Library

feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 11
    Electronic Resource
    Electronic Resource
    Springer
    Computational mechanics 11 (1993), S. 408-420 
    ISSN: 1432-0924
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A comparative study is made of three finite volume formulations to investigate the efficacy of flux limiters and damping coefficients on three-dimensional Euler and Navier-Stokes solutions. Spatial discretizations of convective and diffusive fluxes based on a central, a modified central and an upwind schemes are described. The system of ordinary equations is then solved by a factored implicit stepping technique for the computation of supersonic flow over a blunt delta wing. The modified central method, stabilized by flux limiters and a second-order damping, provides high-resolution, non-oscillatory shocks comparable to the characteristic-damped upwind method. It also yields as accurate solutions for viscous flows as the central scheme blended with second- and fourth-order damping.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 12
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Applied mechanics and materials Vol. 13-14 (July 2008), p. 247-250 
    ISSN: 1662-7482
    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: In this paper, we demonstrate that a dynamic stress concentration around Lüders band canbe directly displayed using mechanoluminescence (ML) sensing film of SrAl2O4:Eu (SAO) coated onthe surface of metal. Uniaxial tensile test of an aluminum alloy (2.5% Mg) plate coated with the SAOsensing film was performed and the ML images were recorded using a high-speed camera. CapturedML images confirmed the formation and propagation of Lüders band clearly in real time
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 13
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Advances in science and technology Vol. 45 (Oct. 2006), p. 939-944 
    ISSN: 1662-0356
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Natural Sciences in General , Technology
    Notes: Recently we have proposed that stress distribution of a subject can be visualized byutilizing a novel mechanoluminescence phenomenon that can give intense visible light emission byapplication of mechanical stress. As the luminescence intensity is proportional to the time-variationof strain energy in the elastic region, we call it elastico-luminescence. In order to realize a high spaceresolution in such visualization for stress distribution, we aim to develop strong elastico-luminescentnanoparticles, such as a controlled structure of α-SrAl2O4:Eu (monoclinic phase). The processing ofthe nanoparticles, the property and the applications will be reported in the present work
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 14
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Applied mechanics and materials Vol. 5-6 (Oct. 2006), p. 225-230 
    ISSN: 1662-7482
    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 the application of modal analysis and parameter identificationusing data of random vibration test to a cylinder structure. It is deduced that the impulseresponse function can be substituted by the cross-correlation function computed directlyfrom the response-only data based on the white noise excitation or broadband input. So themodal parameter identification can be done by the least squares complex exponential(LSCE) method. And the modal parameters are obtained from the random vibration test databy the complex exponential method. Compared with the results of traditional modal test, theresults of random vibration test are proved to be correct, and also the feasibility of this ideais proved well
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 15
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 53-54 (July 2008), p. 71-76 
    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: A coupled thermo-mechanical model of plane-strain orthogonal metal cutting includingburr formation is presented using the commercial finite element code. A simulation procedure basedon Normalized Cockroft-Latham damage criterion is proposed for the purpose of better understandingthe burr formation mechanism and obtaining a quantitative analysis of burrs at exit. The cuttingprocess is simulated from the transient initial chip formation state to the steady-state of cutting, andthen to tool exit transient chip flow, by incrementally advancing the cutting tool. The effects of cuttingcondition on the non-steady-state chip flow while tool exit can be investigated using the developedfinite element model
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Numerische Mathematik 53 (1988), S. 485-498 
    ISSN: 0945-3245
    Keywords: AMS (MOS): 65F10 ; CR: G1.3
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary Recently, special attention has been given in the literature, to the problems of accurately computing the least-squares solution of very largescale over-determined systems of linear equations which occur in geodetic applications. In particular, it has been suggested that one can solve such problems iteratively by applying the block SOR (Successive Overrelaxation) and EGS1 (Extrapolated Gauss Seidel 1) plus semi-iterative methods to a linear system with coefficient matrix 2-cyclic or 3-cyclic. The comparison of 2-block SOR and 3-block SOR was made in [1] and showed that the 2-block SOR is better. In [6], the authors also proved that 3-block EGS1-SI is better than 3-block SOR. Here, we first show that the 2-block DJ (Double Jacobi)-SI, GS-SI and EGS1-SI methods are equivalent and all of them are equivalent to the 3-block EGS1-SI method; then, we prove that the composite methods and 2-block SOR have the same asymptotic rate of convergence, but the former has a better average rate of convergence; finally, numerical experiments are reported, and confirm that the 3-block EGS1-SI is better than the 2-block SOR.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 17
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 561-565 (Oct. 2007), p. 1741-1744 
    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: China Low Activation Martensitic steel (CLAM), which is one of the RAFMs (ReducedActivation Ferritic/Martensitic steels) and under development in ASIPP, is considered as theprimary candidate structural material and LiPb eutectic as both tritium breeder and coolant of theblankets in FDS series fusion reactors. The corrosion behavior of CLAM steel exposed to the liquidbreeder LiPb is of significance. Corrosion tests of CLAM in flowing LiPb at 480°C were performedup to about 2000 hrs to analyze the corrosion mechanism of CLAM exposed to liquid LiPb. Thespecimens were observed and analyzed by Scanning Electron Microscopy (SEM) and EnergyDispersive X-ray Spectroscopy (EDX) after 500hrs, 1000hrs and 2000hrs corrosion experimentrespectively. The corrosion is of non-uniform and the weight loss was about 0.23 mg/cm2 after 2000hrs’ exposure, which is smaller for CLAM compared to those of other RAFMs
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 18
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 19 (1965), S. 637-645 
    ISSN: 0001-5520
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 19
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 53 (1997), S. 337-338 
    ISSN: 1399-0047
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Two distinct azurins named azurin-I and azurin-II were isolated from Alcaligenes xylosoxidans GIFU 1051 (AzG-I and AzG-II). They have been purified and crystallized. The crystals of AzG-I belong to the monoclinic crystal system, space group C2, unit-cell parameters a = 130.6, b = 54.4, c = 74.7 Å, β = 96.1°. The crystals of AzG-II belong to the tetragonal crystal system, space group P4122 or P4322, unit-cell parameters a = b = 52.6, c = 100.7 Å. Both crystals diffract up to 2.0 Å resolution and are suitable for X-ray crystallographic studies.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 20
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 53 (1997), S. 129-130 
    ISSN: 1399-0047
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Plastocyanin from Silene (SilPc) expressed in E. coli has been crystallized in a form suitable for X-ray diffraction analysis by a macroseeding method using ammonium sulfate as a precipitant in acetate buffer (pH = 5.5). These crystals belong to the trigonal space group P3121 or P3221 with lattice parameters a = b = 76.6, c = 65.5 Å, indicating an asymmetric unit containing two plastocyanin molecules. The crystals diffracted to at least 2.0 Å.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...