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  • Springer  (240)
  • American Association for the Advancement of Science  (24)
  • 1
    Electronic Resource
    Electronic Resource
    Physical and electrochemical characteristics of nickel hydroxide as a positive material for rechargeable alkaline batteries (1995)
    Springer
    Journal of applied electrochemistry 25 (1995), S. 219-226 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Nickel hydroxide is widely used as an active material in pasted-type nickel electrodes. Physical properties of several nickel hydroxide powders have been examined by laser diffraction, BET, X-ray diffraction, thermal analysis and SEM. Nickel hydroxide powder with a smaller crystalline size shows better charge-discharge cyclic characteristics. The chemical diffusion coefficients of the proton in the nickel hydroxide sample are measured by a current pulse relaxation method. Nickel hydroxide with a smaller crystalline size shows a higher proton diffusion coefficient, giving excellent cycling behaviour.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00262959
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  • 2
    Electronic Resource
    Electronic Resource
    Pharmacological studies on thiamine deficiency IV. Blood catecholamine content and blood pressure of thiamine deficient rats (1969)
    Springer
    Cellular and molecular life sciences 25 (1969), S. 283-284 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Wegen der Senkung des Blut-Katecholamin-Spiegels in unter experimentell erzeugtem Thiaminmangel stehenden Ratten kommt es zu einer Hypotonie. Die Abschwächung der spontanen Freisetzung des Katecholamins aus dem katecholaminspeichernden Gewebe bei Thiaminmangelratten ist als ein Faktor bei der Aminakkumulation bei Thiaminmangel zu denken.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02034395
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  • 3
    Electronic Resource
    Electronic Resource
    The effects of reticular stimulation on digastric reflex activity during sleep and wakefulness (1974)
    Springer
    Cellular and molecular life sciences 30 (1974), S. 52-53 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé La stimulation électrique de la formation réticulaire mésencéphalique fut appliquée 0–20 msec avant l'induction du réflexe digastrique chez des chats libres. Le reflexe digastrique fut induit par stimulation électrique du nerf dentaire inférieur. La stimulation réticulaire eut pour résultat l'inhibition de ce réflexe pendant la veille, le sommeil tranquille et le sommeil actif.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01921592
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  • 4
    Electronic Resource
    Electronic Resource
    The dynamics of CO oxidation on Pt(110) studied by infrared chemiluminescence of the product CO2: effect of CO coverage (1997)
    Springer
    Catalysis letters 47 (1997), S. 17-20 
    Details
    ISSN: 1572-879X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The infrared chemiluminescence technique has been applied to the catalytic oxidation of CO on a Pt(110)(1×2) surface. The vibrational and the rotational states of CO2 formed on the reconstructed Pt(110)(1×2) surface are more excited than those on the terrace Pt(111) surface. The vibrational state of the product CO2 strongly depends on the CO coverage: the vibrational temperature (TV) of the product CO2 becomes higher, as the coverage of CO increases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019072030382
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  • 5
    Electronic Resource
    Electronic Resource
    A novel fabrication method for stoichiometric strontium bismuth tantalate thin films for memory devices (2000)
    Springer
    Applied physics 70 (2000), S. 243-246 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 81.20.F; 77.84.D; 77.55
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. A novel method of processing ferroelectric thin films to eliminate excess bismuth is reported. Rapid thermal annealing initiates the crystallization of bismuth layer- structured ferroelectric thin films. Subsequent crystallization annealing for longer periods improves the crystallinity of the thin films. During annealing bismuth is known to diffuse to the surface and into the electrode, which is deleterious to the device performance. Forming-gas annealing after the rapid thermal annealing (prior to the crystallization annealing) reduces the bismuth diffusion into the electrode significantly. The suppression of bismuth diffusion into the electrode and the elimination of excess bismuth in the films improves and stabilizes the electrical properties of the capacitors, in particular their electronic conduction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050042
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  • 6
    Electronic Resource
    Electronic Resource
    Modeling of vaporization processes of resonant laser ablation (1999)
    Springer
    Applied physics 69 (1999), S. S845 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 61.80.Ba; 32.80.Rm; 07.75.+h
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. Resonant laser ablation (RLA), which combines laser ablation (vaporization) and resonance ionization spectroscopy simultaneously with a single laser, can be used as a simple analytic technique of trace elements with high sensitivity and elemental (isotopic) selectivity for solid samples. To predict typical RLA phenomena for metal samples, in particular the dependence of its sensitivity and selectivity on the incident laser power, we propose a theoretical model coupling the vaporization and ionization processes on the sample surface. In the vaporization process, the particle flux balance is calculated between the vapor and solid phases of sample materials through the ablated sample surface, and then the ionization probability in the net particle flux is estimated as two components from the resonant and non-resonant (or thermal) ionization processes. In comparison with some basic experiments, the present model calculation gives comparatively good agreement with resonant and non-resonant ion yields near the threshold laser power of laser ablation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390051544
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  • 7
    Electronic Resource
    Electronic Resource
    Guided waves and IR lasers (1982)
    Springer
    Applied physics 28 (1982), S. 283-289 
    Details
    ISSN: 1432-0649
    Keywords: 85.60 ; 42.80 ; 42.55 ; 33
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00697857
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  • 8
    Electronic Resource
    Electronic Resource
    Ruthenium oxide and strontium ruthenate electrodes for ferroelectric thin-films capacitors (2000)
    Springer
    Applied physics 70 (2000), S. 239-242 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 77.90.+k; 79.70.-i; 82.65-i
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. Metallic ruthenium and ruthenium oxides, such as SrRuO3 and RuO2, are potential electrode materials for ferroelectric capacitors. The electrical properties (e.g. leakage currents) of such thin film devices are dependent on the electronic properties of the electrode/ferroelectric junctions and therefore also on the electrode work functions. During growth and processing of film–electrode layer structures the formation of sub-oxides within the electrode is possible, with their work functions being unknown. In order to obtain information for predicting device properties, we have systematically analysed the valence bands and work functions of RuOx and SrRuOy thin films with different oxidation states by using photoelectron spectroscopy techniques. The results suggest that Ru0 and Ru4+ ions are present in co-existence at the surfaces of oxygen-deficient polycrystalline films (inhomogeneous oxidation). For both oxygen-deficient materials the work function coincides with that of metallic ruthenium (4.6±0.1 eV). Only for fully oxidised ruthenium oxide and strontium ruthenate films (no Ru0 present at the surface) is the work function increased to 5.0 or 4.9 eV, respectively. As an example of importance for new dynamic random access memory applications, the junctions of Ba1-xSrxTiO3 with SrRuOy and RuOx are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050041
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  • 9
    Electronic Resource
    Electronic Resource
    Estimate of the source of soil protease in upland fields (1994)
    Springer
    Biology and fertility of soils 18 (1994), S. 341-346 
    Details
    ISSN: 1432-0789
    Keywords: Soil protease ; Andosol ; Gray Lowland soil ; Bacillus spp ; Proteolytic bacteria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Selective inhibition of bacterial or fungal growth in remoistened, oven-dried, inoculated Andosols indicated that bacteria were a more important source of benzyloxycarbonyl-l-phenylalanyl-l-leucine hydrolyzing activity (z-FLase) and casein-hydrolyzing activity (caseinase) than fungi. The same test indicated that bacteria were also a more important source of soil caseinase under upland conditions in a Gray Lowland soil. Most of the proteolytic bacteria isolated from the three upland fields by azocoll agar plates (Andosol upland field, 100%; Andosol uncultivated field, 96.4%; Gray Lowland upland field, 70.0%) wereBacillus spp. Most (100%, 97.1%, and 84.0%, respectively) of the gelatin liquefiers selected from the azocoll degraders, as those with high extracellular z-FLase and caseinase, were alsoBacillus spp. We conclude thatBacillus spp. are the major source of soil protease in the three upland fields studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00570638
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  • 10
    Electronic Resource
    Electronic Resource
    Reclamation of an activated-sludge microbial consortium by selective biostimulation (2000)
    Springer
    Applied microbiology and biotechnology 54 (2000), S. 719-723 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Our previous study showed that an activated-sludge process broke down at the phenol-loading rate of 1.5 g l−1 day−1, when non-flocculating bacteria (called R6T and R10) overgrew the sludge, resulting in a sludge washout. In this study, we attempted to circumvent this breakdown problem by reclaiming the consortium structure. Activated sludge was fed phenol, and the phenol-loading rate was increased stepwise from 0.5 g l−1 day−1 to 1.0 g l−1 day−1 and then to 1.5 g l−1 day−1. Either galactose or glucose (at 0.5 g l−1 day−1) was also supplied to the activated sludge from the phenol-loading rate of 1.0 g l−1 day−1. Pure culture experiments have suggested galactose to be a preferential substrate for a floc-forming bacterium (R6F) that predominantly degrades phenol under low phenol-loading conditions. Supplying galactose allowed sustainment of the R6F population and suppression of the overgrowth of R6T and R10 at the phenol-loading rate of 1.5 g l−1 day−1. This measure allowed the activated-sludge process to treat phenol at a phenol-loading rate up to 1.5 g l−1 day−1, although it broke down at 2.0 g l−1 day−1. In contrast, supplying glucose reduced the R6F population and allowed the activated-sludge process to break down at the phenol-loading rate of 1.0 g l−1 day−1. This study demonstrated that reclamation of the activated-sludge consortium by selective biostimulation of the floc-forming population improved the phenol-treating ability of the process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002530000424
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