纯物质

  • 网络Substance;Pure substance;Single
纯物质纯物质
  1. 洛克一般讨论的是纯物质。

    Locke talked about pure substance in general .

  2. 纯物质特性参数的计算

    Characteristic Parameters ' Calculation for pure Substance

  3. 利用Matlab计算纯物质蒸气压

    Calculation of vapor pressure for pure substances with MATLAB

  4. 在纯物质常沸点汽化热的剩余函数预测法基础上,结合Watson方程,推导出预测纯物质任一温度下汽化热的新方程,由最基本物性数据Tb、Tc和P(?)

    On the basis of residual function of heat of vaporization , a new equation combined with Watson 's equation was presented for heat of vaporization calculations for pure substances .

  5. 然而,西方社会仍在盲目追逐后更高的GDP这一纯物质的完全与自然和悠闲生活无关的指标。

    Yet the West still chases slavishly after ever-higher gross domestic product , a purely material measure that takes no account of the blessings of nature or leisure .

  6. 用修正的Rackett方程计算纯物质和烃类二元混合物饱和液体密度

    Prediction of Saturated Liquid Density of Pure Compounds and Binary Hydrocarbons Mixtures

  7. 方法有机溶剂浸提,柱层析分离纯化,利用UV,IR,MS,1H-NMR,13C-NMR和二维核磁共振等实验确定纯物质的化学结构,并根据旋光值确定化合物的立体化学。

    Methods Using organic solvent for crude extraction and column chromatography for further isolation . Chemical structures were identified on the basis of spectrum data of ~ ( 1 ) H-NMR , ~ ( 13 ) C-NMR , IR , UV and MS.

  8. 这个常数是纯物质的蒸汽压,乘以液相的组分,Raoult定律。

    Which is the vapor pressure of the pure material times the , and the composition of the liquid phase , Raoult 's law .

  9. 提出了一种改进的Flory模型,将Flory溶液模型的相互作用参数x(12)表达成体系组成的函数,并改进了纯物质参数的确定方法。

    The interaction parameter x_12 in Flory solution model is expressed as a function of solution compositions so as a modified Flory model is developed , and the method for determining the parameters of pure substances is also modified .

  10. 用吸附色谱法、凝胶过滤色谱法等方法对该活性成分进行分离和纯化,并用高效液相色谱法、薄层色谱法和化学方法对其纯度进行检验,得到2个纯物质HG1和HG2。

    The bioactive substances were purified through adsorption chromatography , gel chromatography and so on . The purity tests of HG-1 and HG-2 by TLC , analytical HPLC and chemical methods proved that they were both single substance .

  11. 引用修正的Rackett方程和Chueh-Prausnitz混合规则计算纯物质和二元烃类混合物饱和液体密度。

    The modified Rackett equation and Chueh-Prausnitz mixing rule are used to calculate the saturated liquid density of pure compounds and binary mixtures .

  12. 用分子热力学方法建立了纯物质汽液平衡的推广vanderwaals模型,并据此得到了一个计算正常沸点下液体蒸发焓的方程.它只含有一个与分子大小有关的参数。

    An augmented van der Waals model of VLE of the pure compounds has been established by the molecular thermodynamic method , and an equation of calculating the enthalpy of vaporization at the normal boiling point is obtained from this model , which contains only a molecular size-dependent parameter .

  13. 应用八十年代提出的新R-K状态方程式,改进纯物质常沸点汽化热的剩余函数预测法,推导出纯物质常沸点汽化热的新计算方程式。

    A new equation for calculating heat of vaporization of pure compounds at normal boiling points is derived with the residual function method improved by the new RK EOS which was proposed in 1980s .

  14. 利用比容平移修正后的Peng-Robinson状态方程和密度梯度理论建立了简单流体和烷烃的表面张力的理论模型,并提出了适合于这一类纯物质的作用因子通用关联式。

    The surface tension of simple fluids and alkanes have been studied by the gradient theory and the volumetric translation Peng-Robinson ( VTPR ) EOS , and an accurate expression for the influence parameters were developed for these kinds of materials .

  15. 本文筛选了可能作为替代制冷剂的氟化醚类(HFEs)纯物质和混合物,然后对这些工质的制冷循环性能进行了热力学分析。

    In this paper , some pure and mixture substances of fluorinated ethers ( HFEs ) were put forward to be able to replace chlorofluorocarbon ( CFC ) refrigerants , and the performances of refrigeration cycle of those new substances were theoretical analyzed .

  16. 本文报道了高分辨率、高灵敏度的顺序扫描型电感耦合等离子体原子发射光谱仪(ICPS-8100)在高纯物质分析中的应用。对元素分析线进行优化选择;

    A Sequential inductively coupled plasma atomic emission spectrometer ( ICPS-8100 made by Shimadzu ) with high resolution and sensitivity was used to determine directly trace elements (μ g / g level ), such as As , Sn , Sb and Pb in high-purity metal chromium .

  17. 由改进的方阱位能模型径向分布函数的解析式,结合统计热力学的方法关联纯物质的表面张力。

    A modified square well analytical radial distribution function was derived .

  18. 构形因子法推算纯物质的临界压缩因子

    Configuration factor correlation for estimating critical compressibility factor of pure substances

  19. 非正常沸点下纯物质汽化潜热的计算

    Calculation of Vaporization Heat of Pure Substances at Non-Normal Boiling Point

  20. 估算纯物质蒸发焓的新方法

    A new method for predicting the enthalpys of vaporization of pure compounds

  21. 相场法模拟流动下纯物质多晶粒枝晶形貌研究

    Dendritic Growth Simulation of Polycrystalline for Pure Material by Phase Field Method

  22. 研究了相场方法在纯物质凝固生长过程中计算模拟的应用。

    Research of simulation dendritic growth of xenon by phase field method ;

  23. 纯物质汽化热的人工神经网络算法

    Calculation for Heat of Vaporization of Pure Compounds by Artificial Neural Network

  24. 液体纯物质的粘度及扩散系数与蒸发潜热间的关系

    Correlations of Viscosity and Diffusivity for Pure Liquids with Heat of Vaporization

  25. 膜蒸馏-结晶工艺是一种新的回收纯物质方法,尤其从废水中分离出晶体。

    Membrane distillation-crystallization is a new method of recovering materials especially from wastewater .

  26. 用基团贡献法预测纯物质蒸气压

    Estimating vapor pressure by the method of group contribution

  27. 剩余函数法预测纯物质汽化热

    Prediction of Heat of Vaporization for Pure Substances with Method of Residual Function

  28. 纯物质汽化热的预测

    Prediction of the Heat of Vaporization for Pure Compounds

  29. 这是纯物质的相图。

    OK , this is for the pure stuff .

  30. 纯物质偏心因子新推算式

    A New Acentric-Factor Formula for a pure Compound