查询词典 Z

As long as the root of the characteristic equation is within the unit circle of z-plane and the corresponding PID parameter is got, the closed loop control system is sure to be stable. Although the root of the characteristic equation can vary within the unit circle of z-plane,different value may affect the control property differently.

本文所采用的这种确定PID参数的方法，虽然可以使特征方程的根在z平面的单位圆内任意取值，但各种取值情况对变风量空调系统的控制品质的影响却不同，因此，要对各种特征方程的根的取值情况进行寻优，本文采用遗传算法对特征方程的根进行寻优，从而使控制器的参数得以优化。

The following are the expressions for the mean pressure set up at the detection plate and for the time of the signal to progagate from the radiator to the detector:这里是1个公式,省略） where Re is the real part of the expression appearing within the braces, 0 is the density of the medium, vo is the amplitude of the vibrational velocity, c is the speed of sound in the medium, d2 = I +(r/zcos 8, z is the distance between the emitting and receiving plates, B is the angle between the axis of the acoustic channel and the axis of the tube, r = vro/c, v is the flow speed of the fluid, d is the diameter of the pipe, m is the circular frequency, k is the wave number, where a is the radius of the plate (this is taken as the same for the emitting and receiving plates for simplicity, but there is no difficulty in discussing plates differ~mg in radii),,~ is the vibrational frequency of the emitting plate, and The triple sums in the expressions for N~ and N2 may be neglected if the flow speed is low, since the contributions for these become negligible.

以下的表情为代表的压力设置在检测板甲，手持骑枪和时间的信号 progagate从散热器排出到检测器(这里是1个公式、省略)。在什么地方才是真正的出现在背带，表现为0密度的吗当时的媒介的振幅振动速度、c是声音的速度中、d2 =我+ r / z，8、z是距离的发射和接收板、B之间的角度对声信道和轴轴管，r = vro / c，v的流体的流动速率公式，d 管直径的圆频率，m，凯西是波数公式* n，一个是半径的板(这是作为相同的发射和接收吗为了简单，但板板是毫无困难地讨论不同半径)、镁-，~的振动频率的发光，。总结了三倍的表达方式和N2 ~能忽略的流量速度低，因为这些变得微不足道的贡献。

Compared with CK, the contents of GA3, ABA, and Z in Citrange root were lower,while content of IAA higher. In Citrange leaves, content of GA3 and Z decreased significantly, while IAA and ABA increased significantly.

干旱胁迫下枳橙根赤霉酸(GA3)、脱落酸和玉米素含量低于对照，吲哚-3-乙酸含量高于对照，而叶片GA3和Z含量低于对照，IAA和ABA含量高于对照。

The results showed the content of GA3 and IAA first increased and then decreased,and ABA gradually increased with dehydration ratio in leaves of Citrange and Shanxiahong.But the change of Z content was different between Citrange and Shanxiahong.

结果表明：经不同程度干旱处理的枳橙叶片GA3I、AA、Z含量都呈先升后降的变化趋势，ABA含量随着失水率的增加逐渐上升；而山下红叶片GA3I、AA含量都呈先上升后下降的变化趋势，Z含量变化有些起伏，ABA含量随着失水率的增加逐渐上升。

The content of Z first increased and then decreased in Citrange,but waved in Shanxiahong.compared with CK,the contents of GA3,ABA,and Z in Citrange root were l...

干旱胁迫下枳橙根赤霉酸(GA3)、脱落酸和玉米素含量低于对照，吲哚-3-乙酸含量高于对照，而叶片GA3和Z含量低于对照，IAA和ABA含量高于对照。

But the optimizing problem of a real scalar function g where z and its conjugate z* are complex variables frequently arises in adaptive signal processing.

但是，在自适应信号处理中经常会遇到一类以Z为复自变量的标量函数g求极值或条件极值的问题。

Let F=LF be a s-closed local formation such that every minimal non-F-groups is solvable. It is proved that 1 If every cyclic subgroup of of order 4 and every minimal subgroup of G are contained in, then G is a F-group. 2 If there exists a normal subgroup N of G such that G/N∈F and every cyclic subgroup of N of order 4 is weakly c-normal in G and every element of N of prime order is contained in Z(superscript f subscript ∞), then G is a F-group.

设F=LF是一个子群闭的局部群系，满足每个极小非F-群是可解群，证明了：1如果G的任意极小子群和任意4阶循环子群都含于Z中，那么G是F-群；2如果存在G的正规子群，使得G/N∈F，且N的任一4阶循环子群在G中弱c-正规，N的任一素数阶元含于Z中，那么G是F-群。

Then we derive first-order necessary optimality conditions for optimization problems with affine variational inequality, which joint upper-level feasible region Z includes a linear inequality constraint and a linear equality constraint.

其次，我们研究Luo的带仿射变分不等式约束优化问题，其中上水平约束Z不仅含有线性不等式约束，而且含有等式约束情形时的一阶最优性条件，同时还给出了Z的切线锥的表达式。

The experiments revealed that sodium humate has little effect on the relation between the slurry neutralizing value and the pH value, and the relation between Z and pH value is almost a straight line.

实验得出添加腐殖酸钠对料浆中和度与其PH 值之间关系的影响很小，料浆中和度Z 与PH 值之间近似直线关系，用最小二乘法进行线性拟合，可得关系式： Z =

The method, which can be used to estimate the total concentration Z of the effective conducting electrons in the amorphous Ni-based alloys with high metalloid content, was proposed in this paper.

特别是，根据本文提出的高类金属含量Ni-基非晶合金总有效传导电子浓度Z值的估算方法，通过Z值的估算，能有效地预测Ni-Si-B淬态非晶合金ρ〓的大小及TCR的正负。

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。