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Digitale Medien

A simple correlation for predicting effective diffusivities in immobilized cell systems (1996)

Riley, Mark R. ; Muzzio, Fernando J. ; Buettner, Helen M. ; [weitere]

New York, NY [u.a.] : Wiley-Blackwell

Biotechnology and Bioengineering 49 (1996), S. 223-227

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ISSN: 0006-3592

Schlagwort(e): immobilized cells ; diffusivity measurement ; Chemistry ; Biochemistry and Biotechnology

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Biologie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: A simple correlation method has been developed to predict effective diffusivities of small molecules in heterogeneous materials such as immobilized cell systems. This correlation uses a single diffusivity measurement at one cell volume fraction to predict diffusivities for any other volume fraction of cell. The method has been applied to 20 sets of published diffusivity measurements in immobilized cell systems and accurately predicts affective diffusivities of molecules for the full range of cell fractions. It may also be used to predict effective diffusivities in heterogeneous materials in which the diffusivity of a molecule in each phase and the volume fraction of each phase are known. © 1996 John Wiley & Sons, Inc.

Zusätzliches Material: 3 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/bit.260490202

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Digitale Medien

Diffusion in heterogeneous media: Application to immobilized cell systems (1995)

Riley, Mark R. ; Muzzio, Fernando J. ; Buettner, Helen M. ; [weitere]

Hoboken, NJ : Wiley-Blackwell

AIChE Journal 41 (1995), S. 691-700

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ISSN: 0001-1541

Schlagwort(e): Chemistry ; Chemical Engineering

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: Transport of small molecules in heterogeneous materials can be an important factor in many engineering and biological applications. This study focuses on the diffusion of cellular nutrients in an immobilized cell system. A Monte Carlo simulation technique is used to describe the diffusion of small molecules in a variety of simulated cellular structures. Diffusivity predictions are in close agreement with experimental values as well as with theoretical bounds reported in the literature. It is revealed that effective diffusivities are highly dependent on the diffusivities of the species in the various phases and on the volume fraction of cells. The spatial arrangement of the cells, however, has no apparent effect on the predicted diffusivity for the range of conditions investigated.

Zusätzliches Material: 10 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/aic.690410326

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Digitale Medien

C-glycosides III.La référence [2] constitue la 2me communication de cette série Cyclo-additions dipolaires - 1,3 d'oxydes de nitriles et de nitrilimines. Communication préliminaireUne communication plus détaillée est destinée à paraître dans cette revue (1970)

Tronchet, J. M. J. ; Jotterand, A. ; Le Hong, N. ; [weitere]

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 53 (1970), S. 1484-1489

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ISSN: 0018-019X

Schlagwort(e): Chemistry ; Organic Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: 1.3-dipolar cycloaddition of alkenes (or alkynes) on sugars-nitriloxides and nitrilimines led respectively to 3-glycosyl-isoxazolines (or isoxazoles) and 3-glycosyl-pyrazolines (or pyrazoles). 5-glycosyl-isoxazolines were similarly prepared from arylnitriloxides and α- or ω-unsaturated sugars. These new C-glycosides are potential antiviral and anti-tumor agents.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/hlca.19700530631

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Benthic community composition along the Thousand Islands north of the megacity Jakarta, Indonesia (2015)

Baum, Gunilla ; Januar, Hedi Indra ; Ferse, Sebastian C A ; [weitere]

PANGAEA

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Publikationsdatum: 2023-02-12

Schlagwort(e): AB; Acropora, cover; Alcyonacea, cover; Ayer_Besar; B; C; Coral cover, branching corals; Coral cover, dead corals; Coral cover, digitate corals; Coral cover, encrusting corals; Coral cover, foliose corals; Coral cover, submassive corals; Corals, cover; DATE/TIME; Event label; Gosong_Conkak; Gosong_Panggang; Java Sea; Kayu_Angin_Bira; Latitude of event; Longitude of event; Macroalgae, cover; MULT; Multiple investigations; non-Acropora, cover; P; Pari_North; Pari_South; Pavement, cover; PN; PS; R; Rambut; Rubble fields, cover; Sand, cover; Scleractinia, cover; Site; UJ; Untung_Jawa

Materialart: Dataset

Format: text/tab-separated-values, 384 data points

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