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  • Polymer and Materials Science  (4)
  • Nuclear Reactions  (3)
  • 61.70  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Polarisation lineaire de rayonnements gamma emis dans la reaction 46Ti(p, pgamma)
    Amsterdam : Elsevier
    Nuclear Physics, Section A 166 (1971), S. 271-284 
    Details
    ISSN: 0375-9474
    Keywords: Nuclear Reactions
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9474(71)90430-1
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Analyse des reactions ^2^5Mg(p,p)^2^5Mg et ^2^4Mg(d,p)^2^5Mg a 5 et a 6 MeV
    Amsterdam : Elsevier
    Nuclear Physics 88 (1966), S. 654-674 
    Details
    ISSN: 0029-5582
    Keywords: Nuclear Reactions
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0029-5582(66)90422-6
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  • 3
    Electronic Resource
    Electronic Resource
    Fluctuations des sections efficaces des reactions ^2^5Mg(p, p)^2^5Mg et ^2^4Mg(d, p)^2^5Mg
    Amsterdam : Elsevier
    Nuclear Physics 88 (1966), S. 675-688 
    Details
    ISSN: 0029-5582
    Keywords: Nuclear Reactions
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0029-5582(66)90423-8
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Nitrogen-oxygen complexes in Czochralski-silicon (1988)
    Springer
    Applied physics 46 (1988), S. 73-76 
    Details
    ISSN: 1432-0630
    Keywords: 61.70 ; 78.30
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Infrared spectra of nitrogen doped Czochralski-grown silicon indicate absorption lines in addition to the well-known lines of local modes of oxygen, carbon and nitrogen centers. The most prominent lines of them can be shown to be correlated with certain oxygen and nitrogen concentrations. These lines are, therefore, thought to arise from N-O complexes and are discussed in the context of an O-induced disturbance of N2-pair vibrations. The results of preliminary investigations on the stability of such complexes are also reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00615911
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  • 5
    Electronic Resource
    Electronic Resource
    A copper- and boron-related defect in silicon (1990)
    Springer
    Applied physics 50 (1990), S. 241-247 
    Details
    ISSN: 1432-0630
    Keywords: 61.70 ; 78.30
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The resistivity of boron-doped silicon can be significantly increased by polishing such material with an appropriate amine- and copper-containing slurry. This effect is ascribed to a passivation of the boron acceptors by a defect produced or introduced by the polishing process. Three new, so far unknown localized vibrational modes at 691, 720, and 1038 cm−1 are observed in highly boron-doped silicon samples after such a polishing treatment. Two of these localized modes can be identified as due to a boron-containing defect. High concentrations of copper found in the samples after appropriate polishing indicate a participation — either directly or indirectly — of this metal in the passivation process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00324489
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  • 6
    Electronic Resource
    Electronic Resource
    Untersuchungen zum Hochdruckphasengleichgewicht in Mischungen aus Ethylen und (Ethylen-Vinylacetat)-Copolymeren. Teil II. Der TemperatureinflußTeil I: siehe [4] (1982)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 33 (1982), S. 468-471 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: In addition to the predominant dependence on vinylacetate content of the copolymers, temperature shows a significant influence on the high pressure phase equilibrium in the mixtures. That is demonstrated by experimental cloudpoint curves (pressure). In comparison with them coexistence data are calculated for 5 different samples of (ethylene-vinylacetate)-copolymers and the temperature dependence of all model parameters is investigated and correlated.
    Notes: Nach dem Vinylacetatgehalt der Copolymere übt die Temperatur einen wesentlichen Einfluß auf die Lage des Hochdruckphasengleichgewichtes aus, der durch Trübungsdruckmessungen ermittelt werden kann. In Übereinstimmung damit erfolgen Berechnungen zu Koexistenzdaten für 5 verschiedene Ethylen-Vinylacetat-Copolymere, wobei die Temperaturabhängigkeit aller Modellparameter untersucht und korreliert wird.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1982.010330805
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  • 7
    Electronic Resource
    Electronic Resource
    Untersuchungen Zum Hochdruckphasengleichgewicht in Mischungen aus Ethylen und (ethylen-Vinylacetat)-Copolymeren. Teil I. Zur Abhängigkeit vom Vinylacetatgehalt des Copolymers (1982)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 33 (1982), S. 463-467 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Optimizing the equipment for producing high pressure (ethylene-vinylacetate)-copolymers requires data and models for the phase equilibrium conditions at high pressure. Information on the system ethylene + (ethylene-vinylacetate)-copolymer is important for this purpose. Experimental results (cloud-point curves) and model calculations (coexistencecurves) are presented with particular attention to the dependence on vinylacetate content of copolymers.
    Notes: Die Optimierung des technischen Hochdruckverfahrens zur Herstellung von (Ethylen-Vinylacetat)-Copolymeren erfordert Daten und Modelle des Hochdruckphasengleichgewichtes. Insbesondere interessieren Informationen über das Teilsystem Ethylen + (Ethylen-Vinylacetat)-Copolymere, die aus experimentellen Untersuchungen von Trübungsdruckkurven und aus Ergebnissen von Modellrechnungen zu Koexistenzdaten gewonnen werden. Dabei wird der Abhängigkeit vom Vinylacetatgehalt des Copolymers besondere Aufmerksamkeit geschenkt.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1982.010330804
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  • 8
    Electronic Resource
    Electronic Resource
    Untersuchungen zum Hochdruckphasengleichgewicht in Mischungen aus Ethylen und (Ethylen-Vinylacetat)-Copolymeren. Teil III. Der Einfluß der MolmassenverteilungTeile I und II: Acta Polymerica 33 (1982) 463 und 478 (1983)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 34 (1983), S. 340-344 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: In addition to the dependence on temperature and vinylacetate content of the copolymers, the molar mass distribution of the copolymers shows a significant influence on the high pressure phase equilibrium in the mixtures. This is demonstrated by experimental pressure-cloudpoint curves. The coexistence data are calculated with 5 different fractions of a copolymer with 33% vinylacetate content and reflect the experimental results precisely. Model calculations by a classical discontinuous calculation procedure allow the prediction of coexistence curves without additional molar mass-dependence of the model parameters. Further results are provided for the solubilities of the components in the pressure range of 30 to 100 MPa.
    Notes: Neben der Temperatur und dem Vinylacetatgehalt des Copolymers übt die Molmassenverteilung des Copolymers einen wesentlichen Einfluß auf die Lage des Hochdruckphasengleichgewichtes aus, was durch Trübungsdruckmessungen experimentell gezeigt wird. Die Berechnungen zu Koexistenzdaten für 5 verschiedene Fraktionen eines (Ethylen-Vinylacetat)-Copolymers mit ca. 33% Vinylacetatgehalt spiegeln die experimentellen Verhältnisse wider. Die Modellrechnungen mit einem klassisch diskontinuierlichen Berechnungsverfahren ermöglichen die Vorausberechnung der Koexistenzdaten ohne zusätzliche Molmassenabhängigkeit der Modellparameter. Weiterhin werden Ergebnisse zur gegenseitigen Löslichkeit im Druckbereich von 30 bis 100 MPa mitgeteilt.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1983.010340607
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  • 9
    Electronic Resource
    Electronic Resource
    Das Hochdruckphasengleichgewicht im System Ethylen + Vinylacetat + (Ethylen-Vinylacetat)-CopolymereHerrn Professor Dr. habil. Joachim Ulbricht zum 60. Geburtstag gewidmet (1984)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 35 (1984), S. 498-503 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: High pressure phase equilibrium calculations are performed with 5 (ethylene-vinylacetate)-copolymers of different vinylacetate content (8 to 42% VA). Miscibility gaps occur in the pressure range from 40 to 140 MPa. Measured pressure cloudpoints of a copolymer are compared with the calculated results. Investigations with inverse gas-liquid-chromatography provide thermodynamic data of the binary system vinylacetate + (ethylene-vinylacetate)-copolymer. The presented results show for the first time a complete picture about the demixing behaviour in this ternary system, where the monomer-mixturelines in the supercritical range. The miscibility gap is predominantly caused by the vinylacetate content of the copolymers. The influence of the distribution of molecular weight is clearly deminished in comparison to the binary system ethylene + (ethylene-vinylacetate)-copolymer.
    Notes: Berechnungen zum Hochdruckphasengleichgewicht mit fünf (Ethylen-Vinylacetat)-Copolymeren verschiedenen Vinylacetatgehaltes (8 bis 42% VA) werden durchgeführt. Die Mischungslücken im Druckbereich von 40 bis 140 MPa werden angegeben. Einige experimentelle Trübungsdrücke für ein Copolymer werden ermittelt und mit den Berechnungsergebnissen verglichen. Untersuchungen mit inverser Gaschromatographie dienen der Gewinnung thermodynamischer Daten für das binäre Teilsystem Vinylacetat + (Ethylen-Vinylacetat)-Copolymer. Die vorgelegten Ergebnisse liefern erstmalig ein geschlossenes Bild über das Phasenverhalten im ternären System, wobei die Mischung der Monomere überkritisch vorliegt. Der wesentliche Einflußfaktor auf die Entmischung ist durch den Vinylacetatgehalt des Copolymers gegeben. Der Einfluß der Molmassenverteilung wird gegenüber dem Teilsystem Ethylen + (Ethylen-Vinylacetat)-Copolymer deutlich verringert.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1984.010350705
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