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According to the difficulties of designing and molding aerofoil blades, a application program which can be used to exactly draw profile curve of blade section is developed with VBA, which is based on the analysis of calculation method for designing and molding aerofoil blades and adopts OLE provided by CAD software SolidWorks.

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Through VC program language and database technology, illustrated the virtual modeling system in the Pro/E, and validated the affectivity of the system which studied in this thesis.

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In this paper, we have made a systemic theoretic research on modelling and reshaping several types of spline curves/surfaces in CAGD. And some creative productions are given as follows. At first, the uniform C-B-spline basis is proved to be a normalized totally positive basis, and can be extended to a normalized B-basis. C-B-spline and C-Bézier basis, similar to B-spline basis and Bézier basis in algebraic space, are two bases in algebraic trigonometric space.

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Exact evaluation of NURSS at arbitrary parameter values, Proceedings of the IASTED International Conference on Computer Graphics and Imaging (CGIM 2000), Las Vegas , USA , 169-174, Nov.

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Stairs of the staircase shape changing space, the majority of the shapes will be used in a space left below the stairs.

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They are already employed industrially to shape soft and light metals, such as aluminium and copper. Now a group of researchers at the Fraunhofer Institute for Machine Tools and Forming Technology in Chemnitz, Germany, has found a way to use an EMP device to shape and punch holes through industry's metallic heavyweight—steel.

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