sampling value meaning in English
采样值
Examples
- To take charge of such " divergence " to a minimum , this thesis takes the listed companies of different professions as its research samples , seeks the affecting factors of the dividend policies on the companies of all professions ( taking the requirement that the sample value should be no less than 30 in the t test into account , this thesis focuses only on the factors whether to pay cash dividend and the factors affecting the cash dividend paying levers ) and then compares them with the results from the samples of the listed companies , and explores whether these are some distinctions existing and whether it is of significance to research dividend policies according to the profession that each company belongs to
为了将这种“偏离”控制在最小范围，本文分别以各个行业的上市公司为研究样本，寻找影响各个行业上市公司股利政策的因素(考虑到t检验时样本量不小于30的要求，本文只研究影响是否发放现金股利的因素和影响现金股利发放水平的因素) ，并与以全体上市公司为研究样本所得到的结果进行比较，考察是否有区别，区别是否显著，从而判断分行业研究股利政策是否有意义。本文将分以下五章。 - Firstly the electric - drive equipment is simplified in order that its circuits " working status could be obtained by computer by disposing the sampling value . secondly interface program is designed under objectarx2000 in order to drive the static circuit diagram drawed by autocad . lastly sampling value is transferred through the communication between pc and several sampling scms
有几个关键性技术问题得到了解决：首先将电传动装置进行简化，使其电路工作状态通过计算机对电压采样值的处理得到确定；其次利用二次开发工具objectarx2000开发出接口程序，实现了对autocad所绘制电传动电路图的驱动；最后通过pc机同多个采样单片机的通讯解决了对大量采样数据的传输问题。 - The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability , but also the necessary precondition of enhance power system stabilization , to remove faulty line quickly and accurately , also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple , reliable and good - selective protection manner to any variety of transmission lines , power system development needs current differential protection apply to transmission lines , moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly , the paper discusses , analyses the research and application transmission line protection in detail , compare the principle and realistic presupposition of general line pilot protections secondly , because conventional current vector differential protection are influenced easily by load current and transitional resistance , in order to at the same time quicken protection act , the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied , results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability , sensitivity and anti - saturation of current transformer in addition , synchronous current sampling methods at all terminals of line is analyzed and estimated lastly , the principle and criterion . also device design about current sampling values differential protection based on optical fiber communication , which apply to short transmission lines are concretely investigated ,
基于基尔霍夫定律的电流差动保护无论对于何种形式的输电线路都是一种简单、可靠、选择性强的保护形式，电力系统的发展使得电流差动保护应用于线路保护成为需要，而电子、通信技术的发展使得电流差动保护应用于输电线路成为可能。首先，本文对目前线路保护的研究和实际应用情况进行了讨论和分析，比较了常用线路纵联保护的实现原理和实现条件及优缺点。其次，针对常规相量电流差动保护易受正常负荷电流和故障过渡电阻影响的缺点，同时为加快差动保护的动作速度，对基于故障分量瞬时采样值电流差动保护的原理、判据、动作特性等作了讨论和分析，结果表明基于故障分量瞬时采样值电流差动保护在可靠性、灵敏度、抗电流互感器饱和方面明显优于常规相量电流差动保护，对电流差动保护各端的同步采样方法和数据通信也进行了分析和评价。