查询词典 permuted cyclic code

The micropipette aspiration was used to study the effect of cyclic strain on mechanical property of human pulmonary epithelial A549 and H727 cells. The cyclic strain increased cells adhesion foreces and spreading areas.

周期性机械拉伸作用增强了人肺上皮细胞A549和H727与基底的粘附能力和细胞在基底面的铺展面积，且随着时间的增加，呈递增性的增加。

The bias of cyclic periodogram with ssinc window is analyzed in both spectrum frequency direction and cycle frequency direction, and that the TA cyclic spectrum estimation is unbiased is proved.

通过分析加ssinc窗的循环周期图在谱频率方向和循环频率方向的偏差，分析了TA循环谱估计是无偏估计。

A new cyclic constitutive model for sands which can describe the deformation behavior of sands under combined variation of principal stress axes and magnitudes was developed based on the above physical fundamentals. And its effectiveness under the complex stress paths including cyclic rotation of principal stress axes is verified by a good comparison of model simulation with test results for sands.

2基于对应力主轴循环旋转条件下砂土的基本变形规律的认识，吸收和借鉴已有弹塑性本构模型研究成果中的合理概念和建模方法，建立了一个可合理描述应力主轴循环旋转效应及主应力幅值大小与应力主轴方向循环耦变效应的砂土弹塑性本构模型，并对该模型在包含应力主轴旋转的复杂循环应力路径下的有效性进行了验证。

The soil static and dynamic universal triaxial and torsional shear apparatus which can simulate the cyclic stress characteristic of sand on seabed is used to perform experimental tests of loose carbonate sand s with a relative density of 30% subjected to vertical-and-torsional coupling cyclic shear with the rotation of principal stress axes induced by ocean wave.

利用土工静力-动力液压三轴-扭剪多功能剪切仪模拟海洋波浪的加载形式，对相对密度为30%的钙质砂进行了扭转和竖向耦合循环剪切试验，着重研究了复杂应力状态下初始主应力方向角α0和中主应力系数b对钙质砂动强度特性的影响。

The apparatus for static and dynamic universal triaxial and torsional shear soil testing is employed to perform stress-controlled cyclic coupled vertical and torsional shear test by different cyclic stress paths. Through a series of tests on saturated clay, the dynamic deformation, stress-strain relationship and dynamic strength are systematically investigated under rotation of principal stress axes.

针对饱和黏土，利用土工静力－动力液压三轴－扭转多功能扭剪仪进行了均等固结下的耦合循环剪切试验，着重研究了不同循环应力路径对应力－应变关系和强度特性的影响。

Secondly, according to the spectral correlation theory of second order cyclostationary processes, maximumlikelihood filters are used to estimate the cyclic spectra. By estimating the crossspectra of the two frequency shifted versions of cyclostationary signal, the cyclic spectra can be obtained. The analysis effective bandwidth of maximumlikelihood filters is studied in details. In case of cross-spectra estimation, the analysis effective bandwidth of maximum-likelihood filters is not correct. A new method to calculate the analysis effective bandwidth is presented.

第二，根据二阶周期平稳随机信号的谱相关理论，提出了循环谱密度估计的最大似然滤波器法，即采用最大似然滤波器估计出周期平稳信号的两个频移分量之间的互谱密度，从而得到了循环谱密度的估计；对最大似然滤波器的有效分析带宽做了详细的分析，指出了在互谱密度估计时以往的有效分析带宽不正确，并提出了互谱密度估计时的有效分析带宽的新的计算方法。

The main contributions of the dissertation are as follows: The conjugate cyclic ESPRIT and spectral correlation conjugate cyclic signal subspace fitting method with minimum-redundancy linear-array are presented for narrowband DOA estimation.

利用阵列天线和先进的信号处理技术，可以充分地开发信号中蕴藏的"空间维信息"，形成精细赋形波束，有选择地接收和发送用户信号，从而有效地抑制干扰，提高系统容量和服务质量。

Cyclic economy development demands green logistics system. Green logistics is mostly development trend. It breaches negative influence of former logistics, achieves environment logistics spiritualization, and advances cyclic economy development.

循环经济的发展需要物质流通领域的绿色化，绿色物流是现代物流的主要发展趋势，它突破了以往非绿色物流对环境与资源的负面影响，在物流过程中抑制物流对环境造成危害的同时，实现物流环境的净化，使物流资源得到最充分利用，从而能够推进循环经济的发展。

In this paper, cyclic thermal, tests on threaded fasteners simulating the real reactor internal thermal conditions and analyses of the tests are performed. Influences of the cyclic thermal loads on preloads and fastener structures are studied.

对通过模拟实际联接结构的联接件进行热循环试验和分析，研究热循环载荷对预紧力和联接结构的影响。

The cyclic tridiagonal matrix method is adopted to solve the discretization equations. The circumferential cyclic boundary condition is implemented using the mutual replacement method.

同时，对圆周角方向的周期性用反复迭代方式来实现的方法提出了一种实施边界条件处理的方式，并比较了采用CTDMA方法与采用反复迭代法的收敛速度。

Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.

马哈拉施特拉邦内政部高级官员Pradeep Indulkar称，有101人在冲突中丧生，287人受伤。

Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.

Frei说，该公司80%在家办公的人员都拥有本科学位，而在公司电话中心工作的人中只有30%拥有本科学位。