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  • 1
    Electronic Resource
    Electronic Resource
    Study of a scheme for a large optical/IR Telescope AAnS 332 (1992) 212-219
    Amsterdam : Elsevier
    Chinese Astronomy and Astrophysics 16 (1992), S. 474 
    Details
    ISSN: 0275-1062
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0275-1062(92)90050-L
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Rational bicubic simple quadrilateral mesh surfaces (1995)
    Springer
    The visual computer 11 (1995), S. 401-418 
    Details
    ISSN: 1432-2315
    Keywords: Closed surface modeling ; B-splines ; Rational bicubic patches ; Bézier representation ; Free-form surfaces design
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract In free-form modeling a closed smooth piecewise surface is highly desirable when the smoothness across the boundaries of patches can be represented within the formulation. Closed, smooth, piecewise bicubic surfaces, defined on simple quadrilateral mesh. (SQM), may be defined as SQM surfaces. We have extended previous work on SQM surfaces and described the surface representation in rational form. The global constraint of the control parameters associated with each control vertex is relaxed. The new local shape-control parameters with their larger range of usability further enhance the power of this free-form surface design scheme. We have also provided more B-spline functions. A complete set of B-spline functions for various topologies of the SQM is now available. Examples demonstrate that editing of shapes for reasonably complex objects can be carried out on an SGI Personal Iris machine at an interactive rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02464331
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  • 3
    Electronic Resource
    Electronic Resource
    Rational bicubic simple quadrilateral mesh surfaces (1995)
    Springer
    The visual computer 11 (1995), S. 401-418 
    Details
    ISSN: 1432-2315
    Keywords: Key words: Closed surface modeling ; B-splines ; Rational bicubic patches ; Bézier representation ; Free-form surfaces design.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003710050032
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  • 4
    Electronic Resource
    Electronic Resource
    The Study of Undercooling of Homogeneous Nucleation for Metallic Melting (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 561-565 (Oct. 2007), p. 1941-1944 
    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: In this paper, the thermodynamic and kinetic requirements of heterogeneous andhomogeneous nucleation of metallic melting were suggested. Based on the kinetic requirements ofnucleation, the mathematic model of wetting angle of heterogeneous nucleation was developed,Based on the wetting angel model, it was predicted that the maximum undercooling of homogeneousnucleation for melts is two thirds of melting temperature. With the wetting angel model, the wettingangles of different catalysts in liquid iron were calculated, and calculation results are in agreementwith that of other researchers
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.1941.pdf
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