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  • 1
    Electronic Resource
    Electronic Resource
    High confinement and high density with stationary plasma energy and strong edge radiation cooling in the upgraded Torus Experiment for Technology Oriented Research (TEXTOR-94) : The 38th annual meeting of the Division of Plasma Physics (DPP) of the American Physical Society (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 1690-1698 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An overview of the results obtained so far for the radiative I-mode regime on the upgraded Torus Experiment for Technology Oriented Research (TEXTOR-94) [Proceedings of the 16th IEEE Symposium on Fusion Engineering (Institute of Electrical and Electronics Engineers, Piscataway, NJ, 1995), Vol. 1, p. 470] is given. This regime is obtained under quasistationary conditions with edge neon seeding in a pumped limiter tokamak with circular cross section. It combines high confinement and high β (up to a normalized beta, βn=2) with low edge q values (down to qa=2.8) and high density even above the Greenwald limit together with dominant edge radiative heat exhaust, and therefore shows promise for the future of fusion research. Bulk and edge properties of these discharges are described, and a detailed account is given of the energy and particle confinement and their scaling. Energy confinement scales linearly with density as for the nonsaturated Ohmic Neo-Alcator scaling, but the usual degradation with total power remains. No deleterious effects of the neon seeding on fusion reactivity and plasma stability have been observed. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872343
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  • 2
    Electronic Resource
    Electronic Resource
    Europium diffusion enhancement in lithium niobate by GeV gadolinium ion irradiations (1995)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 77 (1995), S. 2952-2956 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Single crystals of lithium niobate (LiNbO3) with y-cut orientation were irradiated at GANIL with 5.17 MeV/amu 155Gd ions at a fluence ranging from 1.5×1011 to 6.0×1011 ions cm−2. After irradiation the samples were implanted with europium ions of 70 keV energy at a fixed fluence of 5×1016 ions cm−2. Both irradiations and implantations were performed at room temperature. Thermal treatments in air, in the range 300–1100 °C, were applied to investigate the influence of the preirradiation damage on the thermal evolution of Eu implanted LiNbO3 crystals. Transmission electron microscopy micrographs exhibit the amorphous track formed by high-energy irradiations. Rutherford backscattering spectrometry results show that these amorphous tracks enhance the europium diffusion in depth of the LiNbO3. A diffusion coefficient and an activation energy were estimated to be about 4.2×10−15 cm2 s−1 and 0.42 eV, respectively. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.358711
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  • 3
    Electronic Resource
    Electronic Resource
    Organic reagent interaction with hair spatially characterized by infrared microspectroscopy using synchrotron radiation (1998)
    Dordrecht, The Netherlands : Kluwer Academic Publishers
    International journal of cosmetic science 20 (1998), S. 0 
    Details
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The penetration of chemical reagents through human hair after bleaching has been spatially characterized using infrared microspectroscopy (IMS) with a synchrotron source. Chemical imaging of hair cross sections before and after bleaching was achieved with high contrast, using the peptide and lipid mid-infrared vibrational bands which are characteristic of hair. The ability to make images using functional groups as a contrast mechanism can be applied to studies of other chemical groups, if present, in the structure of the hair. As an example we show how the penetration of an organic active reagent in the hair structure can be quantified with a spatial resolution of few microns.These results demonstrate that synchrotron IMS is a powerful tool for characterizing chemical interactions of hair samples with specific cosmetic materials.〈section xml:id="abs1-2"〉〈title type="main"〉RésuméLa pénétration d'une molécule organique à l'intérieur de cheveux décolorés a été spatialement caractérisée par microspectroscopie infrarouge en utilisant une source de rayonnement synchrotron. Les images en contraste chimique de coupes microtomiques transversales de cheveux ont été obtenues avec un excellent contraste, en utilisant les bandes infrarouges des groupements peptides et lipidiques qui sont caractéristiques de sa structure. La possibilité d'obtenir des images en utilisant les différents groupements fonctionnels présents dans les spectres infrarouges permet d'étudier la répartition d'autres molécules chimiques si elles sont présentes en concentration suffisante dans la structure du cheveu. Cette caractéristique a été utilisée ici pour étudier la pénétration d'une molécule organique à travers la structure du cheveu avec une résolution latérale de quelques microns. Ces résultats démontrent la faisabilité de la microspectroscopie infrarouge par rayonnement synchrotron pour étudier spatialement les interactions entre le cheveu et des produits cosmétiques.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1467-2494.1998.177055.x
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  • 4
    Electronic Resource
    Electronic Resource
    High trapped fields in bulk YBa2Cu3O7−δ samples at temperatures around 50 K (1997)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 70 (1997), S. 117-119 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Bulk melt textured YBa2Cu3O7−δ samples with single grains of about 24 mm diameter were obtained by use of SmBa2Cu3O7−x seed crystals. The maximum trapped field B0 in the gap between two samples was investigated as function of temperature. B0 increased from 1 T at 77 K to 8.5 T at 51.5 K, which is the highest trapped field achieved in nonirradiated samples. At low temperatures, cracking of the samples was observed under magnetic pressure. In this temperature range, the trapped field is limited by the mechanical strength of the samples, for which a value of 25 MPa was estimated. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.119280
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  • 5
    Electronic Resource
    Electronic Resource
    Enhanced flux pinning in (Nd0.33Sm0.67)Ba2Cu3O7−δ melt-processed superconductors by Ar postannealing (1999)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 75 (1999), S. 259-261 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: High-quality binary (Nd0.33Sm0.67)Ba2Cu3O7−δ monodomain superconductors were fabricated by the combination of a compositional-controlled melt-processing technique in air and postannealing in Ar. Critical current densities over the whole field range were observed strongly dependent on Ar postannealing while holding superconducting transition temperatures as high as 96 K. The suppressed chemical variation between the rare-earth element (RE: Nd, Sm) and Ba associated with disperse RE2BaCuOy (RE211) precipitate due to the decomposition occurring in Ar postannealing was attributed to the modified flux pinning. This makes Ar postannealing promising to process superconductors with desired properties for various applications. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.124341
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  • 6
    Electronic Resource
    Electronic Resource
    Magnetic structure and superconductivity in (HoxY1−x)Ni2B2C : The 41st annual conference on magnetism and magnetic materials (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 4240-4242 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The superconducting transition and the magnetic structure of polycrystalline (HoxY1−x)Ni2B2C have been investigated for x≥0.75 by resistivity measurements and neutron diffraction, respectively. For HoNi2B2C, the well known antiferromagnetic structure with c- and a-axis components existing between 4.5 and 6 K has been confirmed. Whereas for all investigated samples the component having the a-axis modulated structure exists in a narrow temperature range only, the intensity connected to the spiral magnetic state along the c-axis increases for x=0.85 and x=0.75 monotonically as the temperature decreases to the lowest measuring temperature of 1.6 K. Our results strongly suggest that the incommensurate modulated structure along the a-axis is responsible for pair breaking in the investigated (HoxY1−x)Ni2B2C samples. On the other hand, the magnetic spiral structure with c-axis wave vector was found to coexist with superconductivity. A linear suppression of the superconducting transition temperature with increasing Ho content was observed which is in agreement with the Abrikosov–Gor'kov theory. We found a linear scaling with the effective de Gennes factors (x DG) (Ho) for both the superconducting transition and the magnetic ordering temperatures. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.365133
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  • 7
    Electronic Resource
    Electronic Resource
    Novel reactions and catalytic mechanisms in anaerobic microorganisms (1998)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology reviews 22 (1998), S. 0 
    Details
    ISSN: 1574-6976
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6976.1998.tb00374.x
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  • 8
    Electronic Resource
    Electronic Resource
    206. Zur Behandlung der dislozierten Radiushalsfraktur im Kindesalter (1974)
    Springer
    Langenbeck's archives of surgery 337 (1974), S. 854-855 
    Details
    ISSN: 1435-2451
    Keywords: Radius-neck Fractures in Childhood ; Spongiosa ; Radiushalsfrakturen ; Kindesalter ; Spongiosaunterfütterung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Radiushalsfrakturen sind typische Verletzungen des Kindesalters. Bei geringer Dislokation des Radiusköpfchens ist die konservative Behandlung ausreichend. Bei Abkippwinkeln caber 30° wird die operative Aufrichtung empfohlen and Unterfütterung mit einem Spongiosakeil zur Fixation. Anschließend für 6 Wochen Oberarmgipsverband. In allen Fällen kam es zur vollen Funktionsrückkehr des Ellenbogengelenkes.
    Notes: Summary Fractures of the neck of the radius are typical childhood injuries. Minimal displacement requires only conservative treatment. In cases with more severe dislocation of the head of the radius (more than 30°) operative reduction followed by fixation with a wedge of spongiosa is recommended. Full function of the elbow joint is recovered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01278838
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  • 9
    Electronic Resource
    Electronic Resource
    Bestimmung des Wirkungsquerschnitts σ(Cs+→Cs) aus Sondenmessungen in einem thermischen Cs-Plasma (1970)
    Springer
    The European physical journal 237 (1970), S. 427-431 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The ion currentI i to a Langmuir probe was measured in a Cs-plasma which was produced by contact ionization and for which the neutral densityn g is known and the plasma density is given by the Saha equation. Using the theory of Self and Shih the collision cross section σ(Cs+→Cs) was calculated from the measured ion currentI i .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01407640
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  • 10
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    H. Laitko W.-D. Sprung: Chemie und Weltanschauung (Book Review) (1972)
    Berlin : Periodicals Archive Online (PAO)
    Deutsche Zeitschrift für Philosophie. 20:12 (1972) 1527 
    Details
    ISSN: 0012-1045
    Topics: Philosophy
    Description / Table of Contents: Rezensionen
    Notes: ZUM 50. JAHRESTAG DER BILDUNG DER UNION DER SOZIALISTISCHEN SOWJETREPUBLIKEN
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4085-1972-020-12-000011
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