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  • kinetics  (2)
  • *Chromosomes, Human, 4-5  (1)
  • Amino Acid Sequence
  • 1980-1984  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Oxidation of ternary Co-Cr-W alloys (1983)
    Springer
    Oxidation of metals 20 (1983), S. 37-65 
    Details
    ISSN: 1573-4889
    Keywords: Alloy oxidation ; cobalt-chromium-tungsten ; scale formation ; kinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Oxidation rates in air at 1000–1250°C are reported for a series of Co-Cr-W alloys with 34–40 wt. % Cr and up to 10 wt. % W. Alloys with larger W contents exhibited slower oxidation rates and their parabolic rate constants agreed well with those for binary and ternary, Cr2O3 protected, Ni-base and Co-base alloys in the Co-Cr and Ni-Cr-W systems. The resulting scales were characterized by optical and scanning electron metallography, and electron microprobe analysis. The favorable effect of W additions to a Cr2O3-forming Co-Cr base alloy was the opposite of that reported for Ni-Cr-W alloys. The resupply of Cr to a Cr-depleted matrix beneath a protective CrO3 scale is achieved by the dissolution (denuding) of Cr-rich second phases in the Co-Cr-W alloys. Thus, the internal oxidation of Cr beneath the Cr2O3 scale is avoided for high W alloys. No catastrophic failure by liquid phase formation was observed for high-W alloys oxidized 20 hr at 1250°C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00658126
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Oxidation of Ni-Cr-W ternary alloys (1980)
    Springer
    Oxidation of metals 14 (1980), S. 85-108 
    Details
    ISSN: 1573-4889
    Keywords: alloy oxidation ; nickel-chromium-tungsten ; scale formation ; kinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The oxidation behavior in air at 1000–1250°C of four Ni-Cr-W alloys containing sufficient chromium content (∼22 at. % Cr) for protective Cr2O3 formation in a binary Ni-Cr alloy is reported. Generally for alloys high in W (10 and 16 at.% W), the rejection of tungsten into the alloy beneath the scale introduced a steep Cr concentration gradient and slower Cr diffusion such that continuous precipitation of Cr2O3 internal oxides prevented the formation of a Cr2O3 protective scale. The alloy most dilute in W (1.6 at. % W) formed a protective scale at short times with little outer NiO scale, but scale fractures led to internal oxidation and rapid nonprotective kinetics. After an initially rapid oxidation increment to form NiO, the 3 at.% Walloy formed a protective Cr2O3 scale with about the same steady-state parabolic kinetics as a binary Ni-30Cr alloy. The effect of ternary Wadditions on the development of Cr2O3 scales on Ni-Cr-W alloys is considered as a ternary analog to Wagner's description of the oxidation of Cu-Pt or Cu-Pd alloys.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00603987
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  • 3
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    The human homologs of the raf (mil) oncogene are located on human chromosomes 3 and 4 (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-01-06
    Description: Two human genes that are homologous to both the murine transforming gene (oncogene) v-raf and the chicken transforming gene v-mil have been mapped by means of human-rodent somatic cell hybrids to human chromosomes previously devoid of known oncogenes. One gene, c-raf-2, which appears to be a processed pseudogene, is located on chromosome 4. The other gene, c-raf-1, which appears to be the active gene, is located on chromosome 3 and has been regionally mapped by chromosomal in situ hybridization to 3p25. This assignment correlates with specific chromosomal abnormalities associated with certain human malignancies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bonner, T -- O'Brien, S J -- Nash, W G -- Rapp, U R -- Morton, C C -- Leder, P -- New York, N.Y. -- Science. 1984 Jan 6;223(4631):71-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6691137" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/genetics ; Animals ; Chromosome Aberrations ; Chromosome Mapping ; *Chromosomes, Human, 1-3 ; *Chromosomes, Human, 4-5 ; Cricetinae ; Humans ; Hybrid Cells ; Kidney Neoplasms/genetics ; Lung Neoplasms/genetics ; Male ; Mice ; Nucleic Acid Hybridization ; *Oncogenes
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Unknown
    Primary structure of v-raf: relatedness to the src family of oncogenes (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-04-20
    Description: A replication-defective, acute transforming retrovirus (murine sarcoma virus 3611) was isolated from mouse and molecularly cloned. The nucleotide sequence of 1.5 kilobases encompassing the transforming gene (v-raf) was determined. This sequence, which predicts the amino acid sequence of a gag-raf fusion protein, terminates 180 nucleotides from the 3' end of the acquired cellular sequence. Comparison of the predicted amino acid sequence of v-raf with the predicted amino acid sequences of other oncogenes reveals significant homologies to the src family of oncogenes. There is a lack of homology within the sequence of the tyrosine acceptor domain described for the phosphotyrosine kinase members of the src family of transforming proteins. Phylogenetic arrangement of this family of oncogenes suggests that tyrosine-specific phosphorylation may be a recently acquired activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mark, G E -- Rapp, U R -- New York, N.Y. -- Science. 1984 Apr 20;224(4646):285-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6324342" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; Biological Evolution ; Cell Transformation, Neoplastic ; Cell Transformation, Viral ; DNA Restriction Enzymes ; Gene Products, gag ; *Genes, Viral ; Mice ; *Oncogenes ; Protein Biosynthesis ; Protein Kinases/metabolism ; Protein-Tyrosine Kinases ; Sarcoma Viruses, Murine/*genetics ; Transcription, Genetic ; Tyrosine/metabolism ; Viral Proteins/analysis/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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