ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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
  • Springer  (11)
  • Berlin ; Heidelberg : Springer  (2)
  • Geological Society of America (GSA)
  • 1985-1989  (13)
Collection
Keywords
Publisher
Language
Years
Year
  • 1
  • 2
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 21 (1986), S. 3801-3809 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Injection-moulded discs of poly(ether sulphone) impacted at 5 m sec−1 in a standard flexed-plate configuration fail by a ductile penetration process and the peak force is proportional to the specimen thickness. The peak force is reduced, and the specimen is often embrittled, if there is a machined stress concentrator at the point of impact. The simplest stress concentrator, a hole bored through the specimen, reduces the peak force by about one-third and reduces the overall ductility, even to the point of brittleness in some cases, but it does not constitute a severe notch. The results can all be rationalized in terms of the ratio of peak force to thickness.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 22 (1987), S. 1724-1732 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Measurements on five glass-fibre reinforced compounds have shown that at fibre weight fractions of 0.3 and 0.5 increased mean fibre length confers greater resistance to impact as measured by a conventional flexed-plate method. The results were consistent with notional fracture surface energies that were deduced from the lengths of crack generated by various low energy blows and from the lengths recorded by flash photography at various stages of impact events. The velocity of impact was not influential over the range investigated (1 to 5 m sec−1 ). The investigation was not straightforward because when a test specimen of this class of material is impacted at room temperature the observed response is either heavily contaminated with extraneous vibrations due to the absence of an electrical filter or of questionable purity due to the presence of a filter. In that respect, and others, the paper is linked to an earlier one (J. Mater. Sci. 21 (1986) 3153).
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 23 (1988), S. 1985-1994 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Tests on various sample shapes moulded from poly(ether sulphone) show that the response to an excess energy impact may be brittle failure, ductile failure or mixed mode failure, depending on the geometrical features and the associated flow geometries at or near the point of impact. Flow irregularities and local anisotropies caused by the overall flow geometry can be as detrimental to the toughness as conventional stress concentrators are. The results, which are unlikely to be unique to poly(ether sulphone), imply that the procedures currently followed for the evaluation of impact resistance are generally insufficient for their purpose since materials are likely to differ in their susceptibility to embrittlement.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 21 (1986), S. 3801-3809 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Injection-moulded discs of poly(ether sulphone) impacted at 5 m sec−1 in a standard flexed-plate configuration fail by a ductile penetration process and the peak force is proportional to the specimen thickness. The peak force is reduced, and the specimen is often embrittled, if there is a machined stress concentrator at the point of impact. The simplest stress concentrator, a hole bored through the specimen, reduces the peak force by about one-third and reduces the overall ductility, even to the point of brittleness in some cases, but it does not constitute a severe notch. The results can all be rationalized in terms of the ratio of peak force to thickness.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 21 (1986), S. 3153-3161 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Tests and experiments carried out in three laboratories on five glass-fibre reinforced nylon compounds have shown that relatively small differences in the electrical filtering lead to important differences in the observed response curves and to the interpretations placed on them. As a consequence, at a superficial level interlaboratory agreement is not good, but when the curves are properly interpreted in the light of supplementary information derived by techniques such as flash photography during the fracture process and low energy impact the agreement is much closer. The overall picture that emerges is that the method is reliable and informative, far more so than the uninstrumented method which now stands virtually discredited by the new evidence.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    ISSN: 1871-4528
    Keywords: Reference clones
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Zusammenfassung Elf Kartoffelsorten oder Klone mit unterschiedlichem Resistenzgrad gegen Kartoffel-Zystennematoden, vonSolanum vernei oderS. tuberosum ssp.andigena CPC 2802 (Tab. 1) abstammend, wurden in acht Topfversuchen und in einem Feldversuch untersucht. Sechs Tests beinhaltetenGlobodera pallida Pa2/3-, einerG. pallida Pa1- und zweiG. rostochiensis Ro1 — Populationen. Die neun Tests wurden an sechs verschiedenen Zentren, von denen jedes seine eigenen Nematoden- Populationen und seine eigenen Techniken verwendete, durchgeführt (Tab. 2). Die Ergebnisse zeigen, dass in Tests mit den gleichen Nematoden-Species eine strenge Korrelation zwischen Experimenten und der Rangfolge der Resistenz der Klone vorhanden war (Tab. 4). Wenn nur Klone mit quantitativer Resistenz betrachtet werden, ergaben alle Tests gute Übereinstimmung. Die Tests zeigten Unterschiede in den allgemeinen Vermehrungsraten zwischen den Tests (Tab. 3) und zeigten, dass der Ausdruck der Ergebnisse bei den partiell resistenten Klonen im Verhältnis zu den Vermehrungsraten bei nicht-resistenten Kontrollen diese Unterschiede nicht eliminierten (Tab. 5). Die statistische Analyse der Daten ergab eine geringe, aber statistisch signifikante Klon/Test-Wechselwirkung, aber diese ergab sich prinzipiell eher als Ergebnis genotypischer als umweltbedingter Effekte. Die Ergebnisse dieser Tests stützen die Vermutung, dass Klone mit bekannter partieller Resistenz in Tests zur Ermittlung von Resistenz gegen Zystennematoden eingeschlossen werden sollten, sowohl zur Ermöglichung einer Vergleichbarkeit als auch zur Definierung von Kategorien für die Resistenz.
    Abstract: Résumé Onze variétés ou clônes de résistance diverse aux nématodes à kystes dérivés deSolanum vernei ouS. tuberosum ssp.andigena CPC 2802 (tableau 1) sont testés dans huit essais en pots et un essai de plein champ. Six tests comportentGlobodera pallida Pa2/3, un testG. pallida Pa1 et deux tests de populations deG. rostochiensis Ro1. Les neuf tests sont conduits dans six centres différents, chacun ayant sa propre populations de nématodes et ses propres normes techniques (tableau 2). Les résultats indiquent que dans les tests ayant les mêmes espèces de nématodes, la corrélation entre les expérimentations est très bonne en ce qui concerne le classement de résistance des clônes (tableau 4). Si l'on ne prend en compte que la résistance quantitative des clônes, les résultats sont concordants pour tous les tests. Les taux de multiplication sont différents entre les tests (tableau 3) et les résultats obtenus sur clônes de résistance partielle exprimés par rapport aux taux de multiplication des témoins non résistants ne modifient en rien ces différences (tableau 5). Une analyse statistique des résultats montre une faible mais néanmoins intération clone × test due davantage à des effets génotypiques que d'environnement. Les résultats de ces essais appuient l'idée que des clônes de résistance partielle de référence devraient être inclus dans des tests d'évaluation de la résistance aux nématodes à kystes de la pomme de terre pour faciliter les comparaisons et définir des catégories de résistance.
    Notes: Summary Eleven potato cultivars or clones representing a range of resistances to potato cyst nematodes derived fromSolanum vernei orSolanum tuberosum ssp.andigena CPC 2802 were assessed in eight pot tests and one field trial. Six involvedGlobodera pallida Pa2/3, oneG. pallida Pa1, and twoG. rostochiensis Ro1. The nine tests were at six different centres each using their own nematode populations and standard techniques. The results showed that with the same nematode species there was a strong correlation between experiments in the ranking of the resistance of the clones. If only those clones with quantitative resistance were considered there was good agreement over all tests. Analysis of the data indicated a small clone by test interaction, but this arose mostly as a result of genotypic rather than environmental effects. The results support a proposal that partially resistant reference clones should be included in tests to assess resistance to potato cyst nematodes.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    ISSN: 1573-7462
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 1988-06-01
    Print ISSN: 0022-2461
    Electronic ISSN: 1573-4803
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...