衰减

This paper proposes an error concealment algorithm based on polynomial interpolation,which uses cubic polynomial to predict and fit the motions of objects.

在无线环境下，由于多径衰减和噪声等因素影响，信道的误码率通常很高，而且误码率随着外部环境的变化而改变[1]。

This dissertation has studied various architectures of Sigma-Delta modulator systematically. According to power dissipation, stability and circuit implementation, a 2-2 cascade architecture is introduced. Oversampling ratio is 32. The attenuation factors of each integrator and interstage coefficients are obtained from behavioral simulation.

本论文系统地研究了∑A调制器的各种体系结构，根据功耗、稳定性以及电路实现等方面综合考虑，∑A调制器采用级联2—2结构，过采样比为32，并通过行为级仿真确定了积分器的增益衰减因子及级间耦合系数。

In this paper, authors research the effects of the attenuation coefficient choice of the Gabor transform window function and sampling interval on signal resolution.

该文研究了Gabor变换窗函数衰减系数选择正确与否和采样间隔对信号分辨率的影响。

In this paper, The photophysical properties of intramolecular electron and charge transfer under different pressure are explored.

本文主要利用高压作为调控参量，利用吸收光谱、荧光光谱和荧光衰减作为主要的研究工具，研究分子内电子转移和电荷转移体系的光物理性质。

Performance degradation of fuel cell leads to invalidation of energy management strategy.

长时间运行的燃料电池性能衰减将导致能量管理算法失效。

Estimation of the attenuation law is based on the inverse transfer function of the object approximation in the frequency domain.

估算的衰减规律，是基于逆传递函数的对象近似的频域。

The Inverse Square Law: The force of attraction between two objects is inversely proportional to the square of the distance between them.

光度学距离平方反比定律：物体的作用强度，随距离的平方衰减。二物体之间的距离如果拉近1/3，其吸引力增加 9 倍。

Methods Ionization chamber and film dosimetry methods were used to compare the angular dose distribution, point source approximation in the area close to the source,the coincidence of inverse square law of source strength and the scatter and attenuation in water medium,of a cylindrical, miniature 192 Ir source and "the ideal point source".

用电离室法与胶片法实测国产192Ir放射源空间剂量角分布、点源的近似性与源强反平方定律的符合性以及水介质散射与衰减特性，并与点源剂量分布特性比较。

The average electron density in the linear attenuation zone is about 10^-5 of neutral particle density, and can diffuse over a wide rarea, The conclusion will supply some valuable references to the research of electromagnetic wave and artificial plasma interaction, the plasma invisibleness research of missile and special aerocraft,and the design of artificial plasma source.

平缓衰减区中的平均电子密度约为中性分子密度的十万分之一。并且可以覆盖较大范围。这些结果对于电磁波与人工等离子体相互作用的研究、导弹和空间飞行器的等离子体隐身研究及人工等离子体发生器的设计有一定的参考价值。

The ionizer can keep the NAIs concentration above 3.02×105 ions/cm3 in the breathing space. This study investigated the distribution of control efficiency for four kinds of bioaerosols, and compared the difference of them.

研究结果发现，空气负离子在呼吸范围中的浓度分布在面部前方5 cm处最高，随与空气负离子产生源距离增加而衰减，由於面部会中和负电荷，故也会使空气负离子浓度骤减。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。