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  • 1990-1994  (4)
  • Engineering  (2)
  • Alexander's disease  (1)
  • Anther  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Computed tomography in Alexander's disease (1991)
    Springer
    Neuroradiology 33 (1991), S. 438-440 
    Details
    ISSN: 1432-1920
    Keywords: Leukodystrophy ; Alexander's disease ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of biopsy proven Alexander's disease is described with extensive low density lesions in both frontal lobes, which in our experience, and on survey of the literature have not been described previously.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00598620
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Chemical agents that inhibit pollen development: tools for research (1991)
    Springer
    Sexual plant reproduction 4 (1991), S. 235-243 
    Details
    ISSN: 1432-2145
    Keywords: Male sterility ; Pollen ; Anther ; Gameto cides ; Chemical hybridizing agents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Several unrelated compounds are known to selectively inhibit the development of the male gametophyte. When applied at suitable dosages to plants at the appropriate stages of anther development, these substances block the formation of fertile pollen. The affected stage of pollen development is characteristic of the specific chemical structure of the compound, ranging from effects on microspore meiosis to the formation of pollen defective in the ability to germinate or fertilize. The range of effects mediated by these substances, and by known male-sterile mutants, indicates that microspore development has several critical phases that are particularly sensitive to fatal inhibition. We propose that chemical inhibitors of pollen development deserve attention as tools for elucidating the regulation of pollen development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00200541
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Finite element analysis of heat transfer and flow problems using adaptive remeshing including application to solidification problems (1991)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 32 (1991), S. 767-781 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: An error estimation technique for adaptive finite element analysis of heat conduction problems is described. The performance of this technique is demonstrated using a two-dimensional steady-state linear benchmark problem with a known analytical solution. A transient non-linear heat conduction problem involving solidification is then solved as a typical practical application. Some preliminary investigations for error indicators in flow problems are presented.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620320408
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    A finite element model for the simulations of mould filling in metal casting and the associated heat transfer (1992)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 35 (1992), S. 787-806 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The flow associated with the pouring of molten metal into moulds has been modelled based upon certain simplfying assumptions. A finite element based Navier-Stokes equation solver has been used to analyse the flow. The velocities obtained from the Navier-Stokes equation solver are used to advect a pseudo-concentration function for modelling the free fluid front. A simple problem with a known analytical solution is solved first to test the model. Subsequently, several more examples of varied geometrical configuration are modelled to demonstrate the applicability of the proposed model. The Taylor-Galerkin method has been used to model the heat transfer during filling due to its advection dominated nature.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620350410
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    Paper (German National Licenses)
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