查询词典 entropy

Based on maximum entropy two-stage optimization design theory, maximum entropy two-stage optimization design system including truss, beam, frame structures is founded in this thesis.

本文从两相优化的理论出发，研究了基于最大熵准则的桁架、梁和框架结构最小材耗问题，系统地建立了包括桁架、梁、框架结构在内的各主要土木建筑基于最大熵的结构两相优化设计理论构架体系。

The results show that the number of the squeezed atomic dipoles is decided by the coherence of the atom, the direction of the quantum information entropy squeezing is decided by the phases of the field and the atom, and the quantum information entropy squeezing is a precision tool for the squeezing of the atom, especially when the atom is in the eigenstates of the dipole operators.

结果表明：原子偶极矩分量出现信息熵压缩的数目依赖于原子的分布角；信息熵压缩的方向由原子和场的位相决定；量子信息熵是原子压缩的精密量度工具，尤其适合于原子处在偶极矩算符的本征态时压缩情况的描述。

By using quantum statistics,this paper obtains the calculation formula of entropy of phonons and initial results,and points out that the entropy of phonons plays an important role in the associated reaction of two kinds of anion structural groups in silicate melts.

熔体阴离子结构团缔合过程中声子熵的研究何安明李秉新石焕文（西安地质学院，西安710054）关键词熔体阴离子结构团缔合声子熵近年来，中外学者已经开始重视对岩浆熔体的物理过程和机制（如利用喇曼光谱直接测定硅酸盐熔浆的结构等）的研究工作，并取得了重要进展。

In this paper we prove that the global existence theorems of the solutions to Cauchy problem for a class of quasilinear parapolic systems, by using of the entropy-entropy flux .

本文通过引进熵-熵流对，证明了一类拟线性抛物方程组Cauchy问题解的整体存在性定理。

2 The Carnot cycle and the Carnot Principles ; 5.3 Entropy and the increase of entropy principle

5.2 卡诺循环及卡诺定理； 5.3 熵与熵增原理

The key to feature extraction is to select the optimal feature combination from all the features. In this study, the optimal color feature combination,{/G,(R+4G+B)/6, H variance, S variance}, is selected using genetic neural network at first. Then the main texture features including the mean, variance, energy and entropy of the cooccurrence matrix, the secondary texture features including the maximum frequency number, absolute uniform, inertia and importance of the co-occurrence matrix are extracted.

在此基础上，提出适合多阈值和小目标图像分割的免疫遗传图像分割方法，该方法借鉴了生物免疫系统自调节、抗原识别和记忆功能，并结合了遗传算法对图像进行自适应区域的阈值分割，改善了遗传算法优化复杂问题时存在收敛速度慢和易陷于局部最优的不足，克服了传统阈值分割方法对目标大小的限制，是一种新型的有效的图像分割方法。

The more the absolute value of entropy is, the more the structure of system is out of order.

从熵定律角度来研究城市发展，可以帮助我们建立一种新的城市发展观。

At a temperature of absolute zero, the entropy of uniform condensed systems is exactly zero.

在温度为绝对零度，熵的统一浓缩系统正是为零。

Models of element synthesis during the supernova explosions predict that the abundance ratios of actinides with respect to other stable elements heavier than iron are very sensitive to the environment of the explosion, such as the entropy and the ratios of protons, neutrons and electrons.

模型元素的合成，在超新星爆炸预言的丰度比锕对于其他稳定更重的元素，比铁很敏感，对环境造成的爆炸，如熵和比例的质子，中子和电子。

It follows that every reversible adiabatic process is one of constant entropy, and may be described as isentropic.

可见可逆绝热过程都是熵不变的过程，可以把这种过程叫做等熵过程。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。