Library

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
  • 1985-1989  (2)
  • Information processing  (1)
  • Polymer and Materials Science  (1)
  • 1
    ISSN: 1615-6102
    Keywords: Chemotaxis ; Information processing ; Oscillation ; Physarum polycephalum ; Thermal image camera
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The spatial and temporal pattern of oscillating temperatures on the cell surface of a plasmodial strand ofPhysarum polycephalum was measured with a sensitive thermal image camera. The longitudinal tension of the strand was studied simultaneously. In the absence of chemical stimulation, the phases of the temperature oscillation observed at various portions of the strand were entrained with almost coincidental phase. The temperature and tension oscillation were synchronized, although the phase difference between them was occasionally changed. With local chemical stimulation, the phase of the temperature oscillation advanced in the portion to which the plasmodium would be induced to migrate. The phases between temperature and tension oscillations then became constant. The mechanism by which the plasmodium processes local information of chemical stimulus to global information for the migration is discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 11 (1988), S. 94-102 
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: The possibility of quantitative AES analysis using the whole EN(E) spectrum was examined for Au—Cu alloy samples. The EN(E) spectrum was measured under ϕ = 0° (normal) incidence of 10 keV electrons for the Au-44 at% Cu sample, and under ϕ = 0°, 30°, and 45° incidence of 10 keV primary electrons for the Au-20 at% Cu sample. Those spectra were compared with spectra which were obtained by linear combination of pure Au and Cu spectra measured under the same experimental conditions.Both measured and synthesized spectra coincided very well in the energy region lower than 1000 eV, except the region of slow secondary electrons. The results indicate that energy distribution of backscattered electrons of the Au—Cu alloy can be estimated well by linear combinations of pure sample spectra. They also indicate that, by comparison of the shape of the measured EN(E) spectrum with the synthesized one, the surface composition of the Au—Cu alloy sample can be estimated with reasonable accuracy (several % error).
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...