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  • Electronic Resource  (7)
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  • Electronic Resource  (7)
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  • 1
    Electronic Resource
    Electronic Resource
    Determining the evaporation rate of solvents at high temperatures (1936)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 8 (1936), S. 432-435 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac50104a010
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Gasket (1936)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 28 (1936), S. 164-170 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50314a005
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Packing the Centrifugal Pump (1939)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 31 (1939), S. 929-933 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50356a002
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Vision Myopia and ambient night-time lighting (2000)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 404 (2000), S. 144-144 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Quinn et al. report a strong association between myopia in children and their exposure to night-time lighting during their first two years. We have been unable to confirm this surprising result, but we find that myopic parents are more likely to employ night-time lighting aids for their ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35004663
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Tensor polarizabilities of the (nd+(n+1)s)3 2 D 3/2,5/2 levels in Sc I, Y I, La I and Lu I (1994)
    Springer
    The European physical journal 31 (1994), S. 31-36 
    Details
    ISSN: 1434-6079
    Keywords: 32.60.+i ; 32.80.Bx ; 35.10.Di
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A technique based on the detection of nonlinear level-crossing resonances in parallel electric and magnetic fields has been extended to the study of the Stark splittings in the hyperfine levels of the ground multiplets (nd+(n+1)s)3 2 D 3/2,5/2 in Sc I, Y I, La I, and Lu I. Values of the tensor polarizabilities of thend electrons were evaluated from the experimental results. The variation of the tensor polarizabilities of thend electrons in the configurations under study is discussed. Trends of the polarizabilities in different configurations are compared. The ratio between the electric quadrupole constant and the tensor polarizabilities is constant in La and different in Lu, which is caused by a breakdown of the central field model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426574
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  • 6
    Electronic Resource
    Electronic Resource
    Tensor polarizabilities of the 4f 7(8 S)5d6s 2 9 D 2,3,4,5,6 levels in Gd I (1993)
    Springer
    The European physical journal 27 (1993), S. 39-43 
    Details
    ISSN: 1434-6079
    Keywords: 32.60. + i ; 32.80.Bx
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The optical pumping method with rf detection and the nonlinear level crossing technique were used in parallel electric and magnetic fields to investigate the Stark splitting of all the fine structure levels of the ground multiplet 4f 7 (8 S) 5d6s 2 9 D in Gd I. The tensor polarizabilities were deduced from the level crossing and the rf signals. The variation of the tensor polarizabilities is well reproduced by the LS coupling approximation, except for the small value of the9 D 5 level. A value of the tensor polarizability of the 5d electron is evaluated from the experimental results, α2(5d)=2.00(6) kHz(kV/cm)2. It is shown that the ratio between the electric quadrupole constant and the tensor polarizability is constant, except for the9 D 5 ratio, which is caused by a breakdown of the central field model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01436760
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  • 7
    Electronic Resource
    Electronic Resource
    On the tensor polarizabilities in the 4f N 6s 2 ground levels of the neutral rare-earth atoms (1994)
    Springer
    The European physical journal 32 (1994), S. 173-177 
    Details
    ISSN: 1434-6079
    Keywords: 32.60.+i ; 32.80.Bx ; 35.10.Di
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A systematic study of the Stark splitting of the 4f N 6s 2 ground levels in the lanthanides was performed by the nonlinear level-crossing technique and the optical pumping method with rf detection in parallel electric and magnetic fields. The tensor polarizabilities of the hyperfine structure levels in141Pr I,159Tb I,165Ho I,169Tm I and of the fine structure levels in142Nd I,164Dy I, and166Er I were deduced from the level-crossing and rf signals. Values of the tensor polarizability of the 4f electron were evaluated from the experimental results. On average these values decrease with the increasing number of 4f electrons from the value of141Pr (4f 3 6s 2) α2(4f)=1.16(12) kHz/(kV/cm)2 to the value of169Tm (4f 136s 2) α2(4f)=0.68(4) kHz/(kV/cm)2. This decrease is caused by the lanthanides contraction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01437144
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    Paper (German National Licenses)
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