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  • 1
    Electronic Resource
    Electronic Resource
    Muon capture in deuterium and the meson exchange current effect
    Amsterdam : Elsevier
    Nuclear Physics, Section A 507 (1990), S. 675-697 
    Details
    ISSN: 0375-9474
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9474(90)90175-L
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Image Processing Applied to Brick Quality Control (2000)
    Springer
    The international journal of advanced manufacturing technology 16 (2000), S. 434-440 
    Details
    ISSN: 1433-3015
    Keywords: Keywords:Bricks; Colour measurement; Image processing; Manufacturing; Quality control; Process control
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The results from an investigation into the feasibility of using image processing in the quality control system at a particular brickworks is reported. Methods were developed that allowed the identification and measurement of cracks and surface inden-tations and protrusions, and the measurement of the area of uniform pink on the surface of the particular brick type considered. It is concluded that the methods used could be developed relatively easily into a commercial real-time quality control system, which could result in considerable cost savings. It is also concluded that quality control measurements additional to those considered could easily be incorporated into such a system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001700050175
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Deuteron photodisintegration with the Bonn OBE potentials (1989)
    Springer
    Few body systems 7 (1989), S. 95-117 
    Details
    ISSN: 1432-5411
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The various OBE approximations to the recent Bonn potential are studied in deuteron photodisintegration below π-threshold. Consistent static meson-exchange currents, isobar currents, and the relativistic spin-orbit current are included. Concerning the OBEPT also the leading retardation corrections in the currents are taken into account. Comparison with experimental data is carried out in detail.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01087390
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Meson-retardation effects in deuteron photodisintegration below π-threshold (1989)
    Springer
    Few body systems 6 (1989), S. 117-150 
    Details
    ISSN: 1432-5411
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Mesor-retardation effects in photodisintegration of the deuteron below pion threshold are studied by constructing retarded one-boson-exchange potentials using time-dependent non-covariant perturbation theory. The corresponding retarded meson-exchange currents including retarded vertex currents are derived analogously by gauge-invariant minimal coupling. It is found that retardation effects in the wave functions and in the electromagnetic currents as well have a significant influence on total and differential cross sections.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01089915
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Survey on polarization observables in deuteron photodisintegration below pion-production threshold (1991)
    Springer
    Few body systems 11 (1991), S. 33-72 
    Details
    ISSN: 1432-5411
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Polarization observables of deuteron photodisintegration with polarized photons and oriented deuterons are systematically investigated below π-production threshold with respect to their sensitivity to subnuclear degrees of freedom and relativistic effects, to the different electric and magnetic multipole contributions, and to various realistic potential models. In particular, a complete survey on all single- and double-polarization observables like beam and target asymmetries of the differential cross section, nucleon polarization and proton-neutron spin correlation is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01075712
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Deuteron photodisintegration at low energies (1991)
    Springer
    Few body systems 10 (1991), S. 105-133 
    Details
    ISSN: 1432-5411
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract All presently available experimental data on deuteron photodisintegration below 40 MeV (i.e., total and differential cross sections, photon asymmetry and neutron polarization) are collected and carefully compared with the present status of the conventional theory (i.e., in the framework of mesontheoretical or semi-phenomenologicalN-N potentials including subnuclear degrees of freedom and relativistic corrections). No significant evidence for a failure of the conventional theory is found within the present experimental accuracy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01083045
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  • 7
    Electronic Resource
    Electronic Resource
    Heavy-mesons exchange and the backward deuteron electrodisintegration (1992)
    Springer
    Few body systems 11 (1992), S. 155-170 
    Details
    ISSN: 1432-5411
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Backward electrodisintegration of the deuteron is calculated using an exchange-current operator containing π, η, ρ, ω, δ, σ, andA 1 exchanges. The deuteron and1S0 np wave functions are derived from the Bonn OBEPs. For completeness, we introduced theA 1-meson exchange into the OBEP's as well. As a consequence, the value ofD-state probabilityP D is increased by 0.2%–0.8%. The computed cross sections are compared with new data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01641820
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Relations between polarization observables and complete sets for deuteron photodisintegration (1990)
    Springer
    Few body systems 8 (1990), S. 77-93 
    Details
    ISSN: 1432-5411
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The polarization observables for deuteron photodisintegration are given as Hermitean forms of theT-matrix elementst i . By inversion we are able to express a given productt i * t j in terms of polarization observables. This allows (i) to derive linear relations between observables for unpolarized, circularly and linearly polarized photons, (ii) to construct explicitly complete sets of polarization observables, and (iii) to derive quadratic relations between observables.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01078062
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Integrated photoabsorption strength and sum rules for a bound Dirac particle (1985)
    Springer
    The European physical journal 320 (1985), S. 311-319 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Relativistic effects in the integrated total photoabsorption cross section are discussed using a simple model of a Dirac particle bound in a central potential of scalar or vector type. The integrated strength is calculated explicitly and compared to a new relativistic extension of the TRK-sum rule using positive energy projection and to predictions from dispersion relations. M1 and E2 sum rules are also considered. In all cases the integrated strength exceeds the classical sum rule up to a few percent. The dispersion sum rule cannot be compared directly to the integrated strength since it contains a negative contribution from pair production in the potential field which is of the order of a few percent. Whereas the total M1-strength is strongly underestimated by the lowest order M1-sum rule, the total E2-strength is reasonably well reproduced up to about 10% by the lowest order E2-sum rule.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01881281
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    Paper (German National Licenses)
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