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  • 1
    Electronic Resource
    Electronic Resource
    Genetic diversity of Pueraria lobata (kudzu) and closely related taxa as revealed by inter-simple sequence repeat analysis (2005)
    Oxford, UK : Blackwell Science Ltd
    Weed research 45 (2005), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Kudzu (Pueraria lobata) is a noxious weed infesting some areas of the USA. Knowledge of its genetic variation in both native and invasive areas can lead to effective biological control measures. Inter-simple sequence repeat (ISSR) variations were studied in P. lobata and its four closely related congeneric species (P. edulis, P. montana, P. phaseoloides and P. thomsoni). ISSR results allowed a clear separation of these five species. For P. lobata, 108 plants from China and USA were analysed. The samples from the US were genetically closer to Chinese P. lobata populations than to other congeneric populations. High genetic differentiation was found for P. lobata, P. montana and P. thomsoni in Chinese samples. High genetic diversity and low population differentiation was found in P. lobata samples of the US. This supports the hypothesis of multiple introductions into the USA from different sources in Japan or China, followed by subsequent gene exchange and recombination.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.2005.00462.x
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  • 2
    Electronic Resource
    Electronic Resource
    Characteristics of women having abortion in China
    Amsterdam : Elsevier
    Social Science & Medicine 31 (1990), S. 445-453 
    Details
    ISSN: 0277-9536
    Keywords: China ; abortion ; contraceptive behavior ; contraceptive failure
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0277-9536(90)90039-U
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  • 3
    Electronic Resource
    Electronic Resource
    Influence of hue origin on the hue-temperature calibration of thermochromic liquid crystals (1997)
    Springer
    Heat and mass transfer 33 (1997), S. 121-127 
    Details
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Liquid crystal thermography incorporates a process by which the liquid crystal color, bearing temperature information, is analyzed using image processing techniques to quantify complex temperature distributions on heat transfer surfaces. Previous researches have found that hue can be used to represent the liquid crystal color since there exists a monotonic relation between the hue and temperature of liquid crystals. It is found in this study that the white-light point, which is usually adopted as the hue reference point, does not generally lie at the center of the liquid crystal colors defined on a chromaticity diagram. This results that hue does not have uniform resolution to all liquid crystal colors and a biased error is produced subsequently in the temperature measurement. The non-uniform hue can be corrected by shifting the hue origin to the center of the colors or by a color calibration scheme so that the liquid crystal colors distribute evenly around the white-light point.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002310050168
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  • 4
    Electronic Resource
    Electronic Resource
    Measurement of the flow field in a diesel engine combustion chamber after combustion by cross-correlation of high-speed photographs (1996)
    Springer
    Experiments in fluids 20 (1996), S. 335-345 
    Details
    ISSN: 1432-1114
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A cellular cross-correlation technique is applied to high-speed photographs of the luminous phase of combustion in a high-speed direct-injection diesel engine. The method enables the velocity and vorticity distributions in the combustion chamber to be evaluated. The results obtained from the basic technique are refined to remove spurious results and to complete the definition of the flow field by applying data validation, interpolation, and smoothing. The velocity and vorticity fields evaluated at two swirl ratios show the way in which the basically solid body swirl motion interacts with the fuel jets in the combustion chamber. A better understanding of the post-combustion fluid motion is obtained, and this should be of help in validating CFD codes and also the design of engines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00191015
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  • 5
    Electronic Resource
    Electronic Resource
    Effects of phorbol esters on excitation-contraction coupling and protein kinase C activity of frog twitch muscle fibers (1999)
    Springer
    Pflügers Archiv 438 (1999), S. 61-67 
    Details
    ISSN: 1432-2013
    Keywords: Key words Calcium transients ; Phorbol esters ; Protein kinase C ; Skeletal muscle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  By recording the calcium transients evoked by voltage-clamp depolarizing pulse with arsenazo III as a calcium indicator, it has been shown that 1 µmol/l phorbol 12,13-dibutyrate (PDBu), a protein kinase C (PKC) agonist, causes a transient potentiation and then a depression of the calcium transients of twitch muscle fibers in frogs. PDBu also produces an initial translocation and activation of PKC, which is followed by a down-regulation. To find out whether the effect of PDBu on the calcium transients depends on PKC, a correlated study of the effect of phorbol esters on calcium transients and PKC activity was performed. The calcium transients and PKC activity were similarly affected by PDBu in ordinary and cold-accommodated frogs, but the effects occurred more quickly in the latter. However, they still changed in parallel as in ordinary frogs. 1 or 10 µmol/l, 4-α-phorbol, a PKC-inactive analogue of phorbol ester, caused a partial depression of the calcium transients in cold-accommodated frogs, while PKC activity was not affected. Moreover, the transient potentiation of the calcium transients induced by 1 µmol/l PDBu could be antagonized by the PKC inhibitors 10 µmol/l chelerythrine chloride or 10 µmol/l polymyxin B (PMB). All these results suggest that: (1) the transient potentiation of calcium transients induced by PDBu is caused by activation of PKC; (2) phorbol ester can depress the calcium transients by a mechanism that is independent of PKC.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004240050880
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  • 6
    Electronic Resource
    Electronic Resource
    The spalling modes and degradation mechanism of ZrO2-8 wt.% Y2O3/CVD-Al2O3/Ni-22Cr-10Al-1Y thermal-barrier coatings (1993)
    Springer
    Oxidation of metals 40 (1993), S. 465-481 
    Details
    ISSN: 1573-4889
    Keywords: thermal-barrier coatings (TBCs) ; CVD-Al2O3 ; bond coat ; thermal-cyclic oxidation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract State-of-the-art conventional thermal-barrier coatings consist of a thermalinsulating, partially-stabilized ZrO2 top coat and a bond coat. In this study, a continuous alumina-diffusion-barrier layer was deposited and interposed between the top coat and bond coat by chemical-vapor deposition (CVD). Both the conventional and the experimental TBC systems were cyclically tested at 1000°C, 1050°C, 1100°C, and 1150°C to evaluate and compare oxidation, performance, and fracture behavior. Introduction of the intermediate CVD-Al2O3 layer effectively suppressed the oxidation rate of the bond coat and sufficiently altered its oxidation behavior. The thermal-cyclic life of TBCs was improved by the new system. The failure of the ZrO2-8 wt.% Y2O3/CVD-Al2O3/Ni-22Cr-10Al-1Y TBC specimens was observed to propagate mainly along the lamellar splats of the top coat, and secondarily along the top coat/CVD-Al2O3 interface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00666387
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