Blümich B, Stapf S. Monitoring mass transport in heterogeneously catalyzed reactions by field-gradient NMR for assessing reaction efficiency in a single pellet. Journal of Magnetic Resonance (San Diego, Calif. : 1997). 212: 47-54. PMID 21741869 DOI: 10.1016/J.Jmr.2011.06.007  0.474
2011 Neudert O, Stapf S, Mattea C. Diffusion exchange NMR spectroscopy in inhomogeneous magnetic fields. Journal of Magnetic Resonance (San Diego, Calif. : 1997). 208: 256-61. PMID 21185207 DOI: 10.1016/j.jmr.2010.11.014  0.313
2011 Neudert O, Stapf S, Mattea C. Diffusion exchange NMR spectroscopy in inhomogeneous magnetic fields. Journal of Magnetic Resonance (San Diego, Calif. : 1997). 208: 256-61. PMID 21185207 DOI: 10.1016/j.jmr.2010.11.014  0.313
2010 Buljubasich L, Blümich B, Stapf S. Quantification of H(2)O(2) concentrations in aqueous solutions by means of combined NMR and pH measurements. Physical Chemistry Chemical Physics : Pccp. 12: 13166-73. PMID 20820561 DOI: 10.1039/C0Cp00330A  0.429
2010 Buljubasich L, Blümich B, Stapf S. Reaction monitoring of hydrogen peroxide decomposition by NMR relaxometry Chemical Engineering Science. 65: 1394-1399. DOI: 10.1016/J.Ces.2009.10.009  0.448
2009 Ayalur-Karunakaran S, Blümich B, Stapf S. Chain dynamics of a weakly adsorbing polymer in thin films. Langmuir. 25: 12208-12216. PMID 19603769 DOI: 10.1021/La901738Q  0.431
2008 Ayalur-Karunakaran S, Blümich B, Stapf S. NMR investigations of polymer dynamics in a partially filled porous matrix. European Physical Journal E. 26: 43-53. PMID 18496646 DOI: 10.1140/Epje/I2007-10341-X  0.47
2008 Papadopoulos D, Voda MA, Stapf S, Casanova F, Behr M, Blümich B. Magnetic field simulations in support of interdiffusion quantification with NMR Chemical Engineering Science. 63: 4694-4703. DOI: 10.1016/J.Ces.2007.08.004  0.508
2007 Blümich B, Datsevich LB, Jess A, Oehmichen T, Ren X, Stapf S. Chaos in catalyst pores: Can we use it for process development? Chemical Engineering Journal. 134: 35-44. DOI: 10.1016/J.Cej.2007.03.058  0.41
2006 Ahola S, Perlo J, Casanova F, Stapf S, Blümich B. Multiecho sequence for velocity imaging in inhomogeneous rf fields. Journal of Magnetic Resonance. 182: 143-151. PMID 16843023 DOI: 10.1016/J.Jmr.2006.06.017  0.467
2006 Ahola S, Casanova F, Perlo J, Münnemann K, Blümich B, Stapf S. Monitoring of fluid motion in a micromixer by dynamic NMR microscopy. Lab On a Chip. 6: 90-5. PMID 16372074 DOI: 10.1039/B510708C  0.513
2006 Harms S, Stapf S, Blümich B. Application of k- and q-space encoding NMR techniques on granular media in a 3D model fluidized bed reactor. Journal of Magnetic Resonance (San Diego, Calif. : 1997). 178: 308-17. PMID 16269261 DOI: 10.1016/J.Jmr.2005.10.009  0.478
2006 Gross-Hardt E, Amar A, Stapf S, Blümich B, Pfennig A. Flow Dynamics Measured and Simulated Inside a Single Levitated Droplet Industrial & Engineering Chemistry Research. 45: 416-423. DOI: 10.1021/Ie0506015  0.508
2006 Merzliak T, Bartusseck I, Stapf S, Voda MA, Blümich B, Pfennig A. Description of intra-diffusion in liquid mixtures Fluid Phase Equilibria. 245: 158-167. DOI: 10.1016/J.Fluid.2006.05.001  0.458
2005 Amar A, Groß-Hardt E, Khrapitchev A, Stapf S, Pfennig A, Blümich B. Visualizing flow vortices inside a single levitated drop. Journal of Magnetic Resonance. 177: 74-85. PMID 16111905 DOI: 10.1016/J.Jmr.2005.07.014  0.497
2005 Stapf S, Ren X, Talnishnikh E, Blümich B. Spatial distribution of coke residues in porous catalyst pellets analyzed by field-cycling relaxometry and parameter imaging. Magnetic Resonance Imaging. 23: 383-6. PMID 15833654 DOI: 10.1016/J.Mri.2004.11.036  0.478
2005 Kariyo S, Küppers M, Badiger MV, Prabhakar A, Jagadeesh B, Stapf S, Blümich B. Morphology and chain dynamics during collapse transition of PNIPAM gels studied by combined imaging, relaxometry and 129Xe spectroscopy techniques. Magnetic Resonance Imaging. 23: 249-53. PMID 15833621 DOI: 10.1016/J.Mri.2004.11.019  0.442
2005 Kariyo S, Stapf S, Blümich B. Site Specific Proton and Deuteron NMR Relaxation Dispersion in Selectively Deuterated Polyisoprene Melts Macromolecular Chemistry and Physics. 206: 1292-1299. DOI: 10.1002/Macp.200500020  0.436
2005 Ren X, Stapf S, Blümich B. Magnetic Resonance Visualisation of Flow and Pore Structure in Packed Beds with Low Aspect Ratio Chemical Engineering & Technology. 28: 219-225. DOI: 10.1002/Ceat.200407092  0.493
2005 Ren X, Stapf S, Blümich B. NMR velocimetry of flow in model fixed-bed reactors of low aspect ratio Aiche Journal. 51: 392-405. DOI: 10.1002/Aic.10318  0.525
2004 Doumèche B, Küppers M, Stapf S, Blümich B, Hartmeier W, Ansorge-Schumacher MB. New approaches to the visualization, quantification and explanation of acid-induced water loss from Ca-alginate hydrogel beads. Journal of Microencapsulation. 21: 565-573. PMID 15513762 DOI: 10.1080/02652040400000454  0.383
2004 Fojud Z, Szcześniak E, Jurga S, Stapf S, Kimmich R. Molecular dynamics of n-dodecylammonium chloride in aqueous solutions investigated by 2H NMR and 1H NMR relaxometry. Solid State Nuclear Magnetic Resonance. 25: 200-6. PMID 14698411 DOI: 10.1016/J.SSNMR.2003.07.002  0.534
2003 Ren X, Stapf S, Kühn H, Demco DE, Blümich B. Molecular mobility in fixed-bed reactors investigated by multiscale NMR techniques. Magnetic Resonance Imaging. 21: 261-8. PMID 12850717 DOI: 10.1016/S0730-725X(03)00134-6  0.51
2002 Khrapitchev AA, Han S, Stapf S, Blümich B. Spectrally resolved velocity exchange spectroscopy of two-phase flow. Journal of Magnetic Resonance. 159: 36-45. PMID 12468301 DOI: 10.1016/S1090-7807(02)00002-2  0.512
2002 Savelsberg R, Demco DE, Blümich B, Stapf S. Particle motion in gas-fluidized granular systems by pulsed-field gradient nuclear magnetic resonance. Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics. 65: 020301. PMID 11863495 DOI: 10.1103/Physreve.65.020301  0.477
2002 Heine C, Kupferschläger K, Stapf S, Blümich B. NMR velocimetry of falling liquid films. Journal of Magnetic Resonance. 154: 311-316. PMID 11846589 DOI: 10.1006/Jmre.2001.2495  0.468
2002 Ren X, Bertmer M, Stapf S, Demco DE, Blümich B, Kern C, Jess A. Deactivation and regeneration of a naphtha reforming catalyst Applied Catalysis a-General. 228: 39-52. DOI: 10.1016/S0926-860X(01)00958-9  0.472
2002 Küppers M, Heine C, Han S, Stapf S, Blümich B. In situ observation of diffusion and reaction dynamics in gel microreactors by chemically resolved NMR microscopy Applied Magnetic Resonance. 22: 235-246. DOI: 10.1007/Bf03166106  0.472
2002 Heine C, Stapf S, Blümich B. Two- and three-dimensional waves in falling film flow in the nonlaminar flow regime: an NMR study Applied Magnetic Resonance. 22: 223-233. DOI: 10.1007/Bf03166105  0.419
2002 Stapf S, Han S, Heine C, Blümich B. Spatiotemporal correlations in transport processes determined by multiple pulsed field gradient experiments Concepts in Magnetic Resonance. 14: 172-211. DOI: 10.1002/Cmr.10021  0.524
2001 Han S, Stapf S, Blümich B. NMR imaging of falling water drops. Physical Review Letters. 87: 144501. PMID 11580653 DOI: 10.1103/Physrevlett.87.144501  0.466
2001 Blümich B, Callaghan PT, Damion RA, Han S, Khrapitchev AA, Packer KJ, Stapf S. Two-dimensional NMR of velocity exchange: VEXSY and SERPENT. Journal of Magnetic Resonance (San Diego, Calif. : 1997). 152: 162-7. PMID 11531375 DOI: 10.1006/Jmre.2001.2395  0.742
2001 Stapf S, Blümich B. Multi-gradient pulse investigations of fluid transport in porous media. Magnetic Resonance Imaging. 19: 385-389. PMID 11445316 DOI: 10.1016/S0730-725X(01)00253-3  0.496
2001 Stapf S, Packer K, Békri S, Adler P. Spatial correlations in dispersion processes of fluid transport through porous materials by 2-D PFG-NMR Magnetic Resonance Imaging. 19: 585-586. DOI: 10.1016/S0730-725X(01)00356-3  0.547
2001 Stapf S, Packer K. Structure-size estimation by shape analysis of NMR self-diffusion propagators Magnetic Resonance Imaging. 19: 585. DOI: 10.1016/S0730-725X(01)00355-1  0.524
2001 Han S, Stapf S, Blümich B. Fluid transport and filtration in a hemodialyzer module by 2D PFG NMR Magnetic Resonance Imaging. 19: 583-584. DOI: 10.1016/S0730-725X(01)00351-4  0.423
2001 Ren X, Bartusseck I, Bertmer M, Demco DE, Stapf S, Blümich B, Kern C, Jess A. NMR study of tortuosity during deactivation and decoking of a naphtha reforming catalyst Magnetic Resonance Imaging. 19: 581-582. DOI: 10.1016/S0730-725X(01)00345-9  0.397
2001 Menzel MI, Han S, Siemons M, Stapf S, Blümich B. NMR on contaminated salt water ice Magnetic Resonance Imaging. 19: 578. DOI: 10.1016/S0730-725X(01)00334-4  0.387
2000 Stapf S, Packer KJ, Békri S, Adler PM. Two-dimensional nuclear magnetic resonance measurements and numerical simulations of fluid transport in porous rocks Physics of Fluids. 12: 566-580. DOI: 10.1063/1.870262  0.61
1999 Zavada T, Stapf S, Beginn U, Kimmich R. Field-cycling NMR relaxometry of molecules undergoing Lévy walks at the surface of fine particles and porous glass. Magnetic Resonance Imaging. 16: 711-3. PMID 9803947 DOI: 10.1016/S0730-725X(98)00016-2  0.512
1999 Zavada T, Stapf S, Kimmich R. Diffusion and relaxation in interface layers of crystals in nanoporous glass. Magnetic Resonance Imaging. 16: 695-7. PMID 9803943 DOI: 10.1016/S0730-725X(98)00020-4  0.506
1999 Grinberg F, Kimmich R, Stapf S. Molecular dynamics and order of microconfined liquid crystals. Magnetic Resonance Imaging. 16: 635-7. PMID 9803927 DOI: 10.1016/S0730-725X(98)00036-8  0.513
1998 Packer KJ, Stapf S, Tessier JJ, Damion RA. The characterisation of fluid transport in porous solids by means of pulsed magnetic field gradient NMR. Magnetic Resonance Imaging. 16: 463-9. PMID 9803891 DOI: 10.1016/S0730-725X(98)00071-X  0.754
1998 Ardelean I, Kimmich R, Stapf S, Demco D. The Nonlinear Stimulated Echo in the Presence of Inequivalent Spins Journal of Magnetic Resonance. 132: 138-143. DOI: 10.1006/JMRE.1998.1407  0.452
1998 Stapf S, Packer KJ. Two-dimensional propagators and spatio-temporal correlations for flow in porous media: A comparative study Applied Magnetic Resonance. 15: 303-322.  0.551
1998 Stapf S, Packer KJ, Graham RG, Thovert JF, Adler PM. Spatial correlations and dispersion for fluid transport through packed glass beads studied by pulsed field-gradient NMR Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics. 58: 6206-6221.  0.596
1997 Ardelean I, Kimmich R, Stapf S, Demco DE. Multiple nonlinear stimulated echoes. Journal of Magnetic Resonance (San Diego, Calif. : 1997). 127: 217-24. PMID 9281486 DOI: 10.1006/JMRE.1997.1197  0.525
1997 Grinberg F, Kimmich R, Stapf S. Investigation of molecular order and dynamics in liquid crystals confined in porous media using the dipolar-correlation effect on the stimulated echo. Magnetic Resonance Imaging. 14: 883-5. PMID 8970100 DOI: 10.1016/S0730-725X(96)00172-5  0.545
1997 Stapf S, Kimmich R, Seitter RO. Field-cycling NMR relaxometry of liquids confined in porous glass: evidence for Levy-walks. Magnetic Resonance Imaging. 14: 841-6. PMID 8970092 DOI: 10.1016/S0730-725X(96)00213-5  0.516
1997 Kimmich R, Stapf S, Maklakov AI, Skirda VD, Khozina EV. Self-diffusion in fluids in porous glass: confinement by pores and liquid adsorption layers. Magnetic Resonance Imaging. 14: 793-7. PMID 8970083 DOI: 10.1016/S0730-725X(96)00165-8  0.52
1997 Valiullin RR, Skirda VD, Stapf S, Kimmich R. Molecular exchange processes in partially filled porous glass as seen with NMR diffusometry Physical Review E. 55: 2664-2671. DOI: 10.1103/PHYSREVE.55.2664  0.491
1997 Stapf S, Kimmich R. Translational mobility in surface induced liquid layers investigated by NMR diffusometry Chemical Physics Letters. 275: 261-268. DOI: 10.1016/S0009-2614(97)00727-6  0.458
1997 Stapf S, Kimmich R, Zavada T. Dynamics of plastic and liquid cyclohexane in bulk and in porous glasses studied by NMR methods Applied Magnetic Resonance. 12: 199-212. DOI: 10.1007/BF03162187  0.5
1997 Ardelean I, Stapf S, Demco D, Kimmich R. The Nonlinear Stimulated Echo Journal of Magnetic Resonance. 124: 506-508. DOI: 10.1006/JMRE.1996.1081  0.404
1996 Kimmich R, Zavada T, Stapf S. NMR Experiments on Molecular Dynamics in Nanoporous Media: Evidence for Lévy Walk Statistics Mrs Proceedings. 464. DOI: 10.1557/PROC-464-313  0.564
1996 Stapf S, Kimmich R. Field-Cycling Nuclear Magnetic Resonance Relaxometry and Field-Gradient Nuclear Magnetic Resonance Diffusometry of Polymers Confined in Porous Glasses:  Evidence for a Restricted-Geometry Effect Macromolecules. 29: 1638-1641. DOI: 10.1021/MA9502112  0.496
1996 Stapf S, Kimmich R, Seitter R, Maklakov A, Skirda V. Proton and deuteron field-cycling NMR relaxometry of liquids confined in porous glasses Colloids and Surfaces a: Physicochemical and Engineering Aspects. 115: 107-114. DOI: 10.1016/0927-7757(96)03610-2  0.522
1995 Stapf S, Kimmich R. Molecular dynamics in confined monomolecular layers. A field‐cycling nuclear magnetic resonance relaxometry study of liquids in porous glass The Journal of Chemical Physics. 103: 2247-2250. DOI: 10.1063/1.469700  0.504
1994 Kimmich R, Stapf S, Callaghan P, Coy A. Microstructure of porous media probed by NMR techniques in sub-micrometer length scales Magnetic Resonance Imaging. 12: 339-343. PMID 8170335 DOI: 10.1016/0730-725X(94)91552-0  0.548
1994 Kimmich R, Stapf S, Seitter R, Callaghan P, Khozina E. Molecular Dynamics of Monomer, Oligomer, and Polymer Liquids in Porous Media: A Field-Cycling Nmr Relaxometry and NMR Field-Gradient Diffusometry Study Mrs Proceedings. 366. DOI: 10.1557/Proc-366-189  0.57
1994 Stapf S, Kimmich R, Niess J. Microstructure of porous media and field‐cycling nuclear magnetic relaxation spectroscopy Journal of Applied Physics. 75: 529-537. DOI: 10.1063/1.355834  0.492
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