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
  • photochemistry  (2)
  • (E)-β-farnesene  (1)
  • Engineering General  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Response of The Lacewing Chrysopa cognata to Pheromones of its Aphid Prey (1998)
    Springer
    Journal of chemical ecology 24 (1998), S. 631-643 
    Details
    ISSN: 1573-1561
    Keywords: Kairomone ; Chrysopa cognata Wesmael ; aphid pheromones ; cyclopentanoids ; nepetalactone ; nepetalactol ; (E)-β-farnesene ; Y-tube ; electroantennogram ; field trapping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The lacewing Chrysopa cognata, one of the principal predators of aphids in Korea, was tested for responses to the aphid sex pheromone components (4aS,7S,7aR)-nepetalactone and (1R,4aS,7S,7aR)-nepetalactol and the aphid alarm pheromone (E)-β-farnesene. Electroantennogram responses were obtained to the sex pheromone components but not to (E)-β-farnesene. The sex pheromone components were attractive in a Y-tube olfactometer assay and in field trials with water traps, but no attraction was observed to (E)-β-farnesene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022386001722
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    New fluorescent labels for time-resolved detection of biomolecules (1993)
    Springer
    Journal of fluorescence 3 (1993), S. 131-139 
    Details
    ISSN: 1573-4994
    Keywords: Fluorescence ; multiplex dyes ; photochemistry ; time-resolved spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract New dyes with characteristic fluorescence lifetimes have been developed for bioanalytical applications. Based upon the concept of “multiplex dyes,” we have designed rhodamine dyes with nearly identical absorption and emission spectral characteristics but different fluorescence lifetimes. Extending this principle to applications with laser diodes, new rhodamines with functional groups for covalent coupling of analytes have been developed. The new labels exhibit absortion and fluorescence beyond 600 nm and have a high quantum efficiency, even in aqueous buffer systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00862730
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    New fluorescent dyes in the red region for biodiagnostics (1995)
    Springer
    Journal of fluorescence 5 (1995), S. 247-261 
    Details
    ISSN: 1573-4994
    Keywords: Fluorescence ; photochemistry ; rhodamine dyes ; time-resolved spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The increased sensitivity together with the advent of low-cost optical sources and detectors in the visible-near IR region has led us to current efforts to develop new efficient fluorescent labels for biodiagnostics with absorption and emission beyond 600 nm. In view of the general fluorescence decrease with increasing emission wavelength, we investigated the possibility to shift the absorption of rhodamine dyes toward the region 620–670 nm. The hydrophobic nature of all known long-wavelength dyes results in the tendency to form intra- and intermolecular aggregates in hydrophilic solvents, especially in aqueous environment. Due to the aggregation with biological materials, fluorescence quenching of the dyes is often observed. New strategies for prevention of these processes are considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00723896
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Analysis of cylindrical shells under patch loading (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Communications in Applied Numerical Methods 2 (1986), S. 571-585 
    Details
    ISSN: 0748-8025
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The object of this study is to predict the peak values of the stress resultants and couples in a relatively thick cylindrical shell under a concentrated local loading in order to guide the design of a large-scale reinforced concrete test specimen. Four finite element programs, SHORE-III, two versions of RONALD, and ANSYS, were employed here. The SHORE-III and RONALD analyses considered a complete cantilevered cylinder, while the ANSYS model treated a cylindrical panel free along the curved edge and constrained in various ways along the longitudinal edge. Comprehensive comparative results are provided for the linear elastic loading case, which indicate the magnitude and attenuation of concentrated loading effects on cylindrical shells and panels.
    Additional Material: 22 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cnm.1630020605
    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...