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  • 1
    Electronic Resource
    Electronic Resource
    Metastable Phase Formation and Microstructure Evolution from Undercooled Eutectic Melts (1999)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 312-314 (July 1999), p. 275-280 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/04/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.312-314.275.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    Metastable Phase Formation and Microstructure Evolution from Undercooled Eutectic Melts (1999)
    s.l. ; Stafa-Zurich, Switzerland
    Journal of metastable and nanocrystalline materials Vol. 2-6 (July 1999), p. 275-280 
    Details
    ISSN: 1422-6375
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/43/transtech_doi~10.4028%252Fwww.scientific.net%252FJMNM.2-6.275.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Metastable Phase Formation in Undercooled Nb-Al Melts (1996)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 235-238 (Oct. 1996), p. 355-360 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/02/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.235-238.355.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of ribbon-wheel contact on the microstructure of melt-spun Al-Cu eutectic alloy ribbons (1985)
    Springer
    Journal of materials science 20 (1985), S. 3141-3149 
    Details
    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 microstructure of melt-spun Al-17.3 at% Cu eutectic alloy ribbons with different thicknesses have been revealed by means of electron microscopy and X-ray techniques. Thick ribbons (〉20μm) consist of finely-dispersed α-Al and Al2Cu equilibrium phases showing lamellar or irregular morphology. In thin ribbons a considerable fraction of supersaturated α-Al solid solution and the metastable Al4Cu9 phase have been detected. The experimental facts on the identity of the phases, their morphology and particle size for given processing conditions are discussed within the framework of a heat flow model including the solidification process as well as post-solidification transformations. The microstructural features are considered to be determined by local and time variations of the ribbon-wheel contact.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00545179
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  • 5
    Electronic Resource
    Electronic Resource
    Theoretical investigations on absorption and fluorescence of perylene and its tetracarboxylic derivatives (1997)
    Springer
    Monatshefte für Chemie 128 (1997), S. 105-112 
    Details
    ISSN: 1434-4475
    Keywords: Absorption/fluorescence properties ; Molecular structure ; Perylene tetracarboxylic derivatives ; Vibronic structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Theoretische Molekülgeometrien der Perylen-Derivate 3,4,9,10-Perylentetracarbonsäuredianhydrid (PTCDA), 3,4,9,10-Perylentetracarbonsäurediimid (PTCDI), N,N′-Dimethyl-3,4,9,10-Perylentetracarbonsäurediimid (MePTCDI) und 3,4,9,10-Perylentetracarbonsäuredisulfid (PTCDS) für die elektronischen ZuständeS 0 undS 1 werden vorgestellt. Auf dieser Grundlage können die elektronischen Absorptionseigenschaften interpretiert und mit experimentellen Daten verglichen werden. Die vibronische Struktur derS 0 →S 1-Absorption und derS 1 →S 2-Fluoreszenz konnte reproduziert werden. Die Analyse der aktiven Schwingungsmoden zeigen ein gegenüber Perylen vergleichbares Verhalten der Derivate.
    Notes: Summary Theoretical molecular geometries of the perylene derivatives 3,4,9,10-perylene tetracarboxylic dianhydride (PTCDA), 3,4,9,10-perylene tetracarboxylic diimide (PTCDI), N,N′-dimethyl 3,4,9,10-perylene tetracarboxylic diimide (MePTCDI), and 3,4,9,10-perylene tetracarboxylic disulfide (PTCDS) are presented for the electronic statesS 0 andS 1. On this basis, the electronic absorption properties can be interpreted and compared with experimentel data. The vibronic structure ofS 0 →S 1 absorption andS 1 →S 0 fluorescence has been reproduced. The analysis of the active vibrational modes shows a corresponding behaviour of derivatives and perylene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00807299
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  • 6
    Electronic Resource
    Electronic Resource
    Vitamin E content of different animal products: Influence of animal nutrition (1997)
    Springer
    European journal of nutrition 36 (1997), S. 23-27 
    Details
    ISSN: 1436-6215
    Keywords: Vitamin E ; Fleisch ; Fettgewebe ; Leber ; Eigelb ; Vitamin E ; meat ; adipose tissue ; liver ; egg yolk
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary The α-tocopherol content of different meat cuts was examined. Chicken thigh had the highest vitamin E content, followed by chicken breast and pork shoulder (p〈0.05). The lowest concentrations were found in longissimus dorsi muscle from pork, beef, veal and in beef shoulder. Considering the average daily lean meat consumption (105 g) in Switzerland, recommendation for daily vitamin E intake was met to 3 %. Supplementation of 200 mg α-tocopherol acetate/kg feed to pigs and laying hens significantly increased the α-tocopherol content in all examined products. The α-tocopherol accumulation differed according to the following ranking: egg yolk 〉 liver 〉 adipose tissue 〉 musculus longissimus dorsi. The α-tocopherol:energy ratios were 28.8, 7.3, 0.9 and 1.2 mg/MJ for egg yolk, liver, adipose tissue and longissimus dorsi muscle of the vitamin E supplemented groups, respectively. The results showed that meat, with the exception of chicken thigh, is not an important supplier of vitamin E, not even from animals fed a vitamin E enriched diet. Egg yolk became a good source of vitamin E for human nutrition by dietary modification.
    Notes: Zusammenfassung In der vorliegenden Studie wurde der α-Tocopherolgehalt verschiedener Fleischstücke untersucht. Hähnchenschenkel hatte den höchsten α-Tocopherolgehalt, gefolgt von Hähnchenbrust und Schweineschulter (p〈0.05). Die niedrigsten Konzentrationen wurden im Musculus longissimus dorsi vom Schwein, Rind, Kalb und in der Rindsschulter nachgewiesen. Mit dem durchschnittlichen, täglichen Verzehr an magerem Fleisch (105 g) in der Schweiz wurden die Empfehlungen für die tägliche Vitamin E-Zufuhr zu 3 % gedeckt. Die Supplementierung des Schweine- und Legehennenfutters mit 200 mg α-Tocopherolacetat/kg führte zu einem signifikanten Anstieg des α-Tocopherolgehaltes in allen untersuchten Produkten. Die α-Tocopherolakkumulierung unterschied sich gemäß folgender Rangordnung: Eigelb 〉 Leber 〉 Fettgewebe 〉Musculus longissimus dorsi. Die Nährstoffdichten betrugen 28.8, 7.3, 0.9 und 1.2 mg α-Tocopherol/MJ für Eigelb, Leber, Fettgewebe und Musculus longissimus dorsi der jeweiligen mit Vitamin E supplementierten Gruppe. Diese Ergebnisse zeigen, daß Fleisch, mit Ausnahme des Hähnchenschenkels, von Tieren mit supplementierten Diäten kein bedeutender Vitamin E-Lieferant ist. Hingegen wurde Eigelb durch fütterungsbedingte Modifikation zu einer guten Vitamin E-Quelle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01618896
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  • 7
    Electronic Resource
    Electronic Resource
    New approaches in the pharmacological treatment of obesity (1999)
    Springer
    European journal of nutrition 38 (1999), S. 1-13 
    Details
    ISSN: 1436-6215
    Keywords: Key words Pharmacotherapy – obesity – appetite suppressant – thermogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary Many new substances are currently being investigated for their usefulness in the pharmacotherapy of obesity. Most drugs interfere with monoamine neurotransmitter (serotonin, noradrenalin, dopamine and histamine) effects and act as an appetite suppressant. Other approaches are to primarily increase thermogenesis (e.g. β3-adrenoceptor agonists), or to decrease fat absorption by inhibiting the pancreatic lipase (orlistat). New promising agents are substances that increase the effect of corticotropin releasing factor (CRF) or urocortin in the brain (CRF-binding protein ligand inhibitor) and a neuropeptide Y (NPY) Y5 receptor antagonist. The clinical relevance of leptin in the therapy of obesity is probably limited, but can not be fully evaluated at the moment. As obesity has a multifactorial basis, all these substances have in common the fact that they can not cure obesity. They should only be used as an adjunct to classical strategies like diet and exercise in severe obesity. For developing new, perhaps even more specific pharmacological agents, further research is needed to understand the individually different genetic and physiological basis of obesity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003940050040
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  • 8
    Electronic Resource
    Electronic Resource
    Effects of composition on microstructures of rapidly solidified Ni–Al alloys (1998)
    Springer
    Journal of materials science 33 (1998), S. 4365-4374 
    Details
    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 Microstructures of melt-spun Ni–Al alloys with compositions from 61–85 at% Ni were studied by means of transmission electron microscopy, X-ray diffraction analysis and optical microscopy. The microstructures of as-quenched ribbons exposed to cooling rates of the order of 106 K s-1 reflect the transition from primary β-NiAl to γ-Ni solidification with increasing nickel content. In 70 at% Ni alloy ribbons, martensitic NiAl grains were detected near the wheel-side surface contrasting with anomalous and lamellar eutectic microstructure in the top part. Directly ordered Ni3Al grains with single (or large) antiphase domains (APDs) and a minor eutectic fraction were observed in 75 at% Ni alloy ribbons. Samples containing 80 at% Ni exhibit mainly single-phase Ni3Al grains with 10–20 nm sized APDs indicating sequential ordering. Weak L12 ordering was even detected in 85 at% Ni ribbons which displayed ordered antiphase zones of 1 nm size. Disordered γ-(Ni) films on grain boundaries can be discounted for 80 at% Ni ribbons, but occurred near the top of 85 at% Ni samples. The results are explained in terms of the reassessed Ni–Al phase diagram employing recent corrections near to the Ni3Al composition and new results on phase formation in undercooled Ni–Al melts. © 1998 Kluwer Academic Publishers
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004432931315
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  • 9
    Electronic Resource
    Electronic Resource
    Microstructure formation in rapidly solidified eutectic Nb-59.5 at % Al alloys (1997)
    Springer
    Journal of materials science 16 (1997), S. 1366-1369 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018584505156
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  • 10
    Electronic Resource
    Electronic Resource
    Ueber Hemimellithsäure (1896)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 290 (1896), S. 217-238 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.18962900212
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