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  • 1
    Electronic Resource
    Electronic Resource
    Comparative Risk Analysis for Metropolitan Solid Waste Management Systems (1996)
    Springer
    Environmental management 20 (1996), S. 65-80 
    Details
    ISSN: 1432-1009
    Keywords: KEY WORDS: Solid waste management; Comparative risk analysis; Optimization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract. Conventional solid waste management planning usually focuses on economic optimization, in which the related environmental impacts or risks are rarely considered. The purpose of this paper is to illustrate the methodology of how optimization concepts and techniques can be applied to structure and solve risk management problems such that the impacts of air pollution, leachate, traffic congestion, and noise increments can be regulated in the long-term planning of metropolitan solid waste management systems. Management alternatives are sequentially evaluated by adding several environmental risk control constraints stepwise in an attempt to improve the management strategies and reduce the risk impacts in the long run. Statistics associated with those risk control mechanisms are presented as well. Siting, routing, and financial decision making in such solid waste management systems can also be achieved with respect to various resource limitations and disposal requirements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00006703
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of Mach number on turbulent separation behaviours induced by blunt fin (1998)
    Springer
    Experiments in fluids 25 (1998), S. 347-351 
    Details
    ISSN: 1432-1114
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract  An experimental study of the interaction between shock wave and turbulent boundary layer induced by blunt fin has been carried out at M ∞=7.8 using oil flow visualization and simultaneous measurements of fluctuating wall pressure and heat transfer. This paper presents the effects of Mach number on turbulent separation behaviours induced by blunt fin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003480050239
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Nα-quinaldyl-L-arginine·HCl, a new defensive alkaloid fromSubcoccinella-24-punctata (Coleoptera, Coccinellidae) (1996)
    Springer
    Cellular and molecular life sciences 52 (1996), S. 628-630 
    Details
    ISSN: 1420-9071
    Keywords: Coleoptera ; Coccinellidae ; Subcoccinella-24-punctata ; chemical defense ; quinoline alkaloid ; Nα-quinaldyl-L-arginine·HCl
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The isolation of Nα-quinaldyl-L-arginine·HCl (1) from the CoccinellidaeSubcoccinella-24-punctata is reported. The structure, first established on the basis of the analysis of the spectral properties of1, has been confirmed by synthesis. The alkaloid is of endogenous origin and markedly deterrent to ants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01969744
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Role of Isoflavonoids in Resistance of Subterranean Clover Trifoliates to the Redlegged Earth Mite Halotydeus destructor (1998)
    Springer
    Journal of chemical ecology 24 (1998), S. 2089-2100 
    Details
    ISSN: 1573-1561
    Keywords: Trifolium subterraneum ; trifoliates ; Halotydeus destructor ; free isoflavones ; bound isoflavones ; resistance ; deterrent activity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Mature leaves of variety SE014 of Trifolium subterraneum are resistant to the redlegged earth mite (Halotydeus destructor). Compounds with feeding deterrent activity present in the leaves were isolated and identified by using a membrane bioassay technique. The free isoflavones, formononetin, genistein, and biochanin A, their corresponding 7-O-glucosides, and biochanin A 7-O-glucoside-6″-O-malonate and genistein 7-O-glucoside-6″-O-malonate, were active. In addition, the biosynthetic precursors of formononetin and genistein, 2,5,7-trihydroxy-4′-methoxyisoflavanol and 2,5,7,4′-tetrahydroxyisoflavanol, also were deterrent to the redlegged mites. The relative activity of these compounds was determined and some structure-activity correlations are noted. The constitutive defense mechanism that contributes to the resistance of subclover trifoliates to the mite contrasts with the induced chemical mechanism previously found for subterranean clover cotyledons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1020789710706
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Levels of Isoflavonoids as Indicators of Resistance of Subterranean Clover Trifoliates to Redlegged Earth Mite Halotydeus destructor (1999)
    Springer
    Journal of chemical ecology 25 (1999), S. 795-803 
    Details
    ISSN: 1573-1561
    Keywords: Trifolium subterraneum ; trifoliate leaves ; Halotydeus destructor ; free isoflavones ; bound isoflavones ; plant resistance ; deterrent activity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The extracts, obtained with methanol from crushed trifoliates and from the surface layer of the trifoliates, contained isoflavones in both the free and bound forms as the major components, compounds known to exhibit feeding deterrence towards the redlegged earth mite. The levels of these compounds were quantified and showed considerable variation in extracts of one susceptible variety and four varieties with differing levels of resistance. The relative resistance of the five varieties established from field observations was compared with the amounts of isoflavone derivatives obtained in the two extracts. A better ranking of resistance was found with levels of isoflavones on the leaf surface than with the total amount of isoflavones in the trifoliates. These results suggest a simple method for determining the relative resistance of subterranean clover to the mite.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1020840616583
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    Paper (German National Licenses)
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