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.
摘要研究了具反应扩散有限连续分布细胞神经网络的平衡点的存在性及全局指数稳定性问题。
The existence of the equilibrium point and global exponential stability of distributed delays neural networks with reaction-diffusion terms are investigated in this paper.
Ellis表示,27项指数中的20项——包括公司的订货和产出等——为历史新低,令人担忧,这表明衰退正在加深和扩散。
Ellis said it was worrying that 20 of the survey's 27 indices - covering things such as orders and output at firms - were at record lows, pointing to a deepening and broadening of the recession.
基于信息扩散理论提出直接估计低温冷害、干旱和洪涝的风险评估方法,以低温冷害为例,将计算结果与风险指数法和主观频率法做比较。
This research raised the method in risk assessment of low temperature and cold damage, drought and flood disaster based on information diffusion theory.
引入指数函数,将对流扩散方程变换为扩散反应方程,消除了数值求解中较难处理的对流项。
To eliminate the difficulty in dealing with convection terms, an exponential transformation function is introduced to turn the CDE into their equivalent diffusion-reaction equations (DRE).
所有病灶在指数扩散系数像上的信号强度比率要比扩散加权像减低。
In all lesions, the signal intensity ratio was generally lower on exponential diffusion coefficient images compared with that on diffusion-weighted images.
通过研究钨浓度的对数值与扩散深度幂指数的关系,得到了钨动态扩散动力学的类型。
Through studying the relation between logarithm of the concentration and power of the penetration distance, the kinetics type of diffusion along dislocation has been found.
而在缺陷密度比较大的碲镉汞材料中,砷的分布呈多段指数型分布,表现出更复杂的多机制扩散特性。
While in HgCdTe with high dislocation density, the arsenic distribution is complex, exhibiting multi component exponential distribution.
近几年,一些研究表明,真正引起血液中葡萄糖升高的原因或者不是糖类自己,而是食物的血糖指数、血糖的扩散速度和扩散领域。
In recent years, studies have shown that what matters may not be sugar itself but a food's glycemic index, or the speed and extent to which it raises blood glucose levels.
近几年,一些研究表明,真正引起血液中葡萄糖升高的原因或者不是糖类自己,而是食物的血糖指数、血糖的扩散速度和扩散领域。
In recent years, studies have shown that what matters may not be sugar itself but a food's glycemic index, or the speed and extent to which it raises blood glucose levels.
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