Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 2000-2004  (1)
  • 1965-1969  (2)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Relative Ionization Efficiencies of Hydrocarbon Molecules as a Function of Bombarding Electron Energy (1965)
    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 996-997 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Recent results of Schram et al.2 can be used to show that the relative ionization cross-sections (RIGS) of saturated and unsaturated hydrocarbons are constant over the electron energy-range of 12,000 eV-600 eV and are approximately (within ±15 per cent from methane to benzene) proportional ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/208996a0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    A phenomenological mathematical model of hysteresis (2001)
    Bradford : Emerald
    Compel 20 (2001), S. 1002-1015 
    Details
    ISSN: 0332-1649
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Electrical Engineering, Measurement and Control Technology , Mathematics
    Notes: This paper starts with the description of a purely mathematical model of the saturation curve and the hysteresis loop based on the fundamental similarities between the Langevin function the specified T(x) function and the sigmoid shape. The T(x) function which is composed of tangent hyperbolic and linear functions with its free parameters can describe the regular anhysteretic magnetisation curve. Developed from this function the model describes not only the regular hysteresis loop but also the biased and other minor loops like the ones produced by the interrupted and reversed magnetisation process and the open "loops" created by a piecewise monotonic magnetising field input of diminishing amplitude. The remanent magnetism as the function of the interrupted field co-ordinates is predicted by the model in this mathematical form for the first time. The model presented here is based on the principle that all processes follow the shape of the T(x) function describing the shape of the major hysteresis loop of the ferromagnetic specimen under investigation. The model is also applicable to hysteretic processes in other fields.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/EUM0000000005771
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Gaschromatographische Bestimmung von Methoxyacetaldehyd neben Formaldehyd, Acetaldehyd und GlykolmethylÄther (1966)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 218 (1966), S. 272-274 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Eine gaschromatographische Methode zur Bestimmung von Formaldehyd, Acetaldehyd, Methoxyacetaldehyd und GlykolmethylÄther nebeneinander wurde entwickelt. Die Methode leistet gute Dienste bei der Kontrolle der ersten Stufe der Synthese von d-Cycloserin. Das Studium des Einflusses der verschiedenen Parameter auf die Ausbeute und der bei der heterogenen Katalyse verlaufenden Nebenreaktionen wird ermöglicht.
    Notes: Summary A gas-chromatographic method has been worked out for the determination of formaldehyde, acetaldehyde, methoxy acetaldehyde and glycolmethyl ether in presence of each other. It can be advantageously used for controlling the first stage of the synthesis of d-cycloserine. It also permits an investigation of the influence of the different parameters on the yield and an examination of the side-reactions involved in the heterogenous catalysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00517425
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...