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
  • 1
    Electronic Resource
    Electronic Resource
    Electromagnetic scattering and absorption by finite wires (1995)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 78 (1995), S. 656-667 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The scattering from a thin conducting wire is computed by representing the induced current as a sum of driven and resonant terms, the latter with complex propagation constant mk perturbed from its free space value k. Using Galerkin's method, the central problem of determining m reduces to a minimization problem. For the limiting cases of highly conducting or highly absorbing wires simplifications are found. For short wires the Rayleigh cross sections are obtained; for longer wires with high absorption, accurate cross section formulas are constructed based on the unperturbed infinite wire currents. For general wire lengths and conductivities the method is computationally very simple and results are in excellent agreement with independent computations of both current and far field quantities, as well as experimental measurements. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.360324
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Unusual antimicrobial compounds fromAeollanthus buchnerianus (1996)
    Springer
    Cellular and molecular life sciences 52 (1996), S. 175-179 
    Details
    ISSN: 1420-9071
    Keywords: Aeollanthus buchnerianus ; Lamiaceae ; dodecanoic acids ; abietane diterpenes ; antifungal and antibacterial bioactivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Using bioassay guided isolation, three novel 12 carbon polyoxygenated fatty acids and a novel abietane diterpene have been isolated from the the chloroform extract of aerial parts ofAeollanthus buchnerianus (Lamiaceae). Rigorous spectroscopic methods were used for compound identification. (Z,Z)-8ζ-acetoxy-5ζ-hydroxydodeca-2,6-dienoic acid and (Z,Z)-5ζ,8ζ-dihydroxydodeca-2,6-dienoic acid inhibited the spore germination ofCladosporium cucumerinum (both with Minimum Inhibitory Dose (MID) values of 1 μg) andAspergillus niger (MID 5 and 25 μg respectively). Further, they also reduced the hyphal growth ofPythium ultimum. (Z)-5ζ-hydroxy-6ζ,7ζ,8ζ-triacetoxydodeca-2-dienoic acid exhibited short term inhibition of the growth ofCladosporium cucumerinum. The novel abietane diterpenoid, (rel)-14α-acetoxyabiet-7-en-18-oic acid inhibited the growth of the gram positive bacteriaBacillus subtilis, staphylococcus aureus andStreptomyces scabies (MIC values 80, 20 and 20 μg ml−1 respectively).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01923365
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Predicted climate change, sea-level rise and wetland management in the Australian wet-dry tropics (1999)
    Springer
    Wetlands ecology and management 7 (1999), S. 63-81 
    Details
    ISSN: 1572-9834
    Keywords: Australia ; climate changes ; management ; sea level ; wetlands
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The vulnerability of coastal areas in the Alligator Rivers Region (northern Australia) to predicted climate change and potential sea level rise was assessed as part of a national study. The coastal area is composed of a number of estuarine and freshwater habitats that are intricately interlinked and can not be effectively managed in isolation of each other. The outcomes of the assessment focused on the floodplain environments of the region, but are also applicable to the broader wetland environments that occur across the northern Australian wet-dry tropics. The management regime in the region is based on traditional Aboriginal ownership of much of the land, which is leased to the federal government as a national park. Scientific research has been intensive; however, important questions have been raised about the collation and effective use of this information. The vulnerability assessment framework required effective use of this information and cooperation with the management authority to identify change scenarios and management and research responses. A climate change scenario was established as the basis for predicting biophysical change in the coastal and wetland environments. The predictions suggest that large-scale change will occur and many of the existing values derived from these areas (i.e., usage by traditional Aboriginal occupants, and nature conservation) could be degraded or even lost. Recommended management responses include the initiation of specific monitoring, empowerment of local bodies to take active management steps, and to increase awareness of the likely consequences of change. Further data coordination and review are needed to ascertain the validity of the predictions and the concomitant management responses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008477110382
    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...