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  • Casuarina cunninghamiana  (1)
  • ILU factorization  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Gas diffusion pathway in nodules ofCasuarina cunninghamiana (1989)
    Springer
    Plant and soil 118 (1989), S. 119-123 
    Details
    ISSN: 1573-5036
    Keywords: actinorhizal nodules ; Casuarina cunninghamiana ; Frankia ; nitrogen fixation ; oxygen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The gas diffusion pathway in nodules was traced by vacuum infiltration with India ink or aniline blue and by electron microscopy. India ink infiltration was observed in the outermost and the innermost cortex in sliced nodules, but not in intact nodules. With aniline blue infiltration, it was observed that intercellular air spaces in the outermost and the innermost cortex were connected to those in nodule roots. No air spaces were in contact with walls of infected cells, although intercellular air spaces existed in some groups of uninfected cells within the infected zone. Infiltration with either India ink or aniline blue could not be observed in the infected zone in essentially all cases. Thus it is suggested that the discontinuity of the intercellular air spaces represents a major resistance to O2 diffusion in nodules ofCasuarina cunninghamiana.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02232796
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  • 2
    Electronic Resource
    Electronic Resource
    An ILU smoother for the incompressible Navier-Stokes equations in general co-ordinates (1995)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 20 (1995), S. 59-74 
    Details
    ISSN: 0271-2091
    Keywords: Navier-Stokes equations ; Multigrid method ; Smoothing method ; ILU factorization ; General co-ordinates ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The solution of the incompressible Navier-Stokes equations in general two- and three-dimensional domains using a multigrid method is considered. Because a great variety of boundary-fitted grids may occur, robustness is at a premium. Therefore a new ILU smoother called CILU (collective ILU) is described, based on r-transformations. In CILU the matrix that is factorized is block-structured, with blocks corresponding to the set of physical variables. A multigrid algorithm using CILU as smoother is investigated. The performance of the algorithm in two and three dimensions is assessed by numerical experments. The results show that CILU is a good smoother for the incompressible Navier-Stokes equations discretized on general non-orthogonal curvilinear grids.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fld.1650200104
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