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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Pharmaceutical and Biomedical Analysis 4 (1986), S. 559-564 
    ISSN: 0731-7085
    Keywords: Ethanol ; breath ; review. ; saliva ; urine
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Pharmaceutical and Biomedical Analysis 4 (1986), S. 545-558 
    ISSN: 0731-7085
    Keywords: Ethanol ; automatic methods ; blood ; non-automatic methods ; review.
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1435-3725
    Keywords: 12.38.-t ; 13.85.-t ; 13.87.Ce ; 13.87.Fh
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present a study of correlations between D and $${\overline D}$$ mesons produced in 500 GeV/cπ−-nucleon interactions, based on data from experiment E791 at Fermilab. We have fully reconstructed 791 ± 44 charm meson pairs to study correlations between the transverse and longitudinal momenta of the two D mesons and the relative production rates for different types of D meson pairs. We see slight correlations between the longitudinal momenta of the D and the $${\bar D}$$ , and significant correlations between the azimuthal angle of the D and the $${\bar D}$$ . The experimental distributions are compared to a next-to-leading-order QCD calculation and to predictions of the PYTHIA/JETSET Monte Carlo event generator. We observe less correlation between transverse momenta and different correlations between longitudinal momenta than these models predict for the default values of the model parameters. Better agreement between data and theory might be achieved by tuning the model parameters or by adding higher order perturbative terms, thus contributing to a better understanding of charm production. The relative production rates for the four sets of charm pairs, $$D^0{{\overline D}^0}, D^0 D^{-}, D^+{{\overline D}^0}, D^+ D^{-}$$ as calculated in the PYTHIA/JETSET event generator with the default parameters, agree with data as far as the relative ordering, but predict too many $$D^+ {{\overline D}^0}$$ pairs and too few $$D^+ D^{-}$$ pairs.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1435-3725
    Keywords: 12.38.-t ; 13.85.-t ; 13.87.Ce ; 13.87.Fh
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present a study of correlations between D and $${\overline D}$$ mesons produced in 500 GeV/cπ−-nucleon interactions, based on data from experiment E791 at Fermilab. We have fully reconstructed 791 ± 44 charm meson pairs to study correlations between the transverse and longitudinal momenta of the two D mesons and the relative production rates for different types of D meson pairs. We see slight correlations between the longitudinal momenta of the D and the $${\bar D}$$ , and significant correlations between the azimuthal angle of the D and the $${\bar D}$$ . The experimental distributions are compared to a next-to-leading-order QCD calculation and to predictions of the PYTHIA/JETSET Monte Carlo event generator. We observe less correlation between transverse momenta and different correlations between longitudinal momenta than these models predict for the default values of the model parameters. Better agreement between data and theory might be achieved by tuning the model parameters or by adding higher order perturbative terms, thus contributing to a better understanding of charm production. The relative production rates for the four sets of charm pairs, $$D^0{{\overline D}^0}, D^0 D^{-}, D^+{{\overline D}^0}, D^+ D^{-}$$ as calculated in the PYTHIA/JETSET event generator with the default parameters, agree with data as far as the relative ordering, but predict too many $$D^+ {{\overline D}^0}$$ pairs and too few $$D^+ D^{-}$$ pairs.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 240 (1996), S. 67-81 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Standard epoxy resins have good mechanical properties, but their prolonged low temperature curing time limits their potential use in clinical applications as well as in many industrial applications. A fast-curing epoxy-episulfide resin has been developed. The gel time of epoxy-episulfide made from EPONTrade mark of Shell Chemical Company. 828 ranges from 2 to 10 minutes by changing the ratio of the ingredients. The heat of reaction of this system is low, resulting in low cure shrinkage. Water absorption of the episulfide network is low. The epoxy-episulfide system cured with polyamide curing agent V-40 exhibits two transition temperatures, at about 85°C and 130°C, as shown in dynamic mechanical analysis data. In order to solve the long term stability problem of the above episulfides, and also the mixing problem, a lower viscosity resin, Eponex, was used to make Eponex-sulfide. Eponex-sulfide systems show promise in that they remain in a stable liquid form without epoxy. The other advantages appear to be retained.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 167 (1973), S. 147-154 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Es wurden methoxylierte p-Vinylbenzophenone dargestellt, indem man die aus p-Chlorstyrol bereitete magnesiumorganische Verbindung mit methoxylierten Benzaldehyden reagieren ließ und die dabei erhaltenen p-Vinylbenzhydrole oxidierte. Die Monomeren ließen sich radikalisch in Lösung polymerisieren Dabei entstanden Polymere hohen Mol.-Gew., die in einer späteren Arbeit teilweise entmethyliert und deren Absorptionseigenschaften im UV-Gebiet eingehend untersucht werden sollen.
    Notes: Les p-vinyl benzophénones méthoxylées ont été synthétisées par action du chlorure de p-vinyl phényl magnésium sur les benzaldéhydes méthoxylés suivie de l'oxydation des p-vinyl benzhydrols obtenus. Les monoméres ont été polymérisés par procédure radicalaire en solution. Cette réaction conduit, dans le cas de la benzophénone diméthoxylée, à des polyméres de grandes masses. Ces polymères seront partiellement déméthoxylés dans un prochain travail afin de faire apparaître les propriétés d'absorbeurs UV.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 168 (1973), S. 19-26 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Methoxylierte 4-vinylbenzophenone wurden radikalisch mit Styrol in benzolischer Lösung copolymerisiert. Die Zusammensetzung der Produkte konnte mittels 1H-NMR-Spektren bestimmt werden. Die Copolymerisationsparameter für die radikalische Copolymerisation wurden berechnet; hierbei zeigten die methoxylierten p-Vinylbenzophenone eine größere Reaktivität als Styrol. Diese 4-Vinylbenzophenonhomo- und -copolymeren haben keine schützende Wirkung gegen UV-Bestrahlung. Die hierfür notwendige Bedingung ist das Vorhandensein einer Hydroxylgruppe in ortho-Stellung zur Carbonylgruppe. Deshalb untersuchten wir die partielle Entmethylierung der 4-Vinyl-2′-methoxy-benzophenonpolymeren. Ihre saure Behandlung gab 2′-Hydroxyderivate. Das UV-Spektrum des erhaltenen Poly(4-vinyl-2′-hydroxy-4′-methoxybenzophenons) zeigt eine schützende Wirkung gegen natürliches Tageslicht an.
    Notes: Les monomères cités ont été copolymérisés radicalairement dans le benzene avec le styrène. La composition des copolymères a été déterminée à partir de leurs spectres NMR. Les constantes r1 et r2 été détérminée d calculdes; dans ce cas, les p-vinylbenzopédnones méthoxy-lées ont une plus grande réactivité que le styrene. Les homo et copolymkres de ces p-vinyl-benzophdnones n'ont aucun effet protecteur contre le rayonnement UV. La condition nécessaire pour obtenir cet effet est la pédsence d'un groupement hydroxyle en position ortho par rapport au groupement carbonyle. La déméthylation partielle des polyméres des vinyl-4 méthoxy-2′ benzophénones a été étudiée dans ce but. Cette réaction a permis d'obtenir en particulier la poly(viny1-4 hydroxy-2′ mdthoxy-4′ benzophenone) dont le spectre UV indique un effet protecteur contre la lurnière naturelle.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Advanced Materials for Optics and Electronics 8 (1998), S. 1-8 
    ISSN: 1057-9257
    Keywords: electrodeposition ; copper-indium-selenide ; thin films ; layer-by-layer deposition ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: The electrochemical bath used for growing device-quality CIS (CuInSe2) thin films by co-deposition as well as layer-by-layer (LBL) deposition was characterised and optimised with respect to the film properties. The bath composition was varied by changing the Cu, In and Se ion concentrations in specific ratios in both co-deposition and LBL deposition. The film properties were analysed using techniques such as SEM (scanning electron microscopy), EPMA (electron probe microanalysis), AES (Auger electron spectroscopy) and XRD (X-ray diffraction). The structural, morphological and compositional properties of the films were characterised and their variation is attributed to the bath composition and growth conditions. © 1998 John Wiley & Sons, Ltd.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Advanced Materials for Optics and Electronics 5 (1995), S. 11-17 
    ISSN: 1057-9257
    Keywords: CdS ; chemical deposition ; complexing agent ; sulfurising agent ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: The growth modes of CdS thin films on glass in a chemical bath were analysed using scanning electron microscopy and optical microscopy. The results of these studies show that the film growth occurs by ion-by-ion condensation and by colloidal particles of CdS adhering to the substrate. Both mechanisms are operative from the initial stages of film growth. The predominance of one or other of these two growth modes depends on the abundance of Cd and S ions present in the solution, which is determined by the amount of complexing and sulphurising agents and ammonia used for the controlled release of Cd and S ions into the solution. The growth mode influences the optical properties of the films.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 18 (1992), S. 392-396 
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Three different TiO2 samples in the form of bulk material, colloidal particles and small clusters supported on SiO2 have been studied by extended x-ray adsorption fine structure (EXAFS), UV-visible, transmission electron microscopy (TEM) and XPS. The different values of the Ti 2p binding energies and the Auger parameter of Ti found for each sample show that the photoemission processes in these oxide materials are influenced by size and support effects. A difference in the relaxation energy of -1.1 eV is found for the TiO2/SiO2 sample with respect to TiO2, which is attributed to an effect of the silica support.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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