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  • 1
    ISSN: 1432-1238
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 3 (1996), S. 3492-3500 
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The operation of a 92 GHz quasi-optical gyrotron having a resonator formed by a spherical mirror and a diffraction grating placed in −1 order Littrow mount is presented. A power of 150 kW with a Gaussian output pattern was measured. The Gaussian content in the output was 98% with less than 1% of depolarization. By optimizing the magnetic field at fixed frequency, a maximum efficiency of 15% was reached.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 309 (1982), S. 185-186 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Tantalum 164 to 167, Zirconium 82 to 84 and Strontium 78 have been selectively observed at the ISOCELE-2 on-line mass separator (1) in the TaF4 +, ZrF3 + and SrF+ compound form. New isotopes have been identified:165Ta (31.0±1.5 s),164Ta (13.7±0.6 s),82Zr, (32±5 s) and78Sr (2.5±0.3 mn).
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1434-601X
    Keywords: 23.20.Lv ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract From new measurements, a half-live of 4.2±0.3 s has been clearly established in127Pr. This value confirms our first result [4] and rules out other data [5]. The127Pr activity was produced by bombarding92Mo or94Mo targets with 210 MeV40Ca beams. The mass identification has been made using an ion-guide coupled with an on-line isotope separator. The partial level scheme proposed for127Ce has been deduced from β-gated γ spectra and Xγ- and γγ-coincidences. A new band structure based on a 1/2+ state is established.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1572-9680
    Keywords: competition ; leaf water potential ; plantation forestry ; soil moisture ; timber species
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In Italy, new agroforestry cultural models could play an important role in the diffusion of plantation forestry timber species. We studied the stem growth rates and leaf water potentials (Ψ) of common walnut (Juglans regia L.), and gravimetric soil moisture (θDW) depletion during the third and fourth growing seasons in an agroforestry trial in central Italy. Since the establishment of experimental plots in 1992, walnut was intercropped with alfalfa (Medicago sativa L.), with or without polyethylene (PE) mulching along tree rows. By the end of the study period, the unmulched-intercropped walnut was almost 68% smaller in stem diameter and height than the sole-unmulched control, demonstrating walnut’s sensitivity to alfalfa competition. The competitive effect of alfalfa on walnut stem growth was effectively controlled/reduced by PE mulching. Stem growth rates of mulched-intercropped walnut were always lower than the control, but much higher (ca. 235% in stem diameter and height) than those of unmulched-intercropped walnut. The higher field performance of mulched-intercropped walnut compared to the un- mulched-intercropped treatment was associated with higher soil moisture and predawn and midday Ψ values during the summer’s driest periods. The presence of PE mulching was also associated with lower levels of soil moisture during the early and late growing season, but this did not negatively affect walnut Ψ and growth rates. These results suggest that in the climatic conditions of central Italy, competition for soil moisture between young common walnut trees and alfalfa can be substantially lowered, but not completely eliminated, by PE mulching.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Intensive care medicine 8 (1982), S. 93-95 
    ISSN: 1432-1238
    Keywords: Intravenous nitroglycerin ; Polyvinyl chloride tubing ; Polyethylene tubing ; Polypropylene syringe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Two types of intravenous nitroglycerin (NTG) perfusion sets were studied using laboratory techniques. A known concentration of NTG was placed in each of these sets, and an evaluation was made as to the dose of NTG actually received by the patient after passage of the NTG solution through the sets. Set number one consisted of a glass container and polyvinyl chloride (PVC) tubing. After passage through this set, there was a rapid and significant decrease in the NTG concentration, i.e. the dose actually received by the patient is less than the dose theoretically administered. Set number two consisted of a polypropylene syringe and polyethylene tubing. After passage through this set, there was no significant change in the NTG concentration, i.e. the patient receives the full theoretical dose.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    International journal of fracture 17 (1981), S. R151 
    ISSN: 1573-2673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    International journal of fracture 1 (1965), S. 189-203 
    ISSN: 1573-2673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Résumé On dérive l'Equation générale des champs de tension d'une pointe de fissure dans un corps anisotrope par une approximation de variable complexe. On a dévini et évalué les facteurs d' intensité de tension qui permettent la représentation concise des conditions pour l'extension d'une fissure, directement des fonctions de tension. On donne quelques solutions de problèmes à valeur limite en forme implicite et on les discute en correspondance avec les solutions analogues pour corps isotropes. On a trouvé qu'une singularité de tension élastique de l'ordre de r −1/2 (où r est la distance radiale depuis le front de la fissure) est toujours présente à la pointe d'une fissure dans un corps rectilinéairement anisotrope. Ce résultat et quelques considérations additionelles des champs de tension de la pointe d' une fissure impliquent la possibilité d'étendre les applications courantes de théories de mécanisme de fracture à la représentation de conditions de fracture de corps anisotropes avec des imperfections en forme de fissures.
    Abstract: Zusammenfassung Die aligemeinen Gleichungen für Spannungsfelder an der Spitze eines Risses in anisotropischen Körpern werden näherungsweise unter Benützung einer komplexen Variabele abgeleitet. Die Spannungsintensitätsfaktoren, die eine kurzgefasste Darstellung der Bedingungen für Rissausbreitung gestatten, werden definiert and unmittelbar aus Spannungsfunktionen bestimmt. Einige individuellen Lösungen von Grenzwert-Problemen werden in geschlossener Form gegeben and bezüglich ihrer analogen Lösungen für isotrope Körper diskutiert. Es ergibt sick, dass eine elastische Spannungssingularität der Ordnung r −1/2 an der Spitze eines Risses in einem Körper mit rectilinearischer Anisotropie immer da ist. (r ist die Radiusabstand von der Rissfront). Dieses Ergebnis, und einige weiteren Betrachtungen der Spannungsfelder an der Rissspitze weisen darauf hin, dass es möglich ist, die geläufigen Methoden der Bruchmechanik für die Darstellung von Bruchbedingungen anisotropischer Körper mit rissartigen Fehlern zu erweitern.
    Notes: Abstract The general equations for crack-tip stress fields in anisotropic bodies are derived making use of a complex variable approach. The stress-intensity-factors, which permit concise representation of the conditions for crack extension, are defined and are evaluated directly from stress functions. Some individual boundary value problem solutions are given in closed form and discussed with reference to their companion solutions for isotropic bodies. It is found that an elastic stress singularity of the order r −1/2 is always present at the crack tip in a body with rectilinear anisotropy (r being the radial distance from the crack front). This result and some additional consideration of the crack-tip stress fields imply that it is possible to extend current fracture mechanics methods to the representation of fracture conditions for anisotropic bodies with cracklike imperfections.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1434-601X
    Keywords: PACS:21.10.Tg Lifetimes – 23.20.Lv Gamma transitions and level energies – 23.20.Nx Internal conversion and extranuclear effects – 25.70.Gh Compound nucleus – 27.50.+e 59 A 89
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The atomic nucleus 74Kr has been investigated using combined conversion-electron (CE) and γ-ray spectroscopy. In order to confirm the existence of the expected low-lying isomeric 0+ 2 state, the possibility of an electric-monopole (E0) decay to the ground state was examined. The observation of an E0 transition at 508 keV allowed the determination of the mixing between coexisting prolate and oblate shapes.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 297 (1980), S. 303-306 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new isotope152Tm (T 1/2=5.2±0.6 s) and a new isomeric state in150Ho (T 1/2=88±15 s) were observed with the on-line isotope separator ISOCELE II at Orsay. The decay of152Tm is similar to the one of the high spin state (9+) in150Ho. The new150Ho isomer, probably with a low spin (2 or 3), decays mainly to the 2+ level in150Dy.
    Type of Medium: Electronic Resource
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