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This algorithm is proved to converge to a unique least-squares and minimum-norm solution vector when the control parameters satisfy the given constraint conditions.

然后,提出了将步长、罚因子等过程控制参数统一的迭代-递推形式的辨识算法,证明了算法在给定的控制参数约束下收敛于唯一的最小二乘、最小范数解向量。

In the process of calculation, the stator terminal voltage was taken as restriction condition, and the starting current is iterated to obtain the starting current and starting torque under the rated voltage.

在计算过程中,以定子端电压为约束条件,对定子起动电流进行了迭代计算,得到了额定电压下的起动电流和起动转矩。

In the process of numerical computation of electromagnetic field, primary ending voltage is taken as constraint condition, primary starting current is iterated, and stating current and starting torque at rated voltage is obtained.

在电磁场的数值计算过程中,以初级端电压为约束条件,对初级起动电流进行了迭代计算,得到了额定电压下的起动电流和起动转矩,最后把正弦电磁场计算结果与实测结果进行了对比,表明直线感应电动机起动性能的计算结果满足工程实际的需要。

In this paper, according to the theory of electromagnetic fields, firstly, electromagnetic field of large and medium asynchronous motor is calculated from the angle of coupled fields, secondly, the end voltage of the stator is taken as constraint condition and starting current in stator is iterated in the numeral computation process, finally starting current and starting torque at rated voltage are gained, and by comparing calculation results with test results ,starting performance of large and medium asynchronous motor meet the demand of project practice.

本文根据电磁场理论,从耦合场的弱耦合角度首先计算了大中型异步电动机的电磁场,在电磁场的数值计算过程中,以定子端电压为约束条件,对定子起动电流进行了迭代计算,得到了额定电压下的起动电流和起动转矩,并把正弦时变场计算结果与实测结果进行对比,表明大中型异步电动机的起动性能的计算结果满足工程实际的需要。

Fractal is a subdiscipline of nonlinear area, researches on fractal characteristics of the deoxyribonucleic acid sequence may reveal some secret hidden in the DNA sequence during the process of biological evolution. Chaos Game Representation was proposed as a scale-independent representation for genomic sequences by Jeffrey in 1990. This technique, based on iteration function system, represents the word distribution statistics in DNA sequence as the fractal graphic. Therefore, we can get the distribution of sequence through analysis of fractal theory.

分形是非线性领域的一门分支学科,关于脱氧核糖核酸序列分形特征的研究,可以揭示生物在进化过程中隐藏在DNA序列中的某些秘密。1990年Jeffrey提出了基因组序列的与尺度无关的混沌游戏表示法,这是基于迭代函数系统的一种方法,它将DNA序列中一定长度字的分布规律表现为图形的分形特征,进而通过分形分析就可获取序列的分布规律,从而也成为DNA序列分析的一种统计方法。

A theory analysis of the iterative turbo decoding process has been given in this paper.

论文主要是进行Turbo码迭代译码过程的理论研究。

The heating mechanism of chromosphere from coronal soft X-ray radiation, was introduced self-consistently for first time; in numerical technique, we developed an elaborative method to resolve and track the transition region as well as chromospheric condensation.

在计算方法上,提出了增加辐射损失项循环来迭代求解动力学方程组的总体计算方法;并详细阐述了精确分辨和跟踪过渡区的网格调整方法,包括插入、消去和跟踪色球压缩区的方法,并就整个计算实现过程进行了讨论。

The coaction of grouting and drainage curtains will lead to biggish gradient variation of seepage flow nearby, and slow down the convergence rate of unconfined seepage flow iteration, or even cause it divergent.

防渗帷幕和排水孔幕的共同作用可能会引起附近渗流场较大的梯度变化,并导致无压渗流迭代计算过程收敛速度慢甚至不收敛。

Objective:This paper proposes an iterative noncentral procedure for the sample size determination in log rank test and compares it with the LachinFoulkes procedure. Methods: Samplings are performed with a prescribed size.

本研究首先按临床数据实际分析过程说明设计参数赋值依据和生存研究所需样本量测定原则,然后提出迭代非中心法,即借助重复抽样估计其非中心参数,测定所需样本量,并同基于指数分布的方法进行比较。

In order to investigate the basic heat transfer characteristics of the platelet regeneratively cooled thrust chamber, the second chapter focussed on the developed flow and heat transfer in the long straight regenerative cooling channels with rectangular sections.

为了解层板再生冷却推力室在传热上的基本特征,第二章重点研究流动和热充分发展的矩形截面长、直再生冷却通道内的传热问题,建立了层板再生冷却推力室二维流固耦合传热过程的数理模型,采用通用形式控制方程描述冷却剂紊流传热和通道材料内导热的共轭传热问题,从而避免了流-固区域之间的反复迭代,大大缩短了计算时间。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。