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  • Engineering  (4)
  • Nucleic Acid Enzymology  (1)
  • shallow waters  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    Transient and pseudo-transient analysis of Mindlin plates (1980)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 15 (1980), S. 189-208 
    Details
    ISSN: 0029-5981
    Schlagwort(e): Engineering ; Engineering General
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Mathematik , Technik allgemein
    Notizen: A unified approach is presented for the static and transient dynamic linear and geometrically nonlinear analysis of Mindlin plates including initial imperfections. The effects of transverse shear deformation and rotatory inertia are automatically taken into account. A finite element idealization is adopted and the quadratic Lagrangian Mindlin plate element is used together with selective integration. Several numerical examples are presented and compared with results from other sources.
    Zusätzliches Material: 17 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/nme.1620150204
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Further developments in transient and pseudo-transient analysis of Mindlin plates (1981)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 17 (1981), S. 1749-1761 
    Details
    ISSN: 0029-5981
    Schlagwort(e): Engineering ; Engineering General
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Mathematik , Technik allgemein
    Notizen: Some recent developments are presented on a unified approach to the static and transient dynamic geometrically nonlinear analysis of Mindlin plates with initial imperfections.
    Zusätzliches Material: 11 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/nme.1620171202
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Adaptive mesh refinement for faceted shells (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Communications in Applied Numerical Methods 8 (1992), S. 319-329 
    Details
    ISSN: 0748-8025
    Schlagwort(e): Engineering ; Engineering General
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Mathematik , Technik allgemein
    Notizen: The application of the Zienkiewicz and Zhu error estimator to three-dimensional faceted shells presents some difficulties which arise from the lack of C1 continuity of the geometry. This paper presents a method to circumvent such difficulties based on the existence of a mapping from a flat reference configuration to the actual shell. This mapping is used not only to enable meshes to be generated in a two-dimensional space, but also to define a stress measure - similar to the first Piola-Kirchhoff stress used in large deformation mechanics - which can be consistently smoothed over the reference configuration. A preliminary investigation of the method is provided by three simple examples.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/cnm.1630080506
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    A projection method for shallow water equations (1998)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 27 (1998), S. 81-95 
    Details
    ISSN: 0271-2091
    Schlagwort(e): shallow waters ; Navier-Stokes ; lagoons ; projections ; parallel computations ; Engineering ; Numerical Methods and Modeling
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Maschinenbau
    Notizen: The dynamics of shallow water has been studied and an algorithm for this dynamics has been developed. Results have been obtained with data of the Venice lagoon using a model made expressively by a semi-implicit method based on a finite element method in space. Comparison has been made between field data and the results of the simulation. Very good agreement is shown over a long period of simulation. © 1998 John Wiley & Sons, Ltd.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
  • 5
    facet.materialart.
    Unbekannt
    Probing the activity of diguanylate cyclases and c-di-GMP phosphodiesterases in real-time by CD spectroscopy (2013)
    Oxford University Press
    Details
    Publikationsdatum: 2013-04-14
    Beschreibung: Bacteria react to adverse environmental stimuli by clustering into organized communities called biofilms. A remarkably sophisticated control system based on the dinucleotide 3'–5' cyclic diguanylic acid (c-di-GMP) is involved in deciding whether to form or abandon biofilms. The ability of c-di-GMP to form self-intercalated dimers is also thought to play a role in this complex regulation. A great advantage in the quest of elucidating the catalytic properties of the enzymes involved in c-di-GMP turnover (diguanylate cyclases and phosphodiesterases) would come from the availability of an experimental approach for in vitro quantification of c-di-GMP in real-time. Here, we show that c-di-GMP can be detected and quantified by circular dichroism (CD) spectroscopy in the low micromolar range. The method is based on the selective ability of manganese ions to induce formation of the intercalated dimer of the c-di-GMP dinucleotide in solution, which displays an intense sigmoidal CD spectrum in the near-ultraviolet region. This characteristic spectrum originates from the stacking interaction of the four mutually intercalated guanines, as it is absent in the other cyclic dinucleotide 3'–5' cyclic adenilic acid (c-di-AMP). Thus, near-ultraviolet CD can be used to effectively quantify in real-time the activity of diguanylate cyclases and phosphodiesterases in solution.
    Schlagwort(e): Nucleic Acid Enzymology
    Print ISSN: 0305-1048
    Digitale ISSN: 1362-4962
    Thema: Biologie
    Publiziert von Oxford University Press
    Standort Signatur Erwartet Verfügbarkeit
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