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  • 1
    Electronic Resource
    Electronic Resource
    Characterization and stabilization of fiber-coupled laser diode arrays (1999)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 70 (1999), S. 2905-2909 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We have characterized the spectra and performance of an ensemble of 11 fiber-coupled laser diode arrays (LDAs) manufactured by Opto Power Inc. These high-power LDAs operate near 795 nm and are of a type commonly used for spin-exchange optical pumping of noble gases. We find the Opto Power LDAs to vary significantly in output power, spectral width, and other important characteristics, in a manner not correlated with age, operating lifetime, or information supplied by the manufacturer. In addition we have developed a two-loop feedback technique for use with LDAs that stabilizes the Rb magnetization in an optical pumping cell to better than one part in a thousand. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1149847
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    C(1)-C(α) Torsion Potential Function and Vibrational Assignments of trans-β-Methylstyrene from S1-S0 Supersonic Jet Fluorescence Spectra (1995)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 99 (1995), S. 4386-4396 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100013a006
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A Simple Automatic Fraction-Cutter for Liquid Columns (1949)
    [s.l.] : Nature Publishing Group
    Nature 164 (1949), S. 545-545 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WITH increasing use of chromatographic columns, the need has arisen for automatic fraction-cutting apparatus. Stein and Stanford Moore1 have devised such an apparatus in which the fraction is measured photo-electrically and the battery of receivers then moved on by an electric ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/164545a0
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  • 4
    Electronic Resource
    Electronic Resource
    Reflexion method for projecting crystal-structure models (1949)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 2 (1949), S. 420-420 
    Details
    ISSN: 0001-5520
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0365110X49001090
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Dislocating the Soul (1995)
    Cambridge : Cambridge University Press
    Religious studies 31 (1995), S. 447-462 
    Details
    ISSN: 0034-4125
    Source: Cambridge Journals Digital Archives
    Topics: Theology and Religious Studies
    Notes: Many analyses of belief in the soul ignore the soul in the words. Dislocations of concepts occur when words are divorced from their normal implications. The ‘soul’ is sometimes the dislocated utterer of such words. Pictures, including pictures of the soul leaving the body, may mislead us by suggesting applications which they, in fact, do not have. But pictures of the soul may enter people's lives as desires for a temporal eternity. Contrasting conceptions of immortality and eternal life depend on a willingness to say farewell to life. Atheistic denials of temporal eternities, do not appreciate these other possibilities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1017/S0034412500023866
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  • 6
    Electronic Resource
    Electronic Resource
    On Giving Practice its Due – a Reply (1995)
    Cambridge : Cambridge University Press
    Religious studies 31 (1995), S. 121-127 
    Details
    ISSN: 0034-4125
    Source: Cambridge Journals Digital Archives
    Topics: Theology and Religious Studies
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1017/S0034412500023350
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  • 7
    Electronic Resource
    Electronic Resource
    Epistemic practices — A reply to William Wainwright (1995)
    Springer
    Topoi 14 (1995), S. 95-105 
    Details
    ISSN: 1572-8749
    Source: Springer Online Journal Archives 1860-2000
    Topics: Philosophy
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00769716
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  • 8
    Electronic Resource
    Electronic Resource
    Stable Nucleation for the Ginzburg-Landau System with an Applied Magnetic Field (1998)
    Springer
    Archive for rational mechanics and analysis 142 (1998), S. 1-43 
    Details
    ISSN: 1432-0673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract. We consider the Ginzburg‐Landau system with an applied magnetic field and analyze the behavior of solutions when the domain is a cylinder (of radius $\overline{r}$ ) and the applied field is parallel to the axis. It is shown that there is an upper critical value $\overline{h}$ such that if the modulus of the applied field is greater than $\overline{h}$ , the normal (nonsuperconducting) state (in which the order parameter is identically zero) is stable and if the modulus of the applied field is slightly below $\oh$ , the normal state is unstable. In addition, it is shown that there is a positive lower critical value $\underline{h}\leq\overline{h}$ such that the normal state is unstable if the modulus of the applied field is less than $\underline{h}$ and stable if the modulus is slightly above $\underline{h}$ . In the case of type‐II materials for whic h the Ginzburg‐Landau constant κ is large, it is shown that there is a discrete set of radii ℬ(κ) such that if $\overline{r}\notin\cal{B}(\kappa)$ and $\kappa\overline{r}$ is sufficiently large, then for each applied field of modulus slightly less than $\overline{h}$ (or slightly more than $\underline{h}$ ) there is precisely one small superconducting solution (up to a gauge transformation) which is stable. Moreover for this solution, the complex‐valued order parameter ψ is zero only on the axis of the cylinder, and its winding number is proportional to the product of κ2 and the cross‐sectional area of the cylinder. In addition, the solution exhibits “surface superconductivity” as predicted by the physicists de Gennes and St. James.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002050050082
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  • 9
    Electronic Resource
    Electronic Resource
    A Covariant Gauge-Invariant Three-Dimensional Description of Relativistic Bound States (1998)
    Springer
    Few body systems 24 (1998), S. 175-191 
    Details
    ISSN: 1432-5411
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. A formalism is presented that allows covariant three-dimensional bound-state equations to be derived systematically from four-dimensional ones without the use of delta functions. The amplitude for the interaction of a bound state described by these equations with an electromagnetic probe is constructed. This amplitude is shown to be gauge-invariant if the formalism is truncated at the same coupling-constant order in both the interaction kernel of the integral equation and the electromagnetic current operator.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s006010050084
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  • 10
    Electronic Resource
    Electronic Resource
    The Core of the Insulin Molecule (1948)
    [s.l.] : Nature Publishing Group
    Nature 162 (1948), S. 418-419 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ON account of its stability and well-defined crystalline character, insulin is a favourable point at the present time to attack protein structure. Its composition is probably better known than that of any other protein. The stoichiometrical molecular weight, that is, the least Weight into which all ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/162418a0
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