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Auflistung nach Schlagwort "Kinetics"

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Addressing the Grid-Size Sensitivity Issue in Large-Eddy Simulations of Stable Boundary Layers

Dai, Yi; Basu, Sukanta; Maronga, Björn; de Roode, Stephan R. (Dordrecht [u.a.] : Springer Science + Business Media B.V, 2020)

We have identified certain fundamental limitations of a mixing-length parametrization used in a popular turbulent kinetic energy-based subgrid-scale model. Replacing this parametrization with a more physically realistic ...
All-optical matter-wave lens using time-averaged potentials

Albers, Henning; Corgier, Robin; Herbst, Alexander; Rajagopalan, Ashwin; Schubert, Christian; Vogt, Christian; Woltmann, Marian; Lämmerzahl, Claus; Herrmann, Sven; Charron, Eric; Ertmer, Wofgang; Rasel, Ernst M.; Gaaloul, Naceur; Schlippert, Dennis (London : Springer Nature, 2022)

The precision of matter-wave sensors benefits from interrogating large-particle-number atomic ensembles at high cycle rates. Quantum-degenerate gases with their low effective temperatures allow for constraining systematic ...
Characterisation of a Recombinant Patchoulol Synthase Variant for Biocatalytic Production of Terpenes

Frister, Thore; Hartwig, Steffen; Alemdar, Semra; Schnatz, Katharina; Thöns, Laura; Scheper, Thomas; Beutel, Sascha (New York City, NY : Springer Humana Press Inc., 2015)

The patchoulol synthase (PTS) is a multi-product sesquiterpene synthases which is the central enzyme for biosynthesis of patchouli essential oil in the patchouli plant. Sesquiterpene synthases catalyse the formation of ...
Degradation of proton exchange membrane (PEM) water electrolysis cells: Looking beyond the cell voltage increase

Suermann, Michel; Bensmann, Boris; Hanke-Rauschenbach, Richard (Bristol : IOP Publishing Ltd., 2019)

The degradation of proton exchange membrane water electrolysis cells is usually measured in a temporal increase of the cell voltage. Although this is sufficient to evaluate the stability of a system, it is less suitable ...
Fundamental material properties of the 2LiBH4-MgH2 reactive hydride composite for hydrogen storage: (II) Kinetic properties

Jepsen, Julian; Milanese, Chiara; Puszkiel, Julian; Girella, Alessandro; Schiavo, Benedetto; Lozano, Gustavo A.; Capurso, Giovanni; Von Colbe, José M. Bellosta; Marini, Amedeo; Kabelac, Stephan; Dornheim, Martin; Klassen, Thomas (Basel : MDPI AG, 2018)

Reaction kinetic behaviour and cycling stability of the 2LiBH4-MgH2 reactive hydride composite (Li-RHC) are experimentally determined and analysed as a basis for the design and development of hydrogen storage tanks. In ...
Funktionsanalyse menschlicher Myosin-Motordomänen

Heißler, Sarah Maria (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2010)

[no abstract]
High kinetic energy-ion mobility spectrometry-mass spectrometry investigations of several volatiles and their fully deuterated analogues

Weiss, Florentin; Eiceman, Gary; Märk, Tilmann D.; Mayhew, Chris A.; Ruzsanyi, Veronika; Schaefer, Christoph; Zimmermann, Stefan (Berlin ; Heidelberg : Springer, 2022)

The first High Kinetic Energy-Ion Mobility Spectrometry-Mass Spectrometry (HiKE-IMS-MS) studies involving six volatiles (acetone, acetonitrile, methanol, ethanol, 2-propanol, and 1-butanol) and their fully deuterated ...
Interaction of lignans with human sex hormone binding globulin (SHBG)

Schöttner, M.; Ganßer, D.; Spiteller, G. (Berlin : De Gruyter, 1997)

Lignans bind to sex hormone-binding globulin (SHBG). The lignan with the highest binding affinity is (±)-3,4-divanillyltetrahydrofuran. In a double Stobbe condensation - without use of protecting groups - a wide variety ...
Kinetic and mechanistic features on the reaction of stored TiO2 electrons with Hg (II), Pb (II) and Ni (II) in aqueous suspension

Mohamed, Hanan H.; Alomair, Nuhad A.; Bahnemann, Detlef W. (Amsterdam : Elsevier BV, 2016)

The reaction of electrons stored on TiO2 nanoparticles with heavy metal ions Hg (II), Ni (II) and Pb (II) has been studied employing steady state and stopped flow spectrophotometric techniques. Prior to kinetic investigation ...
Kinetic Parameters of the Cross-linking Reaction of Cellulose Membranes with Bifunctional Epoxides

Ruhr, Dominik; Reiche, Annette (Weinheim : Wiley-VCH Verl., 2022)

Kinetic parameters of the cross-linking reaction of porous cellulose membranes with aqueous solutions of two different diglycidyl ethers were determined by dynamic DSC experiments. The autocatalytic reaction behavior was ...
L-amino acid oxidases with specificity for basic L-amino acids in cyanobacteria

Gau, Achim E.; Heindl, Achim; Nodop, Anke; Kahmann, Uwe; Pistorius, Elfriede K. (Berlin : De Gruyter, 2007)

The two closely related fresh water cyanobacteria Synechococcus elongatus PCC 6301 and Synechococcus elongatus PCC 7942 have previously been shown to constitutively express a FAD-containing L-amino acid oxidase with high ...
Light intensity dependence of the kinetics of the photocatalytic oxidation of nitrogen(ii) oxide at the surface of TiO2

Dillert, Ralf; Engel, Astrid; Große, Julia; Lindner, Patrick; Bahnemann, Detlef W. (Cambridge : Royal Society of Chemistry, 2013)

Air pollution by nitrogen oxides represents a serious environmental problem in urban areas where numerous sources of these pollutants are concentrated. One approach to reduce the concentration of these air pollutants is ...
Local convection and turbulence in the Amazonia using Large Eddy Simulation model

Neves, Theomar; Fisch, Gilberto; Raasch, Siegfried (Basel : MDPI AG, 2018)

Using a high resolution model of Large Eddies Simulation (LES), named PALM from PArallel LES Model, a set of simulations were performed to understand how turbulence and convection behave in a pasture and forest sites in ...
Optimization of Photocatalytic Processes: Catalyst Design, Kinetics and Reaction Engineering

Bloh, Jonathan Zacharias (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2021)

The use of light energy to drive chemical reactions has gained increasing interest for a variety of applications in the last decades. This habilitation thesis comprises a selected number of original papers from the author's ...
Phenomenological modeling of combustion and NOx emissions using detailed tabulated chemistry methods in diesel engines

Rezaei, Reza; Dinkelacker, Friedrich; Tilch, Benjamin; Delebinski, Thaddaeus; Brauer, Maximilian (London : SAGE Publications Ltd., 2016)

Enhancing the predictive quality of engine models, while maintaining an affordable computational cost, is of great importance. In this study, a phenomenological combustion and a tabulated NOx model, focusing on efficient ...
Photocatalytic degradation of the herbicide imazapyr: Do the initial degradation rates correlate with the adsorption kinetics and isotherms?

Atitar, M. Faycal; Bouziani, Asmae; Dillert, Ralf; El Azzouzi, Mohamed; Bahnemann, Detlef W. (Cambridge : Royal Society of Chemistry, 2018)

The objective of this work is to correlate the photocatalytic degradation of the herbicide imazapyr in aqueous suspensions of the commercially available Evonik Aeroxide TiO2 P25 with the dark adsorption phenomena considering ...
Proteolytic release of the intramolecular chaperone domain confers processivity to endosialidase F

Schwarzer, David; Stummeyer, Katharina; Haselhorst, Thomas; Freiberger, Friedrich; Rode, Bastian; Grove, Melanie; Scheper, Thomas; Itzstein, Mark von; Mühlenhoff, Martina; Gerardy-Schahn, Rita (Bethesda, Md. : ASBMB Publications, 2009)

Endosialidases (endoNs), as identified so far, are tailspike proteins of bacteriophages that specifically bind and degrade the α2,8-linked polysialic acid (polySia) capsules of their hosts. The crystal structure solved for ...
Purification and partial characterization of an extracellular melanoprotein from the fungus Venturia inaequalis

Singh, P.; Piotrowski, M.; Gau, A.E. (Berlin : De Gruyter, 2005)

The fungus Venturia inaequalis clone No. 36 isolated from Malus domestica cv. Gloster excretes a melanoprotein of 36 kDa in relatively high amounts during growth in liquid culture. The protein was isolated from the culture ...
Scaling the Decay of Turbulence Kinetic Energy in the Free-Convective Boundary Layer

El Guernaoui, Omar; Reuder, Joachim; Esau, Igor; Wolf, Tobias; Maronga, Björn (Dordrecht : Springer Netherland, 2019)

We investigate the scaling for decaying turbulence kinetic energy (TKE) in the free-convective boundary layer, from the time the surface heat flux starts decaying, until a few hours after it has vanished. We conduct a set ...
Studies with lysine N6-hydroxylase. Effect of a mutation in the assumed FAD binding site on coenzyme affinities and on lysine hydroxylating activity

Stehr, Matthias; Smau, Liliana; Singh, Mahavir; Seth, Oliver; Macheroux, Peter; Ghisla, Sandro; Diekmann, Hans (Berlin : De Gruyter, 1999)

The proposed FAD binding site of L-lysine N6-hydroxylase (EC 1.14.13.99) exhibits an unusual proline in a position where a highly conserved glycine is found in other FAD dependent hydroxylases. We have studied the role of ...

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