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  • 1
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of applied electrochemistry 4 (1974), S. 69-73 
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The electrochemical removal of Antimony from 1m sulphuric acid in a restrained bed reactor was studied in terms of current, flow velocity, bed depth, bead size and pressure drop. Current efficiencies are quoted as a function of current density and information is given so that they may be calculated in terms of the above variables. Experimentally-obtained limiting current densities are compared with calculated values, using empirical formulae from the literature.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of applied electrochemistry 4 (1974), S. 173-190 
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Electrochemical cells, designed to operate with reactants at low concentrations, require special provisions to be made for enhancement of mass transport of the reactants to the electrode surface. The different concepts for doing this in industrial or large-scale cells are reviewed. Examples are given of cells and processes in which these ideas have been used. A comprehensive literature survey of the quantitative relationships pertaining to the different configurations is given. The various cell designs are compared on a quantitative basis, usingi lim, and some advantages and disadvantages are discussed.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of applied electrochemistry 1 (1971), S. 41-44 
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of applied electrochemistry 2 (1972), S. 275-281 
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Experimental data relating to the performance of a fast flow parallel plate electrochemical reactor are reported, using very dilute reactant solutions. The results are shown to conform to the Chilton-Colburn analogy. The significance of such reactors, in terms of both electrochemical processing and treatment of dilute aqueous effluents, is discussed.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of applied electrochemistry 2 (1972), S. 283-287 
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The efficiency of chlorine evolution from dilute brines (0.5–0.1m) was studied on RuO2 and IrO2 coated Ti anodes at 20°C and 70°C. Efficiencies are generally much higher than on graphite electrodes. However at low current densities at 70°C the efficiency on RuO2 is considerably lower than on IrO2.
    Type of Medium: Electronic Resource
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  • 7
    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
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  • 8
    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
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 69 (1999), S. 373-377 
    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
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  • 10
    ISSN: 1432-1173
    Keywords: Schlüsselwörter Kollagenose ; Lupus erythematodes profundus ; Periorbitales Ödem ; Key words Collagenosis ; Lupus panniculitis ; Periorbital edema
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Periorbital edema may occur initially or in the course of a wide variety of diseases. One of these diseases is lupus panniculitis, a variant of lupus erythematosus, characterized by firm subcutaneous nodules that may ulcerate with subsequent scar formation. We present a case of lupus panniculitis in which the periorbital edema was the initial manifestation. Knowledge about the differential diagnostic possibilities of periorbital edema as well as the different variants of cutaneous lupus erythematosus is important to reach the correct diagnosis.
    Notes: Zusammenfassung Das periorbitale Ödem ist ein Symptom, das initial oder im Verlauf von Erkrankungen verschiedenster Genese auftreten kann. Eine mögliche Assoziation stellt der Lupus erythematodes profundus dar. Diese Krankheit ist durch subkutane knotige und plattenartige Infiltrate gekennzeichnet, welche zu Ulzerationen und narbigen Einziehungen führen können. Anhand eines Fallberichts wird aufgezeigt, daß ein periorbitales Ödem als Initialsymptom den typischen Hautveränderungen eines Lupus erythematodes profundus vorausgehen kann. Die Kenntnis der möglichen Differentialdiagnosen bei periorbitalem Ödem sowie der unterschiedlichen Varianten eines Lupus erythematodes ist für die Diagnosestellung von entscheidender Bedeutung.
    Type of Medium: Electronic Resource
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