• 发现奇异量子扩散是准周期体系的普遍特性,其扩散指数由电子能级和波函数的多分形性质确定;

    We found that anomalous quantum diffusion is a general feature of quasiperiodic systems and its scaling indices are determined by the fractal dimensions of energy spectra.

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  • 分析表明:在对材料的组织结构进行研究的问题中,多重分形谱是一种有意义的表征参数,能够从多分形角度对材料的组织结构开展定量化的分析与解释。

    In analyzing material structure, the multifractal spectrum is ac hara cteristic parameter which enables the quantitative analysis and explanation ofm ater ial structure from multifractal perspective.

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  • 植株灌木型,茎多分枝,可长至50厘米高或更高,茎干8到15毫米粗,淡绿色,有白霜,近根处色深暗,叶痕呈双凸形。

    Plant shrubby, caudex branching, to 50 cm tall or more, 8-15 mm thick, pale green and glaucous above, darker below, leaf scars lenticular.

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  • 为实现地形漫游,提出基于三角形二叉树的地形网格模型动态简化算法,实现了与视点相关的连续多分辨率简化及快速动态绘制。

    This paper proposes a dynamic simplification algorithm for the terrain model based on the Triangle Subdivision Bi tree to realize continuous view dependent multi resolution rendering of terrain mesh.

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  • 在离散分形布朗随机场(DFBR)理论的基础上,提出一种多分辨率目标识别算法。

    Based on the Discrete Fractal Brownian Random Field (DFBR) an algorithm of multiresolution object recognition is presented.

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  • 金红石呈半自形粒状结构,多分布于透闪石矿物之间。

    Rutile exists as subhedral granular texture, and is mainly distributed between tremolite.

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  • 该算法首先通过引入体积保持约束,快速地实现稠密多边形网格的多分辨率表示。

    The algorithm first produces a multiresolution representation for the polygonal mesh by introducing volume preserving constraints.

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  • ROAM算法就是通过采用分解和合并方法实时地调整三角形网格,能交互式地实现观察依赖、局部可调整的地形网格化处理,生成多分辨率的地形模型。

    ROAM method adopts split and merge operations to adjust triangle meshes, can interactively perform view-dependent, locally-adaptive terrain meshing and can construct multiresolution terrain model.

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  • 根据小波多分辨率分析和水文序列的统计自相似性,提出了水文序列分形维数的小波估计方法,给出了其计算步骤。

    Based on the statistical self-similarity of hydrolgy time series, a new approach for estimating the fractal dimension by using successive wavelet transform coefficients is proposed.

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  • 其中,基于分形理论的图像编码方法以其编码思想新颖、高压缩比、多分辨率、快速解码等优点受到了广泛关注。

    The image coding method based on fractal theory is firstly proposed by Barnsley in 1988, which is developed from mathematical theory called Iterated Function Systems (IFS).

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  • 其中,基于分形理论的图像编码方法以其编码思想新颖、高压缩比、多分辨率、快速解码等优点受到了广泛关注。

    The image coding method based on fractal theory is firstly proposed by Barnsley in 1988, which is developed from mathematical theory called Iterated Function Systems (IFS).

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