查询词典 operator set

Second, the theory of scale space was used to design a new operator for target detection and tracking. Then, the property of scale invariant was analyzed and proved, and a tracking scheme based on the gradient LOG operator was proposed. Experimental results show that the gradient LOG operator is appropriate to describe small target in complex background, and the detection precision is in the level of sub-pixel.

然后根据尺度空间的基本理论构造了一种针对该成像模型的目标检测算子，分析并证明了该算子具有尺度不变性的优点，设计并实现了基于梯度LOG 算子的小目标跟踪方案，实验结果表明：梯度LOG 算子能够较好地跟踪复杂背景中的光团目标，定位精度可达亚像素级，且具有计算量小，抗噪声能力强等优点。

How to calculate the synthesis operator is the key problem of controlled illumination prestack depth migration. In this paper the inverse time focusing operator is synthesized based on the traveltime calculation method of finite difference approach, and with this synthesis operator the authors calculate the focusing point controlled illumination prestack depth migration using Fourier finite difference. The test results of Marmousi model show its effectiveness and the great advantage of improving computational efficiency.

进行控制照明叠前深度偏移的关键是合成算子的选择，笔者基于有限差分的走时计算方法合成了逆时聚焦算子，基于该合成算子利用傅里叶有限差分法进行了聚焦点控制照明叠前深度偏移，针对Marmousi模型的试算结果表明了该方法的有效性及其在提高计算效率方面的巨大优势。

The operator plane is installed in front of operator cab, it is devided into left and right operator plane.

操作台置于驾驶室前部，分左操作台和右操作台两部分。

In addition, we consider some conditions under which Weyl\'s and Browder\'s theorem hold for operator matrices.In chapter 4, the relationship between the reduced minimum modulus of the left multiplicative operator L_A and the reduced minimum modulus of operator A is discussed.

第三章重点研究了Banach空间上的算子满足Weyl定理和a-Weyl定理，得到了解析余亚正规算子满足a-Weyl定理；同时也讨论了上三角算子矩阵的Weyl(来源：ABC论63文网www.abclunwen.com)定理和Browder定理。

Genetic algorithm with matrix encoding, different mutate operator, crossover operator and selection operator based on order rank selection algorithm was applied to solve the problem. Genetic algorithm was approved to be convergence.

本文第三章提出了基于矩阵编码的遗传算法的最低费用的下一跳路由，解决了下一跳路由中不考虑网络负载和时延可能产生拥塞的问题，优化了网络的性能，使得网络中的带宽得到合理分配。

We can see that the operands to the multiplication operator are 10 and 20. The result of that expression and 2 are the operands to the division operator. The result of that division and 5 are the operands to the addition operator.

考虑优先级与结合性，可知该表达式先做乘法操作，其操作数为 10 和 20，然后以该操作的结果和 2 为操作数做除法操作，其结果最后与操作数 5做加法操作。

Normal cone ; Mixed monotone operator ; a-concave operator ;-a-convex operator ; Fixed point

正规锥；混合单调算子；α-凹算子；-α-凸算子；不动点

Operator completions and numerical range of operator are very active topics in operator thoery and also have important value in both theory and application.

算子补问题及算子数值域是近年来算子论中最活跃的研究课题，在算子论的研究中有着重要的理论价值和应用价值。

Operator completions and numerical range of operator are very active topics in operator thoery and also have important value in bo...

算子补问题及算子数值域是近年来算子论中最活跃的研究课题，在算子论的研究中有着重要的理论价值和应用价值。

In chapter5, the serial properties of numerical range of operator polynomial are put firstly. Secondly, the relation between numerical range of operator polynomial and n-numerical range are considered. Thirdly, in the light of matrix norm, matrix singular value, the regions and bounds of numerical range and spectrum of operator polynomial are dicussed carefully.

第五章研究了算子多项式数值域的性质、算子多项式数值域与n-次数值域的关系，特别地利用矩阵范数、矩阵的奇异值、非负矩阵的理论、友矩阵为工具，给出了算子多项式数值域及谱的范围全面刻画，并深刻地研究了算子线性束的正则性的等价条件及谱分布。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。