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  • 1985-1989  (3)
  • 1980-1984  (2)
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Materialart
Erscheinungszeitraum
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  • 1
    Digitale Medien
    Digitale Medien
    A numerical model of fine sediment transport on the continental shelf (1982)
    Springer
    Environmental geology 4 (1982), S. 117-129 
    Details
    ISSN: 1432-0495
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie
    Notizen: Abstract A numerical model of fine-grained sediment dispersion in the New York Bight of the North American continental shelf is presented. Large amounts of waste material have been dumped in this region and the dispersal patterns of this material are of great interest to environmental managers. The model assumes that fine sediment resuspension is determined by surface wave activity and that transport is determined by tidal currents. Considering surface wave activity to be a random process reduces sediment motion to a random walk which is governed by a diffusion equation. The diffusion equation is solved numerically by an implicit time difference, finite element algorithm for a number of initial conditions. Initial conditions corresponding to ocean dumping sites show patterns of dispersal controlled by the geometry of the study region and the anisotropy of the tides. Material dumped at currently used dump sites reaches sensitive coastal areas before it leaves the continental shelf. Examination of the diffusion coefficients suggests an alternative dump site for fine-grained material. This dump site is relatively near sources of dumped material but produces minimal impact on coastal areas. This site should be considered as a possible alternative to expensive direct disposal at deep ocean sites.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02415765
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  • 2
    Digitale Medien
    Digitale Medien
    Problems faced by R&D managers in Canadian federal government laboratories (1988)
    Oxford, UK : Blackwell Publishing Ltd
    R & D management 18 (1988), S. 0 
    Details
    ISSN: 1467-9310
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Wirtschaftswissenschaften
    Notizen: The paper conducts a critical review of the problems faced by middle to first-line managers in managing R&D in Canadian government laboratories. The data come from the published literature, interviews with R&D managers, and information obtained from government employees undergoing training as R&D managers.The problems are numerous and serious. They arise from a multiplicity of causes related to underfunding and bureaucratic management practices that do not allow for the special nature of R&D. Hiring freezes, staff reductions, travel restrictions and reductions in training budgets are all consequences of underfunding, resulting in an aging workforce and technological obsolescence. Bureaucratic administration rules set by central agencies constrain the freedom of R&D managers to manage effectively, and limit low-level participation in policy-making and planning. The result is that too many management posts are filled by under-achieving scientists and engineers, with resultant consequences for originality and efficiency.The authors believe that the only cure is to undertake proper funding, recognise the special operational needs of R&D management, and select managers for managerial ability in addition to technical competence.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1467-9310.1988.tb00561.x
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  • 3
    facet.materialart.
    Unbekannt
    Spirituality, Justice, and Cultural Evangelization (1988)
    New Haven, Conn., etc. : Periodicals Archive Online (PAO)
    Religious Education. 83:1 (1988:Winter) 53 
    Details
    ISSN: 0034-4087
    Thema: Theologie und Religionswissenschaft
    Notizen: Theme: "Spirituality and Religious Education"
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:3226-1988-083-01-000017
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  • 4
    Digitale Medien
    Digitale Medien
    Limitations of physical theory (1984)
    [s.l.] : Nature Publishing Group
    Nature 308 (1984), S. 20-20 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] SIR - Your recent view on reducing biology to physics1 ignores a fundamental problem. If biology is in principle reducible to physics, then so is psychology. Physics is quantumso that the prediction of behaviour would be in the form of a probability distribution of states: which state is observed ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/308020a0
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  • 5
    Digitale Medien
    Digitale Medien
    The effects of morphological transitions on hydrogen bonding in polyurethanes: Preliminary results of simultaneous DSC-FTIR experiments (1986)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 24 (1986), S. 2487-2498 
    Details
    ISSN: 0887-6266
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Notizen: The influence of morphological transitions on the hydrogen-bonding behavior of polyurethanes is investigated by simultaneous measurements of Fourier-transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). The materials examined are a noncrystalline polyurethane hard segment, a crystallizable polyurethane hard segment, and a segmented polyurethane block copolymer containing crystallizable hard segments. Integrated absorbance data show that the hydrogen-bonding behavior is insensitive to crystalline transitions within the hard segment microdomains, but that it does reflect morphological transitions in the block copolymer that are associated with intersegmental mixing. In addition, the spectral data show conclusive evidence for reversal of the urethane reaction at high temperatures.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/polb.1986.090241107
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