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  • Articles  (45)
  • 1975-1979  (44)
  • 1950-1954  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Variation in the intensity distribution of the methylidyne and methylidyne-d (A2.DELTA.-X2.PI.) band rotational lines during fluorescence (1975)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 79 (1975), S. 2531-2535 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100590a017
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  • 2
    Electronic Resource
    Electronic Resource
    Quasielastic Light Scattering: An Experimental Study of Polydispersity (1978)
    s.l. : American Chemical Society
    Macromolecules 11 (1978), S. 452-454 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma60063a003
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  • 3
    Electronic Resource
    Electronic Resource
    Hf-sputtered indium oxide films doped with tin (1978)
    Springer
    Applied physics 16 (1978), S. 239-246 
    Details
    ISSN: 1432-0630
    Keywords: 72.40 ; 73
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Indium oxide films doped with tin (ITO-films) have been hf-sputtered from an 80 at-%In2O3/20 at-%SnO2 target onto glass substrates. The sputter atmosphere contained mainly argon (10−2Torr) with addition of oxygen (0≦p O 2≦2·10−2Torr). The sputtered films aren-conductors. The conductivity and density of charge carriers depend on the oxygen content of the sputter gas. They could be varied by two orders of magnitude. In air or in oxygen atmosphere the films oxidize at the surface and for a certain depth beneath the surface, thus decreasing the conductivity. The Hall mobility of the sputtered films is smaller (≈10 cm2V−1 s−1) than one observes at ITO films produced by CVD sparaying or other methods. The conductivity of as sputtered films approached maximum values of about 1000Ώ−1cm−1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00885119
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  • 4
    Electronic Resource
    Electronic Resource
    Sortenstand und Sortenbewegung im deutschen Obstbau (1952)
    Springer
    Theoretical and applied genetics 22 (1952), S. 374-374 
    Details
    ISSN: 1432-2242
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00710313
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  • 5
    Electronic Resource
    Electronic Resource
    Kompressionsverhalten isotroper Pulvermischungen (1979)
    Springer
    Pharmacy world & science 1 (1979), S. 1443-1450 
    Details
    ISSN: 1573-739X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Für die Kompressionsgleichung (s − a) (p + b) = C wurden die drei Hyperbelkonstanten a, b, und C interpretiert und ihre Abhängigkeit vom Mischungsverhältnis zweier Substanzen untersucht. Die Grö\e b wurde als Verformungsspannung bezeichnet, sie kann mit der Flie\grenze eines Materials in Beziehung gesetzt werden. In einer Tablettenrezeptur kann der Anteil an verformtem Arzneistoff mit Hilfe der Konstanten b abgeschätzt werden.
    Notes: Abstract The three hyperbolic constants a, b and C were interpreted for the compression equation (s − a) (p + b) = C. Their dependence upon the mixture ratio of two substances was investigated. The quantity b was designated as deformation strain, it can be related to the yield point of a material. The proportion of deformed drug in a tablet formulation can be estimated by means of the constant b.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02293483
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  • 6
    Electronic Resource
    Electronic Resource
    Wechselwirkungen zwischen Kriechverformung und HeißgaskorrosionVortrag, gehalten auf dem gemeinsam mit der DECHEMA veranstalteten Symposium der VDI-Gesellschaft Werkstofftechnik „Spannungs- und dehnungsinduzierte Korrosionsprozesse“ am 8. und 9. Juni 1978 in Baden-Baden (1978)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 29 (1978), S. 691-703 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Interactions between creep deformation and hot gas corrosionThe paper starts with a short explanation of the basic processes during the high temperature corrosion and of deformation under creep stress.Corrosion may give rise to an increase or a decrease of creep resistance, or it may result in an increase of the stress applied. The individual mechanisms are explained and, as far as possible, illustrated by examples. As a rule, however, several factors act simultaneously. The concerted actions is further complicated by back effects of a creep deformation on the corrosion processes. In the case of iron and nickel base alloys there exist obviously critical strain rates beyond which corrosion is enhanced and then proceeds more pronouncedly at the grain boundaries. It is also possible that then internal corrosion processes are triggered, in particular, in the grain boundary regions.While a qualitative assessment of the relationships between corrosion and creep deformation is possible, the feasibility of a quantitative description is still far away. As a rule, however, the aspect of a strength decrease will prevail although, in principle, corrosion may give rise to a strengthening, too.
    Notes: Einleitend werden kurz die Grundvorgänge der Heißgaskorrosion und der Verformung unter Zeitstandbeanspruchung erläutert.Die Korrosion kann den Kriechwiderstand erhöhen oder erniedrigen oder aber auch die anliegende Spannung vergrößern. Die einzelnen Mechanismen werden erläutert und - soweit möglich - durch Beispiele belegt. In der Regel wirken jedoch gleichzeitig mehrere Faktoren ein. Das Zusammenspiel wird durch Rückwirkungen der Kriechverformung auf die Korrosionsvorgänge weiter kompliziert. Für Eisen- und Nickelbasislegierungen gibt es offenbar kritische Dehngeschwindigkeiten, bei deren Überschreiten die Korrosion verstärkt und stärker korngrenzenorientiert abläuft. Auch innere Korrosionsvorgänge können dadurch besonders im Korngrenzenbereich ausgelöst werden.Während die Zusammenhänge zwischen Korrosion und Kriechverformung qualitativ überschaubar sind, liegt die Möglichkeit einer quantitativen Beschreibung noch in weiter Ferne. In der Regel werden die „Negativ-Punkte“ überwiegen, obgleich im Prinzip die Korrosion auch eine Verfestigung bewirken kann.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19780291103
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  • 7
    Electronic Resource
    Electronic Resource
    Zur Kenntnis von nur im festen Zustand existenzfähigen 1:1-Verbindungen zwischen Antimon(III)-Halogeniden und 1,3,5-Trithiacyclohexan (s-Trithian) (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 437 (1977), S. 149-154 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Characterization of Weak Bonded Solid 1:1 Adducts Formed between Antimony(III) Halogenides and s-TrithianeCrystalline 1:1 addition compounds are formed on cooling hot solutions of antimony(III) halides and s-trithiane in benzene or toluene. Their preparation, physical properties and vibrational spectra are described.
    Notes: Aus den Gemischen heißer Lösungen von s-Trithian und Antimon(III)-Halogeniden in Benzol oder Toluol kristallisieren beim Erkalten 1:1-Additionsverbindungen. Ihre Darstellung, physikalischen Eigenschaften und Schwingungsspektren werden beschrieben.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774370119
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  • 8
    Electronic Resource
    Electronic Resource
    Zum nukleophilen Abbau von Tris(pentasulfido)platinat(IV), [Pt(S5)3]2-, und Bis(pentasulfido)platinat(II),[Pt(S5)2]2- (1979)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 452 (1979), S. 112-122 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Nucleophilic Degradation of Tris(pentasulfido)platinum(IV), [Pt(S5)3]2-, and Bis(pentasulfido)platinum(II), [Pt(S5)2]2-The behaviour of [Pt(S5)3]2-, (I), towards sulfite, arsenite, sulfide, hydroxide, and triphenylphosphine has been studied qualitatively and quantitatively. With stoichiometric amounts of nucleophile one ring is degraded; the reaction product [Pt(S5)2]2-, (II), can be isolated. With excess of nucleophile all sulfur atoms are taken off from the platinum; with triphenylphosphine, however, (PPh3)2PtS4, (III), is formed. A mechanistic interpretation of the course of the reaction is given and supported by kinetic studies.
    Notes: Das Verhalten von [Pt(S5)3]2-, (I), gegenüber Sulfit, Arsenit, Sulfid, Hydroxid und Triphenylphosphin wird qualitativ und quantitativ untersucht. Mit stöchiometrischen Mengen an Nukleophil wird ein Ring abgebaut; als Reaktionsprodukt kann [Pt(S5)2]2-, (II), isoliert werden. Mit Überschuß an Nukleophil werden alle Schwefelatome vom Platin abgelöst; mit Triphenylphosphin entsteht dagegen (PPh3)2PtS4, (III). Der Reaktionsablauf wird mechanistisch gedeutet und durch kinetische Untersuchungen erhärtet.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19794520116
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  • 9
    Electronic Resource
    Electronic Resource
    Darstellung und Eigenschaften einiger Aus C—S-Sechs- bzw. -Achtringen gewonnener polymerer Verbindungen (1978)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 445 (1978), S. 175-183 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Properties of Some Polymeric Compounds, Formed from Sixmembered or Eightmembered C—S Ringss-Trithiane, substituted s-trithianes and s-tetrathiocanes, cyclooctasulfur and to some extent selenium can be polymerized together with s-tetrathiocane, if the molten mixtures are treated with a trace of borontrifluoride etharate. This leads to polymethylene sulfides, substituted polymethylene sulfides, polymethylene polysulfides and polymethylene sulfide selenides which melt mostly without decomposition.
    Notes: s-Trithian, monosubstituierte s-Trithiane und s-Tetrathiocane, Cyclooctaschwefel und in begrenztem Maße auch Selen können zusammen mit Tetrathiocan polymerisiert werden, wenn die geschmolzenen Gemische mit einer Spur Bortrifluoridetherat behandelt werden. Es entstehen dabei meist unzersetzt schmelzende Polymethylensulfide, substituierte Polymethylensulfide, Polymethylenpolysulfide und Polymethylensulfidselenide.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19784450122
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  • 10
    Electronic Resource
    Electronic Resource
    Additionsverbindungen zwischen Antimon(III)-Halogeniden und 1,4-Dithiacycloheptan (1979)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 454 (1979), S. 160-166 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Addition Compounds between Antimony(III)-Halides and 1,4-DithiacycloheptaneSbCl3, SbBr3, and SbI3 do form the addition compounds SbCl3 · 1,4-Dithiacycloheptane, SbBr3 · 1,4-Dithiaheptane and 2 SbI3 · 1,4-Dithiacycloheptane from benzene solutions. The new compounds are only stable in the solid form. FIR spectra of the SbCl3 and SbBr3 complexes are recorded as well as the X-ray structure of the SbCl3 compound.
    Notes: Aus benzolischen Lösungen von SbCl3, SbBr3 und SbI3 bilden sich mit 1,4-Dithiacycloheptan die nur in fester Form existenzfähigen Verbindungen SbCl3 · 1,4-Dithiacycloheptan, SbBr3 · 1,4-Dithiacycloheptan und 2 SbI3 · 1,4-Dithiacycloheptan. Die FIR-Spektren der SbCl3- und SbBr3-Addukte sowie die Röntgenstrukturanalyse der SbCl3-Verbindung werden mitgeteilt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19794540123
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