A fluid in equilibrium cannot sustain shear forces, and it can sustain only very small forces of tension. 平衡于状态中的流体,经受不住切力,只能经受非常小的张力。
Vapor pressure equation represents the relation of vapor liquid equilibrium of pure fluid, and is also the key factor for calculation of vapor liquid equilibrium of the mixture. 蒸汽压方程代表了纯物质的汽液平衡关系,也是混合物汽液平衡关键的信息。
Fluid phase equilibrium data is essential for the design of supercritical fluid extraction column involving the measurement of phase diagrams for ternary mixtures. 流体相平衡数据是设计超临界流体萃取塔的关键。本文给出了涉及三元混合物相图计量的萃取塔的可行性研究和应用的一些例子。
Taking the fluid velocity as changing parameter, the stability of steady-state solution near the equilibrium points is analyzed by using Theory of Stability. 以流体流速作为变化参数,运用稳定性理论分析了平衡点附近定常解的稳定性问题;
This paper presents a new set of visual high-pressure fluid test system, discusses some methods to measure hydrate phase equilibrium and analyzes the advantage and disadvantage of graphical method and visual method. 文章介绍了一套新的可视化高压流体测试系统,讨论了气体水合物相平衡测定的几种方法,分析了图形法和观察法的优缺点。
P-T conditions and fluid nature in every metamorphic stage are found after study of fluid inclusions and calculating of thermodynamic equilibrium. 通过平衡热力学计算和流体包裹体研究获得了各变质阶段P-T条件和流体性质。
Based on the revised free volume models for fluid viscosity and thermal conductivity and the statistical thermodynamic theory for equilibrium properties, an equation which correlates liquid viscosity with thermal conductivity by virtue of heat of vaporization has been proposed. 将流体粘度和导热系数的自由体积模型与平衡性质的统计力学理论相结合,导出用液体蒸发潜热表示的关联液体粘度与导热系数的基本方程。
Relations between internal inertial gravity waves and heterogeneous stratified atmosphere in the geophysical fluid of nonstatic equilibrium 非静力平衡下地球流体惯性重力内波与非均匀大气层结的关系
Supercritical fluid chromatography ( SFC) was used to study the adsorption equilibrium and mass transfer properties for eicosapentaenoic acid ( EPA) and docosahexaenoic acid ( DHA) on C 18 by means of impulse response technique. 用超临界流体色谱(SFC)法研究了EPA和DHA在C18上的吸附和传质性能。
The equation of state of perturbed-chain statistical associating fluid theory ( PC-SAFT) was applied to predict thermodynamic properties and phase equilibrium data in ethylene slurry polymerization system through Polymers Plus software. 通过再参数化含链扰动统计缔合流体理论(Perturbed-ChainStatisticalAssociatingFluidTheory,PC-SAFT)状态方程,建立了乙烯淤浆聚合体系物性的计算方法。
The solubility of essential oil from Angelica sinensis ( Oliv.) Diels in supercritical CO2 fluid ( SC-CO2) was determined by the apparatus with a binary phase equilibrium measurement on high-pressure at the first time. 首次利用汽液交替循环高压相平衡装置测定了当归油在超临界CO2流体(SC-CO2)中的溶解度,并内插得到了测定范围内溶解度随压力和温度变化的规律。
This paper studied the variation of pH value of ore-forming fluid with temperatures under the condition of equilibrium among minerals crystallized at different ore-forming stages in the Huize lead-zinc ore deposit. 以会泽铅锌矿床为例,根据不同成矿阶段矿物相之间的平衡条件,讨论了成矿流体pH值随温度变化的情况。
Under normal condition, the pressure applied to any point of spacer fluid bag from the oil should be equal to the pressure of the spacer fluid in accordance with the principle of level equilibrium, thus the oil level can be measured. 根据液位平衡原理,当工况稳定时,隔离液袋上任一点受到被测介质部分的压力与隔离液部分的压力相平衡,代入参数值,即得到被测液液位。
Theoretical basis of thermodynamics on fluid phase balance is studied in this paper, and estimating rule of thermoelectrical equilibrium with interfacial phenomena is analyzed. Adsorption theoretical model is evaluated on the base of essential theory of adsorption. 本文研究了流体相平衡的热力学理论基础,并分析了存在界面现象时的热力学判据,研究了吸附的基本理论,选择了空穴溶液理论模型计算凝析气在多孔介质表面的吸附;
Application of MH equation based on g! E model to binary fluid phase equilibrium 基于G~E模型的MH方程在二元流体相平衡中的应用
A State Equation for Fluid Phase Equilibrium Calculation 一个用于流体相平衡计算的状态方程
Mantle fluid is a mixture of gases and volatiles at equilibrium with its host mantle ambience and it is mainly composed of carbon, hydrogen, oxygen, nitrogen and sulphur ( CHONS). 地幔流体是与地幔环境处于平衡的气体和挥发分。其主要化学组分为碳、氢、氧、氮、硫(CHONS)。
Fluid rock exchange is controlled by surface kinetics. When exchange rate is faster than fluid flow, equilibrium in oxygen isotope fractionation between fluid and rock is achieved, otherwise the equilibrium will not be attained. 流体-岩石交换受表面动力学控制,当交换速率快于流体流动时,可认为流体和岩石达到了氧同位素分馏平衡,反之则没有达到平衡。
The velocities and nondimensional temperatures keep changing and fully developed flows can never be reached unless the fluid and tube wall are under thermal equilibrium condition. 且由于流体强变物性特点,只要流体和壁面存在温差,速度及无量纲温度分布就不断变化,充分发展流不可能达到。
Protein has the important nutriology function for organism. And protein plays an important role in not only the decision of the body fluid colloid osmotic pressure but also the maintenance of acid-alkali equilibrium. 蛋白质对机体具有重要的营养学功能,且对决定体液胶体渗透压和维持酸碱平衡有重要作用。
The calculated oxygen isotope composition of the aqueous fluid in equilibrium with the authigenic carbonate possesses a bi model distribution pattern. 其碳氧同位素变化范围远远高于沉积碳酸盐,并且有不同的众数计算表明与自生碳酸盐平衡的水相氧同位素组成具双峰正态分布。
Mineralization itself means the content of equilibrium between the mineralizing fluid system in the universal geological-mineralizing field and its subsystem during the dynamic process far from equilibrium system. By means of M. 成矿作用的本质是成矿流体子系统在统一地质成矿场中与其它子系统在远离平衡系统的动态过程中所能达到平衡的程度。
Supercritical fluid extraction, phase equilibrium of supercritical systems, supercritical reaction have been discussed. 对超临界流体的萃取、超临界体系相平衡、超临界化学反应和超临界流体技术等研究及应用等领域,以及超临界流体技术的最新研究开发作综述。
Temperature effect on SOLID-SUPERCRITICAL fluid phase equilibrium and its molecular basis 固体-超临界流体相平衡的温度效应及其分子基础
The results show that control factors of remaining oil distribution including deposition model, fault, microstructure, fluid property, well pattern perfection and no equilibrium of reserves put to use. 结果表明,剩余油的控制因素包括沉积模式、断层、微构造、原油性质、井网完善性及储量动用不均衡性等。
The distribution of fluid residual pressure of Mesozoic strata in Ordos basin is studied based on the equilibrium depth method. 利用平衡深度法研究了鄂尔多斯盆地中生代地层的流体剩余压力分布特征。
The primary sulfides are enriched in heavy sulfur and the values of δ 34S are concentrated in the range of 13 ‰ to 17 ‰. δ 34S pyrite> δ 34S sphalerite> δ 34S galena indicates that sulfur isotopes in ore-forming fluid have reached equilibrium. 矿床原生矿体中的硫化物均富集重硫,其δ34S值集中于13‰~17‰之间,且有δ34S黄铁矿>δ34S闪锌矿>δ34S方铅矿,表明成矿流体的硫已达到平衡;
Mainly to examine how temperature and flow rate of the internal and external fluid affected the equilibrium composition and the export parameters. 考察了管内外流体温度、流量等因素对体系平衡组成及出口参数的影响,探讨了甲烷转化率、氢气产量等的变化情况,为获得最佳转化率奠定了基础。
So, the main accomplished work of this article is as follows: 1. Incorporating the PR state equation and providing the fluid two phase equilibrium model solution method has provided the phase equilibrium theoretical foundation for the Yaha block gas-condensate well production performance analysis. 2. 为此,本文完成的主要工作如下:1.结合PR状态方程,给出了气液两相平衡模型求解方法,为牙哈区块凝析气井生产动态分析提供了相平衡理论基础。
Aquaporins ( AQPs) widely distribute on the cell membrane of different tissues and involve in maintaining of fluid equilibrium in the body by regulating secretion, transport and absorption of water. 水通道蛋白(aquaporins,AQPs)广泛分布在不同组织的细胞膜上,参与水的分泌、吸收和细胞内外的水平衡调节,维持组织细胞的体液内环境。