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  • 2000-2004  (2)
  • 1990-1994  (7)
  • 1965-1969  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Rudolph, Lloyd I.; Rudolph, Susanne Hoeber: In Pursuit of Lakshmi: The Political Economy of the Indian State : Chicago, The University of Chicago Press, 1987 (1990)
    Cambridge : Cambridge University Press
    Modern Asian studies 24 (1990), S. 823-825 
    Details
    ISSN: 0026-749X
    Source: Cambridge Journals Digital Archives
    Topics: Ethnic Sciences , History , Political Science , Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1017/S0026749X0001060X
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  • 2
    Electronic Resource
    Electronic Resource
    X-ray crystal structure analysis of nitroxazepine: 10-(3-dimethylaminopropyl)-2-nitro-10,11-dihydrodibenz [b,f][l,4]oxazepin-11-one (1992)
    Springer
    Journal of chemical crystallography 22 (1992), S. 579-583 
    Details
    ISSN: 1572-8854
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The title compound, C18H19O4N3,M r=341, the base (I) of the dibenzoxazepine anti-depressant drug Sintamil, crystallizes in the orthorhombic space group,Pbca withZ=8 in a cella=8.636(2),b=23.687(3),c=16.787(3)Å,V c=3434 Å3. The structure was solved by direct methods and refined toR=0.102 (R w=0.093) with 1348 observed CuKα reflections. The tricyclic framework takes up a saddle shape with the heterocyclic ring in boat conformation; the flanking planar aromatic rings make angles 148.2(3), 150.8(3)° with the central ring plane, compared with 143.5(5), 158.1(5)° in Sintamil monohydrate (II). BothI andII have extended-CNMe2 side chains (with appreciable thermal motion); this conformation, and the distances of the -N(CH3)3 nitrogen to the centers of aromatic rings (6.4 and 7.8 Å inI), are consistent with inhibition of uptake mechanisms underlying the pharmacological action.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01161343
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  • 3
    Electronic Resource
    Electronic Resource
    The co-existence of elations and homologies of prime order (1994)
    Springer
    Geometriae dedicata 51 (1994), S. 149-162 
    Details
    ISSN: 1572-9168
    Keywords: 51A05 ; 51A10
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract N. Krier and J. C. D. S. Yaqub have proved that if a projective plane π admits an involutory homology and an involutory elation, then π does not belong to the Lenz-Barlotti class I1, and belongs to the class I2. In this paper, we find the classification of projective planes having a homology of orderp and an elation of orderq, wherep andq are primes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01265326
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  • 4
    Electronic Resource
    Electronic Resource
    Franck-condon factors and -centroids for certain band systems of astrophysical molecular ions CN+ and N+2 (2000)
    Springer
    Astrophysics and space science 274 (2000), S. 725-731 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Franck-Condon factors and r-centroids, which are very closelyrelated to relative vibrational transition probabilities, have beenevaluated by the more reliable numerical integration procedure forthe bands of c 1 Σ - a 1 Σ and f 1 Σ - a 1 Σ systems of CN + and C 2 Σ+ u- X 2 Σ+ g and D 2 Πg- A 2 Πu systems of N + 2 molecular ions of astrophysical interest,using a suitable potential.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026541821580
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  • 5
    Electronic Resource
    Electronic Resource
    Nucleating Agents in Polypropylene (2000)
    Springer
    Journal of thermal analysis and calorimetry 59 (2000), S. 497-508 
    Details
    ISSN: 1572-8943
    Keywords: Avrami equation ; crystallization ; dibenzylidene sorbitol ; DSC ; isothermal kinetics ; nucleating agents ; nucleation ; pine crystal ; polypropylene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The effects of nucleating agents such as dibenzylidene sorbitol (DBS) (a derivative of sorbitol), pine crystal 1500, sodium and potassium benzoates in commercial grade isotactic polypropylene iPP are studied using differential scanning calorimetry (DSC). Isothermal crystallization kinetics of polypropylene to the alpha phase have been analyzed using Avrami's model. Results indicate that dibenzylidene sorbitol and pine crystal are very effective in increasing the crystallization temperature of the polymer and number of nuclei formed during crystallization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010197609840
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  • 6
    Electronic Resource
    Electronic Resource
    Grain growth in 18Ni 1800 MPa maraging steel (1991)
    Springer
    Journal of materials science 26 (1991), S. 4155-4159 
    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 grain-growth behaviour in 18Ni8Co5MoO.4Ti maraging steel was investigated in the temperature range 1123–1323 K. Grain sizes were estimated by measuring the diameter of the equivalent area of the individual grains directly on the optical microscope using a calibrated digital eyepiece. Grain-boundary migrations and substructure analyses were done using an electron microscope. These studies indicate that the overall grain growth in the steel follows the relationship ΔD=ktn where ΔD is the increase in the grain size. However, during the initial stage, a “time lag” for the grain growth to start is observed which is attributed to the presence of highly dislocated austenitic matrix on annealing. Evidence of abnormal grain growth is also seen after annealing at 1173 K for 480 min and at 1123 K for 300 min. The growth exponents for the normal and abnormal grain growth were found to be 0.40–0.44 and 0.90–2.0, respectively. One significant deviation observed in the study wasn decreasing from 0.44-0.40 at higher temperatures during the normal growth. This has been critically discussed in the light of the unique transformation characteristics of the steel. The activation energy for growth was calculated to be 60.0–62.5 kcal mol−1, indicating the overall growth is controlled by self diffusion in γ-iron.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02402961
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  • 7
    Electronic Resource
    Electronic Resource
    Grain growth in 18Ni 1800 MPa maraging steel (1991)
    Springer
    Journal of materials science 26 (1991), S. 4155-4159 
    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 grain-growth behaviour in 18Ni8Co5MoO.4Ti maraging steel was investigated in the temperature range 1123–1323 K. Grain sizes were estimated by measuring the diameter of the equivalent area of the individual grains directly on the optical microscope using a calibrated digital eyepiece. Grain-boundary migrations and substructure analyses were done using an electron microscope. These studies indicate that the overall grain growth in the steel follows the relationship ΔD=ktn where ΔD is the increase in the grain size. However, during the initial stage, a “time lag” for the grain growth to start is observed which is attributed to the presence of highly dislocated austenitic matrix on annealing. Evidence of abnormal grain growth is also seen after annealing at 1173 K for 480 min and at 1123 K for 300 min. The growth exponents for the normal and abnormal grain growth were found to be 0.40–0.44 and 0.90–2.0, respectively. One significant deviation observed in the study wasn decreasing from 0.44-0.40 at higher temperatures during the normal growth. This has been critically discussed in the light of the unique transformation characteristics of the steel. The activation energy for growth was calculated to be 60.0–62.5 kcal mol−1, indicating the overall growth is controlled by self diffusion in γ-iron.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00553503
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  • 8
    Electronic Resource
    Electronic Resource
    Microstructural aspects of weld repair in 18 nickel 1800 MPA maraging steel (1992)
    Springer
    Journal of materials science 27 (1992), S. 3817-3820 
    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 study of the microstructural aspects of the maraging steel weld repair has become important as this material finds extensive applications in aerospace and other strategic areas. The details available on these at present are very limited. During one of the fabrication trials of a large pressure vessel made of 18 Ni 1800 MPa maraging steel plates, 7.8 mm thick, defects were observed in the welds which were to be repaired. This called for simulated experiments. The microstructural variations observed in the repaired areas were the result of the repeated thermal cycles they had undergone. Based on this microstructural evidence, a new diagram depicting the newly formed weld zones is constructed from which the mechanical properties of the repair welds can be predicted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00545463
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  • 9
    Electronic Resource
    Electronic Resource
    Processing characteristics of Al/W composite under 1 g conditions (1994)
    Springer
    Journal of materials science 29 (1994), S. 5719-5724 
    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 segregation features and interface characteristics in an Al/W composite system processed through liquid metallurgy technique under 1 g conditions has been studied. The effect of various melting parameters on the Al/W system containing 60 wt% (about 20 at%) tungsten particles, was investigated and the consequent metallographic features of these composites were studied. Although most of the segregation of tungsten particles was observed at the bottom of the sample, segregation was also noticed towards the side walls and the top portion of the sample. The segregation pattern is explained in terms of force under Stoke's law and conventional convection. The formation of intermetallic compounds between aluminium and tungsten, and limited solubility between these two elements, is also reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00349971
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  • 10
    Electronic Resource
    Electronic Resource
    (4-phenyl-2-thiazolyl)-acetone and its enamines: Synthesis and NMR. SpectraContribution No. 134 from CIBA Research CentreVorgetragen am 28. Sept. 1968 an der Herbstversammlung der Schweiz. Chem. Gesellschaft und auf English veröffentlicht laut besonderem Beschluss des Redaktionskomitees. (1968)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 51 (1968), S. 2102-2110 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The synthesis of (4-phenyl-2-thiazolyl)-acetone and its enamines is reported. Their NMR. spectra are discussed.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19680510831
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