查询词典 V. F.

In order to realize the DSP compile of fuzzy control,an index block of fuzzy space was compiled,utilizing the input/output fuzzy space symmetry.Based on the TMS320LF2407A,a novel fuzzy algorithm program method for V/F induction motor control system has been proposed.

针对模糊控制器的DSP编程实现问题，依据模糊输入、输出空间的对称性，采用对空间分区建立索引表的方法，建立了一种基于TMS320LF2407A的新型模糊控制器的编程实现框图，并应用在交流感应电动机V/F闭环变频控制系统的速度环中。

Let G = V(G,E be a simple graph with |V| vertices and |E| edges. Let |V|= p,|E|= q, if there exists f: V →{1,2,...,p} be an injective mapping, and define an inducedfunction f":E→{1,2,...,q} by setting f"=|f-f| for all∈E. If f maps E onto {1,2,...,q}, then f is said to be a Skolem-graceful labeling of G, the graph G is said to be a Skolem-graceful graph.

对一个给定的简单图G=V(G，E，|V|和|E|分别是图G的顶点数和边数，令|V|=p，|E|=q，如果存在一个一一映射f：V→{1，2，…，p}，使得对所有边∈E，由f′=|f-f|所导出的映射函数f′：E→{1，2，…，q}是一一对应关系，则称f是图G的一个Skolem优美标号，图G被称为Skolem优美图。

Can use various methods to achieve, the automatic methods, models or choose V/f adjustment potentiometer method

可以采用各种方法实现，有自动进行的方法、选择V/f模式或调整电位器等方法

The stoichiometrical preferred-orientation AlN (100) polycrystalline films were deposited on Si (100) wafers with DE=1.0 J*cm-2, PN2=13.333 kPa, Tsub=200℃, V=650 V, f=5 Hz, and dS-T=4 cm.

实验结果表明，当DE=1.0 J*cm-2，PN2=13.333 kPa，Tsub=200℃，V=650 V，f=5 Hz，dS-T=4 cm时，高质量的AlN薄膜被成功地沉积于Si(100)基片上。

Life as a Chelsea fan before Roman Abramovich was not very rosy but at least bearable and even though we were considered as flashy, southern softies, with largely old and overpaid European players at the end of their careers looking for a pension fund; we were not hated with such vehemence and vigour.7 h% p, H- s2 V$ F, \9 t

o2 q； Z； i l6 o# f 阿布来之前的日子对于切尔西的球迷来说也不是一段甜蜜的时光，但那是可以忍受的。尽管我们被认为是来自南边浮夸的傻子，总是使用一些昂贵而过气了的欧洲球员，至少我们没有像今天这样被如此激烈的抨击。

Results showed that the diurnal variation of the maximal yield of PS11 photo- chemistry in dark-adapted leaves F(subscript v/F under light stress was a double-peak curve, and the peak values were at 8:00 and 15:00, respectively.

结果表明：光胁迫下的烤烟幼苗叶片原初光化学效率F(下标 v/F的日变化为双峰曲线，峰值分别出现在08：00和15：00左右，初始荧光(F0)上升。

Measurement of fluorescence of PS Ⅱ Reaction Center indicated F/F and F/F decreased in both alfalfas under drought stress.

3对叶绿素荧光参数的研究表明：干旱胁迫下两种紫花苜蓿PSⅡ反应中心光化学效率F(下标 v/F、PSⅡ潜在活性F

High precision of data acquisition of accelerometers signal is achieved with V/F convertors.V/F convertors convert accelerometers analog signal into impulse which is transmitted to FPGA and converted digital signal.

为保证其高精度，采用了基于电压-频率转换的数据采集单元来完成加速度计信号的数字化。V/F转换器将加速度计输出的模拟信号转换为脉冲量，FPGA采集脉冲量并转换得到自标定模型所需数字量。

AC Induction Motor Control Using the constant V/f Principle and a Natural PWM Algorithm (12 pages, revision A, updated 12/05) Induction motors can only run at their rated speed when they are connected to the main power supply. This is the reason why variable frequency drives are needed to vary the rotor speed of an induction motor.

使用V/F原理的交流电机控制和简单的PWM算法（12页，修订版A，更新时间：05年12月）交流电机在连接到电源时只能以其额定速度运转，所以要改变转速必须改变电源频率。

This p a per introduces a method of the electronic be a m flow controlling of the electron be a m welding m a chine by using V/F a nd F/V converter.

介绍把V/F及F/V转换器作为电子束焊机束流控制方式的研究，实现了焊接束流的快速控制，提高了电子束流的稳定性及可靠性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。