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  • 1
    Electronic Resource
    Electronic Resource
    Modeling laser texturing of silicate glass (2001)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 942-950 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A refined model of a glass laser texturing process used on computer disk substrates is presented. Field equations for fictive temperature and elasto-viscoplastic strain in the glass are numerically integrated over the thermal cycle created with a microsecond CO2 laser pulse. Calculating the fictive temperature change as part of the solution provides for a consistent treatment of glass properties that depend on fictive temperature. The short time scale of the thermal cycle causes the final altered state of fictive temperature in the heat affected zone to be relatively constant over the depth of change, and higher than the initial value by more than 300 K. Plastic strain resulting from thermomechanical stresses and the fictive temperature rise are considered in this description. The model illustrates the rise in the compressive stress caused by initial heating, the relaxation process that occurs in the molten region above the transition temperature, and the subsequent introduction of tensile stress during cooling. At the end of the thermal cycle, the region of glass with altered fictive temperature is left in a state of high tensile stress. The time evolution of surface topography is studied with the model, and shows good agreement with measured dimensions of the final bump geometry over a range of laser pulse energies. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1330550
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  • 2
    Electronic Resource
    Electronic Resource
    Quantitative Determination of Thiabendazole in Fruit Juices and Bulk Juice Concentrates Using a Thiabendazole Monoclonal Antibody (1995)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 43 (1995), S. 1407-1412 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf00053a051
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  • 3
    Electronic Resource
    Electronic Resource
    Disruption of PTEN coupling with 5-HT2C receptors suppresses behavioral responses induced by drugs of abuse (2006)
    [s.l.] : Nature Publishing Group
    Nature medicine 12 (2006), S. 324-329 
    Details
    ISSN: 1546-170X
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] The widespread distribution of the tumor suppressor PTEN (phosphatase and tensin homolog deleted on chromosome 10) in the adult brain suggests its role in a broad range of brain functions. Here we show evidence supporting a physical interaction of PTEN with a region in the third intracellular loop ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nm1349
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  • 4
    Electronic Resource
    Electronic Resource
    Genome-wide transcription analyses in rice using tiling microarrays (2006)
    [s.l.] : Nature Publishing Group
    Nature genetics 38 (2006), S. 124-129 
    Details
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Sequencing and computational annotation revealed several features, including high gene numbers, unusual composition of the predicted genes and a large number of genes lacking homology to known genes, that distinguish the rice (Oryza sativa) genome from that of other fully sequenced model species. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/ng1704
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  • 5
    Electronic Resource
    Electronic Resource
    Characterization of molecular defects in xeroderma pigmentosum group C (1993)
    [s.l.] : Nature Publishing Group
    Nature genetics 5 (1993), S. 413-417 
    Details
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Xeroderma pigmentosum (XP) is a rare autosomal recessive disease of humans characterized by an accelerated chronic degeneration of sun–exposed areas of the body, including an elevated risk of developing cancers of the skin. We recently reported the isolation of a gene XPCC that complements ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/ng1293-413
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  • 6
    Electronic Resource
    Electronic Resource
    A Recursive Test for P-Matrices (2000)
    Springer
    BIT 40 (2000), S. 410-414 
    Details
    ISSN: 1572-9125
    Keywords: P-matrix ; principal minor ; Schur complement ; complexity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The time complexity for testing whether an n-by-n real matrix is a P-matrix is reduced from O(2n n 3) to O(2 n ) by applying recursively a criterion for P-matrices based on Schur complementation. A Matlab program implementing the associated algorithm is provided.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022307527408
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  • 7
    Electronic Resource
    Electronic Resource
    Numerical Simulation of Semi-Solid Magnesium Alloy in Continuous Roll-Casting Process (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 116-117 (Oct. 2006), p. 583-586 
    Details
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: It is significative to link the semi-solid process and continuous roll-casting process (CRP),through which we can get high quality magnesium alloy strips with non-dendritic structure andimprove the overall properties of the products. Furthermore, because CRP of semi-solid metalcombines casting and forming, it shortens the period of technological process. In general, severaltechnical parameters such as the inlet temperature of semi-solid slurry, the heat transfer betweenroll and molten alloy, the roll-casting speed, the position of solidification final point influence onthe strip quality in continuous roll-casting process. Therefore, the effects of the parameter tocontinuous roll-casting process should be investigated. In this paper, the finite volume method isused in the analysis of the CRP, a two-dimensional incompressible non-Newtonian flow with heattransfer is considered. Based on the simulated results, the optimizational technical parameters areobtained and the experiment of CRP was carried out. An ideal AZ91D strip with non-dendriticstructure has been obtained and also has been tested by cold rolling and hot rolling. The resultsshow that microstructure and mechanical properties of the strip are fine
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/22/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.116-117.583.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Theoretical Analysis and Experimental Study on Damage Probability of HSHP Concrete (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 348-349 (Sept. 2007), p. 849-852 
    Details
    ISSN: 1013-9826
    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: Damage probability is a new concept in modern engineering design. If the cumulativedamage probability of member or material is known, then the rational design can be realized. Basedon study of high-strength and high-performance (HSHP) concrete applied to steel reinforced concrete(SRC) structures, the equation of the cumulative damage probability of HSHP concrete is derived byWeibull theory. The calculation and analysis indicate that the theoretical equation presented give asuitably mathematical limit for damage probability of specimens. At the same time, the new methodfor Weibull parameters is established, which depends on the theory of the damage probability andcomputer graphics technology. The comparison of experimental curves with theoretical curves showsthat the established equation can properly simulate the damage evolution of HSHP concrete.Them value, one of Weibull parameters, is studied in detail, which reveals that it is a key parameter toquality control. At last, the effect of specimen volume upon damage probability is also discussed. Theresearch provides methods and ideas to improve performance of concrete material and simulatedamage probability of HSHP concrete
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.348-349.849.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Study on Interfacial Crack Propagation and Fracture between Embedded Steel and HSHPC (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 348-349 (Sept. 2007), p. 853-856 
    Details
    ISSN: 1013-9826
    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: Steel reinforced high strength and high performance concrete (SRHSHPC) specimens wereexperimented to study the mechanical behaviors between steel and concrete interface. In experiment,interfacial bond softening process was observed, which can be explained in terms of damage along theinterface, leading to progressive reduction of shear transfer capability between steel and high strengthand high performance concrete (HSHPC). In this paper, bond softening process along the interface isconsidered in the analysis of crack-induced debonding. Interfacial bond-slip mechanism betweensteel and HSHPC is studied in detail based on fracture mechanics. With the help of acoustic emissionstechnology, the crack propagation in the interlayer was observed, thus the interfacial crackpropagation and fracture model is set up. Under the assumption that the interlayer is weak concretecompared with concrete matrix, the stress field as well as displacement field around the crack tip isdeduced. The characteristics of interfacial fracture process are discussed and a model for interfacialfracture process zone is built up. With this model, the size of fracture process zone can be derived. Atlast, the influence of the fracture process zone on interfacial fracture toughness is determined usingcritical fracture toughness. All these may contribute to improvement of theory for SRHSHPCcomposite structure
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.348-349.853.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    Damage Constitutive Relationship of SRC Member Nonlinear Analysis (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 348-349 (Sept. 2007), p. 833-836 
    Details
    ISSN: 1013-9826
    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: The damage constitutive relationship is a key problem to nonlinear analysis of structuralmembers. It is much more necessary to study systematically related damage constitutive relationshipof steel reinforced concrete (SRC) members because of their peculiarity. Based on the experimentalphenomena analysis and damage theory, the mesoscopic failure mechanism of concrete as well as theinterface of shaped steel and concrete is analyzed. At the same time, their mesoscopic damage modelsand corresponding assumptions of the models are established by considering material failurecharacteristics. Subsequently, the mechanism of the models is analyzed, which indicates that they fitto simulate failure process of the materials. According to the models, the related damage constitutiverelationship for SRC members is deduced by principle of energy and force balance. Combined withcorresponding experimental study, it is shown that the constitutive relationship presented isreasonable and practicable, so it facilitates SRC member nonlinear analysis
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.348-349.833.pdf
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