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The minimum Steiner tree theory is the basis theory of global shortest path. It is one of the classic NP-hard problems in nonlinear combinatorial optimization. A visualization experiment approach has been used to find Steiner points and the system shortest path named Steiner minimum tree. However, the obstacles must be taken into consideration in some problems. An obstacle-avoiding Steiner minimal...
Wind energy has attracted persistent attention all over the world as a renewable energy, so it is very important to research the permanent magnet generator which is an important part of wind energy conversion system. A simplified computational method for generator design is proposed in this paper, and an experimental device is made to check out the usability of the proposed method. The dynamic performance...
Three-hastate vertical axis wind wheel, a novel type rotor with high efficiency, can be able to actualize wind energy conversion by the lumen twice driven principle, based on the theoretical analysis of the rotor's geometric structure in this research. The computational fluid dynamic analyses, which detect the aerodynamic characteristic of the rotor further, are also described by using the multiple...
Wind energy is a clear, safe and renewable green energy resource. Because it can be supplied inexhaustibly and always be used availably, it is exploited by countries all over the world and has gradually become a new energy type. According to the wind energy characteristics and the hydrodynamics theory, the vertical axial wind turbine of three hastate windmill, which can convey the intra-cavity wind...
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