查询词典 subscript variable

ABSTRACT The paper mainly studies the variable structure adaptive control theory for uncertain systems, and applicated the theory into the designs of bank-to-turn missile autopilots. The main contributions of the paper are as follows:(1) Under the condition that all the matched or mismatched parameter, input and disturbance uncertainties exist, a complete set of variable structure control system design and analysis method is proposed and investigated, which brecks throush the serious confines of variable structure invariance conditions theoretically and widen the application area of the VSC theory greatly.

本文着重研究了不确定性系统的变结构自适应控制理论，解决了目前变结构控制理论和自适应控制理论中存在且亟待解决的四个方面的问题，将获得的理论研究成果直接应用于倾斜转弯导弹的自动驾驶仪设计中，取得了很好的结果。

Since the variable weights are determined to simultaneously optimize the training of calibration set and the prediction of validation set, variable weighting can be seen as an optimized rescaling of the variables in certain sense and therefore is more flexible than traditional variable selection methods.

通过对传统的基于变量选择的校正模型的考察可以发现，进入校正模型的变量实际上被赋予权重1，而被模型舍弃的变量的权重实则为0。

Topological optimization system of variable density method based on finite element software;2. Interface depths inversion of potential field data with variable density model;3. According to the characteristics of the cold insulation box of Fractionating tower, it is considered that the effect of inner-filling on the construction is related with the variable density, then the relative formulation in the condition of n.

根据分馏塔保冷箱的特点，认为内填料对结构的作用与变密度有关，推导了无水平位移下的相关公式；对此结构在有水平位移下内填料的发育进行仿真分析，并将内填料的作用与结构的楼层柱的旋转角建立联系；最后根据得到的结论对分馏塔保冷箱在风与内填料作用下进行了非线性分析，得到结构的极限承载力。

According to the structure and characteristics of slip-form construction, the granulation tower project to be based on the top elevation from start to carry out the assembly of sliding-mode platform, with variable cross-section slope-walled tower, taking into account the technical characteristics of slip-form construction, the proposed construction here, the variable cross-section made the slopes with variable cross-section level (internal reinforcement unchanged), and then adjust the thickness to die or continue to slip.

根据工程结构及滑模施工特点，本造粒塔工程拟从基础顶标高处开始进行滑模操作平台的组装，塔壁斜坡变截面，考虑到滑模施工的技术特点，建议施工此处时，将斜坡变截面做成台阶变截面，然后再改模调整壁厚继续滑升。

YZB series crane and metallurgical variable voltage and frequency tree 0phase motor (hereinafter called'the motor').combing the functions ofcrane and pase asynchronous motors and strong points of the variable voltage and frequency technology have advanges of high mechanical strength and overload capacit,wide range of variable and stead operation. the basic technical data of the motor accords withIEC34-1 international standard and GB755 national standards stipulated with performances reached the 90s word level.the motor cam ne ised for a;; lomds of cranes.

YZB系列起重及冶金用变频调速三相异步电动机是将起重及冶金用三相异步电动机的特点与变频调速的优点集与一体，具有过载能力大机械强度高、调速范围宽、运行稳定的特点，其基本技术条件符合IEC34-1国际标准和GB755国家标准规定，电动机各项性能指标同国外九十年代水平相当。

This represents a fundamental mathematical limit on the best possible lossless data compression of any communication: considering a certain message as a series of realisations of a certain random variable (where the random variable can be "the next letter", or "the next word", or any other subdivision of text), the shortest number of bits necessary to transmit one message is the Shannon entropy of the corresponding random variable, multiplied by the number of realisations in the original text.

当然如果各个队夺冠的几率不等的话，那么熵则不会是5。因为如果从强队开始问问题，则不需要5个问题一般就可以得到答案。而根据哈夫曼编码的启发，我们表示这32个队，不需要平均长度为5的二进制位。从另外一个角度来看，熵作为信息量的大小也是表达能力的衡量，或者是不确定度的衡量和混乱程度的表现。为什么选择log来表示熵呢？如果X的表达能力为H，Y的表达能力为H，那么X+Y的表达能力应该是二者的乘积，所以H = H + H。

The parametric variable of above process was re-expressed by using linear interpolation method in the corresponding time period, and then, the recurrence subscript and the model value in the previous control cycle was inputted to gain the crystal model weight of the corresponding length increment in the end.

先确定晶体重量、时间和长度初始值，再以给定初始时间确定晶体生长阶段，在相应时间段用线性内插法重新表示上述过程参变量，然后引入循环下标及前一控制周期模型量，得到相应长度增量的晶体模型重量。

The hierarchy architecture of the compiling system is presented. Thinking about the way of alignment and distribution of a array, the range of a index variable in a FORALL statement, and the subscript expression of the element of a array, the communication requirements in an array assignment are classified into three categories: no communication, SHIFT communication, and other type of communication.

综合数组的分布方式、对准、FORALL语句的空间索引变量范围以及数组元素的下标表达式，将程序语句中所隐含的通信划分为3种情形，即无通信、SHIFT通信和其它通信，指出了这种划分的意义，给出相应的通信检测算法，描述了具体的实现细节；详细讨论了SHIFT通信以及利用阴影区技术对它进行的优化，对于REMAP通信的典型形式及其优化也进行了讨论。

By introducing a slack variable, the stabilization problem of discrete T-S fuzzy systems is converted into an LMI feasibility problem, and an LMI based design method for output feedback H(subscript ∞) controller is presented.

通过引入松弛变量，将离散T-S模糊系统的输出反馈镇定问题归结为求解一组线性矩阵不等式，进而给出基于LMI的输出反馈H控制器的设计方法。

Effect of several collectors on fersmite artificially synthesized under the condition of variable pH values and dosages were studied. The collecting characteristic of several representative collectors such as benzyl arsionic acid,α-styrolphhosphonic, diphosphonic acid, cyclic alkyl hydroximic acid and C(subscript 7-9) alkyl hydroximic acid was researched.

研究了几种捕收剂在不同pH值和不同用量条件下对人工合成的铌钙矿的捕收效果，考察了苄基胂酸，苯乙烯膦酸，双膦酸，环烷基异羟肟酸，C(下标 7~9)烷基异羟肟酸等几种代表性的捕收剂的捕收性能。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了