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  • 1
    Electronic Resource
    Electronic Resource
    Atomic structure of the 2H GaS0.59Se0.41, β-type (1976)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 32 (1976), S. 1910-1911 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740876006687
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Refinement of the 2H GaS β-type (1976)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 32 (1976), S. 983-984 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740876004445
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  • 3
    Electronic Resource
    Electronic Resource
    Atomic structure of a 4H GaSe polytype named δ-type (1975)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 31 (1975), S. 2841-2842 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740875009016
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    The preparation and behaviour of magnetite anodes (1978)
    Springer
    Journal of applied electrochemistry 8 (1978), S. 327-332 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract A short review of the methods of preparation of magnetite anodes and the physico-chemical properties of Fe3O4 is followed by experimental results using chlorine evolution as a test reaction. Problems arising in the operation of composite magnetite-titanium structures are considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00612686
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  • 5
    Electronic Resource
    Electronic Resource
    The role of electrode structure and surface texture in the performance of gas evolving electrodes (1979)
    Springer
    Journal of applied electrochemistry 9 (1979), S. 765-775 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The literature on gas-evolving electrodes is reviewed. Cell voltage measurements are reported for an undivided cell in NaOH at 70° C in which the cathode was mild steel plate, mild steel mesh or composites of both these materials. The anode was Ni-plated mild steel sheet or mesh. Variation in the structure of one electrode, leaving the other unchanged allowed changes in overvoltage to be measured. It is shown that substantial voltage reductions can be obtained using multiplex electrode structures and that these are mainly explicable in terms of specific surface areas. Sheet electrodes are seen to be more efficient than mesh ones on this basis however. It is shown that sheet electrodes with very high specific surface areas show significantly higher overvoltages than electrodes of low specific area and this surprising result is interpreted in terms of bubble entrapment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614972
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  • 6
    Electronic Resource
    Electronic Resource
    A multi-purpose microprocessor-based electrochemical apparatus (1978)
    Springer
    Journal of applied electrochemistry 8 (1978), S. 437-443 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract A microprocessor-linked programmable calculator instrument is described. Current-voltage readings taken at predetermined intervals of time can be read, stored and passed to the calculator where they may be processed to yield Tafel slope data, ohmic drops, areas under curves (for cyclic voltammetry) or used in open-circuit decay calculations. The results may also be fed to a paper-tape punch for storage or graphplotting using a larger computer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00615839
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  • 7
    Electronic Resource
    Electronic Resource
    Current efficiency losses in indirect electrochemical processing (1979)
    Springer
    Journal of applied electrochemistry 9 (1979), S. 777-782 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The various reasons for current efficiency losses in indirect electrochemical processing are considered. Using the Cr(VI) oxidation ofo-toluene sulphonamide as a model, it is shown that accretion of organic residues is an important factor contributing to current efficiency losses. Other evidence is provided to suggest that film formation on the electrode surface acts selectively to promote oxygen evolution rather than Cr(III) re-oxidation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614973
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  • 8
    Electronic Resource
    Electronic Resource
    Experimentelle Rekonstruktion der Orbita beim Schaf mit biodegradablen Implantaten (1998)
    Springer
    Mund-, Kiefer- und Gesichtschirurgie 2 (1998), S. S117 
    Details
    ISSN: 1434-3940
    Keywords: Schlüsselwörter Orbitarekonstruktion ; Resorbierbare Implantate ; Polylaktat ; Key words Orbital reconstruction ; Biodegradable implants ; Polylactide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In a complex animal model in sheep, polydioxanone (PDS®) and polylactic membranes were used for the reconstruction of large orbital-wall defects. In a long-term experiment over 1 year, polylactic implants alone showed the best performance as compared with combinations involving autogenous bone grafts and titanium miniplate fixation. As soon as these polylactic implants are approved for human surgery, they will be used to solve the still challenging problem of anatomical reconstruction of large comminuted fractures of more than one orbital wall.
    Notes: Zusammenfassung In einem experimentellen Modell wurden biodegradierbare Membranen aus Polydioxanon (PDS ® ) resp. Polylaktat zur Rekonstruktion großer Orbitawanddefekte bei Schafen verwendet. Im Langzeitversuch über ein Jahr zeigten diejenigen Rekonstruktionen die besten Resultate, bei welchen ausschließlich biodegradierbare Implantate aus Polylaktat zur Anwendung kamen. Bei gleichzeitiger Verwendung von autologen Knochentransplantaten und Titan-Miniplatten-Osteosynthesen war die anatomische Form der rekonstruierten Orbita weniger zuverlässig gewährleistet. Es darf erwartet werden, dass die klinische Zulassung der Polylaktat-Implantate die chirurgische Wiederherstellung ausgedehnter Trümmerfrakturen mehrerer Orbitawände wesentlich erleichtern wird und zu vorhersehbaren, anatomischen Rekonstruktionen führt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00014455
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  • 9
    Electronic Resource
    Electronic Resource
    Free expansion of a Bose–Einstein condensate from an Ioffe–Pritchard magnetic trap (1998)
    Springer
    Applied physics 67 (1998), S. 719-722 
    Details
    ISSN: 1432-0649
    Keywords: PACS: 03.75.Fi; 05.30.Jp; 32.80.Pj
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: 5 rubidium-87 atoms released from an Ioffe–Pritchard magnetic trap is investigated experimentally. The expansion dynamics depend only on the trap frequencies, which are determined independently. The data are in good agreement with the expected expansion of a condensate, and are clearly distinct from the behaviour of a classical gas in the hydrodynamic regime.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003400050571
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  • 10
    Electronic Resource
    Electronic Resource
    Controlled generation of single photons from a strongly coupled atom-cavity system (1999)
    Springer
    Applied physics 69 (1999), S. 373-377 
    Details
    ISSN: 1432-0649
    Keywords: PACS: 32.80.Qk; 42.50.Ct; 42.65.Dr
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We propose a new method for the generation of single photons. Our scheme will lead to the emission of one photon into a single mode of the radiation field in response to a trigger event. This photon is emitted from an atom strongly coupled to a high-finesse optical cavity, and the trigger is a classical light pulse. The device combines cavity-QED with an adiabatic transfer technique. We simulate this process numerically and show that it is possible to control the temporal behaviour of the photon emission probability by the shape and the detuning of the trigger pulse. An extension of the scheme with a reloading mechanism will allow one to emit a bit-stream of photons at a given rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003400050822
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