查询词典 period matrix

The course of development in earlier period and the matrix theory of important mathematicians are discussed in great detail.

二、详细探讨了矩阵的早期发展以及重要数学家的矩阵理论。

In later period, the concrete matrix acquired the strength and density from cement hydration.

在以后的时期，取得的具体矩阵水泥水化强度和密度。

The author also gives a design of new Quality Control Management System, Implementation and Development Strategy for YCFF to improve product quality after performing positional analysis for existing products with life period and Boston matrix theory.

究其根源，企业在改造技术、设备的同时，质量管理系统没有进行相应的更新，跟不上时代的发展，产品质量差，影响了企业的经济效益。

Veinott algorithm, which can compute reachable matrix and the period index of strongly connected graphs, respectively.

1即可。算法2 借助了图论中求可达矩阵的Warshall 算法和求强连通图周期指数的Balcer ？

Thus we can calculate the period of the companion matrix over finite field. At the same time we give the method to check up whether the length of the information sequence satisfies the condition of tail-biting and the calculation complexity can be reduced.

给出了自结尾序列对序列长度的限制，并给出了检验某一长度的输入序列是否可为自归零序列长度的方法，并将验证的计算量降到最低。

By using this method,9 switching states were ensured during a sampling period of the matrix converter,and the duration of each switching st...

实验结果表明，采用提出的空间矢量脉宽调制优化调节策略，不仅消除了输出电压中的错误脉冲，而且降低了输出电压的总谐波畸变率，在输出频率为15Hz时，THD降低约15%，有效地提高了矩阵式变换器的输出波形质量，保证了系统的安全可靠运行。

Objective Study the relativity of newborn umbilical blood and neonate heel blood TSH level with its matrix gestation period urine iodine level in iodine nutrition sufficient condition.

目的研究碘营养充足状态下新生儿脐带血与足跟血TSH水平间及其同母体孕期尿碘的关系。

According to the lateral deflection equation of the wall frame-structure ,an exact flexibility matrix is developed first and, then, the natural period and vibration mode of the wall-frame structure is defermined in this paper. According to actual earthquake action, the structural response is calculated with statical analysis.

本文在框架-剪力墙侧移公式的基础上建立结构的柔度矩阵，确定结构的自振周期和振型，采用静力方法按实际的地震作用分布计算结构的作用效应，然后采用振型分解反应谱法对结构进行抗震分析。

The model this paper deals with is a flow line of two machines. By means of structured stochastic matrix theory and theory of Markov process, an effective algorithm obtaining the variance of end products in a given period is proposed.

讨 论的模型为两级的串行生产线，利用结构随机矩阵理论和马氏过程的协方差结构，给出了在一个给定时间区间内系统生产成品数方差的有效算法。

Results: During the period of distraction and fixation, positive staining of BMP-2 was found in the proliferated preosteoblasts, the mesenchymal cells and the newly formed bone matrix at the sutural margin of the experimental dogs; weak expression was also noticed in the control dogs.

结果：牵引期和固定期，BMP-2在实验犬各骨缝边缘大量增殖的未成熟成骨细胞、间充质细胞以及新生骨基质中呈阳性表达，对照犬也有少量表达。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。