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  • Springer  (254)
  • Wiley  (97)
  • American Geophysical Union  (17)
  • Nature Publishing Group  (16)
  • Cell Press
  • MDPI
  • 1990-1994  (373)
  • 1935-1939  (21)
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  • 11
    Digitale Medien
    Digitale Medien
    Reply to comments on “Fault prediction for analog circuits” (1990)
    Springer
    Circuits, systems and signal processing 9 (1990), S. 503-503 
    Details
    ISSN: 1531-5878
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01189339
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  • 12
    Digitale Medien
    Digitale Medien
    Farlie-Gumbel-Morgenstern bivariate densities: Are they applicable in hydrology? (1992)
    Springer
    Stochastic environmental research and risk assessment 6 (1992), S. 47-54 
    Details
    ISSN: 1436-3259
    Schlagwort(e): Bivariate density ; dependence structure ; correlation coefficient ; Farlie-Gumbel-Morgenstern density ; Farlie polynomial density
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Architektur, Bauingenieurwesen, Vermessung , Energietechnik , Geographie , Geologie und Paläontologie
    Notizen: Abstract Certain bivariate densities constructed from marginals have recently been suggested as models of hydrologic variates such as rainfall intensity and depth. It is pointed out that (i) these densities belong to the families of the Farlie-Gumbel-Morgenstern densities and the Farlie polynomial densities, which have been extensively studied in the statistical literature, and that (ii) these densities have a limited potential applicability in hydrology since they can model only weakly associated variates, whose product-moment correlationR is within the range |R|≤1/3, under the first family of densities, and |R|≤1/2 under the second family.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01581674
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  • 13
    Digitale Medien
    Digitale Medien
    The DNA helical biopolymer: A template for the binding, assembly, and reactivity of metal ions and complexes (1993)
    Springer
    Journal of inorganic and organometallic polymers and materials 3 (1993), S. 3-39 
    Details
    ISSN: 1572-8870
    Schlagwort(e): DNA ; metal complexes ; assembly ; cleavage ; biopolymers
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract The helical DNA polymer provides many structural features that facilitate the binding of metal ions or complexes. DNA binding inorganic agents have proven invaluable, with demonstrated applications ranging from chemotherapeutic agents to probes of DNA structure. This broad range of applications attests to the utility of inorganic agents in the design of compounds which interact with the DNA helix and is due, in part, to the ability of inorganic species to define a particular ligand geometry complementary to the DNA structure, bind, or chemically react along the polymer strand. While a diverse array of novel inorganic compounds that interact with DNA have already been studied, many opportunities still exist to exploit inorganic agents in the design of new molecules that will interact uniquely with the DNA polymer. This review examines the structure of the DNA polymer, emphasizing aspects which promote the binding of inorganic agents. Along with a structural overview, the binding modes available to an inorganic element or complex are reviewed, in combination with a discussion of the ability of the DNA to act as a template for the organized binding of inorganic agents. In addition, chemical alteration of the DNA polymer structure by inorganic agents is discussed, along with the potential utility of such modifications.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00696751
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  • 14
    Digitale Medien
    Digitale Medien
    Fast switching ferroelectric liquid crystal side chain polymer (1994)
    Springer
    Journal of polymer research 1 (1994), S. 191-196 
    Details
    ISSN: 1572-8935
    Schlagwort(e): Chiral propionate ; Chiral smectic C phase ; Ferroelectric liquid crystal ; Polyacrylate ; Liquid crystal side chain polymer
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Abstract Two products were isolated at a result of esterification of acrylic acid with 4-[4-(n-hydroxyundecanyloxy)phenyl] benzoic acid (5) One is 4-[4-(n-acryloloxy-undecanyloxy)phenyl] benzoic acid (6), and the other is 4-{4-[n-(3-acryloloxy-propionyloxy)undecanyloxy]phenyl}benzoic acid (7) which containts two molecules of acrylic acid. Compound7 is obtained unexpectedly and still unknown in the literature. Its identification is confirmed by the isolation and characterization of the monomer9. The mesogenic monomers8 and9 which were synthesized from 4-hydroxyphenyl 2(S)-[2(S)-methylbutoxylpropionate (4) and the corresponding acrylates6 and7 exhibit the enentiotropic Sc* and SA phases. The Sc* phase temperature range is up to 31 °C. The spontaneous polarization and response time for the monomers8 and9 is 97 and 16 nC/cm2 as well as 90 and 64 µs respectively. It us the liquid crystal side chain polymer11, not10, which is switchable in the presence of an electric field. The spontaneous polarization of 36 nC/cm2 and the response time of 3.1 ms is obtain from the new polyacrylate.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01374094
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  • 15
    Digitale Medien
    Digitale Medien
    Crosslinking of silicone modified polyamideimide (1994)
    Springer
    Journal of polymer research 1 (1994), S. 85-91 
    Details
    ISSN: 1572-8935
    Schlagwort(e): Structure of PAI ; Silicon modified ; Cross-linking ; Thermal property
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Abstract Prepolymers of polyamide-imide was synthesized with excess MDI and TMA in NMP. The resulting isocyanate terminated prepolymers mixed with silicon compound were heated. The chemical reaction and properties of the resulting polymers are studied with IR, NMR, TGA as well as dynamic mechanical measurement. Observation of experiments reveals that the addition of γ-APS enhances the crosslinking. The modified polyamide-imides exhibit excellent adhesion on glass. And the activation energy of cross-linking reaction as measured from DSC is 72 KJ/mole. The drastic weight loss of the post cured polymer took place at 500°C.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01378598
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  • 16
    Digitale Medien
    Digitale Medien
    Pollution control: A differential game approach (1992)
    Springer
    Annals of operations research 37 (1992), S. 283-296 
    Details
    ISSN: 1572-9338
    Schlagwort(e): Pollution control ; differential games ; bifurcation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik , Wirtschaftswissenschaften
    Notizen: Abstract Transnational pollution is formulated as a differential game between two sovereign governments. The symmetric open loop Nash equilibrium is shown to yield more pollution than in a cooperative solution. A model of Stackelberg leadership in pollution control is also investigated. The possibility of limit cycles is illustrated, using bifurcation theory.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02071061
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  • 17
    Digitale Medien
    Digitale Medien
    Propylene metathesis over Re2O7/Al2O3-B2O3 catalysts (1992)
    Springer
    Catalysis letters 14 (1992), S. 297-304 
    Details
    ISSN: 1572-879X
    Schlagwort(e): Propylene metathesis ; alumina aluminum borate ; rhenium oxide ; temperature-programmed reduction (TPR) ; temperature-programmed desorption (TPD)
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract A series of alumina aluminum borate (AAB) with various Al/B molar ratios were prepared by the coprecipitation method. The supported rhenium oxide catalysts with various contents of Re2O7 were also prepared by the impregnation method with perrhenic acid. The catalytic activity and stability of Re2O7/AAB catalysts for the reaction of propylene metathesis were tested in a fixed-bed microreactor. It was found that Re2O7/AAB is more active, stable and regenerable than Re2O7/Al2O3 for propylene metathesis. The optimum Al/B molar ratio was found to be in the range of 4–10.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00769667
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  • 18
    Digitale Medien
    Digitale Medien
    Dehydrogenative oligomerization reactivity of transition metal sulfides derived from their tris or bis(o-aminobenzenethiolato)metal complexes (1991)
    Springer
    Catalysis letters 8 (1991), S. 125-129 
    Details
    ISSN: 1572-879X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract Several tris or bis(o-aminobenzenethiolato)metal complexes, where metals include ruthenium, rhodium, rhenium, molybdenum, platinum, and palladium, were synthesized. They were used as precursors to active metal sulfide catalysts for dehydrogenative oligomerization of 1,2,3,4-tetrahydroquinoline (THQ). The conversion of metal complex precursors to the corresponding metal sulfides was carried outin situ in the THQ solution at 210–270 °C. These metal sulfides polymerized THQ to quinoline oligomers in 71–95% yield. We also observed a periodic trend on the activity of these catalysts showing a maximum oligomer yield with ruthenium sulfide.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00764108
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  • 19
    Digitale Medien
    Digitale Medien
    The oldest dinosaurs (1992)
    Springer
    Naturwissenschaften 79 (1992), S. 171-172 
    Details
    ISSN: 1432-1904
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01134434
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  • 20
    Digitale Medien
    Digitale Medien
    Altitudinal differences in δ13c of bristlecone pine tree rings (1992)
    Springer
    Naturwissenschaften 79 (1992), S. 178-180 
    Details
    ISSN: 1432-1904
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01134437
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