查询词典 controlled variable

We apply nondegenerate four-wave mixing processes to the generation of stable continuous variable entangled light and study the time evolution of continuous variable entangled light.

利用非简并四波混频体系制备出稳定的连续变量的纠缠态，研究了纠缠随时间的演化情况。

Study three, on the basis of study one, the study chooses the shame measure resulting mark highest and lowest value 27% student make up the proneness shame group and none proneness shame group. We use the individual character tendentiousness scale CPAI and self-respect scale to measure the personality trait of students, which in order to explore personality variable difference on shame nyctinasty intensity and personality variable influence on the forming and development of shame during the native culture in China.

研究三，在研究一的基础上，抽取羞耻感测量所得分数最高分和最低分各27％的学生组成易羞耻组和不易羞耻组被试，运用个性倾向性量表CPAI和自尊量表进行测验，探索羞耻感受性程度不同的被试在人格变量上的差异及在中国文化下人格变量对羞耻感形成与发展的影响。

At the same time it is know by analysis about matrix characteristic of the similar orthogonally that not only the characteristic value after the transformation is equal to the ones before the transformation and they are independence to time variable of the system, but also the eigenvectors of the formed system can showed the effect of the time variable on original system.

同时，根据矩阵正交相似的性质分析得知：不仅变换前后两个矩阵的特征值完全相同并与时间变量无关，而且时间变量对此系统的影响可以只由变换后系统的特征向量来描述，给出了非典型阻尼振动系统物理意义上的解释。

To realize high positioning precision and rapic response, this paper provides a variable parameter filter technique to filt positioning noise and high frequency noise meanwhile keeping rapid speed response, this technique has lower filter stiffness and damp paremeter in static state and bigger stiffness and damp paremeter in movement state using variable parameter technique, accordingly to solve the contradictions of positioning noise and positioning speed.

为实现系统高精度定位和快速响应，本文提出了采用宏定位变参数滤波技术滤除宏定位系统高频噪声，同时保持系统高响应速度。

The invention relates to a dynamic matrix control system of high-purity distillation, which comprises distillation tower, intelligent checker, DCS system, superior host, and on-site bus, while they are connected. The control system uses tower product group as the object variable, and the reflux ratio and reboil ratio as control variable; the superior receives history temperature and pressure data from the DCS real-time database, via the predict control and dynamic matrix controller, to obtain the output values of present controller as reflux ratio and reboil ratio, then feedback said two values to DCS system, to function the distillation object. The invention can confirm the high-purity stable operation, with better dynamical control.

本发明公开了一种高纯精馏的动态矩阵控制系统和方法；系统包括：精馏塔、智能检测仪表、DCS系统、上位机和现场总线；所述精馏塔、智能检测仪表、DCS系统和上位机通过现场总线依次相连，实现信息流的上传和下达；本发明所涉及的控制系统采用塔双端产品组分为被控变量，回流比和再沸比为对应的控制变量；上位机从DCS实时数据库中获得历史的温度、压力等数据，通过推断控制环节和动态矩阵控制器环节，得到当前控制器的输出值-回流比和再沸比，再把控制器输出值返回给DCS系统，实现了对高纯精馏过程的双端产品高纯控制，对双端组分的高纯度平稳操作，具有很好的动态品质和控制效果。

The method is based on a variable structure to control the SVC, wherein, the variable structure control method comprises two aspects of the unbalanced load equalization compensation and the parameter control of a PI controller, wherein, the unbalanced load equalization compensation adopts the SVC compensation susceptance computational method which is based on the synchronous rotation reference coordinate transformation of a virtual symmetrical three-phase system; meanwhile, in the stabilization control of the system voltage, the ant colony algorithm optimization method is adopted to real time adjust and to optimize the parameter kp and ki of the PI controller.

本发明公开了一种静止无功补偿器的不平衡补偿和蚁群优化方法，基于变结构对静止无功补偿器SVC进行控制，其中变结构控制方法包括不平衡负荷平衡化补偿和PI控制器的参数控制两个方面，其中不平衡负荷平衡化补偿采用基于虚拟对称三相系统的同步旋转参考坐标变换的SVC补偿电纳计算方法；同时在系统电压稳定控制时，采用蚁群算法优化方法，对PI控制器的参数kp、ki进行实时调整、寻优。

Based on the analysis of bistatic SAR geometry model, bistatic SAR echoed signal is modeled in the double range variables domain in this paper, and the relationship between the double range variable domain and the single range variable domain is established. Then a range-dependent Doppler algorithm for imaging processing airborne bistatic SAR raw data of the translationally invariant configuration is derived, and the effect of error of the algorithm is analyzed by simulating.

摘要该文通过对机载双基地SAR非移变几何模型的分析，建立了双距离变量域的回波信号模型，由于回波数据是在距离和域，该文推导了距离和变量与双距离变量的转换关系，解决了该模型向距离和变量域转换的问题；提出了适用于非移变模式的变多普勒参数的双基地RD算法，并对该算法中引入变多普勒斜率所存在的误差进行了仿真分析。

A new type of composite CVT( Continuously Variable Transmission) systems, based on dual-mode power-split planetary gear set, is of improved efficiency, power transmutability and speed variable range.

基于正反双向分汇流行星排组的一类新型复合无级变速器系统具有效率高、率容量与速比变化范围大等特点。

It's wise to choose variable names that are related to the purpose of the variable, and that are unlikely to get mixed up typographically.

选择的变量名要能够尽量从字面上表达变量的用途，这样做不容易引起混淆。

Multiple linear regression is the simplest way to build the relationship between the several explanatory variables and response variable. However, MLR often causes the estimated regression coefficients unstable or even unaccessible when the number of explanatory variables is more than that of objects. Especially, the explanatory variables are highly intercorrelated which called multi-collinear data. Therefore, many methods have been developed to analyze multi-collinear data, such as variable selection methods, ridge regression, principal components regression and partial least squares regression.

当要同时建立多个解释变数与反应变数间的关系时，最简单的方式是以复回归来处理，但是当解释变数数目远多於样本数，或者变数之间具有高度相关性时，会使得回归系数的估计变得不稳定甚至无法求得，这样的资料又称为共线性资料，在面临这样的资料时可以利用变数选取的方式降低资料组的维度，或者以脊回归、主成分回归及净最小平方回归等方法来灭种共线性的干扰。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样