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
  • 1995-1999  (2)
  • 1930-1934
  • 1925-1929
  • Al alloys  (1)
  • Chilocorus  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Calorimetric Control of Aluminium Casting Quality (1999)
    Springer
    Journal of thermal analysis and calorimetry 57 (1999), S. 391-400 
    Details
    ISSN: 1572-8943
    Keywords: Al alloys ; casting ; entrained droplet technique ; nucleation ; secondary phase selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Differential scanning calorimetry (DSC) combined with an entrained droplet technique [1] has been successfully used on a series of melt spun alloys with deliberate impurity additions to study the nucleation related aspects of secondary phase selection during solidification of dilute Al alloys. This paper illustrates how DSC is a sensitive tool for determining the effect impurities can have on the nucleation of secondary phases, and hence material properties of these alloys. Stepped cooling/isothermal holding profile DSC has also been used in preliminary investigations of the thermodynamic range of formation of the Al—Fe eutectic phases and their nucleation and growth solidification kinetics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010118700766
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The potential role of phoresy in the evolution of parasitism: radiolabelling (tritium) evidence from an astigmatid mite (1995)
    Springer
    Experimental and applied acarology 19 (1995), S. 677-694 
    Details
    ISSN: 1572-9702
    Keywords: Hemisarcoptes ; Chilocorus ; mites ; parasitism ; phoresy ; tritium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Using tritium as a radiolabel marker of interspecific fluid transfer, we present experimental evidence that the heteromorphic deutonymph of an astigmatid mite (Hemisarcoptes cooremani) acquires materials (at least water) directly from the haemolymph of its beetle host (Chilocorus cacti). This acquisition is above that obtained from atmospheric vapour. The material acquired from the host is necessary for the completion of the ontogeny of H. cooremani and is likely procured through the action of the caudal ventral suckers of the heteromorphic deutonymph (hypopus). On gross morphological criteria, this mite-beetle relationship was previously defined as phoretic (for dispersal). Scanning electron photomicrographs of the physical relationship between the hypopodes and the heetles shed light on the ‘parasitic’ nature of the hypopus of H. cooremani. Our findings are discussed in terms of the evolution of parasitism from a free-living astigmatid form. This transition into parasitism is facilitated by the heteromorphic hypopus and represents a classic ‘wolf-insheep's-clothing’ strategy. The heteromorph retains the characteristic phoretic morphology while exploiting the host in transit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00052079
    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...