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  • 1
    Call number: SR 90.0090(15)
    In: Veröffentlichungen des Geodätischen Instituts der Rheinisch-Westfälischen Technischen Hochschule Aachen
    Type of Medium: Series available for loan
    Pages: 72 S.
    Series Statement: Veröffentlichung des Geodätischen Instituts der Rheinisch-Westfälischen Technischen Hochschule Aachen 15
    Language: German
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 8 (1974), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The effect of glass cover plates on the distortion characteristics of aerial survey cameras is shown to be relatively small. This fact supports the use of glass cover plates at high altitudes, as does the possibility of estimating and determining with sufficient certainty the systematic effect to be expected. If a decision is made against the use of glass cover plates, the effect of a variety of factors such as turbulence and temperature differences within the lens and the camera can hardly be estimated.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 226 (1970), S. 849-850 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The virus isolation studies were conducted on 6 to 10 month old retired breeders from the production colonies of the Jackson Laboratory. They were housed, twenty-five to a cage, in stainless steel cages (12 24 6.5 inch), provided with white pine shavings and hardwood chips for bedding. The ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 16 (1973), S. 25-51 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Zusammenfassung Die magnetische Suszeptibilität von Legierungen der Übergangsmetalle Fe, Co und Ni mit den normalen Metallen Au, (Cu), Zn, Ga und Ge wurde im flüssigen Zustand über den ganzen Konzentrationsbereich gemessen. Alle diese Legierungssysteme haben so komplizierte Phasendiagramme, daß eine systematische Untersuchung über den ganzen Konzentrationsbereich im festen Zustand nicht möglich ist. Die Ergebnisse werden anhand der bestehenden Modelle für die übergangsmetallreiche Seite sowie für geringe Konzentrationen von Übergangsmetallen in Normalmetallen diskutiert. Es wird eine Verknüpfung der Suszeptibilität mit der Zustandsdichte für diese Legierungen gefunden und damit die Suszeptibilität im ganzen Konzentrationsbereich erklärt. Die Suszeptibilitätsmessungen erlauben es, Aussagen über die Form und Lage der Zustandsdichte beim Legieren zu machen.
    Notes: Abstract Investigations on the magnetic susceptibility of alloys of the transition metals Fe, Co and Ni with the normal metals Au, (Cu), Zn, Ga and Ge were performed in the liquid state over the whole concentration range. These alloys show complicated phase diagrams, so that in the solid state a systematic investigation over the whole concentration range is not possible. The results are discussed with the existing models for the transition metal rich side and for impurities of transition metal in normal metals. A connection between the susceptibility and the density of states has been found, which allows to explain the behaviour of the susceptibility over the whole concentration range. The measurements of the susceptibility give some information about shape and position of the density of states on alloying.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 27 (1971), S. 258-259 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Alle von uns in Mäusen untersuchten vererblichen neurologischen Erkrankungen stellen entweder primäre oder sekundäre gesamtkörperliche Prozesse dar. Verschiedene allelische Substitutionen produzieren spezifische Leber-Esterase-Isozym-Defekte.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 57 (1970), S. 248-249 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 57 (1970), S. 310-310 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 58 (1971), S. 456-457 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 58 (1971), S. 457-457 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary The high tension electrophoretic migration of the halogeno complexes of the platinum metals and several other inorganic ions was investigated with nitrilotriacetic acid and ethylenediaminetetraacetic acid as electrolytes in relation to the various experimental parameters (electrolyte concentration,ph-value, and amount of substance). The migration velocities of the various metal ions or complexes exhibit characteristic gradations that may be explained on the basis of the regularities that are valid for the high tension electrophoretic migration. Instances are: a decrease was observed in the mobility when chloride was replaced by bromide ions (mass effect), influence of different complexing of di- and trivalent ions that are related to changes in theph or electrolyte concentration, or influences of the changes due to hydrolysis in the composition of the ligands or alterations in the migration rates resulting from complexing with nitrolotriacetic acid or EDTA. The gradation of the mobility obtained under certain conditions are employed as the basis of a procedure for separating various mixtures, including also the chloro complexes of most of the platinum metals in the succession Ir 〉 Os ≈ Pt 〉 Rh ⩾ Pd 〉 Ru (〉 Rh). It has been found that NTE is better for separations than EDTA.
    Notes: Zusammenfassung Die hochspannungselektrophoretische Wanderung der Halogenokomplexe der Platinmetalle und einer Reihe weiterer anorganischer Ionen wird mit Nitrilotriessigsäure und Äthylendiamintetraessigsäure als Elektrolyt in Abhängigkeit von verschiedenen Versuchsparametern (Elektrolytkonzentration,ph-Wert und Substanzmenge) untersucht. Die Wanderungsgeschwindigkeiten der verschiedenen Metallionen bzw.-komplexe zeigen charakteristische Abstufungen, die sich mit den für die hochspannungselektrophoretische Wanderung gültigen Gesetzmäßigkeiten erklären lassen. Beispielsweise beobachtet man eine Abnahme der Beweglichkeit bei Ersatz von Chlorid- durch Bromidionen (Masseneinfluß), Auswirkungen der vomph bzw. der Elektrolytkonzentration abhängigen unterschiedlichen Komplexierungen zwei- und dreiwertiger Ionen, Einflüsse der auf Hydrolyse zurückgehenden Änderungen der Ligandenzusammensetzung sowie Unterschiede der Wanderungsgeschwindigkeiten als Folge der Komplexierung mit NTE oder AeDTE. Durch die unter bestimmten Bedingungen erreichbare Abstufung der Beweglichkeiten können verschiedene Gemische, unter anderem auch die Chlorokomplexe der meisten Platinmetalle in der Reihenfolge Ir 〉 Os ≈ ≈ Pt 〉 Rh ⩾ Pd 〉 Ru (〉 Rh), getrennt werden. NTE ist dabei für Trennungen besser als AeDTE geeignet.
    Type of Medium: Electronic Resource
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