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  • 11
    Electronic Resource
    Electronic Resource
    The effect of tensor correlations on isovector operators (1976)
    Springer
    The European physical journal 278 (1976), S. 201-203 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Very simple relations between renormalization factors and corrections to the GT-typeΒ-decay operator, isovector magnetic moment and coulomb energy differences between mirror nuclei due to tensor correlations are obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01437776
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  • 12
    Electronic Resource
    Electronic Resource
    Role ofΔ(1232) in pion condensation in16O (1980)
    Springer
    The European physical journal 297 (1980), S. 275-276 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We investigate the effect of Δ(1232) in pion condensation in16O within a model where the spins of all protons are oriented in one direction and those of neutrons in opposite direction. Both the π and the ρ exchange interactions have been considered. The effect of the Δ(1232) is found to be important.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01892809
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  • 13
    Electronic Resource
    Electronic Resource
    Two nucleon emission following bound pion absorption (1978)
    Springer
    The European physical journal 287 (1978), S. 299-306 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The absorption of a bound 2p pion in16O with the emission of two fast nucleons leading to low excitation of the residual nucleus has been studied. In our calculation, the following important effects have been considered simultaneously: (i) correlations in the initial nuclear wave function are treated on the basis of the Brueckner theory, (ii) the mutual final state scattering of the emitted pair and (iii) the nucleon-nucleus scattering are taken into account by the use of eikonal model wave function. Results are compared with other calculations and experiments. It is found that inspite of our elaborate treatments serious discrepancies between theory and experiments still remain. A more careful study of the absorption mechanism is emphasized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01481710
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  • 14
    Electronic Resource
    Electronic Resource
    Patterns of the choriocapillaris (1983)
    Springer
    International ophthalmology 6 (1983), S. 95-99 
    Details
    ISSN: 1573-2630
    Keywords: trypsin digestion ; corrosion cast technique ; vortex vein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We examined the architecture of the choriocapillaris in enucleated human eyes by flat preparation using trypsin digestion and corrosion cast technique by injecting methacrylate into the vortex vein. The choriocapillaris in the posterior fundus had a distinct lobular pattern of about 600μ in diameter. An arteriole entered the lobule at its center, and a ring of collector capillaries surrounded the lobule. In the equatorial and more peripheral fundus, arterioles and veins were located in the plane of the choriocapillaris, and the choriocapillaris was segmental in arrangement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00127637
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  • 15
    Electronic Resource
    Electronic Resource
    Generalized Farkas' theorem and optimization of infinitely constrained problems (1983)
    Springer
    Journal of optimization theory and applications 40 (1983), S. 451-462 
    Details
    ISSN: 1573-2878
    Keywords: Farkas' theorem ; theorems of the alternative ; optimality conditions ; min-max problems ; optimization satisfaction problem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract This note is concerned with the generalization of Farkas' theorem of the alternative and its application to derive the necessary optimality conditions for min-max problems with satisfaction conditions. Farkas' theorem is generalized to a system of linear inequalities with max operations. The problems studied require a solution at which the worst objective value attains its minimum over a set of solutions fulfilling satisfaction conditions. The satisfaction conditions claim that plural performance criteria should be kept below the permissible level, whatever disturbances may happen or whatever opponents' decisions may be taken. We present a generalized Farkas' theorem in order to derive the necessary optimality conditions for the problems of this class.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00933510
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  • 16
    Electronic Resource
    Electronic Resource
    Hierarchical multi-objective decision systems for general resource allocation problems (1981)
    Springer
    Journal of optimization theory and applications 35 (1981), S. 517-533 
    Details
    ISSN: 1573-2878
    Keywords: Two-level planning ; multi-objective systems ; decentralized systems ; resource allocation ; nonlinear programming
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract We consider optimization methods for hierarchical power-decentralized systems composed of a coordinating central system and plural semi-autonomous local systems in the lower level, each of which possesses a decision making unit. Such a decentralized system where both central and local systems possess their own objective function and decision variables is a multi-objective system. The central system allocates resources so as to optimize its own objective, while the local systems optimize their own objectives using the given resources. The lower level composes a multi-objective programming problem, where local decision makers minimize a vector objective function in cooperation. Thus, the lower level generates a set of noninferior solutions, parametric with respect to the given resources. The central decision maker, then, parametric with respect to the given resources. The central decision maker, then, chooses an optimal resource allocation and the best corresponding noninferior solution from among a set of resource-parametric noninferior solutions. A computational method is obtained based on parametric nonlinear mathematical programming using directional derivatives. This paper is concerned with a combined theory for the multi-objective decision problem and the general resource allocation problem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00934930
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  • 17
    Electronic Resource
    Electronic Resource
    Magnetoresistance oscillations in aluminum near the [001] axis (1979)
    Springer
    Journal of low temperature physics 35 (1979), S. 41-52 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Quantum oscillations in the transverse magnetoresistance of aluminum single crystals were measured at 4.2 K in fields near the [001] direction of up to 50 kOe. The rotation diagrams around two axes, the current axis (θ-rotation) and normal to it (Φ-rotation), were investigated by directly measuring the amplitude of oscillations in steps of about 0.1†. As the field was tilted from [001] by about 2.5† in the Φ plane, the separation of double maxima in the θ rotation diagram changed from 0.8† to 5.0† for the [010] current samples, and from 2.8° to 5.6° for the [110]current samples, and the amplitude of oscillation decreased. A fast oscillation, which had not been observed in conventional dc magnetoresistance measurements, was simultaneously detected near the field direction where the β-orbit oscillations have a maximum amplitude.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00121721
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  • 18
    Electronic Resource
    Electronic Resource
    Myelinated Herring bodies in the posterior part of the median eminence of the mouse (1981)
    Springer
    Cell & tissue research 219 (1981), S. 209-211 
    Details
    ISSN: 1432-0878
    Keywords: Herring bodies ; Median eminence ; Myelinated axons ; Mouse ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The posterior part of the median eminence of the albino mouse (CF # 1-JCL) contains a cluster of myelinated axons beneath the tanycyte layer. Among them, small Herring bodies surrounded by myelin sheaths are revealed by electron microscopy. These structures contain electron-dense bodies, lamellar bodies, autophagic bodies, autophagic vacuoles, and neurofilaments. A few neurosecretory granules and mitochondria are also present. Some myelinated axons contain mostly accumulated neurosecretory granules.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00210029
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  • 19
    Electronic Resource
    Electronic Resource
    Barrier-type anodic films on aluminium in aqueous borate solutions: 2 - Film compositions by Rutherford backscattering spectroscopy and nuclear reaction methods (1983)
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 5 (1983), S. 252-263 
    Details
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Compositions and elemental distributions of anodic films formed on aluminium in aqueous borate electrolytes have been investigated by Rutherford backscattering spectroscopy (RBS) and associated nuclear reaction methods, together with controlled crystallization of film sections in the transmission electron microscope (TEM). Films were found to consist principally of Al2O3; the outer regions of the films were contaminated with boron and, for all cases studied, the inner regions were boron-free. In the absence of film dissolution the contaminated region represented approximately 40% of the film thickness, and this proportion did not vary significantly with changes in current density of film formation. The outer region contained about 1.5 wt% boron, probably as B2O3, and the densities of the inner and outer regions were similar to an accuracy of about 10%.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/sia.740050606
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  • 20
    Electronic Resource
    Electronic Resource
    Barrier-Type anodic films on aluminium in aqueous borate solutions: 1 - Film density and stopping power of anodic alumina films for alpha particles (1983)
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 5 (1983), S. 247-251 
    Details
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Stopping powers of an anodic film, formed on aluminium in aqueous ammonium pentaborate solution, have been measured experimentally for α particles, over the energy range 0.7-2.3 MeV. Comparison between the measured stopping powers and theoretically calculated values shows that Bragg's Rule may be applied, with reasonable accuracy (∼5%), to predict the stopping powers of anodic alumina. The density of the barrier-type film was determined by Rutherford backscattering spectroscopy to be 3.10±0.15 × 103 kg m-3.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/sia.740050605
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