查询词典 arithmetic expression

Through theoretic reckoning and simulating analyzing, several control strategies for shunt APF were compared and chose ip-iq arithmetic ofthe instantaneous reactive power theory control strategy as the right scheme to produce the instructing current. Based on it, some new control arithmetic was subjoined to suppress the resonance in system and balance the dc side capacitor voltage. Two topologies of main circuit were compared and chose the three-phase voltage-source converter with a split-capacitor as its main circuit structure. The numerical scales of the dc side capacitor and inductance of reactors were calculated. The high-pass filters were designed to eliminate effectively the highfrequency harmonics produced by APF.

通过理论计算和仿真分析，比较了并联型APF的几种控制策略的优点和缺点，从中选择瞬时无功理论控制策略i_p-i_q计算方式为指令电流产生的算法，并在此基础上增加了抑制系统谐振和平衡直流侧电容电压的控制；比较了并联型APF主电路的两种常见形式，从中选择了三相电压型变流器的主电路形式；算出适合该APF的直流侧电容和出线电感的参数；设计出能有效消除APF产生的高次谐波的高通滤波器。

Vised and control by arithmetic figure the new function that many arithmetic figures that replace traditional technique parties' living supervise and control the test that experience the fulfillment.

安防产业在中国作为一个相对新兴的产业，可以说在其迅速扩展式发展的二十一世纪初便深深打上了数字化的烙印，作为安防产业的核心，闭路监控更是首当其冲，2000和2001年的硬盘录像机的飞速发展就是对数字监控的一个市场性的反映，由于数字监控正处于一种过渡阶段，由数字监控取代传统技术派生出的许多数字监控的新功能正经历实践的考验。

The theory minutely analyze trait of evolutionary programming arithmetic and state variables breakout problem in solving reactive power optimization problem, link reactive power balance theory.. reactive power bed and subarea control theory and adjusted-voltage material law of actual system. The theory first put forward a effective variability quantity modified measure, escape unfeasible problem in evolutionary programming, also make evolutionary programming arithmetic in solving reactive power optimization problem more quick and effective.

详细分析了进化规划算法的特点和在求解无功优化问题时存在的状态变量越限问题，结合无功平衡原理、无功分层分区控制原理以及实际系统中调压的具体规律，首次提出了一套有效的变异量修正措施，避免了进化规划的不可行问题，也使进化规划算法在求解无功优化问题时更加快速有效。

Center and width of the subjection functions can be optimized automatically with the arithmetic. After analyzing work principle for clinker flow of grate cooler, the model of clinker flow is built by using the arithmetic.

在分析篦冷机熟料流动工作原理的基础上，利用该算法建立的篦式冷却机熟料流动模型，通过仿真研究表明该算法具有很强的非线性逼近能力，所建模型输出与实际输出相对误差在1%以内。

And then the designing process and method of the system are expatiated, including the analysis of the system performance, functional module partition, equipment selection and installation, dynamic real-time image acquisition, defect detection arithmetic, and so on. It is worth mentioning that, we have creatively achieve to capture the dynamic images of blood lancets automatically, and we have designed a simple but effective arithmetic for detecting defects according to the image features of blood lancets. Finally, we analyse the experimental results and evaluate the system performent.

在系统设计的过程中，创造性地实现了动态图像的自动采集，对采血针图像的特征进行了有效的分析，采用图像裁剪、直方图均衡化的图像增强方法、邻域平均法的平滑处理方法、基于迭代法自动确定阈值的图像分割方法等对采血针图像进行预处理，根据采血针缺陷的形状特征设计了简单易行精度较高的缺陷检测算法。

In the chapter of Data Minings really application of Data Mining, it discuss of how to develop the VOI of Web by using clustering arithmetic and relationship arithmetic.

在数据挖掘的具体应用一章中，用了聚类算法和关联分析算法对提高网站的访问率进行了具体的论述。

A central bias function and an arithmetic of pitch detection based on central bias function were proposed for the transition sound, which cannot be detected by the traditional arithmetic of pitch calculation.

针对传统的基音估计算法不能适用于过渡音的问题，提出中心偏离函数及基于中心偏离函数的基音周期检测算法。

The proposed Arithmetic Word Problem Grammar can facilitate the maintenance of arithmetic word problems and their evolutions including Self-Evolution and Collaborative-Evolution.

我们提出的数学应用问题文法可促进维护数学应用问题以及问题的演化，包含自我演化以及合作式演化。

After a long time of predicting performance testing, the performance of the self-adapting predicting arithmetic is analyzed and compared with the widely used arithmetic nowadays.

预测系统经过长时间的性能测试，与现有的主流的几个单一的预测算法进行了对比，给出了定性和定量的分析。

Based on the system, the arithmetic of the image processing was analyzed systematically and the process flow as well as the arithmetic of the structured light-based weld seam Image processing was compiled.

设计完成了用于焊缝跟踪图像处理的硬件结构系统，在此基础上对图像处理算法进行了系统的分析，设计完成了针对基于结构光的焊缝图像处理的工艺流程和算法。

Use nationalization degree and the relationship that commercialize degree, condition of calculable market economy plays scope of optimal and state-owned economy.

利用国有化程度与市场化程度的关系，可计算市场经济条件下最佳国有经济规模。

The kinds of extractant also effected desulfurization rate .

萃取剂对脱硫率的影响也很大，乙二胺的萃取效果优于甲醇的。