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  • 1
    Electronic Resource
    Electronic Resource
    Photoelectron spectroscopy of the tin dichalcogenides SnS2-xSex intercalated with cobaltocene (1990)
    s.l. : American Chemical Society
    Inorganic chemistry 29 (1990), S. 3860-3866 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic00344a041
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  • 2
    Electronic Resource
    Electronic Resource
    Phospholipase D Inhibitors from a Myrsine Species (1995)
    s.l. : American Chemical Society
    Journal of natural products 58 (1995), S. 1492-1497 
    Details
    ISSN: 1520-6025
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/np50124a003
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  • 3
    Electronic Resource
    Electronic Resource
    Hydrophilous Pollination (1988)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Ecology, Evolution, and Systematics 19 (1988), S. 261-279 
    Details
    ISSN: 0066-4162
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.es.19.110188.001401
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  • 4
    Electronic Resource
    Electronic Resource
    Structure of the two-dimensional medium-pore high-silica zeolite NU-87 (1991)
    [s.l.] : Nature Publishing Group
    Nature 353 (1991), S. 417-420 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Zeolites are conventionally crystalline alumino-silicates with framework structures, built by corner sharing of Si(Al)O4 tetrahedra, enclosing cavities and channels of molecular dimensions. These properties are exploited extensively in sorp-tion and separation processes, ion exchange and catalysis. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/353417a0
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  • 5
    Electronic Resource
    Electronic Resource
    A constitutive formulation for anisotropic materials suitable for wave propagation computer programs—II (1994)
    Springer
    Computational mechanics 15 (1994), S. 201-223 
    Details
    ISSN: 1432-0924
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The constitutive relationships for an anisotropic material are established for shock wave propagation and nonlinear, large deformation computer programs, commonly referred to as hydrocodes. Stresses are formulated in terms of strains; the procedure for separating material compressibility effects (equation of state) from strength effects is formulated which permits the consistent calculation of stresses in the elastic regime, and allows the mean pressure to be defined in accordance with their scalar interpretations. Futher, this procedure permits the computation of inelastic response by scaling of deviatoric stresses, so the equivalent stress resides on a yield or failure surface, without changing the pressure. The procedure for computing the equivalent plastic strain and non-radial return to the yield surface, which results from a calculated overstress, is developed. Also, the transformation matrices for large deformation (rotation), necessary for transformation between material and geometric coordinates, are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00375030
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  • 6
    Electronic Resource
    Electronic Resource
    EXAFS and molecular modelling studies of Rb1−xBixF1+2x (1994)
    Springer
    Journal of materials science 29 (1994), S. 2725-2733 
    Details
    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 The fluorite structured mixed metal fluorides Rb1−x Bi x F1+2x (0.5≤x≥0.75) are exceptionally good F− ion conductors, a property which is clearly related to the mixed nature of the cation sub-lattice. Extended X-ray absorption fine structure (EXAFS) has been used to study the local structure of the two types of cation in Rb1−x Bi x F1+2x as a function of x. The results reveal marked differences for the local environments of Rb+ and Bi3+. Considerable short-range order develops as x deviates from 0.5, and this can be correlated with the relative conductivities of these materials. Molecular dynamics (MD) has been used to yield complementary information on structural properties. Simulations were performed for a series of temperatures between 80 K and 750 K. Excellent agreement between EXAFS and MD is obtained. A non-collinear interstitialcy mechanism is proposed for anion diffusion, which is seen to be the basis for more complex concerted processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00356824
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  • 7
    Electronic Resource
    Electronic Resource
    Hydrophilous pollination and reproductive morphology in the seagrassPhyllospadix scouleri (Zosteraceae) (1992)
    Springer
    Plant systematics and evolution 180 (1992), S. 65-75 
    Details
    ISSN: 1615-6110
    Keywords: Marine angiosperms ; Zosteraceae ; Phyllospadix scouleri ; Abiotic pollination ; dioecism ; hydrophilous pollination ; submarine pollination ; surface pollination ; seagrasses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In the seagrassPhyllospadix scouleri (Zosteraceae) floral aggregates (spadices) occur on short lateral axes produced by subordinate vegetative shoots. The filamentous pollen is both dispersed on the surface of the sea as well as below the surface. In surface pollination, snowflake-like search vehicles (pollen rafts) float and collide with any rigid female inflorescences that emerge from the water surface. In submarine pollination, collinear bundles of pollen grains are dispersed. Analysis of seed set indicates ovule position within the inflorescence to affect likelihood of fertilization in submarine, but not surface-pollinated inflorescences. Agamospermy appears to be unlikely, but the strongly female-biased shoot sex ratio remains to be explained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00940398
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  • 8
    Electronic Resource
    Electronic Resource
    Molecular organization in structural PVDF (1998)
    Springer
    Journal of materials science 33 (1998), S. 3511-3517 
    Details
    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 Poly(vinylidene fluoride) containing 10% dibutyl sebacate plasticizer, as used in the construction of flexible oil and gas pipelines, has been exposed to raised temperatures for prolonged periods of time, to acid etching and to various tensile deformation regimes. The effects of these treatments on the crystallinity and surface properties of this material have been examined in the light of analytical data obtained by Fourier transform–infrared spectroscopy, differential scanning calorimetry, X-ray diffraction, X-ray photoelectron spectroscopy, goniometry and a variety of microscopy techniques. The results have shown that the molecular organization of this material can be influenced by the adoption of appropriate preconditioning procedures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004630623660
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  • 9
    Electronic Resource
    Electronic Resource
    Book review: Symmetry and structure. S. F. A. Kettle, 2nd edition, John Wiley and Sons, Chichester, 1995, 430 pages. £19.99, ISBN 0-471-95476-4 (1997)
    New York, NY [u.a.] : Wiley-Blackwell
    Applied Organometallic Chemistry 11 (1997), S. 756-756 
    Details
    ISSN: 0268-2605
    Keywords: Chemistry ; Industrial Chemistry and Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Some factors that influence prolonged interfacial continuity (1984)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 18 (1984), S. 383-393 
    Details
    ISSN: 0021-9304
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: Bringing a percutaneous implant through the integument with the intentions of leaving it as a functional device for prolonged periods of time has not yet become a reality. If we are ever to achieve prolonged uninfected implants, attention must be directed toward a variety of failure mechanisms. Some of these mechanisms have defined our scrutiny, and our awareness of others are poorly understood. Some of the causes for failure of a percutaneous implant are the forces, either extrinsic or intrinsic, that cause shearing and tearing at the skin-implant interface. Extrinsic forces are defined as those forces applied either to the skin or the implant by the external environment. Intrinsic forces are those that have to do directly or indirectly with the body's growth and cell maturation, such as the retraction of maturing scar tissue and the surface migration of squamous epithelium. An intact skin-implant interface is important to attain in order to close the portal which might allow microbial invasion. The integument must remain intact, since a suppurative wound makes the implant's removal mandatory.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jbm.820180406
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