查询词典 sets

We construct a family of iterative mappings, which yield cyclic windows of variant size in the dynamical plane by incorporating cosine functions and non-linear angle variables with parameters. Chaotic attractors and filled-in Julia sets in the different cyclic windows are created by establishing the coordinates of any cyclic windows and the maximal window, then clarifying the relationship of corresponding points between these cyclic windows. The respective images in different windows are continuous but with individual structures.

该算法采用余弦函数及含参的非线性角度变量构造一族使动力平面上各周期窗口的尺度变化的迭代映射；通过计算任意周期窗口和最大周期窗口得出窗口间相应点之间的非线性对应关系，并构造出各周期窗口中的混沌吸引子和充满Julia集，其图案是连续的且结构不同的；选用不同的周期窗口作为基本计算区域，使之与正方形像素矩阵对应，并构造出基本图元，实现了用一个映射构造出多个平面排列图案的算法。

Through study of cyclic active database rule sets and analysis of triggering graph and activation graph, we present the concept of united formula and the algorithm to determine termination of a rule set corresponding to a cyclic triggering graph. We also present the time complexity analysis of the algorithm.

我们针对有环时的规则集的终止性进行了研究，通过对触发图、活化图的分析，提出了联合公式的概念，在此基础上给出了判定有环触发图对应的主动规则集的终止性算法，并给出了时间复杂度分析。

By setting symmetric orbit traps (in particular, by using more complex bounded sets, such as chaotic attractors, as orbit traps), visually fascinating images with cyclic or dihedral symmetry can be created in this way.

通过设置具有对称性的轨迹井(同时也把轨迹井推广到更加复杂的有界集上，如混沌吸引子)，生成具有循环群对称性的彩色图像。

In plastic step sucking back is very important too. Sucking back include front sucking back and back sucking back It setting sucking back to prevent flow and line. It sets sucking back speed and pressure within 20-50% and distance within 2-5cm. TOO long distance make cyclinder reserve air and cause bubbleat next molding.

熔胶过程还有一个比较重要的环节，那就是松退，松退分前松退和后松退，其作用一般是为了防止流涎和抽丝，设定值速度和压力都在20%-50%间，设定的行程一般在2-5cm间，太长的行程可能会使料筒里面贮存空气，导致下一模出现不期望的气泡。

In plastic step sucking back is very important too. Sucking back include front sucking back and back sucking back It setting sucking back to prevent flow and line. It sets sucking back speed and pressure within 20-50% and distance within 2-5cm. TOO long distance make cyclinder reserve air and causebubble at next molding.

熔胶过程还有一个比较重要的环节，那就是松退，松退分前松退和后松退，其作用一般是为了防止流涎和抽丝，设定值速度和压力都在20%-50%间，设定的行程一般在2-5cm间，太长的行程可能会使料筒里面贮存空气，导致下一模出现不期望的气泡。

In plastic step sucking back is very important too. Sucking back include front sucking back and back sucking back It setting sucking back to prevent flow and line. It sets sucking back speed and pressure within 20-50% and distance within 2-5cm. TOO long distance make cyclinder reserve air and cause bubble at next molding.

熔胶过程还有一个比较重要的环节，那就是松退，松退分前松退和后松退，其作用一般是为了防止流涎和抽丝，设定值速度和压力都在20%-50%间，设定的行程一般在2-5cm间，太长的行程可能会使料筒里面贮存空气，导致下一模出现不期望的气泡。

In plastic step sucking back is very important too. Sucking back include front sucking backand back sucking back It setting sucking back to prevent flow and line.It sets sucking back speed and pressure within 20-50% and distance within 2-5cm. TOO long distance make cyclinder reserve air and cause bubble at next molding.

熔胶过程还有一个比较重要的环节，那就是松退，松退分前松退和后松退，其作用一般是为了防止流涎和抽丝，设定值速度和压力都在20%-50%间，设定的行程一般在2-5cm间，太长的行程可能会使料筒里面贮存空气，导致下一模出现不期望的气泡。

In plastic step sucking back is ery important too. Sucking back include front sucking back and back sucking back It setting sucking back to preent flow and line. It sets sucking back speed and pressure within 20-50% and distance within 2-5cm. TOO long distance make cyclinder resere air and cause bubble at next molding.

熔胶过程还有一个比较重要的环节，那就是松退，松退分前松退和后松退，其作用一般是为了防止流涎和抽丝，设定值速度和压力都在20%-50%间，设定的行程一般在2-5cm间，太长的行程可能会使料筒里面贮存空气，导致下一模出现不期望的气泡。

In the present study, Hartree-Fock and Density Functional Theory with different basis sets were employed to calculate the structural and thermodynamic parameters of 66 thiophenyl, phenyl sulfoxide and phenylsulfonyl cycloalkane carboxylates. With the statistic software SPSS11.5 for windows and GQSARF2.0, the QSAR models relating physicochemical properties of these compounds to their structural and thermodynamic parameters were successfully obtained, using multiple stepwise regression method. The physicochemical properties observed in this work include octanol/water partition coefficient, chromatographic capacity index, toxicity (EC50 and LC50), and solubility etc.

本文采用从头算方法中的Hartree-Fock 方法、密度泛函理论方法(Density functional theory，简称DFT)中的不同基组，计算了苯硫基、苯亚砜基和苯砜基含硫芳香羧酸酯三类共66 个化合物的结构参数和热力学参数，利用SPSS11.5 for windows 统计软件和GQSARF2.0 软件，采用多元逐步回归法拟合得到与溶质-溶剂相互作用有关的物理化学性质与结构参数和热力学参数之间的QSAR 方程，这些物理化学性质包括辛醇/水分配系数、色谱容量因子、毒性(EC50和LC50)、溶解度等。

Methods: Two sets of primers were designed according to the cyclostyle of pcDNA3.1-HBV-YVDD, and the full-length of HBV genome with different enzyme digestin spot was amplified.

以pcDNA3.1-HBV-YVDD为模板设计两对引物，扩增带不同酶切位点的HBV全基因，扩增产物纯化后，经酶切、连接，得到pcDNA3.1-HBV-YVDD重组体。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。