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  • Springer  (18)
  • Wiley-Blackwell  (2)
  • Seismological Society of America  (1)
  • 1995-1999  (17)
  • 1975-1979  (4)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Approximations of Bayes decision problems: the epigraphical approach (1995)
    Springer
    Annals of operations research 56 (1995), S. 1-13 
    Details
    ISSN: 1572-9338
    Keywords: Bayesian decisions ; epi-convergence ; integral functionals ; Monte Carlo importance sampling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract Solving Bayesian decision problems usually requires approximation procedures, all leading to study the convergence of the approximating infima. This aspect is analysed in the context of epigraphical convergence of integral functionals, as minimal context for convergence of infima. The results, applied to the Monte Carlo importance sampling, give a necessary and sufficient condition for convergence of the approximations of Bayes decision problems and sufficient conditions for a large class of Bayesian statistical decision problems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02031697
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  • 2
    Electronic Resource
    Electronic Resource
    Identification of new enzyme activities of several strains of Thermus species (1995)
    Springer
    Applied microbiology and biotechnology 44 (1995), S. 81-87 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract New thermostable enzyme activities of seven Thermus strains were compared using the API ZYM system. All the strains exhibited high levels of α- and β-glycosidases, esterase (C4) and esterase-lipase (C8) activities intracellularly. Only T. thermophilus HB8 (ATCC 27634) showed α-glucosidase and esterase activities in the supernatant. According to the intensity of β-galactosidase activity, Thermus strains were divided in three groups. Group 0, which showed a weak β-galactosidase activity, included Thermus spp. ATCC 31674 (T351) and 27978 (X-1) as well as T. thermophilus ATCC 27634 (HB8). Group I which consisted of T. aquaticus ATCC 25104 (YT-1), ATCC 25105 (Y-VII-51B) and Thermus sp. ATCC 27737 (T2), had a specific activity of approximately 40.0 U mg−1 and galactose as inducer. T. aquaticus ATCC 31558 (group 2) was particularly effective for β-galactosidase production (2840 U) with a specific activity of 98 U mg−1. For each strain, galactose (0.5%) was a better inducer of β-galactosidase production than lactose (1%). The detection of β-galactosidase activity was dependent on the derivative chromogenic substrates used (naphthyl or nitrophenol coupled to sugar). Oligosaccharides were synthesized from cellobiose, lactulose, maltose or lactose as substrates at high temperature in some strains of Thermus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00164484
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  • 3
    Electronic Resource
    Electronic Resource
    Identification of new enzyme activities of several strains of Thermus species (1995)
    Springer
    Applied microbiology and biotechnology 44 (1995), S. 81-87 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract  New thermostable enzyme activities of seven Thermus strains were compared using the API ZYM system. All the strains exhibited high levels of α- and β-glycosidases, esterase (C4) and esterase-lipase (C8) activities intracellularly. Only T. thermophilus HB8 (ATCC 27634) showed α-glucosidase and esterase activities in the supernatant. According to the intensity of β-galactosidase activity, Thermus strains were divided in three groups. Group 0, which showed a weak β-galactosidase activity, included Thermus spp. ATCC 31674 (T351) and 27978 (X-1) as well as T. thermophilus ATCC 27634 (HB8). Group I which consisted of T. aquaticus ATCC 25104 (YT-1), ATCC 25105 (Y-VII-51B) and Thermus sp. ATCC 27737 (T2), had a specific activity of approximately 40.0 U mg-1 and galactose as inducer. T. aquaticus ATCC 31558 (group 2) was particularly effective for β-galactosidase production (2840 U) with a specific activity of 98 U mg-1. For each strain, galactose (0.5%) was a better inducer of β-galactosidase production than lactose (1%). The detection of β-galactosidase activity was dependent on the derivative chromogenic substrates used (naphthyl or nitrophenol coupled to sugar). Oligosaccharides were synthesized from cellobiose, lactulose, maltose or lactose as substrates at high temperature in some strains of Thermus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002530050523
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  • 4
    Electronic Resource
    Electronic Resource
    Boundary integral equation formulation for Interface cracks in anisotropic materials (1997)
    Springer
    Computational mechanics 20 (1997), S. 261-266 
    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 We present a boundary integral formulation for anisotropic interface crack problems based on an exact Green's function. The fundamental displacement and traction solutions needed for the boundary integral equations are obtained from the Green's function. The traction-free boundary conditions on the crack faces are satisfied exactly with the Green's function so no discretization of the crack surfaces is necessary. The analytic forms of the interface crack displacement and stress fields are contained in the exact Green's function thereby offering advantage over modeling strategies for the crack. The Green's function contains both the inverse square root and oscillatory singularities associated with the elastic, anisotropic interface crack problem. The integral equations for a boundary element analysis are presented and an example problem given for interface cracking in a copper-nickel bimaterial.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004660050246
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  • 5
    Electronic Resource
    Electronic Resource
    Driving traction on phase boundary interfaces in solids with boundary elements (1998)
    Springer
    Computational mechanics 22 (1998), S. 19-25 
    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 A method of computing driving tractions for phase transformations is presented. The driving traction calculation requires evaluating the jump in the displacement gradient and the average stress acting across the interface. A bimaterial Green's function is used in a boundary element formulation for the calculation. The Green's function satisfies all interface boundary conditions for the bimaterial providing an efficient formulation for evaluating the necessary jump and average interface terms. We derive a boundary integral equation for calculating the driving traction and apply the developed numerical tool to driving traction calculations in copper-aluminum-nickel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004660050334
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  • 6
    Electronic Resource
    Electronic Resource
    A new polymorphism of arylsulfatase A within the coding region (1996)
    Springer
    Human genetics 〈Berlin〉 98 (1996), S. 348-350 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A 10-year-old boy with juvenile metachromatic leukodystrophy (MLD) presented with the 459 + 1G→A arylsulfatase A (ASA) mutation on one allele. To detect his complete genotype, the other ASA allele was sequenced and a T-to-C transition at nucleotide 376 in exon 2 was identified. This missense mutation results in a substitution of leucine 76 by proline. Of 20 MLD unrelated controls, 18 carried the L/P76 mutation either in the homozygous (n = 6) or heterozygous (n = 12) state. The presence or absence of L/P76 did not influence leukocyte ASA activity or urinary sulfatide excretion. Apparently, the substitution of leucine 76 by proline is a common ASA polymorphism, neither being related to MLD nor creating ASA pseudodeficiency. However, because of its frequency and location, L/P76 may be of particular importance in genetic studies requiring the differentiation of the ASA alleles within a kindred. Further studies are directed to the as yet unresolved genotype of the index case with juvenile MLD.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004390050221
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  • 7
    Electronic Resource
    Electronic Resource
    cis-trans-Photoisomerisierung in Copolymeren aus Styrol oder Methylmethacrylat mit 4-Vinyl-4′-dimethylaminoazobenzol in Lösung (1975)
    Springer
    Colloid & polymer science 253 (1975), S. 345-345 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02352185
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  • 8
    Electronic Resource
    Electronic Resource
    Local triboelectricity on oxide surfaces (1999)
    Springer
    The European physical journal 12 (1999), S. 471-477 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 73.20.-r Surface and interface electron states – 73.40.-c Electronic transport in interface structures – 73.90.+f Other topics in electronic structure and electrical properties of surfaces, interfaces, and thin films
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: In triboelectric phenomena, electric charges are transferred when two materials are touched or rubbed together. We present in this paper a study of this effect performed on metallic oxides at the nanometric scale by an Atomic Force Microscope in the resonant mode. We show that following the electrification processes, positive or negative charges can be deposited. From our experimental data, we conclude that the charge transfer results in an equilibrium final state, the occupied states in the gap being “surface states” with large density and spread under the surface along a characteristic distance of about 100 nm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510051028
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  • 9
    Electronic Resource
    Electronic Resource
    Evaluation of the capacitive force between an atomic force microscopy tip and a metallic surface (1998)
    Springer
    The European physical journal 2 (1998), S. 5-10 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 06.30.-k Measurements common to several branches of physics and astronomy - 07.50.-e Electrical and electronic components, instruments, and techniques - 41.20.-q Electric, magnetic, and electromagnetic fields
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We propose a very simple method to determine the electrical tip-surface force in Atomic Force Microscopes used to study the electrical properties of metallic or insulating materials; the analysis of the measurements as well as determination of the appropriate experimental procedures requiring an analytical model of the tip-surface capacitance. The comparison of force expressions obtained by this method with those obtained by exact derivation in the case of the sphere-infinite plane system shows very good agreement. This method is then applied to determine the tip-surface force, the real shape of the tip being introduced in the derivation. The obtained expression is compared to experimental and numerical data. We emphasize that this method is very general and can be applied to any axially symmetric capacitor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510050219
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  • 10
    Electronic Resource
    Electronic Resource
    Mehrfunktionelle N-Tenside. I. Nucleophile Substitutionen an Bischlornitrosoverbindungen. 1. Reaktionen mit Aminen, Mercaptanen und Natriumazid (1978)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 320 (1978), S. 433-451 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Polyfunctionalized N-Tensides. I. Nucleophilic Substitutions with Bischloronitrosocompounds. 1. Reactions with Amines, Mercaptans and Sodium AzideChloronitrosation of alkenes gives bischloronitrosocompounds 1, which react with amines to α-aminooximes (2 and 4), with mercaptans to α-alkylthiooximes 11, and with sodium azide to α-azidooximes 8. Reduction with LiAlH4 gives vicinal substituted diamines (6, 7, 10) from α-amino-or α-azidooximes (2, 4, 8) and β-alkylthioamines 13 from α-alkylthiooximes 11.The determination of E- or Z-configuration in the α-substituted oximes is discussed.
    Additional Material: 8 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19783200310
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