极小

Under such a solidification condition that the growth rate is low and the temperature gradient ahead of the solidi fication front is steep, a large amount of α-Al nuclei can be produced by peritectic reaction, during which only metastable Al〓Zr particles or very fine equilibrium Al〓Zr particles rather than larger equilibrium Al〓Zr partiles are involved.

在低的生长速度和高的界面前沿温度梯度条件下，结晶前沿Al〓Zr粒子与液态铝发生包晶反应（只涉及亚稳Al〓Zr或尺寸极小的平衡Al〓Zr，而不涉及尺寸较大的平衡Al〓Zr）产生大量α晶胚，α晶胚呈球面生长，最终形成等轴非枝晶形态。

Boltzmann machine can avoid the local solvability. The performance and running of the two algorithms are also analysed.

玻尔兹曼机可避免陷入局部极小的问题，最后对二种算法的性能和运行情况进行了分析。

In this paper, we present a new minimal spectrally arbitrary pattern by using the Nilpotent-Jacobian method.

作者在文中给出了一个新的极小谱任意符号模式。

If A is a spectrally arbitrary pattern and no proper subpattern of A is spectrally arbitrary, then A is a minimally spectrally arbitrary pattern.

如果谱任意模式A的任意一个真子模式都不是谱任意的，则称A为极小谱任意的。

A new sign pattern K with 2n nonzero entries is given. It is proved that n×n (n≥6) sign pattern K is a minimal spectrally arbitrary pattern by using the Nilpotent-Jacobian method.

本文给出了一个新的含有2n个非零元的符号模式K，运用Nilpotent-Jacobian方法证明了n阶(n≥6)符号模式K是极小谱任意模式。

Sign pattern A is minimally spectrally arbitrary if it is spectrally arbitrary but is not spectrally arbitrary if any nonzero entry of A is replaced by zero.

如果一个谱任意符号模式的任意非零元被零取代后所得到的符号模式不是谱任意，那么这个谱任意符号模式称为极小谱任意符号模式。

This paper gives group representation of the spherical rotor in three-dimension space; it searches the rotor orientation in state space that consists of outputs of 96 sensors, but traditional single-nod-search method may get into local minima.

对转子球体的三维旋转进行了群描述；针对96个传感器的输出所构成的位置空间进行搜索，而传统的单点搜索会陷入局部极小值。

That may not sound like much, but in a year with record-low numbers of sunspots and long stretches of utter spotlessness, five is significant.

大卫说：上个月，我们统计到有五组太阳黑子群，这或许听起来不算什么，但是对于在太阳活动极小年中，特别是在过去两年黑子数量创出新低，甚至有时还无黑子的情况下，出现这些数量的黑子意义却有不同。

This paper has proposed a method controlling iteration number and stability of solution according to thought of integral convergence algorithm minimizing nonlinear equations.

本文利用求非线性方程组极小化全局收敛法的思路，提出了控制迭代收敛次数、控制反演解稳定的方法。

The improved BP is fast and stable in convergence, and easy to pick out partial minimum.

改进后的BP网络具有收敛速度快、稳定、易于跳出局部极小值的特点。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。