Search Results - (Author, Cooperation:M. Ruffier)

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  1. 1
    Staff View
    Publication Date:
    2014-08-30
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Animals, Domestic/anatomy & histology/*genetics/psychology ; Animals, Wild/anatomy & histology/*genetics/psychology ; Base Sequence ; Behavior, Animal ; Breeding ; Evolution, Molecular ; Gene Frequency ; Genetic Loci ; Genome/genetics ; Molecular Sequence Data ; Phenotype ; Polymorphism, Single Nucleotide ; Rabbits/anatomy & histology/*genetics/psychology ; Selection, Genetic ; Sequence Analysis, DNA
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    ISSN:
    1573-4803
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes:
    Abstract Blends of unsaturated polyester, styrene and polyvinyl acetate are hot cured either between glass plates or under pressure in a molding simulator. The morphologies of the products are observed using microscopy and show their usual aspects. They are characterized according to fractal concepts by image processing; the influence of mixture composition, pressure and temperature is investigated. Based on the hypothesis that phase separation governs the shrinkage compensation, a computer simulation of the fissuration phenomenon is performed using the diffusion limited agregation (DLA) model. This fractal model gives realistic results, and is used to show the effect of network parameters on the fissures fractal dimensions.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  3. 3
    Ruffier, M. ; Vincent, N. ; Merle, G.
    Springer
    Published 1993
    Staff View
    ISSN:
    1436-2449
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Physics
    Notes:
    Abstract Blends of unsaturated polyester resin and polyvinylacetate (PVAc) were cured between two glass slides. In this case, the low-profile effect arises by fissuring with a fractal geometry. This paper shows how the fractal dimension of the fissures depends on the PVAc amount and on the cure temperature. These results are discussed with the present knowledge about the polyester network morphology in two phases more or less co-continuous.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  4. 4
    Ruffier, M. ; Merle, G. ; Pascault, J. P.

    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Published 1993
    Staff View
    ISSN:
    0032-3888
    Keywords:
    Chemistry ; Chemical Engineering
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Chemistry and Pharmacology
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Physics
    Notes:
    Blends of unsaturated polyester resin and polyvinylacetate (PVAc) were molded with a new instrument called the Plastoreactomat (PRM). The shrinkage and exothermic peak of polymerization were recorded during moding, and the influence of the processing conditions (pressure and temperature) on these phenomena and on the morphology was investigated for various PVAc contents. Within the limits of this study, it was found that shrinkage increases as the temperature and pressure increase. These results are discussed in terms of a competition between the phase separation and the reaction rates. In addition, it was verified that a co-continuous two-phase system consisting of the PVAc and the polyester network enhances the low-profile behavior.
    Additional Material:
    11 Ill.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses