Article
Refine
Year of publication
- 2024 (3)
- 2023 (8)
- 2022 (12)
- 2021 (8)
- 2020 (9)
- 2019 (7)
- 2018 (12)
- 2017 (11)
- 2016 (19)
- 2015 (20)
- 2014 (25)
- 2013 (24)
- 2012 (15)
- 2011 (22)
- 2010 (15)
- 2009 (18)
- 2008 (10)
- 2007 (14)
- 2006 (13)
- 2005 (12)
- 2004 (8)
- 2003 (8)
- 2002 (15)
- 2001 (16)
- 2000 (9)
- 1999 (10)
- 1998 (23)
- 1997 (15)
- 1996 (8)
- 1995 (28)
- 1994 (22)
- 1993 (9)
- 1992 (20)
- 1991 (8)
- 1990 (14)
- 1989 (15)
- 1988 (13)
- 1987 (12)
- 1986 (10)
- 1985 (7)
- 1984 (7)
- 1983 (9)
- 1982 (3)
- 1981 (2)
- 1980 (3)
- 1979 (8)
- 1978 (2)
- 1976 (1)
- 1975 (3)
- 1972 (1)
- 1971 (2)
Institute
- Fachbereich Chemie und Biotechnologie (588) (remove)
Has Fulltext
- no (588) (remove)
Document Type
- Article (588) (remove)
Keywords
- Heparin (3)
- Chemometrics (2)
- IR spectroscopy (2)
- NMR spectroscopy (2)
- Principal component analysis (2)
- Standardization (2)
- ABE (1)
- Acid crash (1)
- Alginate beads (1)
- Authenticity (1)
- Biomass (1)
- Bragg peak (1)
- Butanol (1)
- C. acetobutylicum (1)
- CRISPR/Cas9 (1)
- Crude heparin (1)
- Cyclotron production (1)
- Dehydrogenase (1)
- Detergent protease (1)
- Deuterated solvents (1)
- Deuterium NMR (1)
- Diaphorase (1)
- Enzymatic biosensor (1)
- Extracellular enzymes (1)
- Ga-68 (1)
- Hypersecretion (1)
- IR (1)
- Inorganic ions (1)
- Ions (1)
- Linear discriminant analysis (1)
- Manufacturer (1)
- Marker-free mutagenesis (1)
- Medical radionuclide production (1)
- Metabolic shift (1)
- Metal contaminants (1)
- Microfluidic solvent extraction (1)
- Molecular modelling (1)
- Molecular weight determination (1)
- NMR (1)
- P2G (1)
- PLS-regression (1)
- Pre-culture (1)
- Quality control (1)
- Quantum chemistry (1)
- Simultaneous determination (1)
- Soft independent modeling of class analogy (1)
- Stenotrophomonas maltophilia (1)
- USP (1)
- Uracil-phosphoribosyltransferase (1)
- actuator-sensor system (1)
- aspergillus (1)
- bacterial cellulose (1)
- bi-enzyme biosensor (1)
- bioavailability (1)
- biodegradable polymers (1)
- biological dosimeter (1)
- biomethane (1)
- borehole disposal (1)
- bubble column (1)
- capacitive field-effect sensor (1)
- coculture (1)
- deficit irrigation (1)
- disposal facility (1)
- drug metabolising enzymes (1)
- drug–drug interactions (1)
- elastomers (1)
- enzyme kinetics (1)
- enzyme-logic gate (1)
- exopolysaccharides (1)
- filamentous fungi (1)
- genome engineering (1)
- geological disposal (1)
- glycine (1)
- human metabolites (1)
- hydrogel (1)
- hydrogels (1)
- light-addressable electrode (1)
- light-addressable potentiometric sensor (1)
- mechanical properties (1)
- methanation (1)
- microfluidics (1)
- micronutrients (1)
- neutrons (1)
- nuclear waste (1)
- onion (1)
- optical fibers (1)
- penicillinase (1)
- plug flow reactor (1)
- polyaspartic acid (1)
- prebiotic (1)
- proton therapy (1)
- protons (1)
- pullulan (1)
- qNMR (1)
- relative dosimetry (1)
- retention time (1)
- rubber (1)
- superabsorbent polymers (1)
- supramolecular structures (1)
- swelling properties (1)
- theory and modeling (1)
- tobacco mosaic virus (TMV) (1)
- transporters (1)
- urease (1)
- water economy (1)
- yield (1)
Der effektive Diffusionskoeffizient Deff von Gasen in einem porösen Medium hängt im Knudsen- bzw. Übergangsgebiet vom effektiven Porenradius 〈r〉 der Struktur ab. 〈r〉 kann aus Deff ermittelt werden, sofern der Labyrinthfaktor χ der Struktur aus der Kinetik des Stoffaustausches in den mit einer flüssigen Phase gefüllten Poren separat bestimmt wird. An einem Trägerkatalysator (CuO auf γ-Al₂O₃) ergab sich auf diese Weise ein für die Diffusion maßgebender effektiver Porenradius, der in den Bereich der Makroporen fällt. Ein Vergleich mit dem aus reaktionskinetischen Daten ermittelten effektiven Diffusionskoeffizienten läßt auf eine ungleichmäßige Verteilung der aktiven Komponente im Kontaktkorn schließen.