Výsledky vyhledávání - "Wolfgang, Dreher"

Akademický článek

T1 Relaxation of Methane in Mixtures with Gaseous Water

Autor: Harm Ridder, Wolfgang Dreher, Jorg Thöming

Publikováno v: ACS Measurement Science Au, Vol 4, Iss 3, Pp 277-282 (2024)

Externí odkaz: https://doaj.org/article/ef715f5141b74af19cdb3a819fa28293

3D bioprinting of hydrogel/ceramic composites with hierarchical porosity

Autor: Jessica Condi Mainardi, Catarina Bonini Demarchi, Mojtaba Mirdrikvand, Md Nurul Karim, Wolfgang Dreher, Kurosch Rezwan, Michael Maas

Publikováno v: Journal of Materials Science. 57:3662-3677

Direct 3D bioprinting of bioreactors containing microorganisms embedded inside hydrogel structures is a promising strategy for biotechnological applications. Nevertheless, microporous hydrogel networks hinder the supply of nutrients and oxygen to the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c7782db7770b28357c637ce43da3b4fd
https://doi.org/10.1007/s10853-021-06829-7

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Comparative full-field velocimetry of liquid flow within monolithic catalyst carriers via CFD simulations and MRV measurements

Autor: Mehrdad Sadeghi, Adrian Ricke, Georg R. Pesch, Wolfgang Dreher, Jorg Thöming

In reaction engineering, it is often that overcoming transport limitations improves reactor performance. This requires detailed analyses of transport phenomena in the catalytic beds. Nuclear magnetic resonance velocimetry (MRV) measurements have been

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4eefd76f13a4835b7e85e491bb334ff9

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Characterization of amine proton exchange for analyzing the specificity and intensity of the CEST effect: from humans to fish

Autor: Felizitas Wermter, Christian Bock, Wolfgang Dreher

Publikováno v: EPIC3NMR in Biomedicine, n/a(n/a), pp. e4622

Chemical exchange saturation transfer (CEST) at about 2.8 ppm downfield from water is characterized besides other compounds by exchanging amine protons of relatively high concentration amino acids and is determined by several physiological (pH, T) an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49b7f1ed3a88764fc5c2559e9105574a
https://pubmed.ncbi.nlm.nih.gov/34605080

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A large fixed bed reactor for MRI operando experiments at elevated temperature and pressure

Autor: Jan Ilsemann, Harm Ridder, Christoph Sinn, Jorg Thöming, Georg R. Pesch, Wolfgang Dreher

Publikováno v: The Review of scientific instruments. 92(4)

Recently, in situ studies using nuclear magnetic resonance (NMR) have shown the possibility to monitor local transport phenomena of gas-phase reactions inside opaque structures. Their application to heterogeneously catalyzed reactions remains challen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdd80c794ae4de9ce517379fb22194c9
https://pubmed.ncbi.nlm.nih.gov/34243384

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Distribution of water in ceramic green bodies during drying

Autor: Wolfgang Dreher, Arnaud Alzina, Kurosch Rezwan, Yann Launay, Mojtaba Mirdrikvand, Jean-Louis Victor, David S. Smith, Siham Oummadi, Benoît Nait-Ali

Publikováno v: Journal of the European Ceramic Society
Journal of the European Ceramic Society, Elsevier, 2019, 39 (10), pp.3164-3172. ⟨10.1016/j.jeurceramsoc.2019.04.005⟩

In order to investigate drying mechanisms at different stages, the distribution of water within the ceramic green bodies at different scales has been examined. The experimental measurements, using a simple weighing technique and Magnetic Resonance Im

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a70ae072ce6cb420cdc46c21ddf5e25
https://doi.org/10.1016/j.jeurceramsoc.2019.04.005

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Diffusion weighted magnetic resonance imaging for temperature measurements in catalyst supports with an axial gas flow

Autor: Jorg Thöming, Mojtaba Mirdrikvand, Harm Ridder, Wolfgang Dreher

Publikováno v: Reaction Chemistry & Engineering. 4:1844-1853

In situ thermometry of catalytic gas phase reactions allows the determination of temperature profiles in catalyst beds. In NMR imaging systems used for measuring the chemical composition of species in model reactors, temperature measurements by NMR s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d1917c04c8349d4957c1c2d4d8fa9fb0
https://doi.org/10.1039/c9re00082h

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Water and lipid suppression techniques for advanced 1 H MRS and MRSI of the human brain: Experts' consensus recommendations

Autor: Hoby P. Hetherington, Wolfgang Dreher, Roland Kreis, Dinesh K. Deelchand, Daniel M. Spielman, Robin A. de Graaf, Ivan Tkáč, Bernhard Strasser, Chathura Kumaragamage, Michal Považan

Publikováno v: NMR in Biomedicine. 34

The neurochemical information provided by proton magnetic resonance spectroscopy (MRS) or MR spectroscopic imaging (MRSI) can be severely compromised if strong signals originating from brain water and extracranial lipids are not properly suppressed.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::16ee6f8e090a57897fe55657acc858be
https://doi.org/10.1002/nbm.4459

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