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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of chemical ecology 16 (1990), S. 2713-2722 
    ISSN: 1573-1561
    Keywords: Monoterpenes ; Abies grandis ; Picea pungens ; steam distillation ; extraction ; secondary chemicals ; grand fir ; blue spruce ; coefficient of variation ; MANOVA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Five extraction techniques were used to obtain quantitative measurements of monoterpenes from blue spruce and grand fir needles. Multivariate analysis of variance indicated that there was a significant difference in the amount of each monoterpene extracted by using different techniques. For both species, an 8-hr steam distillation of 10 g of material yielded the greatest amount of each monoterpene. This technique was also the most reproducible in that the coefficients of variation were lowest. A rapid steam distillation was relatively effective for grand fir, but not for blue spruce. A CO2 extraction was unreliable for both species.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of low temperature physics 93 (1993), S. 907-919 
    ISSN: 1573-7357
    Keywords: 67.40.-w ; 67.40.Db ; 05.30.Jp
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We briefly review some general aspects of Bose condensation and off-diagonal long range order in infinite bulk systems and then discuss to what extent these features might be manifested in finite systems with free surfaces such as droplets of liquid 4 He at low temperatures. We focus on the structure of the one-body density matrix and the macroscopic wave function in the surface region, and note the possibility of a surface condensate.
    Type of Medium: Electronic Resource
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