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  • 1985-1989  (3)
  • 1975-1979  (2)
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  • 1
    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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    Paper (German National Licenses)
    Fulltext
  • 2
    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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    Paper (German National Licenses)
    Fulltext
  • 3
    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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    Paper (German National Licenses)
    Fulltext
  • 4
    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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    Paper (German National Licenses)
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  • 5
    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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    Paper (German National Licenses)
    Fulltext
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