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  • 1
    Electronic Resource
    Electronic Resource
    Adsorption effects in aluminophosphate molecular sieves studied by27Al double-rotation NMR (1992)
    Springer
    Catalysis letters 15 (1992), S. 65-73 
    Details
    ISSN: 1572-879X
    Keywords: NMR (DOR) spectroscopy ; aluminophosphate ; molecular sieves ; aluminum environment ; adsorption sites ; structural disorder ; water adsorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract 27Al double rotation NMR (DOR) spectroscopy is used to investigate structural changes in the framework of several aluminophosphate molecular sieves upon adsorption of water. The shapes, widths, and positions of the spectral lines yield information on the aluminum environments, adsorption sites, and degree of structural disorder undergone upon water adsorption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00770899
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  • 2
    Electronic Resource
    Electronic Resource
    Laser velocimetry measurements in a laboratory vaned diffuser (1990)
    Springer
    Experiments in fluids 9 (1990), S. 33-42 
    Details
    ISSN: 1432-1114
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Laser velocimetry measurements were made within a laboratory radial vaned diffuser with three different blade configurations. Measurements were made through passages with four, six and eight blades installed at off design conditions. Also, in the eight blade diffuser measurements were made between the blade passage exit and diffuser exit so that the complete secondary flow could be defined. The flow was found to separate from the blades and form large separation zones. The separation zones consisted primarily of two vortices rotating in opposite directions. At the passage exit the separation region encompassed 23% of the circumferential area for the four blade diffuser, 45% for the six blade and 40% in the eight blade diffuser. Separation occurred at 23%, 27% and 50% from the leading edge of the blades for the 4, 6 and 8 bladed diffusers, indicating that more blades better controlled the separation. Turbulence intensities ranged from approximately 5% to 15% in the primary flow and reached a few hundred percent in the secondary flow within the separation regions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00575333
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  • 3
    Electronic Resource
    Electronic Resource
    Antarctic marine life under the McMurdo Ice Shelf at White Island: A link between nutrient influx and seal population (1984)
    Springer
    Polar biology 2 (1984), S. 229-231 
    Details
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Throughout 1981, the first routine collections of a variety of fish were made under the McMurdo Ice Shelf near White Island, Antarctica. Estimates of their local biomass were calculated using food consumption patterns of resident seals. Since no significant primary production occurs at White Island, the resident fauna must be maintained by a large nutrient influx from the Ross Sea.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00263629
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  • 4
    Electronic Resource
    Electronic Resource
    Listing service (1980)
    Springer
    International journal of game theory 9 (1980), S. 117-123 
    Details
    ISSN: 1432-1270
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01769770
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  • 5
    Electronic Resource
    Electronic Resource
    On a multiplicative functional transformation arising in nonlinear filtering theory (1980)
    Springer
    Probability theory and related fields 54 (1980), S. 125-139 
    Details
    ISSN: 1432-2064
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary This paper concerns the nonlinear filtering problem of calculating “estimates” E[f(xt)¦y s, s≦t] where {x t} is a Markov process with infinitesimal generator A and {y t} is an observation process given by dy t=h(xt)dt +dwtwhere {w t} is a Brownian motion. If h(xt) is a semimartingale then an unnormalized version of this estimate can be expressed in terms of a semigroup T s,t y obtained by a certain y-dependent multiplicative functional transformation of the signal process {x t}. The objective of this paper is to investigate this transformation and in particular to show that under very general conditions its extended generator is A t y f=ey(t)h(A− 1/2h2)(e−y(t)h f).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00531444
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  • 6
    Electronic Resource
    Electronic Resource
    Genetic control of allozymes of shikimate dehydrogenase in ponderosa pine (1981)
    Springer
    Biochemical genetics 19 (1981), S. 641-646 
    Details
    ISSN: 1573-4927
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00483997
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  • 7
    Electronic Resource
    Electronic Resource
    Decision sequence for functional wetlands restoration (1994)
    Springer
    Water, air & soil pollution 77 (1994), S. 497-511 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract As wetland functions are being more clearly evaluated, demand is increasing for the ability to mitigate for specific wetland functions that have been degraded. When wetland restoration project goals specify functions, success of the project depends heavily on proper guidance for project siting, design, implementation, and monitoring. A decision sequence is presented for wetland restoration projects to help achieve functional replacement. This methodology incorporates site selection and design features for specified wetland functions into three phases of a project planning decision sequence. The first phase, site selection, situates a wetland where there is the potential to perform a function. Phases two and three, the incorporation of functional design features into design criteria and project plan development, focus on the optimization of the functional capacity of a site. An example is given of how a wetland restoration project planning team can consider enhancing vegetation diversity during the project plan development phase to achieve a goal of improved wildlife habitat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00478435
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  • 8
    Electronic Resource
    Electronic Resource
    Wetlands of the Interior Southeastern United States: Conference summary statement (1994)
    Springer
    Water, air & soil pollution 77 (1994), S. 199-205 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The wetland resources in the southern United States are diverse, being characterized by bottomland hardwoods, forested riparian zones, swamps, marshes, bogs, and fens. Recognizing the importance of the wetland resource, the need to develop information on the diversity of wetland types, and the evolving public debate regarding the protection and management of wetlands, this conference was organized to (1) provide a forum for the presentation and discussion of current research and information on wetland ecosystems, (2) to develop a basis on which to improve wetland conservation and management, (3) to provide a forum to encourage collaboration in the study and management of wetland resources, and (4) to suggest actions that would benefit wetland conservation and management. Twenty-three invited technical papers and three working group sessions addressed topics encompassing the full spectrum of wetland issues, including resource status, ecological and hydrological processes, management and conservation, and restoration and creation. Major findings discussed at the conference included the need to distinguish between functions and values, the development of a hydrogeomorphic classification system for assessing wetland functions, and assessment methodologies for planning and implementing effective wetland restoration projects. Papers summarizing the current understanding of wetland soil and vegetation processes in the region highlighted the important role wetlands play in landscape function, yet the understanding of those processes is incomplete. Insights developed from the study of wetlands in the interior southeastern United States have widespread applicability to other regions because of similarities in hydrogeomorphic setting and vegetation communities, and the management and conservation issues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00478418
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  • 9
    Electronic Resource
    Electronic Resource
    Microhardness properties of human gallstones and synthetic stones (1992)
    Springer
    Journal of materials science 11 (1992), S. 554-557 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: 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/BF00728606
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  • 10
    Electronic Resource
    Electronic Resource
    The superconducting properties of YBa2(Cu1−xMx)3O7 for M=Zn and Ni (1991)
    Springer
    Hyperfine interactions 63 (1991), S. 81-86 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Transverse and zero-field μSR measurements were made on YBa2(Cu1−xNix)3O7−y withx=0.1 and 0.2, and YBa2(Cu1−x Zn x )3O7−y withx=0.03, 0.06, 0.1, and 0.16, wherey≈0.1. Since doping may lead to magnetic ordering this was searched for with both zero and transverse field μSR, but no evidence was found over the temperature range studied: 10–100 K. However, depolarization rates as functions of temperature were obtained, and the low temperature values of these are σ=3.2 μs−1.1.6μs−1, and 1 μs−1 forx=0.01, and 0.2 Ni, respectively, and σ=0.8 μs−1, 0.75 μs−1, 0.65 μs−1, and 0.4 μs−1 forx=0.03, 0.06, 0.1, and 0.16 Zn, respectively. Estimates for the effect of decreasing electron concentration for Zn are made, but these alone do not account for the drop in σ. Estimates for the effect of scattering on λ and hence σ are made. The reduction in σ for Ni dopant is in surprisingly good agreement with these estimates. For Zn the order of magnitude is correct, but the relative lack of further change in σ after the effect of the first 0.03 addition seems to imply a saturation of the effect of scattering.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02395988
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