查询词典 matrix transform

At polymorphic gene locus, the variance components of quantitative trait was described as follows:VA=2βp and VG=p′Xp-G2 in which p=column vector of polymorphic allele frequencies,β=row vector of2,X=［a2ij］i×i matrix,aij=genotype value,and G=population mean.

数量性状相对多态座位的加性方差和遗传方差分别为VA=2βp和VG=p′Xp-G2，其中p′和p分别表示多态等位基因频率的行向量和列向量，X表示以基因型值平方为元素的矩阵，β表示以基因均效平方为元素的行向量，G为群体均数。

By means of scientifically determining the membership function of each factor and establishing the weight of each factor by constructing the judging matrix through binary taxis, the optimal one was selected from nine schemes made up of different combination of room structural parameters, which could ensure not only safety production but also better economic profit.

通过合理确定评价指标的隶属度函数和利用二元排序法构造判断矩阵确定各评价指标的权重，对9种方案进行了综合评判，确定了最优方案，选出了合理的矿房结构参数，既可保证矿山的安全生产，又可保证矿山经济效益。

The design and manufacture of combined extracellular matrix materials in bone tissue engineering is a very important and urgent challenge.

复合型细胞外基质材料的研制是骨组织工程研究中十分重要而迫切的任务。

Two effective combined methods of judgment matrix in GDSS are given.

从而得到了GDSS中判断矩阵的两种有效的集结方法。

The performance of each system and the correlation matrix are combined to confirm the spare test resources for each test.

结合系统各个级别的诊断性能与相关矩阵，确定每个测试能够选用的测试资源。

Phase change materials are combined with building matrix to make components of phase change energy storage in building.

目的由于相变墙板特殊的传热性能及不同的外界条件，有必要对相变墙板性能进行优化，使得相变墙板在设计和使用性能上得到改善。

Then using the TOWS matrix combined with core competence, the author has formulated the competitive strategy in three years.

利用SWOT分析的方法来确定公司在竞争中所处的位置，并初步确定应该采取的战略类型，结合核心竞争力理论为渝江公司选择制定了未来三年的竞争战略。

In our study, Natural Capacity Impact Matrix is combined with air quality model directly, and economic factor is brought into RAEC model.

创建了一个基于空气质量模式及线性优化理论的RAEC模拟系统。完善了大气环境容量的理论体系。

Combined with skew-symmetrization condition in matrix theory, a class of stable systems with sign-skew symmetric structure is proposed, and is regarded as the objective of controller design. There are two methods to implement the design.

摘要结合矩阵论中的可反对称条件，提出一种稳定的具有符号反对称结构的系统，并将其作为非线性系统的镇定控制目标。

The design method of using combined pre_stressing matrix in the drawing die for forming the part with various thickness dimensions was introduced.

介绍了在工件料厚变化较大的拉伸模中采用预应力组合凹模的设计方法，在实际生产中应用取得了良好的效

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。