利用特征线方法数值模拟了双圆弧和抛物线两种特型喷管中的三维非对称定常等熵的超音速流场。
Numerical simulation of three-dimensional, steady, isentropic, non-symmetrical flow in rocket nozzles is completed using a bicharacteristic method.
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。
It follows that every reversible adiabatic process is one of constant entropy, and may be described as isentropic.
本文用等熵位涡(IPV)图分析了1983年1月3—8日东亚寒潮过程的动力学特征。
The dynamical characteristics of a cold wave in southeastern Asia during 3-8 January1983 were analysed with isentropic potential vorticity (IPV) charts.
用等熵位涡(IPV)图分析了1983年1月8—10日侵入青藏高原的一次较强冷空气过程。
A strong cold wave entering Qinghai-Xizang Plateau during 8-10 January of 1983 is analys. Ed by the isentropic potential vorticity (IPV) maps.
本工作为进一步开展等熵加载和驱动技术研究奠定了基本的实验技术和理论建模基础。
To the next research of isentropic load and driven flyer plates, our work give the foundation of basic experiment technique and theory model.
本文利用一条等熵参考线和两个等焓偏导数建立了火箭发动机性能参数的外推公式。
In this paper, the extrapolation formulas of rocket engine performance parameters are established utilizing one isentropic reference line and two partial derivatives for fixed enthalpy.
就阻抗递变的多层组合飞片对靶样品的冲击压缩过程进行了一维平面应变数值模拟计算，其中，等熵线采用逐步递推法计算。
This article describe the numerical simulation for shock compression which is produced by layered flyers impacting target, in which the isentropic curve is calculated by recurrence method.
等熵加载是目前研究材料状态方程的一种重要手段。
Nowdays, isentropic loading is one of the important tools to be used in research for materials EOS.
沿等熵面高脊区的下滑急流与水汽图像暗区相当一致。
The jet sliding along the ridge on isentropic surface is consistent with the dark zone in WV image.
本文重点探讨了膨胀机出口带液量对其等熵效率的影响。
The influence of liquid quantity carried out from the exit of expansion machine upon its isentropic efficiency is emphatically discussed in this paper.
医学图像融合的效果评价方法有很多，如信息熵、互信息、均方值、峰值信噪比和平均梯度等。
There are many kinds of image fusion methods, such as information entropy, mutual information, mean square error, peak signal to noise ratio and mean grads.
探索了磁场准等熵驱动飞片发射的实验技术，在FP - 1装置上成功实现了多种尺寸飞片的驱动实验，并利用VISAR系统获得了飞片的速度历史曲线。
Experiments were performed to investigate the quasi-isentropic magnetically driven flyer plates with several sizes on FP-1, and their velocity histories were recorded by VISAR.
在利用等熵线计算冲击温度时，从冲击绝热线出发推导了一个半解析的等熵方程。
In the calculation of shock temperature by using isentropic curve, an isentropic equation which is consistent with the Hugoniot curve is developed.
在分析喷管内气体的流动时，假设工作气体是完全的理想气体，气体的流动是等熵位流。
An assumption is made that the exhaust gas is perfectly ideal, and the gas flow within the nozzle is isentropic.
用相应的梅雨期环流平均图及等熵面平均图，展示了各梅雨型之间的主要差异。
The main difference among the types is displayed by use of the corresponding mean circulation and isentropic charts for the season.
采用数值模拟技术详细地研究了不同掠高的某蒸汽轮机末级前掠叶片表面等熵马赫数的分布。
The numerical simulation technique is used to investigating the isentropic Mach number distribution on the different swept height blade surfaces of a turbine last stage blades.
讨论了爆热、爆轰产物的等熵方程和物态方程，试澄清这方面的一些疑点。
In this paper, it attempts to clarify some doubtful points existed currently which are related to detonation heat, isentropic equation and equation of state of detonation product.
运用因子分析法、熵值法、综合序数法等评价方法，进行实证分析和研究，取得了一定的有实际运用价值的结论。
She has made empirical analysis and study using factor analytical method, entropy value method and synthesis ordinal number method, and reached the conclusion of practical worthiness.
在最大熵等统计机器学习模型当中，特征函数的选择可以说是对系统整体性能影响最大的部分。
The feature functions were reckoned as the most important part of the maximum entropy model which could affact the last result of system.
的热容，熵，升华焓等热力学函数，并与实验值进行了比较。
The standard heat capacity, entropy, sublimation enthalpy of graphite.
引入了基于该矩阵的细度参数、粗度参数、二阶距参数、熵参数及不均匀性等特征参数来描述泡沫的结构。
Parameters, based on the NGLDM, such as fineness, coarseness, entropy, second moment, and non uniformity parameter were introduced to describe the texture of froth.
因此，用适当匹配的多层组合飞片对靶样品产生准等熵压缩是可行的，提出的准等熵压缩的数值模拟方法是可靠的。
Therefore, the method to obtain quasi-isentropic compression by layered flyers impacting target and the method of numerical simulation for quasi-isentropic compression are reliable.
总体过程如下：首先以粗糙集决策表一致性水平、区间平均信息熵、离散化程度等因素作为离散化结果的评价标准。
The overall course is as follows: Firstly, take consistency level of decision, average information entropy and degree of discretization as evaluation criteria of the result of discretization.
熵是信息论的重要概念，应用熵的概念，可简捷地解决从25个外形相同珠子中找出其中一个假珠子及急病诊断等类问题。
Some methods via entropy are found, by which the problems such as eliscrimination of artificial pearls from 25 ones with same apearence and diagnosises of actute diseases are easily solved.
构成了此体系的非平衡统计算符，进而导出其粒子数、动量、能量、力和熵等一系列宏观方程。
The nonequilibrium statistical operator (NSO) of the system is constructed and a series of macroscopic equations for its particle number, momentum, energy, force aad entropy etc. are derived.
讨论了管内流体雷诺数(无污垢时)和无因次热流密度等参数对无因次熵产相对增加数的影响。
Also discussed is the effect of parameters such as in tube fluid Reynolds number (in the absence of fouling) and dimensionless heat flux density on the above mentioned increment number.
与当前典型的基于感觉熵的频域瞬态检测方法相比，具有时间分辨率高、准确和算法简单等优点。
When compared with the typical perceptual entropy detecting on frequency domain, it has some advantages, such as higher time resolution, more accuracy and simple algorithm.
对于决策表，人们从不同的角度出发，提出了正域约简、熵约简、分布约简、分配约简、近似约简等约简理论与方法。
As to decision table, positive domain reduction, entropy reduction, distributive reduction, distribution reduction, approximate reduction and so on are introduced from different views.
对于决策表，人们从不同的角度出发，提出了正域约简、熵约简、分布约简、分配约简、近似约简等约简理论与方法。
As to decision table, positive domain reduction, entropy reduction, distributive reduction, distribution reduction, approximate reduction and so on are introduced from different views.
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