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In this paper, we present a technique for 3D meshes deformation based on mean value coordinates. Mean value coordinates have been proven to be an excellent method for constructing such as interpolant which is a fundamental operation in computer graphics. In order to decrease the computational cost, the proposed method reduces the number of vertices involved in the deformation. We first construct a...
In the context of 2012 SIEMENS cup national college student automation industry challenge match, a Yaw control system of wind generating set is designed in this paper. The designs of the software and hardware are described in detail. Based on the software provided by the match, the debugging of the self-starting control, yaw control are completed very well. The accurate alignment toward the wind of...
Bearing similarity to random noise, frequency-modulated chaos signal have advantages in terms of measure accuracy, target detection capability and electromagnetic compatibility. Besides, it's easy to produce, duplicate and apply. On basis of mathematical modeling of discrete chaos mapping, this paper analyzes three types of frequency-modulated chaos signals. The Autocorrelation Function, Power Spectrum...
Psychological Contract exists between the employee and the organization, and also plays an important role in the employee's expectations and organizational performance. Psychological contracts are consist of the beliefs that employees hold regarding the terms and conditions of the exchange agreement between themselves and their organizations. To make human resource policy realistically and feasibly...
Prediction of the size, shape, and variation of the therapeutic region (TR) induced by HIFU has a great significance to HIFU treatment planning. In this study, the approximation of Westervelt formula for the nonlinear propagation of ultrasound and Pennes bio-heat transfer equation have been used along with the Finite Difference Time Domain (FDTD) method to calculate the temperature field. Then the...
Applying the method of system dynamics simulation, an SD model of the interactions between industrial agglomeration and regional economic competitiveness under the leadership of the government is founded on the base of qualitative analysis on the interactions between industrial agglomeration and regional economic competitiveness. This model has been tested by the analysis of the sensitivity of the...
Thermal contact resistances between solid materials constitute a major challenge in numerous industries. Most works on this subject deal with the modeling of the contact resistance between flat surfaces. A microscopic modeling of the cylinder-cylinder contact in steady state is proposed in this paper. This three-dimensional model is completely analytical. It first allows a representation of the...
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