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  • 1
    Book
    Book
    3D face processing / (2004)
    Boston [u.a.] :Kluwer Acad. Publ.,
    Details
    Title: 3D face processing /
    Author: Wen, Zhen
    Contributer: Huang, Thomas S.
    Publisher: Boston [u.a.] :Kluwer Acad. Publ.,
    Year of publication: 2004
    Pages: XVIII, 136 S. : , Ill., graph. Darst.
    Series Statement: Kluwer international series in video computing
    ISBN: 1-402-08047-6
    Type of Medium: Book
    Language: English
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  • 2
    Electronic Resource
    Electronic Resource
    Study of High Temperature Wear Resistance of Hot Work Steel for Magnesium Alloy Die Casting (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 26-28 (Oct. 2007), p. 33-36 
    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: The wear properties of TFHS-1 hot work steel developed by Tsinghua University formagnesium die casting application was studied at elevated temperature with the help of GWY-2000high temperature wear tester. The result showed that the oxidation wear is the main wear mechanismat high temperature with dry abrasion, which was also accompanied by some extent of adhesive wearand abrasive wear. Heat treatment conditions of TFHS-1 steel have an important effect on itsanti-abrasion properties. In this paper, the higher temperature of tempering may result in the betterwear resistance
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.33.pdf
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Numerical Simulation of Compacting Process of Green Sand Molding Based on Sand Filling (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 561-565 (Oct. 2007), p. 1879-1882 
    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: The mathematical models of compacting process in green sand molding were built upbased on the experiment results of molding sand property testing, in which the nonlinearityproblems involved in the molding sand material, the pattern geometry and the contact between sandand flask were considered. These models were then used to numerically simulate the compactingprocess of green sand and predict the hardness distribution of green sand mold. The effect of sandfilling on the initial sand density distribution was taken into account, which was obtained throughthe two phase flow simulation of sand filling. The predicted results were compared with themeasured ones and good agreement was obtained
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.1879.pdf
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    The stagnation laws of inclined cracks at original turning point under fatigue tensile loading (1988)
    Springer
    Acta mechanica solida Sinica 1 (1988), S. 431-438 
    Details
    ISSN: 0894-9166
    Keywords: stagnation phenomenon ; inclined crack ; residual plastic zone ; crack initiating ; artificial notch ; fatigue crack
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02207622
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Some properties of hyperspherical harmonics (1985)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 26 (1985), S. 396-403 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: A general formula is given for the canonical decomposition of a homogeneous polynomial of order λ in m variables into a sum of harmonic polynomials. This formula, which involves successive applications of the generalized Laplace operator, is proved in the Appendix. It is shown that the group-theoretical method for constructing irreducible Cartesian tensors follows from the general formula for canonical decomposition. The relationship between harmonic polynomials and hyperspherical harmonics is discussed, and an addition theorem for hyperspherical harmonics is derived. An expansion of a many-dimensional plane wave in terms of Gegenbauer polynomials and Bessel functions is derived and used to construct bicenter expansions of arbitrary functions in many-dimensional spaces. Finally, a formula is derived for the 3λ coefficients of hyperspherical harmonics. These coefficients give the values of integrals involving the products of three harmonics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.526621
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Reorientation Phase and Striped Domain Patterns of Thin Films (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 475-479 (Jan. 2005), p. 3165-3168 
    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: A ferromagnetic monolayer with competing long-range dipolar interaction, short-range interaction and magnetic uniaxial anisotropy is studied using Monte Carlo simulation. Striped domain patterns are found and reveal the microstructure of the magnetization transition at the ground state via the competing between dipolar interaction and uniaxial anisotropy. We present the finite temperature phase diagram and find a temperature-induced magnetization reorientation from out-of-plane to in-plane phase. The influence of the various interactions on the structure of thestriped phase and reorientation behavior has been discussed
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/09/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.475-479.3165.pdf
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Angular integrations in m-dimensional spaces and hyperspherical harmonics (1982)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 22 (1982), S. 717-738 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A general formula for angular integrations in many-dimensional spaces (derived in a previous paper) is applied to several problems connected with solution of the Schrödinger equation for many-particle systems. Matrix elements of the Hamiltonian are derived for cases where the potential can be expressed in terms of functions of the generalized radius multiplied by polynomials in the m coordinates. The theory of hyperspherical harmonics is reviewed, and a sum rule is derived relating the sum over all the harmonics belonging to a particular eigenvalue of angular momentum to the Gegenbauer polynomial corresponding to that eigenvalue. A formula is derived for projecting out the component of an arbitrary function corresponding to a particular eigenvalue of generalized angular momentum, and the formula is applied to polynomials in the m coordinates. An expansion is derived for expressing a many-dimensional plane wave in terms of hyperspherical harmonics and functions which might be called “hyperspherical Bessel functions.” It is shown how this expansion may be used to calculate many-dimensional Fourier transforms. A formula is derived expressing the effect of a group-theoretical projection operator acting on a many-dimensional plane wave. Finally, the techniques mentioned above are used to expand the Coulomb potential of a many-particle system in terms of Gegenbauer polynomials.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560220406
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    Paper (German National Licenses)
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