查询词典 flow of scalar field

Secondly, by using the connection, we prove that the minimal continuous semi-flow is the minimal continuous flow if its time-one map is open, and for any minimal continuous semi-flow, there is an invariant residual set such that the restriction to the set is a minimal continuous flow.

为此，我们首先建立了它与其时间1映射极小集的联系；然后，利用这种联系证明了：若时间1映射为开映射，则它是极小的连续流，并且一般地说来，对任意极小连续半流，存在不变的剩余集，使得它在这不变集上的限制是极小的连续流。

The present study initially put forward that the overestimation to underestimation of actual flow rates by the flow rates calculated using the hemispheric flow convergence method is due to the gradual change of isovelocity surface area in different zones of the flow convergence region, which was proven in our in vitro, animal and human studies.

7血流会聚法对二尖瓣狭窄瓣口面积、室间隔缺损分流量的确定也是一种较为准确、可靠及影响因素较少的方法。(8)本研究首次提出由于不同血流会聚区等速表面形态变化导致半球血流会聚方法计算流量从高估到低估实际流量的论点，并在离体、动物及人体研究证实。

Lastly, two-phase flow flied is studied under spinning (60n/s and 100n/s) condition, integral calculation of the two-phase flow is completed in the spinning SRM combustion chamber and nozzle, and the behavior and varieties of parameters of different diametric particles are studied in spinning internal flow flied thoroughly. The analysis of result and discussion are presented by comparison to two-phase flow flied of no-spinning case.

最后重点研究旋转情况下(25n/s和60n/s)固体火箭发动机两相流场，进行旋转固体火箭发动机燃烧室—喷管一体化两相流场数值模拟，分析了发动机内不同颗粒的运动及参数变化规律，并与不旋转两相流场对比进行结果分析和讨论。

On the basis of the flow characteristics of the multiphase flow and the principles of electromagnetic imaging well logging, how to analyze the re.constructed flow images and the methods to obtain the hydrokinetics parameters which include the hold- up of each phase after identifying the flow regimes and the velocity calculated by cross-correlation are presented.

根据油井内多相流体的流动特征和电磁流动成像测井原理，解析测量重建的流动图像，在分辨流型的基础上得到各相持率，然后通过相关计算获得各相的流动速度，从而获取流体动力学参量。

The results indicate that the flow stress of the alloy increases with increasing strain rate and decreasing deformation temperature. The flow stress increases with increasing strain until the stress reaches the peak value, then the flow stress remains constant, which indicates that dynamic recrystallization happens during deformation. The flow behaviors are described by the hyperbolic sine constitutive equation, and the activation energy calculated is 337.75 kJ/mol. The as-forged microstructure consists of refined α2/γ and γ grains, and the grains are much homogeneous than before. The B2 phase distributes uniformly at the grain boundary of α2/γ and γ grains. The B2 phase decreases with increasing deformation temperature.

结果表明：流变应力随着应变速率提高和变形温度降低而增大；在变形过程中，流变应力随着变形量增大而增大，当流变应力达到峰值后趋于平稳，表明合金在变形过程中发生了动态再结晶；热变形过程的流变应力可采用双曲正弦本构关系来描述，平均激活能为337.75 kJ/mol；从合金的组织演化过程中可以看出，合金中不均匀的原始组织得到明显均匀化，变形后的组织是由α2/γ层片晶团和γ晶粒组成的双态组织，在α2/γ层片晶团和γ晶粒的晶界交界处发现分布均匀的B2相，并且随着变形温度升高B2相数量逐渐减少。

For the ill conditioned load flow caused by the error produced in the transformation from electricity quantities to average power, direct current load flow and sensitivity vector are presented to find out the ill node, then by adjusting the load curve and generation curve in a certain principle, which is shown in detail with several flow charts, a new operation mode is reestablished to ensure the convergence of the calculation. Optimal multiplier method is proposed to work out the least square solution according to ill conditioned structural power network. The electricity quantities flow method enhances the reliability and accuracy of the calculation of the power transmission losses.

该方法可根据当前输电网中各个变电站24小时的电量记录，利用电量潮流计算对输电网总线损和各条线路损耗进行计算，使计算的精度满足降损措施分析和指标考核的要求；并且对于由负荷出力曲线转化成平均功率计算潮流时引入的误差，进而导致潮流计算不收敛的情况，采用直流潮流法，依据相角对有功功率的灵敏度向量判断出"网络异常点"，并且给出了解决此种情况的方法流程图；针对结构病态的电力系统潮流计算不收敛的情况，运用非线性约束优化方法中的最优乘子法求解潮流方程的最小二乘解，从而解决了电量潮流法计算理论线损时的收敛性问题，增强了该方法的适用性。

Innovations: The first innovation is that it is targeted on the banking and overcomes incomparability by the disparity of different industries; this thesis analyzes financial condition of listed banks based on free cash flow which overcomes the shortage of operating activity net cash flow and financial indexes based on accrual basis, creating cash flow index early-warning model, binding the result of factor analysis and discriminant analysis to evaluate comprehensively, giving warning limit and judging warning degree based on factor score and discriminant score and reducing misjudgment of single statistical method; Financial early-warning system of listed banks is constructed with cash flow index early-warning system and non-financial index BSC early-warning system.

本文的创新点：仅以银行业为研究对象，克服行业差距带来的不可比性问题；以自由现金流量为基点分析上市银行的财务状况，克服以往学者所采用的经营活动净现金流和以权责发生制为基础的财务指标的不足，创建了现金流指标预警模型；综合因子分析和判别分析两种统计方法，以因子得分和判别得分为尺度设置警限、判断警度，降低单一统计方法的误判性；融合现金流指标预警体系和非财务指标的平衡计分卡预警体系构建了上市银行财务预警体系。

Laminar flow,turbulent flow and mixing flow,are analyzed,and calculation of the flow velocity is discussed.

对比分析了误判地下水流态带来的流速计算误差，指出正确把握地下水流态是非常重要的。

This paper describes how to use Flash production of viscous flow in vivo experiments indicate friction, rotation speed Dengjiao containers of liquids in relative balance, the system and control of, weak disturbance in the transmission space - Mach cone, the disturbance wave propagation process, bypassing the wings The two-dimensional flows, ease converter and blast crisis and stagnation flow indicate parameters and critical parameters such as the concept that a number of animation, produced by sports meeting between the animation, shape meeting between animation, masking effects animation and timeline to achieve these fluid flow The animation, and by adding these buttons used to control the flow of fluid animation speed.

本文介绍了如何运用Flash制作粘性流体内摩擦实验示意、等角速旋转容器中液体的相对平衡、系统与控制体、微弱扰动在空间的传播——马赫锥、扰动波传播过程、绕过机翼的二维流动、缓变流与急变流示意以及滞止参数和临界参数的概念说明等若干动画，通过制作运动补间动画、形状补间动画、遮罩动画和时间轴特效来实现这些流体流动的动画效果，并通过添加按钮用于控制这些流体流动的动画的速度。

These features of LBM have been attracting many scientists and engineers from various of fields. To date, the applications of LBM have achieved great success in multiphase flow, porous flow, suspending particle flow, reaction flow, magnetohydrodynamics, and biomechnology, etc, and the LBM has become an important method for computer simulation of fluid dynamics.

LBM的这些特点吸引了众多领域中的学者和工程技术人员，目前LBM已经在多相流、多孔介质流、悬浮粒子流、反应流、磁流体力学和生物力学等领域取得了很大的成功，已成为流体动力学问题仿真模拟的一类重要的方法。

There were instances of beheadings and mutilation of bodies, and women were raped, the American said.

最严重的地方，街头尸横遍野，有些人的头被砍断，有些被分尸，妇女遭到强暴。

He spoke in a voice too low to be heard.

他说话的声音太低，听不见。