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  • 1
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Biochemistry 58 (1989), S. 799-839 
    ISSN: 0066-4154
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Chemistry and Pharmacology , Biology
    Type of Medium: Electronic Resource
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  • 2
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    Unknown
    London : Periodicals Archive Online (PAO)
    Journal of theological studies. n.s.:26 (1975) 139 
    ISSN: 0022-5185
    Topics: Theology and Religious Studies
    Notes: AUTHORS AND BOOKS REVIEWED OR NOTICED
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  • 3
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    New Testament studies 20 (1973), S. 92-100 
    ISSN: 0028-6885
    Source: Cambridge Journals Digital Archives
    Topics: Theology and Religious Studies
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Intensive care medicine 1 (1975), S. 163-173 
    ISSN: 1432-1238
    Keywords: 131Albumen ; External scintillation detection ; 133Xenon clearance ; Coronary artery clamping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract An index of myocardial blood flow developed from studies with a computer and a mechanical circulatory model has been investigated in 18 dogs. An intravenous injection of131I is used with external scintillation detection over the left ventricle and the lung. The index is given by the ratio of the half time of the downslope of the curve recorded from the left ventricle to that of the curve recorded from the lung. This index has been compared with that suggested by Mena et al in which the left ventricular half time is compared with the half time of the brain curve. The effect on these indices and on the clearance of133Xe of clamping the anterior descending branch of the left coronary artery has been observed. Statistically significant differences in both indices and in Xenon clearance were seen to be induced by coronary artery clamping but there was overlap between the clamped and unclamped values. The method used for coronary clamping also affected the results.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 29 (1994), S. 4866-4874 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Undoped and Nb-doped SrTiO3 specimens with excess titania compositions were prepared by sintering in air at 1420 or 1480 °C. Large grains due to liquid-phase sintering were obtained for undoped specimens containing ⩾ 0.6 mol % excess titania and fired at 1480 °C. On the other hand uniform fine grains were observed for samples fired at 1420 °C, resulting from grain-growth inhibition due to exsolved TiO2 second phase. The solubility of excess titania seemed less than 0.2 mol% under our experimental conditions. The microstructural behaviour of Nb-doped SrTiO3 could be explained well by the Sr-vacancy compensation model. According to this model, the solubility of excess titania in SrTiO3 increased with Nb2O5 dopant concentration. Thus, for specimens which had high excess titania compositions and were sintered at 1480 °C, large grains were observed when the Nb content was low enough to retain sufficient excess titania-forming liquid phase. For specimens having the same compositions and fired at 1420 °C, uniform fine grains were obtained due to grain growth inhibition by the exsolved TiO2 second phase, when the Nb content was low. If the excess titania was less than the solubility determined by the amount of Nb dopant, Ruddlesden-Popper-type phases were believed to be formed and resulted in poor densification. Although excess titania was the major factor in determining the grain size of the specimens, the niobium dopant enhanced grain growth.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Fire technology 22 (1986), S. 295-310 
    ISSN: 1572-8099
    Keywords: Smoke detector ; dwelling ; smoldering fire ; visibility ; escape
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Abstract Operation of domestic smoke detectors (photoelectric and ionization) has been investigated in a typical Melbourne dwelling using smoke from smoldering hardboard and artificial smoke generated at three widely different rates. Detector performance was assessed according to the escape time offered by its operation, this being based on the criterion of visibility needed to effect escape. Under these test conditions detectors located in bedrooms performed adequately only when smoke originated in the same room; they provided poor escape times for smoke originating elsewhere. Also, ionization detectors usually provided adequate escape times only when smoke travel from the source room to the rest of the dwelling was restrained by small door openings, since it then took longer for visibility to be lost. Photoelectric detectors were generally more effective than ionization detectors, as expected for smoldering conditions, and when located in the hallway provided adequate escape times for most conditions of size and location of smoke source.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 25 (1990), S. 4738-4744 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The evolution of (Sr, Ti) resin intermediates from the solutions during the Pechini process, and their pyrolysis to SrTiO3 were investigated using differential thermal analysis, thermogravimetric analysis, infrared spectroscopy, and X-ray diffraction techniques. In order to understand the Pechini process better, the organic solutions containing either only titanium ions or no metal ions were also prepared and thermally polymerized so that their decomposition processes could be examined in the same manner. In the case of the initial (Sr, Ti) organic solutions, all organic acid groups were bonded mainly either with ethylene glycol forming esters, or with Sr/Ti ions forming unidentate complexes. With heat treatment, the nature of the bonding between carboxylate groups and Sr/Ti ions changed: unidentate → bridging → ionic. Carbonate species were detected at 530 ° C using infrared spectra. Their concentration was reduced as SrTiO3 formed. On the basis of powder X-ray diffraction data, it is doubtful that SrC03 and TiO2 were formed as distinct intermediate phases. Possibly, a carboxylate complex (Sr2Ti2O5CO3) was formed prior to the formation of SrTiO3.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 26 (1991), S. 6576-6580 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The behaviour of microhardness under varying load was investigated with an apparatus which measured both load and diamond pyramid motion simultaneously. There have been several experiments with this type of apparatus, which are designed to measure the hardness under load of a material. This type of measurement eliminates the effect of elastic recovery after the diamond is removed from the sample. Two types of load-independent hardness have been proposed on the basis of studies performed on this type of apparatus. The first follows the theory of Tate stating that elastic recovery is responsible for the load dependence of hardness. The second, proposed by Froelichet al. states that the load dependence of hardness is due to surface forces. This investigation used an apparatus similar to that of Froehlichet al. The results indicated that the load-independent hardness of Froehlichet al. was an experimental artifice caused by late detection of the surface, leading to underestimation of the penetration and overestimation of the hardness. Hardness measured under load using the apparatus in the present project was found to be load dependent.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 26 (1991), S. 6576-6580 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The behaviour of microhardness under varying load was investigated with an apparatus which measured both load and diamond pyramid motion simultaneously. There have been several experiments with this type of apparatus, which are designed to measure the hardness under load of a material. This type of measurement eliminates the effect of elastic recovery after the diamond is removed from the sample. Two types of load-independent hardness have been proposed on the basis of studies performed on this type of apparatus. The first follows the theory of Tate stating that elastic recovery is responsible for the load dependence of hardness. The second, proposed by Froelichet al. states that the load dependence of hardness is due to surface forces. This investigation used an apparatus similar to that of Froehlichet al. The results indicated that the load-independent hardness of Froehlichet al. was an experimental artifice caused by late detection of the surface, leading to underestimation of the penetration and overestimation of the hardness. Hardness measured under load using the apparatus in the present project was found to be load dependent.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 11 (1977), S. 637-656 
    ISSN: 0021-9304
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: Oxidation-reduction reactions which can destroy high current-density metalstimulating electrodes are avoided when using capacitive electrodes. The results of in vitro and in vivo testing of anodized, high surface area, sintered tantalum electrodes are presented. The corrosion response of the electrodes is excellent; there is no evidence of dissolution of the electrode. A deposit forms on the surface of the electrodes, but has little effect on the voltage response to constant current stimulation. The physiological and histopathological results indicate the capacitive tantalum electrode to be the safest yet tested.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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