查询词典 conditional entropy

Combining the experimental results and theoretical analysis, the following work has been accomplished.(1) Reasons of the decrease of interelectrode capacitance and the increase of discharge gap caused by the powder suspended in dielectric fluid are explained. And the mechanism that surface quality of workpiece improved by powder-mixed EDM is analyzed from this viewpoint.(2) The variation regularity of the percentage of silicon on the machined surface of workpiece has been summarized according to the experiment results when silicon powder was added into the working fluid. The entropy is introduced to explain the reasons for this variation regularity by thermodynamics.(3) The dimensional accuracy is greatly influenced by the overcut resulting from discharge gap and electrode wear in practice application. Empirical formulas for the overcut in EDM and powder-mixed EDM are established based on the experimental results using the ternary linear regressive method in this paper.(4) The influence of main factors on the machined surface characteristics has been evaluated based on the orthogonal experimental design method.

通过一系列普通电火花加工与混粉电火花加工的对比实验，运用工艺实验和理论分析相结合的方法，重点做了以下工作：(1)探讨了粉末颗粒导致极间电容减小、放电间隙增大的原因，并从这个角度解释了混粉电火花加工可以改善工件表面质量的机理；(2)以混合硅粉的电火花加工为例，实验得出峰值电流和脉冲宽度对加工表面层成分中硅元素含量的影响规律，并引入熵的概念从热力学的角度对硅元素含量变化的原因寻找了理论依据；(3)在实际加工中，由于粉末的加入使放电间隙变大，这使得混粉电火花加工的尺寸精度难以控制，本文利用三元线性回归的方法，在实验数据的基础上，建立了两种电火花加工过切量的计算公式；(4)将正交试验法应用于混粉电火花加工实验研究，并通过对实验指标极差的直观分析，得出各电参数对加工指标影响的敏感程度。

For instance, the Kolmogorov entropy,〓, and the intermittency index showed strong correlation with the local solids fraction.

间歇指数和Kolmogorov熵与局部颗粒含率具有明确的关联。

For instance, the Kolmogorov entropy, K ml, and the intermittency index showed strong correlation with the local solids fraction.

间歇指数和 Kolmogorov 熵与局部颗粒含率具有明确的关联。

Since the Maximum Entropy Model could integrate various correlative and irrelative probability knowledge,it could deal with many problem well.

由于最大熵模型可以综合观察到的各种相关或不相关的概率知识，对许多问题的处理都可以达到较好的结果。

Boltzmann's microscopic formula for entropy is introduced and used to explain irreversibility.

该讲座的重点是熵的概念。给出具体的例子来计算不同的进程数熵变。

Because of its unnerving irreversibility, entropy has been called the arrow of time

由于其令人心衰力竭的不可逆转性，熵一直被人们称做时间之矢。

Furthermore, if the entropy of the flow remains as a constant, we can have the isentropic Euler system, and if the flow is assumed to be irrotational, we can have the potential flow equation.

例如假设流体状态的变化与时间无关，只与空间状态有关，那么我们可以得到定常的欧拉方程组；如果再假设流体的熵保持为常数，那么我们进一步得到等熵的欧拉方程组；如果再假设流体的速度场满足无旋条件，我们可以得到所谓的位势流方程组。

Gilliam's choice of locations often recalls the beautiful entropy he regularly tapped into earlier in his career, from the power stations featured in Brazil and Twelve Monkeys to his vistas of historical chaos in Jabberwocky and Time Bandits .

Gilliam对场景的选择通常让人回想起在他之前作品中常常出现的美丽片段，例如《巴西》和《12猴子》里的电力站和《莫名其妙》和《时间劫匪》里历史性的混乱场面。

Temperature, Simple Thermodynamic System, Work, heat and First Law of Thermodynamics, Ideal Gases, Engines, Refrigerators, and The Second Law of Thermodynamics, Reversibility and the Kelvin Temperature Scale, Entropy, Pure Substances, Phase Transitions, Statistical Mechanics, thermal Properties of Solids, Higher-Order Phase Transitions: Critical Phenomena.

温度、简单热力学系、功、热及热力学第一定律、理想气体、热机、致冷机及热力学第二定律、可逆性与Kelvin 温标、Entropy、纯物质、相转变、统计力学、固体的热性质、高阶相转变：临界现象。

Histogram of the characteristics of the calculation, including the variance, kurtosis, entropy and so on.

详细说明：直方图特征的计算，包括方差，峰度，熵值等。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。