查询词典 Becke test

This invention relates to MIMO test method in a multi-user MIMO radio communication system including: estimating the channel matrixes of all users at the base station, computing an orthogonal projecting matrix M of the interference matrix of each user and transmitting M to each user periodically, receiving data sent by the base station at the user end and getting the orthogonal projecting matrix M from the received data, transforming the MIMO test of a desired user to the minimum value of a K-element secondary convex function, in which, K expresses the number of sending antennas and getting estimation of the test data by a ball test method.

一种多用户多输入多输出无线通信系统中的MIMO检测方法，包括步骤：在基站估计所有用户的信道矩阵；计算每个用户的干扰用户矩阵的正交投影矩阵M，并将每个用户的正交投影矩阵M定期发送给每个用户；在用户端接收基站发送的数据，并从接收的数据中得到正交投影矩阵M；利用正交投影矩阵M将期望用户的MIMO检测转化为K元二次凸函数的极小值，其中K表示对期望用户而言，发送天线的个数；利用球检测的方法，得到检测数据的估计。

By combining virtual instruments technique with the test technique of electro-hydraulic servo valve, the test system of electro-hydraulic servo valve based on virtual instruments has been developed by the graphics software-LabVIEW6.1. The test principle and method of electro-hydraulic servo valve were discussed in this dissertation. The experimental results on a Moog servo valve demonstrate that the design of electronic-hydraulic servo valve test system is valid.

本文将虚拟仪器技术和电液伺服阀性能测试技术结合起来，利用图形化软件工具—LabVIEW，研制开发出了基于虚拟仪器的电液伺服阀性能测试系统，对电液伺服阀的静、动态特性测试原理和方法进行了讨论和研究，以MOOG伺服阀为测试对象进行了静态特性测试和试验结果分析，验证了所开发的电液伺服阀测试系统设计方案的合理性。

According to Pharmacopoeia of the Peoples Republic of China and the relevant technical provisions of TCM, natural medicine, injection intermediates were tested by quality and safety tests. The results of acute toxicity test, local muscle stimulation test, sensitivity test, hemolysis test proved the injection of polysaccharide extracted from ABM was safe and can be used via intramuscular injection and intravenous injection.

在上述研究的基础上对姬松茸多糖注射液的生产工艺进行了设计，初步制得注射液成品，根据《中华人民共和国药典》和《中药、天然药物相关的技术指导原则》对注射液的中间体进行质量安全性试验：急性毒性试验、肌肉局部刺激试验、过敏试验和溶血试验，试验结果均符合相关规定，表明姬松茸多糖注射液可以用于肌肉注射和静脉注射，无毒副作用，不会产生不良后果。

Used regression sum of squares to get the F-test statistic in order to test the random effect, the power of the test is increasing function of the test variance.

通过残差平方和构造了F检验统计量对是否有随机效应进行检验，并得出了检验的势函数是检验方差的增函数。

At first, the conception of test task was proposed to explain the evident difference of parallel efficiency of test tasks. Then, the guideline of parallelism was developed, to weigh the parallelizability of different test tasks, as well as guiding the configuration of instrument source in the parallel test system. At last, with an example, the rationality of parallelizability and the practicability of parallelism were proved.

首先根据测试任务组的并行测试效率不同的现象，提出了测试任务可并行性的概念；然后给出了衡量可并行性的可并行度指标，用以定量地指导并行测试系统开发过程中仪器资源的配置；最后通过应用实例验证了可并行性概念的合理性、可并行度指标的实用性。

ATS Lab, Engineering Colleague, Air Force Engineering University Xi'an 710038 ChinaAbstract : Research was made on the parallel efficiency of different test tasks in parallel test system, and proposed the conception of parallelizability, to describe the inherent attribute of test task in parallel test process.

针对并行测试系统中不同UUT测试任务组的并行测试效率提高存在差异的现象，提出了测试任务的可并行性概念，以描述测试任务在并行测试过程中的固有属性。

There are some characteristics for reliability growth test evaluation of liquid rocket engine, such as its field test data is small sample, there are multi-kind stresses act on the system during accelerated life test, its life test data belongs to a dynamic parent population.

液体火箭发动机可靠性增长试验的特点有：系统现场试验为小子样、加速寿命试验中存在多种应力综合作用、可靠性增长试验数据属于动态统计母体。

It rounded out its test lead and patch cord line to include a full solution of test lead kits, grabber test clips, test probes, spade terminals, banana plugs, banana jacks, coaxial cable assemblies and BNC connectors.

这个系列的产品包括线缆测试成套工具，各类勾爪类型的测试夹，各类测试探针，各类接线柱，插头插座，同轴线缆装配和同轴电缆连接器等。

Firstly, the research tests the stationary of each variable by adopting the Unit Root Test and all variables shows I(1) sequence. Secondly, it tests the stability of each variable by adopting Perron (1989) structure transformation Unit Root Test. The test result is same as the ADF test, which does not consider the structure transformation.

首先以单根检定法来检定各项变数是否为定态，结果显示变数皆为I(1)序列，接著以Perron(1989)结构转变的单根检定，检测各变数的平稳性，检定结果与不考虑结构转变的ADF检定结果相同。

As far as I know there are three kinds fo such tests commonly exist - the Dall Null test which uses a single plano-convex lens, an auto-collimating test uses a flat as big as the mirror under test and Offner test using two plano convex lens.

据我所知现时一般存有3种此类测试，其一是达耳零位测试采用单一只平凸透镜，再有是自准直测试采用一块平镜大小一如被测试的反射镜，及 Offner 测试采用2只平凸透镜。

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。