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  • 1
    Electronic Resource
    Electronic Resource
    Modification of exchange interaction parameters by wire width in Cd0.95Mn0.05Te/Cd0.90Mg0.10Te quantum wires (2001)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 6701-6703 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Magneto-photoluminescence from mesa-shaped Cd0.95Mn0.05Te/Cd0.90Mg0.10Te quantum wires were studied. The Zeeman shift of the excitonic photoluminescence from the quantum wires in a magnetic field is significantly decreased, compared to that from quantum wells. This decrease results from the possible reduction of the exchange interaction of electrons and holes with Mn ions in low dimensional structures. In the excitonic photoluminescence of the quantum wires with the width of 50–100 nm, the transient relaxation of the luminescence peak energy due to the excitonic magnetic polaron formation is remarkably less than that in the quantum well. This result shows the suppressed excitonic magnetic polaron effect in the narrower quantum wires. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1357143
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  • 2
    Electronic Resource
    Electronic Resource
    Isoperoxidase in hairy roots and regenerated plants of horseradish (Armoracia lapathifolia)
    Amsterdam : Elsevier
    Plant Science 75 (1991), S. 195-201 
    Details
    ISSN: 0168-9452
    Keywords: hairy roots ; horseradish ; isoperoxidase ; regenerated plants
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9452(91)90234-Y
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  • 3
    Electronic Resource
    Electronic Resource
    Involvement of phytohormones in light-induced adventitious shoot formation of horseradish hairy roots
    Amsterdam : Elsevier
    Plant Science 86 (1992), S. 161-166 
    Details
    ISSN: 0168-9452
    Keywords: bud formation ; cytokinin ; hairy root ; horseradish ; light
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9452(92)90162-F
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  • 4
    Electronic Resource
    Electronic Resource
    Overexpression of phytochrome A enhances the light-induced formation of adventitious shoots on horseradish hairy roots (1999)
    Springer
    Plant cell reports 18 (1999), S. 754-758 
    Details
    ISSN: 1432-203X
    Keywords: Key words Adventitious bud formation ; Armoracia ; Hairy root ; Bud formation ; Phytochrome A
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A full-length cDNA of the gene for phytochrome A from Arabidopsis thaliana was fused with the 35S promoter of cauliflower mosaic virus (CaMV35S-PHYA) and introduced into horseradish (Armoracia rusticana Gaert., Mey. et Scherb.) hairy roots. The phytochrome level in hairy roots transformed with CaMV35SPHYA was about three times greater than that in normal hairy roots and the rate of light-induced formation of adventitious shoots was also higher in the hairy roots transformed with CaMV35SPHYA. These results indicate that the light-induced formation of adventitious shoots on horseradish hairy roots is closely related to the phytochrome level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990050655
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  • 5
    Electronic Resource
    Electronic Resource
    Genes for phytochrome A in horseradish: isolation of cDNAs and analysis of expression during light-induced formation of adventitious shoots from hairy roots (2000)
    Springer
    Plant cell reports 19 (2000), S. 1212-1218 
    Details
    ISSN: 1432-203X
    Keywords: Keywords Adventitious shoot ; Hairy root ; Phytochrome A ; Horseradish ; Light induction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Three cDNAs for phytochrome A (phyA), designated ArPHYA1, ArPHYA2 and ArPHYA3, respectively, were isolated from a cDNA library prepared from proximal parts of the hairy roots of horseradish (Armoracia rusticana). The level of phyA was higher in those parts than in any other parts of hairy roots. The amino acid sequences deduced from the cDNAs were quite similar, with stronger homology to the product of PHYA of Arabidopsis thaliana than to products of genes for phytochromes of many other plant species. Levels of transcripts in roots and tubers were higher than those in leaves and petioles. The levels in hairy roots were highest at the proximal ends and increased with increased duration of culture in darkness. Furthermore, the levels in proximal parts decreased by 25–50% after light irradiation. The elevated levels of transcripts of PHYA genes at the proximal ends of hairy roots are discussed with reference to the light-induced formation of adventitious shoots.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990000259
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  • 6
    Electronic Resource
    Electronic Resource
    The virtual origin of riblets in an open channel flow (1995)
    Springer
    Flow, turbulence and combustion 55 (1995), S. 327-341 
    Details
    ISSN: 1573-1987
    Keywords: riblets ; virtual origin ; buffer layer ; open channel flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract In this paper, a method using the mean velocity profiles for the buffer layer was developed for the estimation of the virtual origin over a riblets surface in an open channel flow. First, the standardized profiles of the mixing length were estimated from the velocity measurement in the inner layer, and the location of the edge of the viscous layer was obtained. Then, the virtual origins were estimated by the best match between the measured velocity profile and the equations of the velocity profile derived from the mixing length profiles. It was made clear that the virtual origin and the thickness of the viscous layer are the function of the roughness Reynolds number. The drag variation coincided well with other results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00856639
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  • 7
    Electronic Resource
    Electronic Resource
    XPS study on early stages of heat deterioratin of silicon-containing aromatic polymide film (1991)
    New York, NY [u.a.] : Wiley-Blackwell
    Applied Organometallic Chemistry 5 (1991), S. 309-318 
    Details
    ISSN: 0268-2605
    Keywords: XPS ; TG ; aromatic polyimide ; silicon ; silicon-carbon bond ; heat deterioration ; dissociation energy ; Chemistry ; Industrial Chemistry and Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Early stages of heat deterioration of some siliconcontaining aromatic polyimide thin films with disiloxane groups (I) in their main chains were studied with XPS. It was found that the thermal decomposition of silicon-containing aromatic polyimides takes place at lower temperatures than those not modified with silicon. The low thermal stabilities observed are explained by the easier decomposition of silicon-carbon bonds (e.g. silicon-methylene, silicon-aryl) than other bonds (e.g. carbon-carbon, carbon-oxygen). Particularly, silicon-methylene bonds (II) readily undergo thermal oxidative decomposition and start to decompose at 350°C under aerobic conditions. This starting temperature of thermal decomposition is lower by 100°C than that of the corresponding polyimide not modified with silicon. In the case of polyimide incorporating silicon-aryl bonds (III) instead of silicon-methylene bonds, the decrease in the thermal decomposition temperature is as small as 50°C, and decomposition under aerobic conditions starts at 400°C.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aoc.590050415
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