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This paper analyzes the special nature of low-carbon ecological mining construction and establishes the multi-stage comprehensive evaluation model on low-carbon ecological mining construction, which considers the three dimensions of history, present and future. The first phase evaluation is proceeded through setting prerequisites to screen. The second phase evaluation is proceeded through building...
In order to improve the teaching effect of the practical application courses, this paper proposes the double main three-dimensional interactive teaching mode based on project-oriented method. Firstly, this paper explains the concept of double main three-dimensional interactive teaching mode, and then taking market survey and forecasting course as an example, discusses the double main three-dimensional...
As a key unrenewable energy, coal plays an importantly strategic role in national economy. With the increasing of the depth of coal mining, there is more difficulty in mine construction. Risk management has become more and more important to mine construction project. the paper uses entropy and unascertained measure model and risk matrix to assess the risk of mine shaft construction project. It is...
In an increasingly competitive transport market, railway companies need pay attention to competitive power management based on customer value. In order to provide theoretical guidance for enhancing enterprises competitiveness, the paper uses the system theory to study the system structure of customer value creation capability. Then entropy and unascertained measure model are adopted to evaluate customer...
In this paper, we propose an efficient method to generate optimal multiresolution dynamic models. By the method, we define the triangle importance degree as a weight parameter to be embedded to the edge contraction cost, so the new metric can not only measure distance error but also reflect geometric variation of local areas. A deformation degree weight is appended to the aggregated edge contraction...
In computer graphics, investigation has been made in many years in progressive models generation to alleviate the workload of visualization processing. However, most of the existing algorithms only focus on static meshes, and very little works are to deal with animation models. In this paper, we propose an improved method for generating progressive multiresolution animation models. By the method we...
Although animated meshes are frequently used in numerous domains, only few works have been proposed until now for simplifying such data. In this paper, we propose a new method for generating progressive animated models based on local feature analysis and deformation area preservation. We propose the use of solid angle and height value for a non-hyperbolic vertex to define the local feature parameter...
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