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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 40 (1975), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Computers and Electronics in Agriculture 11 (1994), S. 195-214 
    ISSN: 0168-1699
    Keywords: Crop simulation ; Expert systems ; Hybrid ; User modelling ; Yield model
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Computer Science , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science, Ltd
    Aquaculture research 34 (2003), S. 0 
    ISSN: 1365-2109
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Weaning success of pond-cultured pikeperch and wild-caught perch (mean length 51 and 48 mm respectively) was evaluated using different weaning techniques and different formulated feeds. Juveniles that were fed formulated feed grew as well as or better than juveniles that were weaned successively using zooplankton or yolk. Four different formulated feeds (agglomerated marine larvae feed, marine larvae feed, trout feed and a semi-moist feed) were evaluated regarding specific growth rate (SGR), condition factor and a subjective stomach fullness estimate. The agglomerated marine larvae feed gave significantly better weaning performance than the other feeds regarding all parameters (SGR = 7.3% day−1 and 3.4% day−1 for pikeperch and perch respectively).
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A basic requirement of all photosynthetic organisms is a balance between overall energy supply through temperature-independent photochemical reactions and energy consumption through the temperature-dependent biochemical reactions of photosynthetic electron transport and contiguous metabolic pathways. Since the turnover of photosystem II (PSII) reaction centers is a limiting step in the conversion of light energy into ATP and NADPH, any energy imbalance may be sensed through modulation of the redox state of PSII. This can be estimated in vivo by chlorophyll a fluorescence as changes in the redox state of PSII, or photosystem II excitation pressure, which reflects changes in the redox poise of intersystem electron transport carriers. Through comparisons of photosynthetic adjustment, we show that growth at low temperature mimics growth at high light. We conclude that terrestrial plants, green algae and cyanobacteria do not respond to changes in growth temperature or growth irradiance per se, but rather, respond to changes in the redox state of intersystem electron transport as reflected by changes in PSII excitation pressure, We suggest that this chloroplastic redox sensing mechanism may be an important component for sensing abiotic stresses in general. Thus, in addition to its role in energy transduction, the chloroplast may also be considered a primary sensor of environmental change through a redox sensing/signalling mechanism that acts synergistically with other signal transduction pathways to elicit the appropriate molecular and physiological responses.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 24 (1956), S. 216-232 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Zusammenfassung Wir haben das in der Idee nicht neue Reduktionsverfahren auf den beliebig gestützten Durchlaufträger angewandt, allgemeine Formeln zur Aufstellung der Grundgleichungen hergeleitet und die Rechnung so weit schematisiert, daß sie auch von Hilfskräften oder auf Rechenautomaten durchgeführt werden kann. Der Vergleich mit der klassischen Eliminationsmethode zeigte, daß das Reduktionsverfahren dem Rechenaufwand nach fast immer, in der Weite seines Anwendungsbereiches aber grundsätzlich überlegen ist. Drei hinreichend erläuterte Beispiele geben einen Begriff von der Geschlossenheit einer in Matrizen durchgeführten größeren Zahlenrechnung.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 26 (1958), S. 61-80 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 26 (1958), S. 96-109 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Zusammenfassung Wir haben gesehen, wie sich auf Grund der Gleichungen II (3) oder irgendeines anderen linearen gewöhnlichen Differentialgleichungssystems und einiger zweckmäßig eingeführter Begriffe wie Reduktion, Feldgrenze, Koppelfeder, Strangschar usw. die große Mannigfaltigkeit ebener und räumlicher Rahmentragwerke theoretisch erfassen, aber auch zahlenmäßig berechnen läßt. Insgesamt acht vorgeführte Beispiele und ein allgemeines Programm für digitale Rechenautomaten zeigen den praktischen Wert des Verfahrens auf; seine Überlegenheit über die bis heute gebräuchlichen Eliminationsmethoden beweist ein objektiver Vergleich.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 29 (1960), S. 436-444 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 47 (1978), S. 57-66 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Summary The matrix differential equation Mü + Dü + Ce = o of an N-degree-of-freedom linear dynamic system with viscous damping may have the special property D = αM + ɛC. For this case it is shown that the complex eigenvalues are situated on a circle in the complex λ-plane, determined by the parameters α and ɛ. For the real roots a simple presentation in the λ-plane is given. An extension to continuous systems is possible.
    Notes: Übersicht Behandelt wird die lincare Matrizendifferentialgleichung zweiter Ordnung Mü + Dü + Ce = o mit der Besonderheit D = αM + ɛC als sogenannter Bequemlichkeitshypothese. Es wird gezeigt, daß sämtliche Eigenwerte, sofern sie komplex ausfallen, auf einem Kreis in der komplexen Zahlenebene liegen, der durch die beiden Parameter α und ɛ festgelegt ist. Auch für die rcellen Wurzeln wird cin einfaches Verteilungsgesetz angegeben. Die Verhältnisse lassen sich lcicht übertragen auf lineare gedämpfte Schwingungssysteme mit belicbig vielen Ercihcitsgradcn.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 24 (1956), S. 85-91 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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