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  • 1995-1999  (3)
  • 1985-1989  (3)
  • 1975-1979  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Magnetic properties of Nd8Fe77Co5B6CuNb3 melt-spun ribbons : The 7th joint MMM-intermag conference on magnetism and magnetic materials (1998)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 83 (1998), S. 6628-6630 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Nd8Fe77Co5B6CuNb3 amorphous ribbons were obtained by the melt spinning method using a large range of the wheel circumferential speed (18–40 m/s). For 10 min time of heat treatment at 700 °C the following values of the magnetic characteristics were achieved: Hc=3.95 kOe, Br=11.25 kG, and (BH)max=15 MGOe. The 13% increase of the remanent ratio Mr/M1.5 T by applying a magnetic field during annealing suggests an improvement of the exchange coupling effect. The Curie temperature of both hard and soft magnetic component phases increases with about 50 °C due to the Co content but it is not affected by the magnetic field annealing. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.367928
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  • 2
    Electronic Resource
    Electronic Resource
    Resonant Raman scattering in O2 (1997)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 107 (1997), S. 7057-7066 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Raman scattering of molecular oxygen in the region of the Schumann–Runge absorption band system is calculated from first principles in the second order of perturbation theory in the interaction of photon–electron operator. Quantitative predictions are given for the cross sections for scattering of photons and a detailed comparison is made with available measurements. The behavior of Raman spectra near the predissociating rovibronic level (v′=5,N′) in the B 3Σu− electronic state of O2 is investigated and shown to have significant dependence on the detuning of the incident laser frequency. By casting the Raman transition matrix in a form similar to the Fano formalism, we are able to investigate the nature of the resonant and nonresonant scattering in the language of configuration interaction. By varying the predissociating width of the (v′=5,N′) resonance, we make a comparison with an earlier time-dependent wave-packet analysis. We also calculate the depolarization ratio of the scattered photons parallel and perpendicular to the polarization of the incident laser beam for the different Raman branches for lines terminating in the v′′=1 and v′′=6 levels and comment on the relationship between resonant Raman scattering and fluorescence emission. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.474948
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  • 3
    Electronic Resource
    Electronic Resource
    Analytische Berechnung magnetischer Konfigurationen mit starr magnetisierten Permanentmagneten und begrenzt permeablem Eisen (1979)
    Springer
    Electrical engineering 61 (1979), S. 259-277 
    Details
    ISSN: 1432-0487
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Description / Table of Contents: Contents For the analytic solution of magnetic field problems with permanent magnets and ferromagnetic materials one usually assumes and infinite realtive permeability of the iron parts. In case magnetic materials with a low permeability or saturated iron parts are contained in the configuration, the application of such simplified models may result in significant errors when calculating the field variables and particularly the magnetic forces. For two magnetic configurations of the above type being frequently met in reality an exact analytic solution of the bounj dary problem is derived and the influence of different parameters on the magnetic field variables assessed. Furthermore, a simple “magnetic charge model” is constructed, wich can easily be used to analyse more complex magnetic configurations.
    Notes: Übersicht Bei der analytischen Behandlung der Magnetfelder von Dauermagneten in Anwesenheit von ferromagnetischen Stoffen wird üblicherweise angenommen, daß die relative Permeabilität der Eisenteile unendlich groß ist. Sind Magnetwerkstoffe mit geringer Permeabilität oder gesättigte Eisenteile im Magnetsystem enthalten, lassen sich bei Anwendung solcher vereinfachter Rechenmodelle u. U. erhebliche Fehler bei der Bestimmung der Feldgrößen und vor allem der Magnetkräfte nicht vermeiden. Für zwei in der Praxis oft vorkommende Magnetkonfigurationen mit “starren” Dauermagneten und begrenzt permeablem Eisen wird eine analytisch exakte Lösung des Randwertproblems angegeben und die Abhängigkeit der Magnetfeldgrößen von verschiedenen Parametern untersucht. Es wird außerdem ein einfaches “magnetladungsmodell” aufgestellt, das zur bequemen Behandlung komplizierterer Magnetsysteme angewendet werden kann.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01579192
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  • 4
    Electronic Resource
    Electronic Resource
    Use of skirrow medium with membrane filters for selective isolation ofCampylobacter jejuni from stools (1986)
    Springer
    European journal of clinical microbiology & infectious diseases 5 (1986), S. 369-369 
    Details
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02017804
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  • 5
    Electronic Resource
    Electronic Resource
    A study of the interaction of natural polymers — surfactants I. International of catalase (EC 1.11.1.6) with ionic surfactants (1976)
    Springer
    Colloid & polymer science 254 (1976), S. 55-63 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Die Interaktion der Katalase mit anionischen (Natriumlaurinat und Natriumdodezylsulfat) und kationischen (Dodezylpyrimidiniumchlorid) Tensiden wurde untersucht, indem die Variation der Viskosität, der elektrischen Leitfähigkeit, der Enzymaktivität und-kinetik in Abhängigkeit von der Tensidkonzentration beobachtet wurden. Gegenseitig sich bekräftigende Angaben weisen auf das Vorhandensein von Interaktionen zwischen Katalase und den untersuchten anionischen Tensiden hin. Die Ergebnisse wurden unter Annahme nichtpolarer Interaktionen und unter Berücksichtigung der physiko-chemischen Eigenschaften der Tenside in Wasserlösungen sowie der Struktur Katalase-ähnlicher Haem-Proteine (Hämoglobin) gedeutet.
    Notes: Summary Catalase interaction with anionic type (sodium laurate and sodium dodecylsulfate) and cationic type (dodecylpyrimidinium chloride) surfactants was investigated. Viscosity, electric conductivity, enzyme activity and kinetics depend on surfactant concentration. Corroborating data demonstrate the existence of interaction between catalase and anionic surfactants. Results were interpreted in the terms of non-polar interactions, taking into account both the physicochemical properties of surfactants in aqueous solutions and the better known structure of haemic proteins (haemoglobin) similar to catalase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01526742
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  • 6
    Electronic Resource
    Electronic Resource
    Inelastic excitation and nucleon transfer in quasielastic reactions between86Kr and208Pb at 18.2 MeV/u beam energy (1987)
    Springer
    The European physical journal 328 (1987), S. 205-217 
    Details
    ISSN: 1434-601X
    Keywords: 25.70.B ; 25.70.D
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Angular distributions for inelastic scattering, for 1 and 2-nucleon transfer reactions were studied at 18.2 MeV/u beam energy. Owing to sequential decay of excited reaction products the nuclide yield measured at various angles and in different regions of total kinetic energy loss (TKEL) does not represent the yield of primordial nuclides A Z. Monte Carlo calculations were applied in order to reconstruct the primary double-differential cross-sections d2σ/dΩdTKEL for values of TKEL up to 80 MeV. By comparing the probability of inelastic scattering and that of transfer reactions it is found that the former dominates for TKEL〈 10 MeV, whereas the situation is reversed above 20 MeV. No evidence is found for the excitation of giant resonances with significant cross section.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01290663
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  • 7
    Electronic Resource
    Electronic Resource
    High frequency of isolation ofCampylobacter coli from poultry meat in France (1987)
    Springer
    European journal of clinical microbiology & infectious diseases 6 (1987), S. 693-695 
    Details
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02013078
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  • 8
    Electronic Resource
    Electronic Resource
    Analytical interaction potentials of the long range alkali-metal dimers (1996)
    Springer
    The European physical journal 36 (1996), S. 239-248 
    Details
    ISSN: 1434-6079
    Keywords: 34.20.Cf ; 31.15. − p ; 33.90. + h
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using almost degenerate perturbation theory the calculation of long range limits of alkali-metal dimer molecular states which dissociate to the atom pairs S1/2-P1/2, 3/2 and S1/2-D3/2, 5/2 is presented. Hund's coupling casec is adopted. The calculation includes correlations up to the second order of perturbation theory and exchange energy contributions. The results are expressed in a simple analytical form in terms of dispersion coefficients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426409
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