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  • 1995-1999  (2)
  • 1
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This paper presents the design of the internal gas-jet target, CRYJET, which is being constructed for investigations of, e.g., fast ion--atom collisions in the heavy-ion storage and cooler ring CRYRING at the Manne Siegbahn Laboratory, Stockholm University. The goal for the design work was to create an ultra-cold He target (〈 = 10 mK in the longitudinal direction and 0.5 mK transverse temperature) with a density of ∼ 1012 atoms/cm3. Care was taken in order to minimize the influence from the jet on the very low background pressure in the storage ring (∼ 10-11 mbar). The low temperature is essential for the resolution in the experiments. The high density will enable us to get sufficient luminosities for investigations of processes with cross sections down to the 10-27 cm2 range. The gas-jet target will be equipped with two recoil-ion-momentum spectrometers in order to extract detailed information about the collision dynamics.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 243 (1996), S. 77-85 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Phenolische Harze (Resole) basierend auf Phenol und Cardanol, einem natürlichen Alkylphenol aus dem Cashewnußschalenöl (Anacardium occidentale L.), wurden hergestellt, und deren thermische und chemische Beständigkeit sowie mechanische Eigenschaften wurden bestimmt. Die Ergebnisse zeigen, daß die Zugabe von bestimmten Mengen Cardanol (weniger als 15 Gew.-%) zu Phenol die chemische Beständigkeit sowie einige mechanische Eigenschaften, wie Zugfestigkeit, Elastizität und die Izod-Stoßfestigkeit von Phenol-Formaldehydharzen deutlich verbessert. Gleichzeitig bleibt die hohe thermische Stabilität der reinen Phenol-Formaldehydraze im relevanten Temperaturbereich erhalten.
    Notes: Phenolic resins (resols) based on phenol and cardanol, a natural alkyl phenol from cashew nut shell liquid (Anacardium occidentale L.), were synthesized, and their thermal and chemical resistances as well as their mechanical properties were determined. The results show that the addition of certain amounts of cardanol (less than 15 wt.-%) to phenol distinctly improves the chemical resistance and some mechanical properties such as tensile, flexural and Izod impact strengths of the resins. At the same time, the high thermal stability of pure phenol-formaldehyde resins still remains in the temperature range of high relevance.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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