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  • 1980-1984  (13)
  • 1925-1929  (4)
  • 1
    Digitale Medien
    Digitale Medien
    Refinement of the 3R γ-indium monoselenide structure type (1980)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 36 (1980), S. 916-918 
    Details
    ISSN: 1600-5740
    Quelle: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Thema: Chemie und Pharmazie , Geologie und Paläontologie , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1107/S0567740880004840
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  • 2
    Digitale Medien
    Digitale Medien
    PROTOTROPHIC GROWTH ON CITRATE AND REGULATION OF CITRATE LYASE IN THREE STRAINS OF RHODOPSEUDOMONAS PALUSTRIS (1980)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 7 (1980), S. 0 
    Details
    ISSN: 1574-6968
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1574-6941.1980.tb01631.x
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  • 3
    Digitale Medien
    Digitale Medien
    Electrical leakage currents in bipolar cell stacks (1980)
    Springer
    Journal of applied electrochemistry 10 (1980), S. 233-237 
    Details
    ISSN: 1572-8838
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: Abstract A brief review of the origins of bipolar leakage currents, the means used for its measurement and calculation and the importance of minimizing the phenomenon, is followed by a novel means of computing leakage currents more accurately than hitherto possible, using a commercially available simulation program. This has the further advantage that the reali-V characteristics of an electrochemical cell can be used, there being no need to represent the cell itself as a zener diode which is a poor representation of reali-V cell characteristics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00726091
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  • 4
    Digitale Medien
    Digitale Medien
    The role of surface texture and anode-cathode size ratios on mass transfer in undivided electrochemical reactors (1980)
    Springer
    Journal of applied electrochemistry 10 (1980), S. 635-647 
    Details
    ISSN: 1572-8838
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: Abstract The performance of undivided cells with disparate anode-cathode ratios was studied using cerium (IV) reduction as a test reaction. The effects of electrode material and surface texture are reported. Results have been fitted to a computer-based model, and the role of bubble evolution and electrode coverage by bubbles is considered. Results are contrasted with those of a similar study using hypochlorite formation, which can give qualitatively different results.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00615487
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  • 5
    Digitale Medien
    Digitale Medien
    Formation of sorbitol by cathodic reduction of glucose (1981)
    Springer
    Journal of applied electrochemistry 11 (1981), S. 261-267 
    Details
    ISSN: 1572-8838
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: Abstract The steady-state formation of sorbitol by cathodic reduction of glucose was studied in a parallel-plate reactor of 200 cm2 electrode area. Earlier work was extended to explore the effect of flow rate, pH and current density. The effect of temperature between 20° and 47° C and the use of amalgamated lead as compared with chemical lead and other metals is discussed. It is shown that addition of Zn2+ ions accelerates the reaction and the reasons for this are discussed. The implications for industrial application are considered.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00610988
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  • 6
    Digitale Medien
    Digitale Medien
    pH changes at near-electrode surfaces (1983)
    Springer
    Journal of applied electrochemistry 13 (1983), S. 189-207 
    Details
    ISSN: 1572-8838
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: Abstract Anodic or cathodic processes in which protons are released or consumed, respectively, lead to local pH changes at the electrode surface. The phenomenon is important in several branches of metal finishing, in corrosion, electro-organic synthesis and other branches of applied electrochemistry, as well as being a factor which can invalidate mechanistic investigations. The concept of ‘pHs’ (near-surface pH) is examined, as are the experimental techniques which have been used to measure it. Many of these are inherently weak. Published results are shown to be largely discrepant, both in respect of the magnitude of the effect and even its incidence. Attempts to treat the phenomenon theoretically are briefly summarized.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00612481
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  • 7
    Digitale Medien
    Digitale Medien
    The electrodeposition of copper-silver and copper-nickel alloy powders from aqueous ammoniacal solutions (1984)
    Springer
    Journal of applied electrochemistry 14 (1984), S. 605-613 
    Details
    ISSN: 1572-8838
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: Abstract The electrodeposition of copper-silver and copper-nickel powders from aqueous ammoniacal solutions at a continuously scraped rotating cylinder cathode is described. Ag-Cu powders can be prepared under these conditions, but the individual particles are inhomogeneous and the extent of this inhomogeneity is examined. Surface areas (from BET) and particle size distributions are reported, and the morphology is considered. Cu-Ni powders deposited under these conditions are heavily contaminated with oxide/ hydroxides and this is attributed to an increase in near-cathode pH.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00626304
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  • 8
    Digitale Medien
    Digitale Medien
    Die bei beginnender Fleischfäulnis auftretenden chemischen und physiko-chemischen Veränderungen (1927)
    Springer
    European food research and technology 53 (1927), S. 44-64 
    Details
    ISSN: 1438-2385
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01653867
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  • 9
    Digitale Medien
    Digitale Medien
    Different sensitivities of prostaglandin-cyclooxygenases in blood platelets and coronary arteries against non-steroidal antiinflammatory drugs (1980)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 313 (1980), S. 69-75 
    Details
    ISSN: 1432-1912
    Schlagwort(e): Thromboxane A2 (TXA2) ; Prostacyclin (PGI2) ; Human platelets ; Bovine coronary artery ; Non-steroidal antiinflammatory drugs ; Prostaglandin-cyclooxygenase ; Bioassay ; RCS
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The action of the non-steroidal antiinflammatory drugs indomethacin, tiaprofenic acid, diclofenac and meclofenamate on vascular and plateletcyclooxygenases was studied by measuring the arachidonic acid-induced thromboxane A2 (TXA2)-formation of washed human platelets and prostacyclin (PGI2)-formation of bovine coronary artery rings. TXA2 was bioassayed as RCS on rabbit aorta strips, PGI2 in terms of its antiaggregatory activity on ADP-induced aggregation of human platelet-rich plasma. All of the substances studied produced concentration-dependent inhibition of PGI2- and RCS-release. The IC50 [μM] in inhibition of RCS-formation was 0.019 for indomethacin, 0.070 for tiaprofenic acid but 44.9 for meclofenamate and 63.2 for diclofenac. The IC50 [μM] in inhibition of PGI2-release was 0.42 for diclofenac, 0.63 for indomethacin and 0.99 for tiaprofenic acid. The data suggest (1) high sensitivity of human platelet-cyclooxygenase against indomethacin and tiaprofenic acid, (2) different sequence of the substances studied in inhibiting arachidonic acid-induced TXA2- and PGI2-formation. The possible therapeutic value of selective inhibition of platelets and vascular cyclooxygenases in discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00505806
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  • 10
    Digitale Medien
    Digitale Medien
    Some further factors affecting the solubility of silicate cements (1983)
    Springer
    Journal of materials science 2 (1983), S. 191-194 
    Details
    ISSN: 1573-4811
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00725616
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