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  • 1
    Electronic Resource
    Electronic Resource
    Transport measurements of Sb contacts to InP(110) (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 52 (1988), S. 739-741 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The electrical properties of antimony contacts to vacuum cleaved n- and p-type InP(110) surfaces were studied using current-voltage and capacitance-voltage techniques. While the Sb/n-InP(110) interface forms an "ohmic'' contact, an extremely large Schottky barrier was found at Sb/p-InP(110) contacts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.99341
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  • 2
    Electronic Resource
    Electronic Resource
    Raman spectroscopy of InSb/CdTe heterostructures: Improved interface quality obtained by Cd overpressure during molecular beam epitaxial growth (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 53 (1988), S. 2409-2410 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In recent photoemission and Raman experiments interfacial layers of indium telluride together with liberated antimony were found to be formed during the molecular beam epitaxial growth of CdTe on InSb(100) at elevated substrate temperatures (TS≥200 °C). We have previously suggested that the application of a sufficiently large Cd overpressure during growth is likely to suppress the formation of interfacial layers and enable successful epitaxial growth of CdTe. In this letter we present Raman spectra revealing that a flux ratio of Cd/Te=3 during growth effectively suppresses indium telluride formation leading to largely improved InSb/CdTe interfaces.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.100245
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  • 3
    Electronic Resource
    Electronic Resource
    Propellanes. 91. Fragmentation mechanism of alcohols under isobutane chemical ionization. Highly stereospecific formation of [M-OH]+ ions from [4.3.3]propellane-8,11-diols (1987)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 109 (1987), S. 7325-7327 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00258a014
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  • 4
    Electronic Resource
    Electronic Resource
    Raman study of low frequency lattice modes in dipalmitoylphosphatidylcholine (DPPC) multilayers (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 84 (1986), S. 3726-3730 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Low frequency Raman spectra (6–30 cm−1) of macroscopically ordered multilayers of dipalmitoylphosphatidylcholine (DPPC) were taken as a function of temperature (80–270 K) and for different water contents. A weak band is observed which is shifted from 18.5 to 14 cm−1 between 80 and 270 K. This band is shifted to lower frequencies with increasing water content. In addition, a strong background appears at the Rayleigh line position which grows strongly with increasing temperature. The low frequency band can be explained (1) in terms of an optical mode associated with an antiphase in-plane vibration of two opposing monolayers or it can (2) be attributed to rotational vibrations of the hydrocarbon chains. The softening of this band is attributed to a decrease in the chain orientational order with increasing temperature. The increasing rotational freedom is expected to cause a transition from a monoclinic or orthorhombic to a hexagonal lattice and eventually triggers the Lβ' → Lα chain melting transition (at T=340 K for 5.3 wt. % of water). The appearance of the background can also be attributed to an increasing anharmonicity of the lattice potential upon approaching the phase transition, which leads to mode coupling. The possibility of ferroelectric order due to a collective orientation of the dipole moments of the C–O groups of the glycerol backbone is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.450212
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  • 5
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    Häfker, Hermann. Kino und Erdkunde (Book Review) (1915)
    Wiesbaden : Periodicals Archive Online (PAO)
    Geographische Zeitschrift. 21:1 (1915:Jan. 29) 55 
    Details
    ISSN: 0016-7479
    Topics: Geography
    Notes: Bücherbesprechungen
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:h092-1915-021-01-000014
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  • 6
    Electronic Resource
    Electronic Resource
    Decision-theoretic analysis of envisaged income tax reforms for FRG and USA (1988)
    Springer
    Annals of operations research 16 (1988), S. 105-116 
    Details
    ISSN: 1572-9338
    Keywords: Tax reforms ; progressive taxation ; risk-taking ; certainty equivalent approach
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Notes: Abstract There are essentially two alternatives to analyse the impacts of tax reform proposals on risk-taking: the two-asset model and the certainty equivalent approach. Here risk-taking is defined in terms of the certainty equivalent approach. The paper discusses the effects of current tax reform proposals in the Federal Republic of Germany and in the United States with respect to risk-taking. Among others it is shown that there are unambiguous effects of the reform proposals as far as the upper income class is considered. Furthermore, the paper studies some impacts of the transition from the FRG-scheduleT 88 (coming into force at the beginning of 1988) to an intended schedule characterized by a linearly increasing marginal tax rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02283739
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  • 7
    Electronic Resource
    Electronic Resource
    Distribution of the soft-bottom macroinfauna in an estuary of Southern Chile (1985)
    Springer
    Marine biology 86 (1985), S. 93-100 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In April 1981, a quantitative survey (20 stations) of the soft-bottom macroinfauna of the littoral and sublittoral was conducted in a Southern Chilean estuary. A principal component analysis rendered three groups of stations with different substrate conditions. A total of 16 775 animals was collected (40 taxa), with Oligochaeta, Polychaeta and Ostracoda representing 83% of the individuals. Most of the biomass was attributed to Bivalvia (43.7%) and Polychaeta (33.6%). Factor analysis using abundance data of the 21 most abundant taxa rendered three groups of stations in the Q-mode (a cluster analysis rendered 4) and three groups of taxa in the R-mode. One group mainly inhabited the sandy outlet area of the estuary where salinity was highest. Another group of organisms was mainly found in the upper zone of the estuary where salinity was low and the substrate was muddy. The third group was principally distributed in the central part of the estuary and spread from there either to the outlet area or to the upper zone. Some ungrouped taxa were distributed relatively homogeneously within the estuary. It was found that besides substrate properties salinity and turbulence also played an important role in the distribution of organisms in the Río Lingue Estuary.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00392583
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  • 8
    Electronic Resource
    Electronic Resource
    Eindimensionale stationäre Gleichdruekströmung in bewegten Systemen (1948)
    Springer
    Archive of applied mechanics 16 (1948), S. 422-445 
    Details
    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 Ausgehend von der Eulerschen Gleichung für die eindimensionale, stationäre Strömung einer idealen Flüssigkeit, für die der auf die Flächeneinheit bezogene Flüssigkeitsdruck überall konstant angenommen wird, werden Strömungen in bewegten Systemen untersucht. Das System war einer gleichförmigen Translation bzw. einer gleichförmigen Drehung unterworfen. Der Zuwachs des Quadrates der Absolutgeschwindigkeit wurde speziell als linear abhängig von einer Längenkoordinate gefordert. Die sich ergebenden partiellen Differentialgleichungen wurden teils rechnerisch, teils graphisch integriert. Es konnten dann sowohl die Absolutbahn als auch die Relativbahn der Bewegung bestimmt werden. Über den Zusammenhang der gefundenen Ergebnisse mit einer von Trefftz gegebenen Formel, die in einer Patentschrift des Reichspatentamtes veröffentlicht ist, und über darüber hinausgehende Anwendungen im Strömungsmaschinenbau soll später berichtet werden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00534504
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  • 9
    Electronic Resource
    Electronic Resource
    Über eine Formel für Gleichdruckgebläse (1949)
    Springer
    Archive of applied mechanics 17 (1949), S. 88-93 
    Details
    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 Von einigen einer früheren Arbeit entnommenen Formeln ausgehend, wurde die eindimensionale stationäre Gleichdruckströmung entlang eines Stromfadens angegeben, der sich ganz auf einem gleichförmig um seine, Achse rotierenden Zylinder befindet. Als Ergebnis wurde eine Beziehung zwischen der Fläche des Radialschnittes durch einen Punkt und zwischen dem Winkel erhalten, unter dem die Zylindererzeugende im betreffenden Punkte von der Relativbahn geschnitten wird. Für diese Beziehung wurden zwei Näherungen angegeben, von denen die eine bei der Konstruktion derSchicht-Gebläse verwendet wird. Durch eine rein formale Erweiterung der für diesen Grundzylinder gefundenen Ergebnisse wurde ein Verfahren erhalten, nach dem diejenigen Kurven ermittelt werden können, in denen die Laufradschaufel eine beliebige mit ihr koachsiale Drehzylinderfläche schneidet. Es wurde gezeigt; daß beimSchicht-Gebläse von einem weitgehend willkürlich angenommenen zylindrischen Schaufelschnitt oder von einer weitgehend willkürlich gewählten Form des Laufradkanals ausgehend die Schaufelform ermittelt werden kann. Gleichdruck herrscht im Laufrad genau nur auf einer der mit dem Laufrad koachsialen Drehzylinderflächen unter den bei den Herleitungen als solche gekennzeichneten Annahmen für eine verlustlose Strömung um unendlich dünne Schaufeln.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00571965
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  • 10
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    Genser, B.: Steuerlastindizes - Theorie und empirische Evidenz (Book Review) (1986)
    Wien : Periodicals Archive Online (PAO)
    Journal of economics/Zeitschrift für Nazionalökonomie. 46 (1986) 88 
    Details
    ISSN: 0931-8658
    Topics: Economics
    Notes: Book Reviews
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4223-1986-046-00-000034
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