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  • 11
    Electronic Resource
    Electronic Resource
    Relativistic effects for near-earth satellite orbit determination (1990)
    Springer
    Celestial mechanics and dynamical astronomy 48 (1990), S. 167-185 
    Details
    ISSN: 1572-9478
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The relativistic formulations for the equations which describe the motion of a near-Earth satellite are compared for two commonly used coordinate reference systems (RS). The discussion describes the transformation between the solar system barycentric RS and both the non-inertial and inertial geocentric RSs. A relativistic correction for the Earth's geopotential expressed in the solar system barycentric RS and the effect of geodesic precession on the satellite orbit in the geocentric RS are derived in detail. The effect of the definition of coordinate time on scale is also examined. A long-arc solution using 3 years of laser range measurements of the motion of the Lageos satellite is used to demonstrate that the effects of relativity formulated in the geocentric RS and in the solar system barycentric RS are equivalent to a high degree of accuracy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00049512
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  • 12
    Electronic Resource
    Electronic Resource
    Prediction of Fracture Risk by Radiographic Absorptiometry and Quantitative Ultrasound: A Prospective Study (1998)
    Springer
    Calcified tissue international 63 (1998), S. 380-384 
    Details
    ISSN: 1432-0827
    Keywords: Key words: Fracture risk — Radiographic absorptiometry — Quantitative ultrasound — Prospective study.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Abstract. Recent developments in computer-assisted radiographic absorptiometry (RA) and quantitative ultrasound techniques (QUS) provide readily accessible and relatively inexpensive methods for assessing bone mineral status. However, few population-based studies have investigated the ability of RA and ultrasound to predict fracture risk prospectively. We explored the ability of RA and QUS to predict fracture risk among 560 postmenopausal women from the Hawaii Osteoporosis Study; average follow-up was 2.7 years. An incident vertebral fracture was defined as a decrease of more than 15% in vertebral heights on subsequent films. Self-reported nonspine fractures were verified by medical records. The prospective associations of vertebral fractures, nonspine fractures, and any (spine or nonspine) fractures with bone measurements were examined using logistic regression, adjusting for age. Both phalangeal bone mineral density (BMD) and metacarpal BMD, measured using RA, predicted future fracture risk. The age-adjusted odds ratios (corresponding to 1 SD decrease in BMD) for vertebral fractures, nonspine fractures, and any fractures were 3.41, 1.50, and 1.91, respectively, for phalangeal BMD, and 1.71, 1.49, 1.55, respectively for metacarpal BMD. Calcaneal broadband ultrasound attenuation (BUA) also showed significant association with fracture risk, with age-adjusted odds ratios of 1.50, 1.89, and 1.72 for vertebral fractures, nonspine fractures, and any fractures, respectively. We conclude that hand RA and calcaneal BUA are significant predictors of nonspine fracture, vertebral fracture, and overall fracture risk. The attractive features of these techniques, such as portability, relatively low cost, and ease of use, make them promising alternatives to conventional bone measurement techniques used for the assessment of fracture risk.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002239900544
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  • 13
    Electronic Resource
    Electronic Resource
    The Santiago Peak Volcanic rocks of the Peninsular Ranges batholith, Southern California: volcanic rocks associated with coeval gabbros (1984)
    Springer
    Bulletin of volcanology 47 (1984), S. 153-171 
    Details
    ISSN: 1432-0819
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Analyses of the latest Jurassic Santiago Peak volcanic rocks from the western zone of the Peninsular Ranges batholith reveal the existence of two independent groups; one comprising basalts and andesites of the island arc tholeiitic series, and the second made up of the dacites and rhyolites of the subalkaline (calc-alkaline?) series or silicic series. The basalts and andesites have V, Co and Ni contents similar to those estimated for the residual melts in equilibrium with the Peninsular Ranges gabbros. This fact together with the tholeiitic nature of the gabbros and the intimate spatial and temporal relationship between the SPV and the gabbros suggests that the basalts and andesites had a common origin with the gabbros. The mafic volcanism and plutonism seems to have occurred in a youthful island arc and the silicic volcanism in a mature island arc or a continental margin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01960546
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  • 14
    Electronic Resource
    Electronic Resource
    Multilinear algebra and parallel programming (1991)
    Springer
    The journal of supercomputing 5 (1991), S. 189-217 
    Details
    ISSN: 1573-0484
    Keywords: Multilinear algebra ; tensor product ; parallel programming ; Strassen's algorithm ; CRAY Y-MP ; Encore Multimax
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract We discuss a programming methodology based on the use of multilinear algebra to design and implement parallel algorithms for linear computations. In particular, we review techniques for implementing expressions involving the tensor product. We then show how the tensor product can be used to formulate Strassen's matrix multiplication algorithm. We report on our experience using this formulation and these techniques to implement a parallel version of Strassen's matrix multiplication algorithm on the Encore Multimax.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00127843
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  • 15
    Electronic Resource
    Electronic Resource
    The energy function for isotropic materials with couple stresses (1967)
    Springer
    Zeitschrift für angewandte Mathematik und Physik 18 (1967), S. 905-909 
    Details
    ISSN: 1420-9039
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Zusammenfassung Die Arbeit bezieht sich auf die von Toupin entwickelte Theorie der Momentenspannungen. Es werden die Invarianten der Energiefunktion eines rein elastischen isotropen Materials dieser Art hergeleitet. Die Verzerrungsenergie ihrerseits lässt sich als Polynom in diesen Invarianten ausdrücken.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01602729
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  • 16
    Electronic Resource
    Electronic Resource
    Characterization of a temperate phage isolated from Leuconostoc oenos strain 1002 (1996)
    Springer
    Applied microbiology and biotechnology 45 (1996), S. 472-476 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract  A temperate phage was induced by mitomycin C from Leuconostoc oenos strain 1002, a New Zealand isolate. The phage has an isometric head (52±3 nm) with a tail (210±10 nm) and gives a lytic burst size of 25 when grown on a sensitive strain. Three major structural proteins of 43, 30 and 14 kDa are visible by Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). A restriction map of the 36-kb genome was determined. Commercially available L. oenos strains PSU-1, ML34 and Lco23 and 46.6% of New Zealand isolates were sensitive to the phage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00578458
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  • 17
    Electronic Resource
    Electronic Resource
    Characterization of a temperate phage isolated fromLeuconostoc oenos strain 1002 (1996)
    Springer
    Applied microbiology and biotechnology 45 (1996), S. 472-476 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract A temperate phage was induced by mitomycin C fromLeuconostoc oenos strain 1002, a New Zealand isolate. The phage has an isometric head (52 ± 3 nm) with a tail (210 ± 10 nm) and gives a lytic burst size of 25 when grown on a sensitive strain. Three major structural proteins of 43, 30 and 14 kDa are visible by Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). A restriction map of the 36-kb genome was determined. Commercially availableL. oenos strains PSU-1, ML34 and Lco23 and 46.6% of New Zealand isolates were sensitive to the phage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00578458
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  • 18
    Electronic Resource
    Electronic Resource
    Accelerated domain decomposition iterative procedures for mixed methods based on Robin transmission conditions (1998)
    Springer
    Calcolo 35 (1998), S. 131-147 
    Details
    ISSN: 1126-5434
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract: A nonoverlapping domain decomposition iterative procedure based on Robin transmission conditions applicable to elliptic boundary problems was first introduced by P.~L.~Lions and later discussed by a number of authors under the assumption that the weighting of the flux and the trace of the solution in the Robin interface condition be independent of the iterative step number. Recently, the authors [6] studied a finite difference method for a Dirichlet problem and introduced a cycle of weights for the flux in this interface condition and proved that an acceleration in the convergence rate similar to that occurring for alternating-direction iteration using a cycle of pseudo-time steps results. The objects of this paper are to describe an analogous procedure for a mixed finite element approximation for a model Neumann problem and to consider an overlapping subdomain of the iteration, while retaining the variable parameter cycle. It will be shown that a greater acceleration of the iteration can be obtained by combining overlap and the parameter cycle than by the separate use of either.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100920050013
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  • 19
    Electronic Resource
    Electronic Resource
    Karyological studies on fifteen forms of amphisbaenians (Amphisbaenia-Reptilia) (1967)
    Springer
    Chromosoma 22 (1967), S. 1-15 
    Details
    ISSN: 1432-0886
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The chromosome constitutions of 15 forms (2 acrodonts and 13 pleurodonts) of amphisbaenians belonging to two families and eight genera were studied. The diploid chromosome numbers varied from 30 to 44 with the number of chromosome arms (FN) ranging from 42 to 60. The karyotypes of 12 forms all contained 6 pairs of macrochromosomes with similar morphology and 9 to 12 pairs of microchromosomes. The remaining three species had a higher diploid number (40–44) and a wide variation in chromosome morphology. Karyotype variations were found in the same family, even in the same genus. The lengths of the 6 pairs of macrochromosomes in 5 of the 12 forms were measured and compared. This disclosed similarities in the mean lengths, relative lengths, and arm ratios of those forms. — Chromosome patterns found in the present study support, in general, the classification of amphisbaenians derived from analysis of morphological characters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00291283
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  • 20
    Electronic Resource
    Electronic Resource
    An inverse heat conduction problem of estimating boundary fluxes in an irregular domain with conjugate gradient method (1998)
    Springer
    Heat and mass transfer 34 (1998), S. 47-54 
    Details
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A Boundary Element Method (BEM)-based inverse algorithm utilizing the iterative regularization method, i.e. the Conjugate Gradient Method (CGM), is used to solve the Inverse Heat Conduction Problem (IHCP) of estimating the unknown transient boundary heat flux in a multi-dimensional domain with arbitrary geometry. Results show that the advantages of applying the CGM in the inverse calculations lie in that the major difficulties in (i) choosing a suitable quadratic norm, (ii) determining a proper regularization order and (iii) determining the optimal smoothing (or regularization) coefficient in the conventional Regularization Method (RM) are avoided.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002310050230
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