查询词典 hilbert cube

A three solutions theorem of nonlinear operator equation in Hilbert space was given by Sun Jing-xian in 1983,in this paper,the theorem was expanded to general Banach space by using gradient method ,and some conditions was weakened,such as the local Lipschitz condition s transformation to the bounded character of F and so on.

依据H ilbert空间中非线性算子方程的一个三解定理，本文运用最速下降法将这个定理推广到了一般的Banach空间，并且减弱了原定理的某些条件，如将局部Lipschitz条件减弱为F的有界性等

In the past, the high frequency resonance technique is usually applied in the envelope detection for a vibration signal with amplitude modulation. When applying the Hilbert transform in the high frequency resonance technique for the envelope detection of vibration signals, the computing burden is very high. On the other hand, when applying the linear least squares analysis method, the computing burden is lower. When applying the envelope detection in the lowest vibration mode, an accelerometer with the low-pass filtering cutoff frequency at 4kHz should be choose.

在过去的研究方法中，振动讯号之振幅调变通常以高频解调分析法应用於包络讯号侦测，而高频解调方法应用希尔伯特转换的包络分析，所需要的计算量是非常的高，若以线性最小平方分析法应用於高频解调分析法中，则所需要的计算量较小，如果以最低模态来估测包络讯号时，可以适当的选取加速规来代替低通滤波器，而加速规的截止频带必须在4kHz左右。

Principles of Mathematical Logic represents one of Hilbert's important contributions to that debate.

数学逻辑原则代表了该次辩论的希尔伯特的重要贡献之一。

In Chapter 2,I consider a queuing system in which there are two exponential servers, each having his own queue, and arriving customers will join the two queues separately, and analyze the two-dimensional Markov process representing the numbers of jobs in the two stations. A functional equation for the generating function of the stationary distribution of this two-dimensional process is derived and solved through the theory of Riemann-Hilbert boundary value problems. In Chapter 3, I consider the system with two parallel queues, in which arrivals join the shorter queue.I describe the problem of coupling and show that the generating function Fcan be continued as a meromorphic function to the whole complex plane.

全文包括三大部分：第一章介绍了基本的背景、研究进展和文章主要采用的方法；第二章研究的是有两个服务员共享的简单的排队方式的模型，即每个服务员有各自的队列，两队队长互不相关，分析了代表两个队长的二维马尔柯夫过程，推导出了二维过程的平稳分布的母函数的方程，并运用Riemann—Hilbert边值问题理论解出了母函数的表达式；第三章研究的是JSQ-PS模型(the joining the shortest queue model with processor sharing)，模型是组合了加入最短队模型和处理器共享模型而成的有用排队模型。

The concept burst upon the scene of twentieth-century philosophy as a result of the work of the German mathematician David Hilbert, who in 1905 published a proposal for proof of the consistency of mathematics, creating the field of metamathematics.

20世纪哲学是这一概念诞生的背景。

Fractal geometries of Hilbert and H curves can be implemented to miniaturize the antenna, too.

研究表明Hilbert和H分形天线具有降低天线结构尺寸的优点，相对于一般阵子天线，结构尺寸大为降低。

Hilbert-Huang Transformation is a new signal processing approach, which can be used to identify the modal frequency, damping ratio and vibration mode of the structure incorporated with NExT.

Hilbert-Huang变换是一种新的信号处理方法，它与NExT法相结合可以识别结构的模态频率、阻尼比和振型。

Hump! Don't ask Hilbert the Mouse, or Russell the Rabbit, or Zorn the Muskrat, for they don't know how … They claim that the Lord is their Thesis Adviser and has neatly filed away all tinite and infinite collections—into file drawers.

哼，不要去问希尔伯特老鼠、罗素兔子还有左恩麝鼠，因为它们不知道……它们声称上帝是它们的论文顾问，并且说上帝已经精细地整理好了所有有限和无限集合的文档，把这些文档放进了抽屉里。

Meanwhile, the Hilbert transform mean mode decomposition was proposed to improve the computation speed and noise immunity.

针对局域波分解方法中的一些不足，提出了一种新的方法－希尔伯特变换均值模式分解法，提高了方法的计算速度和抗噪能力。

This article gives an analysis,simulation and comparison of the performance of square demodulation ,Hilbert transform,wavelet transform,and nonlinear operator methods in extracting envelope spectrum of ship noise,and comes to the conclusion that their performanes are close.

分析并仿真比较了检波滤波法、希尔伯特变换法、小波变换法与非线性算子法等在提取舰船噪声包络谱中的性能，得出了它们性能接近的结论。

Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.

马哈拉施特拉邦内政部高级官员Pradeep Indulkar称，有101人在冲突中丧生，287人受伤。

Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.

Frei说，该公司80%在家办公的人员都拥有本科学位，而在公司电话中心工作的人中只有30%拥有本科学位。