ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Enzymatic Synthesis of Optically Pure 1-Carbacephem Compounds (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 434 (1984), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1984.tb29828.x
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Simultaneous transfer of heat and mass occurring in casting process (1983)
    Springer
    Heat and mass transfer 17 (1983), S. 107-113 
    Details
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung Es wird der gleichzeitige Transport von Wärme und Wasser in einer Form aus Grünsand kurze Zeit nach dem Eingießen von flüssigem Metall in den Hohlraum untersucht. Die maßgebenden Gleichungen werden mit Hilfe der finiten Differenzen gelöst und die Ergebnisse zur Überprüfung mit Experimentalwerten verglichen. Berücksichtigt werden die Wirkung der thermischen Stoffwerte und der Durchlässigkeit der Form, der Menge des enthaltenen Wassers, der Heiztemperatur (also der Temperatur des flüssigen Metalls) und anderer Faktoren der Wärmeübertragung zwischen flüssigem Metall und Form, des Druckanstiegs in der Forme und der Entwicklung einer ausgetrockneten Zone um den Guß. Zur Vorhersage der Übertragungsvorgänge werden empirische Gleichungen mit Hilfe dimensionsloser Parameter entwickelt.
    Notes: Abstract Studied in this paper is simultaneous transfer of heat and water vapor which takes place in a green sand mold in a very short period of time after pouring a molten metal in its cavity. Governing equations describing heat and mass transfer in a mold are solved by finite difference method and the results are compared with the actually measured values to examine the validity of the calculated results. The effect of thermal properties and permeability of the mold, the amount of water contained, the heating temperature (i.e., temperature of casting metal) and other factors on the heat transfer rate at the interface between the molten metal and the mold, the pressure rise in the mold and the development of dried zone around the casting are investigated to propose some empirical relations available for predicting those transfer phenomena by using dimensionless parameters presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01007226
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Pharmacological studies on a plant lectin, Aloctin A. I. Growth inhibition of mouse methylcholanthrene-induced fibrosarcoma (Meth A) in ascites form by Aloctin A (1981)
    Springer
    Cellular and molecular life sciences 37 (1981), S. 1186-1187 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A glycoprotein isolated fromAloe arborescens Mill markedly inhibited the growth of a syngeneic transplantable fibrosarcoma of mice, Meth A, in ascites form. There is evidence that the inhibition mechanism is host-mediated and not a direct toxic effect on the tumor cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989910
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Positive inotropic and negative chronotropic effect of pantethine on isolated cardiac muscle of guinea-pigs (1983)
    Springer
    Cellular and molecular life sciences 39 (1983), S. 1028-1030 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary It was demonstrated that pantethine, a component of co-enzyme A, produces positive inotropic and negative chronotropic actions in isolated cardiac muscle preparations from guinea-pigs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989786
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Low temperature synthesis of glassy solids of the system Al2O3-P2O5-SiO2 (1984)
    Springer
    Journal of materials science 19 (1984), S. 396-402 
    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 Glassy solids of the system Al2O3-P2O5-SiO2, which have not been obtainable because of the devitrification of glass during the cooling process after melting, were obtained by the gel method. After the gels of the system Al2O3-P2O5-SiO2 were prepared from AlCl3·6H2O, H3PO4 and Si(OC2H5)4, they were heat treated up to 800° C to obtain glassy solids. In SiO2 concentrations ranging from 75 to 82 mol % in batch compositions, non-porous transparent solids were obtained, while in SiO2 concentrations above 87 mol %, porous transparent solids were obtained. Tridymite was precipitated because of the crystallization of glassy solids during heat treatment above 800° C. It depended upon the microstructure of the gels whether non-porous glassy solids were obtained or not. The thermal expansion coefficients of the glassy solids were greatly dependent upon the concentration of P2O5, ranging from 1.7×10−6 to 4.2×10−6 (1/° C).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00553562
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Low temperature synthesis of glassy solids of the system Al2O3-P2O5-SiO2 (1984)
    Springer
    Journal of materials science 19 (1984), S. 396-402 
    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 Glassy solids of the system Al2O3-P2O5-SiO2, which have not been obtainable because of the devitrification of glass during the cooling process after melting, were obtained by the gel method. After the gels of the system Al2O3-P2O5-SiO2 were prepared from AlCl3·6H2O, H3PO4 and Si(OC2H5)4, they were heat treated up to 800° C to obtain glassy solids. In SiO2 concentrations ranging from 75 to 82 mol % in batch compositions, non-porous transparent solids were obtained, while in SiO2 concentrations above 87 mol %, porous transparent solids were obtained. Tridymite was precipitated because of the crystallization of glassy solids during heat treatment above 800° C. It depended upon the microstructure of the gels whether non-porous glassy solids were obtained or not. The thermal expansion coefficients of the glassy solids were greatly dependent upon the concentration of P2O5, ranging from 1.7×10−6 to 4.2×10−6 (1/° C).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02403225
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Catalytic reactions of hydrocarbon with carbon dioxide over metallic catalysts (1984)
    Springer
    Reaction kinetics and catalysis letters 24 (1984), S. 253-257 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Каталитическая реакция между углеводородом и двуокисью углерода, напр., CH4+CO2→2CO+2H2 или C6H5CH3+CO2→C6H6+2CO+X2, была исследована на различных катализаторах при атмосферном давлении. В общем, катализатор Rh−Al2O3 оказался превосходным по активности и селективности. Скорость реакции умеренно зависит от давления двуокиси углерода, в то время как слабо зависит от давления углеводорода.
    Notes: Abstract The catalytic reaction between hydrocarbons and carbon dioxide, e.g. CH4+ +CO2→2CO+2H2 and C6H6CH3+CO2→C6H6+2CO+H2, has been investigated over various metallic catalysts under atmospheric pressure. In general, Rh−Al2O3 catalyst was found to be excellent in activity and selectivity. The reaction rates were moderately dependent on the pressure of carbon dioxide, whereas it was little influenced by the pressure of hydrocarbon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02093437
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Isolation and mapping of a new suppressor mutation of an early sporulation gene spo0F mutation in Bacillus subtilis (1983)
    Springer
    Molecular genetics and genomics 192 (1983), S. 330-334 
    Details
    ISSN: 1617-4623
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We constructed an spo0F deletion (spo0FΔS) mutant of Bacillus subtilis by inserting a chromosomal segment carried by plasmid pUBSFΔS. This plasmid carries a 0.7-kilobase pair deletion that removes the spo0F promoter and a part of the structural gene. We used the spo0F deletion mutant to isolate a new intergenic suppressor of the spo0F phenotype, designated sof1. The sof1 suppressor completely restores the sporulation ability of all spo0F defective mutants tested, including spo0F77, spo0F221 and spo0FΔS. The sof1 suppressor maps to the left of lys1 on the B. subtilis chromosome, in a region rich in sporulation markers and distant from the spo0F locus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00392171
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Synthesis and thermal properties of poly(phenoxy trifluoroethoxy phosphazenes) (1983)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 119 (1983), S. 209-212 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Copolymers were prepared by the reaction of poly(dichloro phosphazene), phenoxide, and trifluoro ethoxide in THF. Elastic copolymers having lower Tg than that of poly(trifluoroethoxy phosphazene) were formed when the ratio of phenoxide: trifluoro ethoxide was between 0.5:1.5 and 1.5:0.5.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1983.051190117
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    facet.materialart.
    Unknown
    Activation of a translocated c-myc gene: role of structural alterations in the upstream region. (1984)
    National Academy of Sciences
    Details
    Publication Date: 1984-11-01
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...