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  • 1
    Electronic Resource
    Electronic Resource
    Effects of subgrain structures on the optical homogeneity of Tl3AsSe3 single crystals (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 827-830 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Studies of subgrain structures in Tl3AsSe3 have been performed by x-ray topography. Birefringent interference patterns show that a direct correlation exists between the subgrain structures and the optical homogeneity of the crystals. A quantitative measurement of lattice misorientation was performed from the interference patterns and compared with x-ray rocking measurements. The origin of the subgrains is also discussed in detail.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.341932
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  • 2
    Electronic Resource
    Electronic Resource
    Solid-State Reactions between Picric Acid and Naphthols (1966)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 70 (1966), S. 3315-3324 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100882a047
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  • 3
    Electronic Resource
    Electronic Resource
    Solid-state reactivity of picric acid and substituted hydrocarbons (1968)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 72 (1968), S. 4446-4449 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100859a013
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  • 4
    Electronic Resource
    Electronic Resource
    The Activation Effect of K2SO4 on the Hydration of Gypsum Anhydrite, CaSO4(II) (2005)
    Oxford, UK : Blackwell Science Inc
    Journal of the American Ceramic Society 88 (2005), S. 0 
    Details
    ISSN: 1551-2916
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The effect of K2SO4 activator on the hydration of chemical anhydrite obtained from burned FGD-gypsum has been studied by different experimental techniques. Results obtained show that the degree of hydration increases when the K2SO4 concentrations increase from 0.5 to 3.3 wt%. Their heat evolution rate and maximum value also increase with the increase of K2SO4 concentration. The highest values were obtained when the hydration degree was about 50%. Also a correlation between the hydration degree and the total heat evolved was obtained. The X-ray and SEM/EDX studies have shown that K2SO4 is adsorbed at the surface of CaSO4 even within 5 min of hydration and a syngenite—a double salt K2SO4·CaSO4·H2O is formed (even in the presence of 1.0 wt% K2SO4). Also, important changes in the morphology of the dihydrate crystal are detected. Finally, in the presence of 1.0 wt% K2SO4 (water/anhydrite (W/A) ratio=0.33), it was found that the resonance frequency, modulus of elasticity, compressive strength, and tensile strength increase with the degree of hydration whereas the total porosity decreases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1551-2916.2004.00020.x
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  • 5
    Electronic Resource
    Electronic Resource
    Aligned structures in Tl2Se-As2Se3 system (1987)
    Springer
    Journal of materials science 6 (1987), S. 477-478 
    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/10.1007/BF01756804
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  • 6
    Electronic Resource
    Electronic Resource
    Studies on the surface layers of mercurous chloride single crystal (1987)
    Springer
    Journal of materials science 6 (1987), S. 669-672 
    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/10.1007/BF01770920
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of annealing on the optical quality of AgGaS2 and AgGaSe2 single crystals (1986)
    Springer
    Journal of materials science 21 (1986), S. 837-841 
    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 Single crystals of AgGaS2 and AgGaSe2 were grown by a modified Bridgman-Stockbarger technique. Pieces of sizes 10 mm × 6 mm × 4 mm and 11 mm × 6 mm × 5 mm of AgGaS2 and AgGaSe2 free from lamellar twins, were cut from the crystals for detailed investigations. The results of infrared transmittance and absorbance measurements indicate that the optical quality of the annealed crystals was much better than that of the as-grown crystals. Experiments on thermal etching were also carried out to study the microscopic defects in the crystals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01117361
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  • 8
    Electronic Resource
    Electronic Resource
    Crystal structure of α-naphthol picrate (1970)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 26 (1970), S. 875-875 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740870003278
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  • 9
    Electronic Resource
    Electronic Resource
    Regression analysis for general adaptation in pearl millet using different environmental indices (1984)
    Springer
    Theoretical and applied genetics 68 (1984), S. 509-513 
    Details
    ISSN: 1432-2242
    Keywords: Pennisetum typhoides (Burm. S. & H.) ; Genotype X environment interaction ; Regression analysis ; Environmental indices
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Regression analyses on grain yield of 20 hybrid and 13 composite varieties of pearl millet (Pennisetum typhoides (Burm. S. & H.)) evaluated at 19 sites in India were performed to assess their relative stability and to compare different measures of environmental values. A large portion of the significant genotype X environment interactions was attributed to the non-linear component and deviations mean squares (Sdi 2) were a very important parameter for selection of stable varieties. The mean grain yield was positively associated with regression coefficients and deviations mean squares. The hybrids MH 31, MH 35, MH 36 and MH 62 and composite populations MP 16, MP 31 and MP 36 possessed general adaptability. The use of dependent, independent and near-independent measures of environmental values has been found to have little influence on the general interpretation of regression analysis in pearl millet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00284999
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  • 10
    Electronic Resource
    Electronic Resource
    Thermal studies of bis 2-amino-5-phenyl-1,3,4-thiadiazole copper(II) sulphate (1978)
    Springer
    Journal of thermal analysis and calorimetry 14 (1978), S. 229-234 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé La décomposition thermique du “sulfate de cuivre(II) bis(amino-2 phényl-5 thiodiazole-1,3,4) a été étudiée par TG, ATD et TGD. La conductibilité électrique de ce composé a également été mesurée à l'état solide à diverses températures. La décomposition est sans doute un processus contrÔlé par la nucléation et s'amorce sur des défauts de sites.
    Abstract: Zusammenfassung Die thermische Zersetzung von ’Bis-2-Amino-5-Phenyl-1,3,4-Thiadiazol-Kupfer(II)-Sulfat’ wurde durch TG, DTA und DTG untersucht. Die elektrische Leitfähigkeit5der Verbindung im festen Zustand wurde ebenfalls bei verschiedenen Temperaturen gemessen. Es wird angenommen, dass die Zersetzung ein durch Keimbildung gesteuerter Vorgang ist und an den Defektstellen anfängt.
    Notes: Abstract Thermal decomposition of bis 2-amino-5-phenyl-1,3,4-thiadiazole copper(II) sulphate has been studied by TG, DTA and DTG. The electrical conductivity of the compound in the solid state have also been measured at different temperatures. It is believed that decomposition is a nucleation controlled process and starts at the site of defects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01915160
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