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  • 1
    Electronic Resource
    Electronic Resource
    Finite Element Analysis of Cable Products for High Impaction and Fatigue Resistance with Nonlinear Material Models (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 26-28 (Oct. 2007), p. 1045-1048 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This paper presents experimental and numerical simulation for deformation and fatigue lifeprediction of various cables, such as electrical, optical and network cables. The cable damage isproduced by the tensile, bending and torsional action under moving and fixing condition, and bydirect external impact. To obtain material responses of the cable, uniaxial tensile tests anddrop-weight impact tests were adopted, and the nonlinear constitutive equations based on variousstrain energy potentials or material models were employed to analyze deformation of polymer sheathand metallic armor layer of the cable. Finite element results were compared with experimental datafor deformation and impact absorption energy of the cable during direct external impact. Also, fatiguestrength of the cable was predicted from variation of calculated stress level under tensile conditions.Fractured surface of the cable were analyzed by scanning electron microscopy (SEM)
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.1045.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    The Influence of SiC Powder Source on 6H-SiC Single Crystals Grown by the Sublimation Method (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 527-529 (Oct. 2006), p. 91-94 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: We examined the influence of thermal treatment of high-purity SiC powder on 6H-SiCcrystal growth. The doping concentration was decreased by increasing either thermal treatmenttemperature or time. It was also found that the defects such as micropipes and planar cavities weregenerated under relatively long treatment time (13 hours), because SiC powders were significantlygraphitized. A 6H-SiC crystal grown by using SiC source treated at 2100oC for 6 hours revealed thebest result with relatively low micropipes. For the effects of thermal treated sources on theimprovement of crystallinity, it could be explained that both the amount of alpha phase transformedfrom high-purity beta-SiC powder and the elimination of porous powders in SiC powder had aninfluence on the removal of silicon droplets, resulting in higher Si vapor pressure at the initial growthstage
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/13/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.527-529.91.pdf
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  • 3
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    Unknown
    Distributive Effects of Social Security and Pension Benefits (1989)
    Chicago : Periodicals Archive Online (PAO)
    Social service Review. 63:3 (1989:Sept.) 335 
    Details
    ISSN: 0037-7961
    Topics: Sociology
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:1205-1989-063-03-000001
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  • 4
    Electronic Resource
    Electronic Resource
    MHC antigen expression by melanomas recovered from mice treated with allogeneic mouse fibroblasts genetically modified for interleukin-2 secretion and the expression of melanoma-associated antigens (1994)
    Springer
    Cancer immunology immunotherapy 38 (1994), S. 185-193 
    Details
    ISSN: 1432-0851
    Keywords: Immunoselection ; B16 melanoma ; MHC antigens ; Interleukin-2 ; Melanoma-associated antigens
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Recent approaches toward the immunotherapy of neoplastic disease involve the introduction of expression-competent genes for interleukin-2 (IL-2) into autologous malignant cells. Treatment of tumor-bearing experimental animals with the IL-2-secreting cells successfully induces partial and at times complete remissions. In most instances, however, although delayed, progressive tumor growth continues. Here, certain of the characteristic of B16 melanomas (H-2b) persisting in C57BL/6 mice (H-2b) treated with an IL-2-secreting, melanoma-antigen-positive cellular immunogen (RLBA-IL-2 cells) are described. Unlike the melanoma cells first injected, B16 cells recovered from mice treated with RLBA-IL-2 cells were deficient in the experssion of MHC class I, but not class II determinants. Deficient MHC class I expression correlated with the cells' resistance to cytotoxic T lymphocytes (CTL) from the spleens of mice immunized with RLBA-IL-2 cells. Melanomas persisting in mice treated with non-IL-2-secreting, melanoma-antigen-positive cell constructs (RLBA-ZipNeo cells) were also deficient in the expression of MHC class I determinants, and the melanoma cells were resistant to CTL from mice immunized with RLBA-ZipNeo cells. Thus, the expression of melanoma-associated antigens rather than IL-2-secretion correlated with deficient MHC class I expression by the persistent melanomas. This point was substantiated by the expression of MHC class I antigens by melanomas persisting in mice treated with IL-2-secreting, melanoma-antigen-negative LM cells (LM-IL-2); it was equivalent to that of melanomas in untreated mice. The involvement of MHC class I antigens in the immune resistance of persistent melanoma cells from mice treated with the melanoma-autigen-positive immunogens was indicated by the effect of interferon γ (IFNγ) orN-methyl-N′-nitro-N-nitrosoguanidine (MNNG) on the susceptibility of the cells to anti-melanoma CTL. Treatment of the resistant melanomas with IFNγ or MNNG stimulated MHC class I antigen expression and restored the cells' sensitivity to CTL from mice immunized with IL-2-secreting or nonsecreting, melanoma-antigen-positive cellular immunogens. Prior treatment of the treated cells with antibodies to MHC class I determinants inhibited the cells' susceptibility to CTL from mice immunized with RLBA-IL-2 cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01525640
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  • 5
    Electronic Resource
    Electronic Resource
    MHC antigen expression by melanomas recovered from mice treated with allogeneic mouse fibroblasts genetically modified for interleukin-2 secretion and the expression of melanoma-associated antigens (1994)
    Springer
    Cancer immunology immunotherapy 38 (1994), S. 185-193 
    Details
    ISSN: 1432-0851
    Keywords: Key words: Immunoselection – B16 melanoma – MHC antigens – Interleukin-2 – Melanoma-associated antigens
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Recent approaches toward the immunotherapy of neoplastic disease involve the introduction of expression-competent genes for interleukin-2 (IL-2) into autologous malignant cells. Treatment of tumor-bearing experimental animals with the IL-2-secreting cells successfully induces partial and at times complete remissions. In most instances, however, although delayed, progressive tumor growth continues. Here, certain of the characteristics of B16 melanomas (H-2b) persisting in C57BL/6 mice (H-2b) treated with an IL-2-secreting, melanoma-antigen-positive cellular immunogen (RLBA-IL-2 cells) are described. Unlike the melanoma cells first injected, B16 cells recovered from mice treated with RLBA-IL-2 cells were deficient in the expression of MHC class I, but not class II determinants. Deficient MHC class I expression correlated with the cells’ resistance to cytotoxic T lymphocytes (CTL) from the spleens of mice immunized with RLBA-IL-2 cells. Melanomas persisting in mice treated with non-IL-2-secreting, melanoma-antigen-positive cell constructs (RLBA-ZipNeo cells) were also deficient in the expression of MHC class I determinants, and the melanoma cells were resistant to CTL from mice immunized with RLBA-ZipNeo cells. Thus, the expression of melanoma-associated antigens rather than IL-2-secretion correlated with deficient MHC class I expression by the persistent melanomas. This point was substantiated by the expression of MHC class I antigens by melanomas persisting in mice treated with IL-2-secreting, melanoma-antigen-negative LM cells (LM-IL-2); it was equivalent to that of melanomas in untreated mice. The involvement of MHC class I antigens in the immune resistance of persistent melanoma cells from mice treated with the melanoma-antigen-positive immunogens was indicated by the effect of interferon γ (IFNγ) or N-methyl-N′-nitro-N-nitrosoguanidine (MNNG) on the susceptibility of the cells to anti-melanoma CTL. Treatment of the resistant melanomas with IFNγ or MNNG stimulated MHC class I antigen expression and restored the cells’ sensitivity to CTL from mice immunized with IL-2-secreting or non-secreting, melanoma-antigen-positive cellular immunogens. Prior treatment of the treated cells with antibodies to MHC class I determinants inhibited the cells’ susceptibility to CTL from mice immunized with RLBA-IL-2 cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01525640
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  • 6
    Electronic Resource
    Electronic Resource
    Degradation of ogranic sulfur compounds and the reduction of dibenzothiophene to biphenyl and hydrogen sulfide byDesulfovibrio desulfuricans M6 (1990)
    Springer
    Biotechnology letters 12 (1990), S. 761-764 
    Details
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract The microbial degradation of organic sulfur compounds was studied in the anaerobic conditions usingDesulfovibrio desulfuricans M6, a sulfate-reducing bacterium isolated from soil. Biphenyl was the major dibenzothiophene degradation product.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01024736
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  • 7
    Electronic Resource
    Electronic Resource
    Petroleum desulfurization byDesulfovibrio desulfuricans M6 using electrochemically supplied reducing equivalent (1990)
    Springer
    Biotechnology letters 12 (1990), S. 757-760 
    Details
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Desulfovibrio desulfuricans M6 selected for its ability to degrade dibenzothiophene was cultured in an electrochemical cell system. The ratio of carbon dioxide production to that of hydrogen sulfide was 2.13 in the control culture, whilst the ratios of the cultures made in the cathode compartment and the anode compartment were 1.54 and 3.13, respectively. WhenD. desulfurican M6 was incubated in a sulfate-free medium C with Kuwait crude oil and methyl viologen as an electron mediator in the cathode compartment, the sulfur content of crude oil was decreased with the production of hydrogen sulfide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01024735
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  • 8
    Electronic Resource
    Electronic Resource
    Electron flow shift inClostridium acetobutylicum fermentation by electrochemically introduced reducing equivalent (1988)
    Springer
    Biotechnology letters 10 (1988), S. 123-128 
    Details
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Electrochemical energy as a source of reducing equivalent was applied to the cultures ofClostridum acetobutylicum to understand the effects of the pressure by reducing equivalent on anaerobic bacteria. The fermentation byC. acetobutylicum with methyl viologen and electrochemical energy produced more butanol (up to 26%) than the control culture, whilst less acetone (up to 25%) was produced. But no effect was observed on the growth of the culture. These results were indirectly supported byin vitro electrochemical reduction of NAD+ and artificial electron carriers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01024638
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