Average cost flow assumption assigns the same average cost to each unit. 平均费用流的假设,指派相同的平均成本,以每单位。
The FIFO method of determining inventory cost may be adopted by any business regardless of whether or not the physical flow of merchandise actually corresponds to this assumption of selling the oldest units in stocks first. 任何企业都可以采用先进先出法计算存货的成本,不论该企业的商品实际流转是否与最先出售库存早期商品的假设相一致。
Multi-objective optimization for flow shop scheduling with the group technology assumption removed 无成组技术条件下流水车间调度的多目标优化
For orifice compensated aerostatic bearings, entrance effect leads differences between actual pressure distributions and traditional laminar flow assumption in gas film of the bearings. 小孔节流空气静压轴承中,由于进口效应现象的存在导致轴承气膜内实际压力分布不再符合传统的层流假设。
Simplification of the mass balance equation of water storage formation and its coupling with the flow equation under vertical elasticity assumption 储水层质量守恒方程的简化及在垂向弹性形变假定下与水流方程的耦合
In consideration of the character of indoor particulate flow as well as on basis of necessary assumption and simplification, the motion of suspended particulate matter can be described by diffusion-based models, i.e., pseudo-fluid approximation of particulate phase. 针对室内颗粒流动的特征,在必要的假设和简化的基础上,对悬浮颗粒运动基本上可采用扩散方程模型进行描述,即将颗粒相看成是拟流体进行处理。
All the formulae applied to make such a calculation were derived from the energy equation of gas steady flow through a certain assumption and simplification, in which the kinetic energy, part of the total energy consumption, was neglected. 进行这项计算的实用公式都是从气体稳定流动能量方程入手,经过一定的假设、简化推导而得的,其中的一项假设即是将总能耗之一的动能项忽略不计。
Taking the overall financial position into account, the investing activities of companies with worse position tend to support free cash flow agency cost assumption, while those of companies with better position tend to support external financing constraint assumption; 按综合财务状况分类,状况较差企业的投资行为较为支持自由现金流量代理成本假说,状况良好企业的投资行为较为支持外部融资约束假说;
And it is also found that falsehood would be induced in calculating flow resistance in shallow rivers based on the assumption that the slope of energy in the ice-cover area is equal to that in the bed area. 分析也表明,阻力计算时若假定冰盖区和床面区的能坡相等,对宽浅式河道也将导出谬误。
However, it was reported that the flow and heat transfer behavior in a microchannel deviates from predictions based on the conventional assumption generally accepted in macro scale channels. 然而,据有关报道,微通道内的流动及传热性能均偏离了适用于宏观通道的常规结论。
The finite volume method is used to solve the NS equations to get the basic flow field. The solution of the eigenvalue problem is obtained by using the linear stability theory under the assumption of local parallel flows. 采用有限体积法数值求解NS方程组得到基本流场,应用当地局部平行流假设和线性稳定性理论求解了扰动波参数的特征值问题。
Taking the equity structure into account, the investing activities of non-state-owed companies tend to support external financing constraint assumption, while those of the absolute-state-owed companies tend to support free cash flow agency cost assumption. 按股权结构分类,非国有企业的投资行为较为支持外部融资约束假说,国有绝对控股企业中代理问题较为严重。
The confluence between viscous debris flow and river flow considered as density flow is based on the assumption that the main influence of converging into water flow is the transform of riverbed. 在探讨入汇机理的基础上,认为粘性泥石流入汇对主河的影响主要体现在河床地形的改变。
With the presence of a complex fracture network pattern and the fluid flow restricted mainly to the fractures, the porous media assumption does not adequately describe the flow behavior in the fractured rocks. 若流体渗流主要受裂隙的控制,对于一定尺寸的裂隙岩体,多孔介质假设则较难刻划裂隙岩体的渗流特征。
The special flow structure in the CBL was introduced into the model and homogeneous turbulence assumption was made. 模式既考虑了对流边界层的特殊气流结构,并作了均匀湍流参数化的简化;
Based on Boundary Element Method ( BEM) of potential flow assumption, pressure recovery termination model and Re-Entrant Jet Model are adopted to analyse non-linearity of axisymmetric body. 紧接着,基于速度势的边界元法,采用了压力恢复闭合模型和回射流模型两种尾流闭合方式对回转体进行了非线性分析,并进行了比较。
Based on equivalent flow assumption, the formulas for determining the hydraulic thickness and permeability coefficient of the effect zones are gained. 基于流量等效原理,推导了层面水力影响厚度及其渗透系数的计算公式。
Axisymmetric cavitating flows around the cone-capped cylinder are numerically simulated with the boundary element method under potential flow assumption. 基于势流理论和边界元方法,对水下运动的回转体的空泡流进行了数值模拟.将半经验空泡封闭模型由平面流动推广至轴对称流动。
Governing equations of two fluid model for gas-liquid two-phase flow have been presented in detail. A K-ε model is also developed to predict gas-liquid two-phase flow turbulence with a basic assumption of that the shear-induced turbulence and bubble-induced turbulence may be linearly superposed. 本文详细给出了气液两相流动双流体模型下的各控制方程组和相间作用力,通过将气泡引起的紊流与剪切引起的紊流线性叠加给出了气液两相流动的紊流模型。
To study the propulsive performance of the supersonic micro Laval nozzle, the 2D and 3D models were presented to simulate the nozzle flow, which were based on the continuum assumption with no-slip boundary conditions. 为了研究微尺度超声速喷管的推进性能,采用无滑移的连续介质模型,对二维和三维微尺度拉伐尔喷管的冷态流场进行数值模拟。
The flow is solved by using the boundary integral equation method and the higher order finite element discretization on the assumption that the water is inviscid and incompressible, the flow is potential and the bubble gas obeys the isoentropic rule. 在理想不可压势流假定下,采用高阶有限元离散边界积分方程求解水流场。假定泡内气体遵循等熵关系。
The results show that neglecting to solid axial conduction parallel to the gas flow and based on the assumption of thin wall, a dynamic periodical heat transfer model of regenerator is established, and the non-dimensional quantities of the linear differential equations are processed. 研究表明,忽略沿通道轴向蓄热体导热影响,可建立薄壁蓄热体周期传热模型,并对线性偏微分方程组进行无量纲化处理。
Traditionally the calculation of friction terms in unsteady liquid pipe flow is based on the quasi-steady assumption that the unsteady friction in transients can be approximately calculated by the formulas in steady pipe flow. 目前,人们对液体管道瞬变流动过程中摩阻的处理通常采用拟稳态假设,用稳定流的摩阻损失来近似代替瞬变流的摩阻损失。
Mold Filling Process Examined Using Water as Substitute Suitability of Laminar Flow Assumption for Numerical Simulation of Mold Filling 铸型型腔充填过程的准三维水模拟实验层流假设在型腔充填过程数值模拟中的适用性
Large-Eddy Simulation of a Round Turbulent Jet under the Flow Axisymmetric Assumption 圆湍射流的轴对称大涡模拟
Considering the interact inFluent of flow and heat transfer, the author have used partial thermal equilibrium assumption to establish a mathematical model of heat transfer about the fluid in porous media, and conducted numerical calculation. 考虑流动与传热的相互作用,本文采用局部热平衡假设建立了流体在多孔介质内的传热数学模型,并对模型进行了数值计算。
Thirdly, explain the theory of discounted free cash flow method detailed, including its defect and improvement assumption. 第三章,从理论上详细的介绍了自由现金流量折现法,以及其理论及应用中存在的缺陷和改进设想,为后面的案例分析打下理论基础。
And classical Navier-Stokes equations and Fourier law with nonslip boundary condition is never suitable for this kind of gas flow and heat transfer with high Kn, because continuity assumption does not hold now. 对于这种高Kn数渗流和传热,连续性假设不成立,不能使用传统的带无滑移边界条件的Navier-Stokes方程和Fourier定律来描述。
For example, there are two problems about analytical solutions for unsteady groundwater flow in circular area with impervious boundary. One is that analytical solution under point-well assumption is wrong. The other is that analytical solution considering well diameter is approximate. 例如,现有关于圆形区域隔水边界条件下地下水非稳定流的解析解存在两大问题:一是点井假设下的解析解存在错误,二是考虑井径的解析解是近似解。
First, we establish the data items of variational optic flow computation, which can effectively calculate optic flow under six cases, such as brightness constancy assumption, brightness gradient constancy assumption and brightness divergence constancy assumption and so on. 首先建立了变分光流计算的数据项,能有效地计算光亮度不变、光亮度梯度不变、光亮度散度不变等假设前提下光流场计算的6种情形,推导了数据项设计的策略和方法。