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  • Chemistry  (4)
  • Helianthus annuus  (1)
  • 2020-2021
  • 2000-2004
  • 1995-1999  (5)
  • 1965-1969
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  • 1995  (5)
  • 1
    Digitale Medien
    Digitale Medien
    Weinheim : Wiley-Blackwell
    Particle and Particle Systems Characterization 12 (1995), S. 68-74 
    ISSN: 0934-0866
    Schlagwort(e): Chemistry ; Industrial Chemistry and Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Maschinenbau , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: An overview of Electro-Magnetic Tomography (EMT) using mutual inductance measurements is presented. The paper reviews the technique and principle of operation and gives a description of three case studies, which cover some of the generic design considerations and which illustrate the potential variety for inductive EMT systems. Results from the systems are described. These systems are presently experimental and possible future developments and applications are discussed.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    ISSN: 1573-8469
    Schlagwort(e): Helianthus annuus ; hypersensitivity ; metalaxyl ; Plasmopara halstedii
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract The mode of action of the fungicide metalaxyl againstPlasmopara halstedii, the causal agent of sunflower downy mildew, was studied following its application before, during and after artificial contamination of seedlings. The development of the fungus within the treated seedlings was examined microscopically and compared to that occuring in untreated genetically susceptible or resistant genotypes. Hypersensitive-like reactions and necrotic zones leading to the inhibition of fungus growth within the hypocotyl were observed for the three modes of application. This suggests that sunflower defence mechanisms activated by genetical resistance are also involved in the control of downy mildew by metalaxyl.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Microcolumn Separations 7 (1995), S. 199-206 
    ISSN: 1040-7685
    Schlagwort(e): micellar electrokinetic chromatography ; capillary electrophoresis ; bile salts ; metal-ligands ; chiral separations ; Chemistry ; Analytical Chemistry and Spectroscopy
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: We have utilized micellar electrokinetic chromatography with sodium deoxycholate micelles to separate the enantiomers of bis(8-((pyridine-2-methylene)amino)quinoline)iron(II) hexafluorophosphate, Fe(PMAQ)2(PF6)2, bis(8-((pyridine-2-methylene)amino)lepidine iron(II) hexafluorophosphate, Fe(PMAL)2(PF6)2, and bis(1-(2-pyridinyl)ethylidine)-8-aminoquinoline iron(II) hexafluorophosphate, Fe(PEAQ)2(PF6)2. The influence of 13 water miscible organic additives on the resolution of each pair of enantiomers was investigated. Significant changes in resolution are seen depending upon the particular organic additive used in the separation buffer. In addition, the effects of acetone concentration on the resolution of these enantiomers in bile salt solution was investigated. Resolution for all three pairs of enantiomers is maximized in a buffer solution containing 15% acetone. © 1995 John Wiley & Sons, Inc.
    Zusätzliches Material: 7 Ill.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 57 (1995), S. 265-270 
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Nylon 6 fibers were annealed in air at 160°C for periods ranging from 1 to 10 h. Their spectral reflectance values were measured. Color parameters, including luminance factor, dominant wavelength, purity, and the color difference between annealed nylon 6 fiber samples and unheated ones were calculated. The observed variations in the colors of samples were assumed due to the thermal and oxidation degradations. The behavior of the color parameters with heating duration was compared with the general kinetic curve of thermooxidative degradation of polymers and the match between them is discussed. The color difference ΔE values is recommended for monitoring the thermooxidative degradation of nylon 6 fibers. © 1995 John Wiley & Sons, Inc.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Weinheim : Wiley-Blackwell
    Electrophoresis 16 (1995), S. 1295-1300 
    ISSN: 0173-0835
    Schlagwort(e): Triticum ; Secale ; Hordeum ; Two-dimensional polyacrylamide gel electrophoresis ; Phylogenetic relationships ; Chemistry ; Biochemistry and Biotechnology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Two-dimensional gel electrophoresis of shoot proteins was used to study the relationships between Triticum, Secal, and Hordeum. A high level of polymorphism was found among the 1275 spots scored: only 198 spots were found common to all. But, under the hypothesis that only allelic variations were observed, the mean number of alleles per locus was only two. Phenograms were built from different distance indices. All of them showed Triticum genomes A and D close to each other, Hordeum, far from the Triticum cluster, and Secale at an intermediate position. A discussion on the use of various distance indices is presented.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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