weak dimension

To separate a weak deterministic signal from a chaotic background of which the dynamic mechanism is unknown is a different problem from the noise reduction for a chaotic signal since the mixed signal is also a chaotic signal with higher dimension than the original chaotic system.

混沌信号与确定性小信号叠加生成的混合信号是一更高维的混沌信号，因而不能用一般的混沌信号噪声抑制的方法进行分离。

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The weak solutions to the stationary quantum drift-diffusion equations ( QDD) for semiconductor devices are investigated in one space dimension.

研究了半导体器件中量子漂移扩散模型（QDD）的一维稳态模型。

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The Dimension of the Strong and Weak Variation of Generalized Brownian Sheet

广义布朗单的强变差与弱变差的维数

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Estimation of the Hausdorff dimension of a weak self-similar set under the strong separation condition

强分离条件下弱自相似集的Hausdorff维数估计

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The study shows that salt-water change in field dimension of soda saline soil have the following features: high-spatial variation of salt content, exist of both saline and alkaline, poor hydraulic characteristic, and weak in transfer between soil water and groundwater.

研究表明田块尺度苏打盐渍土水盐变化具有如下特征：土壤盐分含量高度空间变异性、盐化和碱化共存，水力性质极差，土壤水和地下水的转化关系非常微弱。

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