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  • 1
    Electronic Resource
    Electronic Resource
    Monothio-.beta.-diketonates of lanthanides. 2. 3-Mercapto-1,3-diphenylprop-2-en-1-one chelates of lanthanides (1976)
    s.l. : American Chemical Society
    Inorganic chemistry 15 (1976), S. 2291-2293 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50163a060
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  • 2
    Electronic Resource
    Electronic Resource
    Metal complexes of sulfur-nitrogen chelating agents. 7. N,N'-Ethylenebis(amino-1-cyclopentenedithiocarboxylate) complexes of nickel(II), palladium(II), cobalt(II), and copper(II) (1978)
    s.l. : American Chemical Society
    Inorganic chemistry 17 (1978), S. 191-193 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50179a037
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  • 3
    Electronic Resource
    Electronic Resource
    Freeze Preservation of Cultured Plant Cells (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 34 (1975), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A slow rate of cooling (1–2°C/min) is essential for high survival during the freezing phace. Death of cells during this phase takes place at temperatures below the freezing point of the suspending media, predominantly in the temperature range 10°C to −50°C. In the absence of cryoprotectants survival drops to zero between −30°C and −40°C. Fast thawing (water bath at 37°C giving a rate of temperature rise of 120°C/min between −50°C and −10°C) yields the highest recovery of viable cells. An interaction between cooling rate and thawing rate was demonstrated; this served to emphasize the importance of fast thawing. Under the best conditions realized in these experiments the percentage survival of cells cooled to −196°C was for carrot 70–75%, for belladonna 30–40% and for sycamore 20–25%. Storage for long periods (up to 10 months) at −196°C did not lead to any decline in percentage survival. Carrot cultures which had been stored for 10 months at −196°C showed no change in cell morphology or growth potential in culture and retained embryogenic potential.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1975.tb03833.x
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  • 4
    Electronic Resource
    Electronic Resource
    Freeze Preservation of Cultured Plant Cells (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 34 (1975), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A basic technique for successful freeze preservation and storage at -196°C of cultured plant cells and an assay of percentage survival following the freezing-storage-thawing procedure are described. These techniques have been applied to suspension cultures of carrot (3 cell lines), belladonna and sycamore. Dimethyl sulfoxide (DMSO) and glycerol, when appropriately applied, were the most effective cryoprotectants tested. Although these cryoprotectants were of low toxicity and did not cause alterations in the cytology and growth potential of the recovered cells, the cell lines differed in their sensitivity to the toxicity of these cryoprotectants. Small meristematic cells survived the freezing-thawing procedure better than larger more highly vacuolated cells. Specific differences in survival are in part explained in terms of differences in cell morphology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1975.tb03832.x
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  • 5
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    Unknown
    RAO, "Studies in Family Planning: India" (Book Review) (1976)
    Ann Arbor, Mich., etc., : Periodicals Archive Online (PAO)
    Journal of Asian Studies. 36:1 (1976:Nov.) 180 
    Details
    ISSN: 0021-9118
    Topics: Political Science , Economics
    Description / Table of Contents: "South Asia"
    Notes: Book Reviews
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:1113-1976-036-01-000062
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  • 6
    Electronic Resource
    Electronic Resource
    On mechanical response in a free piezoelectric plate subjected to a prescribed diffusion and with varied voltage input (1976)
    Springer
    Czechoslovak journal of physics 26 (1976), S. 1066-1072 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The present note seeks to investigate the mechanical response in a free piezoelectric plate subjected to a prescribed diffusion and having various types of voltage input across it.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01587455
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  • 7
    Electronic Resource
    Electronic Resource
    Thermal analysis of poly(methyl methacrylate)-copper composite (1976)
    Springer
    Journal of thermal analysis and calorimetry 9 (1976), S. 395-400 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé On décrit les caractéristiques thermiques de composites du polyméthylméthacrylate avec le cuivre, parmi lesquelles l'ordre de réaction et l'énergie d'activation de la seconde étape de la pyrolyse qui est la principale. Les particules du métal distribuées au hasard dans la matrice du polymère peuvent constituer des voies pour le transfert de chaleur qui déterminent le mécanisme de la dégradation thermique.
    Abstract: Zusammenfassung Die thermischen Charakteristika der Verbindungen von Polymethylmethacrylat mit Kupfer werden zusammen mit der Reaktionsordnung und der Aktivierungsenergie der grösseren zweiten Stufe der Pyrolyse beschrieben. Die zufallsbestimmt verteilten Metallpartikel in der Polymermatrix können Wege des Wärmetransfers formen, welche den Mechanismus der thermischen Zersetzung bestimmen.
    Notes: Abstract Thermal characteristics of the composites of poly(methyl methacrylate) and copper are reported, including the order of reaction and activation energy of the major second stage of pyrolysis. The randomly-distributed metal particles in the polymer matrix can form paths for heat transfer which determine the mechanism of thermal degradation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01909404
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of warm working on the precipitation of vanadium carbide in a medium carbon austenitic steel (1976)
    Springer
    Journal of materials science 11 (1976), S. 1320-1329 
    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 Electrical resistance measurements and electron microscope observations have been used to interpret the ageing characteristics of a 0.4% carbon-24% manganese-0.7% vanadium steel in the temperature range 550 to 700° C. It has been shown that vanadium carbides form in a diffusion controlled process, activation energy 295 kJ mol−1, producing precipitate densities in the matrix of ∼1016 cm−3. The kinetics suggest that nucleation depends on the existence of critical sized substitutional solute atom-vacancy clusters and that once the incubation period has elapsed the nucleation rate falls rapidly and beyond 0.1 fraction transformed further reaction takes place by growth only. Increasing amounts of deformation at the ageing temperature reduces the incubation period and total reaction time, progressively. The relevance of these results to help explain the ausforming behaviour of low alloy steel is stressed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00545153
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  • 9
    Electronic Resource
    Electronic Resource
    Kinetics of niobium carbide precipitation in a low carbon austenitic steel (1975)
    Springer
    Journal of materials science 10 (1975), S. 1137-1148 
    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 An examination has been made of the kinetics of niobium carbide precipitation in a 18-10-1 austenitic stainless steel in the temperature range 650 to 750° C. Electrical resistance-time plots, thin film electron microscopy and hardness measurements have been employed to follow the ageing sequence. In these alloys the carbides precipitate on undissociated dislocations and in association with stacking faults; these processes are diffusion controlled and have an activation energy of ∼318 kJ mol−1. Prior to the reaction beginning a clear incubation period existed, e.g. ∼30 h at 650° C and 20 min at 750° C. During the first 10% transformation the carbide nucleation rate increases and the associated faults nucleate and grow rapidly. The carbide nucleation rate appears to peak around this level and then falls away gradually to zero around 70% transformation. At this latter stage fault growth ceases, and transformation continues by a carbide growth process. The age-hardening peak occurs much beyond the end of the reaction by which time precipitate coarsening is in evidence. The precise effect mechanical deformation has upon stacking fault formation depends to a major extent on the niobium supersaturation in the quenched alloy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00541394
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  • 10
    Electronic Resource
    Electronic Resource
    Hydrodesulfurization of dibenzothiophene catalyzed by sulfided CoO-MoO3γ-Al2O3: The reaction network (1978)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 24 (1978), S. 1015-1021 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Kinetics experiments have determined the reaction network in the hydrodesulfurization of dibenzothiophene catalyzed by sulfided CoO-MoO3/γ-Al2O3 at 573°K and 102 atm. The predominant reaction is a direct sulfur extrusion, giving biphenyl and hydrogen sulfide; the biphenyl is subsequently hydrogenated slowly to give cyclohexylbenzene and then bicyclohexyl. Dibenzothiophene also undergoes a primary hydrogenation reaction preceding sulfur removal, but it is about one thousand times slower than the sulfur extrusion reaction.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690240611
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