查询词典 computations

Yet tITe exist com plex computations in science and engineer-ing which human are not unable to do.

到目前为止，在科技和工程方面还存在许多大部分人无能为力的复杂计算。

XIelwet there exist com plex computations in science and engineer-ing which people are unable to make.

到目前为止在科学和工程方面还存在许多人们无能为力的复杂计算

Then, according to phase space reconstruct technique from one-dimensional and multi-dimensional time series, the quantitative criterion and rule of system chaos which combine neural network, analyses, computations and sort are conducted on EEG signals of five kinds of human consciousness activities. The author finds that statistic results of the determinism computation in time series indicate that chaos characteristic may lie in human consciousness activities, and central tendency measure is consistent with phase graph, so it may become one division way of attractor; approximate entropy of different subjects exists discrepancy; correlation dimension and Lyapunov exponent of different consciousness activities indicate that attractors of human activities are all fractional; nonlinear quantitative criterion and rule, which unites neural network, can distinguish different styles of consciousness activity in principle, and the result of sortation takes on that consciousness activity type of arithmetic is distinguished more easily than that of abstract.

采用一维与多维时间序列相空间重构技术和系统混沌的定量判据准则，结合神经网络，对五种思维作业方式的脑电信号进行了分析、计算与分类，发现确定性计算的统计结果表明人类的意识活动中可能蕴含混沌特性，中心趋向测量(Central Tendency Measure，CTM)与相图吻合较好，可作为EEG吸引子的区分方法之一；功率谱分析反映出单个受试者的各种意识形态的差异很小，但是不同意识活动谱中的活跃频段还是略有差异的；个体之间的近似熵存在差异，同种状态下近似熵大的人可能具有更好的创新性；关联维数和Lyapunov指数的计算结果表明大脑的运动落在具有分维的奇怪吸引子上；非线性量化方法与神经网络相结合，可对人脑思维活动进行较好的分类，并且从分类结果来看数理计算类思维活动较抽象类思维活动有着更好的区分度。

Afterthat,the quantum localization length was studied for to understand 1D-KBM'squantum diffusion characteristic and a critical value kb for 1D-KBM to diffusein global phase space like the classical case was obtained,which was partlyverified by further numerical computations.

在这之后，为了理解该模型的量子扩散特性，我们讨论了一维台球模型的量子局域化长度，计算出了其能够在全相空间中作半经典扩散的临界参数kb，并通过数值计算部分验证了kb的存在。

Since its low computations and evident,∑?-STAP is of great practical value in the engineering.

由于运算量小，实现简单，具有较大的工程推广应用价值。

From the experiments and succedent computations, the importance of baffle is found that it can distribute energy evenly in ALR and may be used to replace the draft tube.

通过试验和计算发现，挡板在反应器中起到均匀分布能量的作用，并可取代导流筒。

These concurrent running computations share a set of refine-grained atomic synopses which can be composed of a synopsis for a computation. Because of the refined grains, redundant information between coarse structures can be eliminated.

因此，本课题提出计算集算法复杂度来度量并发计算的复杂度，提出可以在多个计算间共享的细粒度和无信息冗余的原子概要结构。

The grid is generated by Delauney method- A nodal finite volume method is used in the now calculation. The scheme for the nux calculation is vare Leer. The adaptation for the flow computations is mesh enrichment and coarsening.

网格的生成采用Delauney方法，流场的算法为节点型有限体积法，通量的计算采用Vanleer格式，自适应采用网格的增加和删减。

By performance analysis, we obtain that the dependence of the long latency operations heavily influences the parallel efficiency of instructions. Based on the analysis, we optimize the codes, cache the amount irregular computations, and compute them vectorially.

通过性能分析，我们发现粒子相互作用力计算中相互关联的浮点运算严重影响了处理器的指令级并行效率，为此我们应用计算缓存的方法，将大量不规则的浮点计算进行缓存，达到一定规模后再进行向量化计算。

In this paper, numerical computations are made on the scattering of ultrasonic pulse waves with different centroid frequencies of 100 kHz,500 kHz and 1 MHz in fluid-filled finite-length perforation by using Finite Element Method,where three kinds of models of perforation bottom, I.E., flat bottom, stepped bottom and acuminated bottom,are assumed to simulate the practical bottoms of perforation.

乔文孝，杜光升。射孔孔眼中散射超声脉冲波的FEM模拟。测井技术，2001，25（2）：96～100 采用有限元素法，分别数值计算了平底孔道、台阶式孔道和尖劈状孔道等3种孔眼模型中不同中心频率(100 kHz、500kHz、1 MHz)的散射超声脉冲波。

Core, self psychology is psychoanalytic, but there are crucial differences in how the patient-therapist relationship is viewed.

自体心理学的核心是精神分析，但在如何看待患者-治疗师关系方面，自体心理学和精神分析有着根本性的不同。

High-performance cars brake drum production costs increase less than 10%.

高性能汽车刹车鼓的生产成本增加小于10％。