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  • Blackwell Publishing Ltd  (2)
  • American Association for the Advancement of Science (AAAS)  (1)
  • American Association of Petroleum Geologists (AAPG)
  • Copernicus
  • American Meteorological Society
  • 2000-2004
  • 1990-1994  (3)
  • 1975-1979
  • 1994  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Experiences of Digested Sludge Thickening by Aercon (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 8 (1994), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Increasing restrictions on sewage sludge disposal routes and the tightening of treatment requirements have led to an escalation of sludge-disposal costs which are out of proportion to other sewage-treatment costs: consequently reducing sludge volume is becoming increasingly cost-effective. Consolidation of anaerobically digested sludge has traditionally been difficult and takes many weeks in secondary digesters or deep storage tanks. Pre-aeration of the sludge using the Aercon process can enable consolidation to take place in days instead of weeks.This paper reports the results of a pilot-scale plant designed to investigate further the mechanism by which aeration speeds up consolidation. It was concluded that the rate of consolidation depended on aeration intensity and cooling of the sludge. Inhibition of anaerobiosis was more important than gas stripping in enhancing consolidation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.1994.tb01155.x
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The angular dependence of the median destructive field of magnetite particles (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 118 (1994), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The angular variation of the median destructive field (MDF) of magnetite particles has been determined by subjecting anisotropic samples carrying an isothermal remanent magnetization (IRM) to static AF demagnetization, with the AF at an angle to the IRM. The alignment was produced by dispersing the magnetite particles in resin in the presence of a magnetic field thus making the sample anisotropic. After tumble demagnetization, an IRM in 80 mT was given to each sample along the alignment axis. 11 different particle sizes were used covering the range 0.7–82 μm. The results for all the samples are remarkably similar in that the MDF is smallest when the AF is applied parallel to the alignment axis and greatest when the AF is perpendicular to the axis. The results are also very similar to those found experimentally for single-domain ‘tape’ particles and indicate that the reversal mechanism even in the smallest particles is not by coherent reversal as in the Stoner-Wohlfarth model. The angular variation of the MDF for all the particle sizes is described quite well by a function derived by Aharoni for single-domain particles. The MDF at θ= 0 is found to be inversely proportional to the square root of the particle size.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1994.tb04682.x
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  • 3
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    Ca(2+)-induced Ca2+ release in response to flash photolysis (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-02-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lamb, G D -- Fryer, M W -- Stephenson, D G -- New York, N.Y. -- Science. 1994 Feb 18;263(5149):986-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8310298" target="_blank"〉PubMed〈/a〉
    Keywords: Acetates/chemistry/metabolism ; Adaptation, Physiological ; Animals ; Calcium/*metabolism ; Calcium Channels/*metabolism ; Dogs ; Electrodes ; Ethylenediamines/chemistry/metabolism ; Myocardium/*metabolism ; Photolysis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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