计算

Considering gas-solid flow in annular space and BoYun Guo's hydrodynamic parameters model, For aired underbalanced drilling, combined with the minimum energy Angel law and based on the mininum gas injection scale at the key points, it is established a bottom-hole pressure model for gas-solid two phase stream; meanwhile, calculated the downhole depth of the Downhole-Deployment-Valves; and then fabricated the corresponding calculation software. For streamingly underbalanced drilling, it is fully given a step-by-step solution based on analysis from the relationship of various wellbore pressures at the course of underbalanced drilling as well as from the streaming behavior in different wellbore sections, adding consideration on multiphase stream pressure drop and Downhole-Deployment- Valve into account, it is of common application for development wells.

对于气体欠平衡钻井，考虑环空为气固两相流，参考BoYun Guo的流体力学参数计算模型，结合Angel的最小动能法标准，从满足关键点处的最小注气量入手，建立了气固两相流的井底压力计算模型，同时对套管阀的下入深度进行了计算，并利用VB语言编制了相应的计算软件；对于液体欠平衡钻井，考虑环空为多相流，在充分分析欠平衡钻井井内基本压力关系的基础上，从环空多相流压降分析入手，通过对井筒内各段的流态分析，逐段求解。

In order to provide a simple and convenient method of earthwork volume calculation in the work of terracing the land on hillside,a formula for earthwork volume calculation was developed using the methods of literature consultation and geometrical mathematic calculation.

为西南丘陵地区土地开发整理坡改梯坡式梯田土方量计算提供科学简便的计算公式和计算方法，为工程项目审查及预算审查提供坚实的依据。通过运用文献研究和几何数学方法，推导出坡改梯坡式梯田土方量的计算公式。

Toop's model and Miedema method are to be used to calculate the heat of formation of ternary compounds. A projected method is used to obtained the heat of formation of AB_(1-x)G_x. The heat of formation is negative for GaAs_(1-x)P_x and for GaAs_(1-x)N_x compounds in the all range and for GaP_(1-x)gN_x compound in the

我们分别用Pauling和Phillips经验方法及Miedema半经验方法计算[59]得到Ⅲ-Ⅴ族二元合金的生成热，比较三种方法，均只定性与实验结果吻合，但Miedema方法具有准第一原理特点，可以从组元基本特性出发来得到合金生成热的数据；我们把TOOP'S模型引入计算中，并把计算结果投影到Ⅲ族组元总浓度等于所有Ⅴ族组元总浓度的平面上，即计算AB_(1-x)C_x合金系的

In this method the initial values of perspective projective matrix; rotative matrix and translative matrix are calculated from the fundamental matrix, than these matrices are optimized based on the coordinate value of corresponding points.

该方法从基本矩阵计算初始透视投影、旋转和竖直平移变换矩阵，然后以对应点坐标为基础对这些变换矩阵进行优化计算，从而有效地避免了优化计算的局部最小值，而且不过分依赖基本矩阵的计算精度。

It is found that, the calculation results from formulas specified in GB50010-20 agree with the test results on uncracked prestressed concrete beams to great extent, and formulas specified in AC1318-99 are more suitable for calculation of those postcracked prestressed concrete beams, but formulas in both codes are not ideal for the calculation when loads near the crack ones.

结果表明，GB50010-2002规范公式的计算结果与梁未开裂时的试验结果比较吻合，ACI318-99的计算公式对开裂后的计算相对准确，但两种规范对处于开裂荷载附近的计算均不是很理想。

By performance analysis, we obtain that the dependence of the long latency operations heavily influences the parallel efficiency of instructions. Based on the analysis, we optimize the codes, cache the amount irregular computations, and compute them vectorially.

通过性能分析，我们发现粒子相互作用力计算中相互关联的浮点运算严重影响了处理器的指令级并行效率，为此我们应用计算缓存的方法，将大量不规则的浮点计算进行缓存，达到一定规模后再进行向量化计算。

Grid and Peer-to-Peer computing are two distributed resource sharing environments developing rapidly in recent yean.

网格计算(Grid—computing)和P2P计算(Peer-to-Peer Computing)是近年来分布式计算发展中出现的两种计算技术。两者都是将大规模的分布的资源有效地组织起来，供用户方便、快捷、透明的访问和共事。

For a reference GFR core design, the criticality and burnup characteristics for the single assembly model and full core model were calculated through the coupling of MCNP and ORIGEN, and the differences in the calculation precision and calculation time were compared between the fine structure model and homogenized assembly model, respectively.

本工作以一气冷快堆的设计方案为研究对象，针对单组件模型和全堆芯模型，采用MCNP耦合ORIGEN的方法，计算了有关临界、燃耗过程的几个重要物理特性，比较了采用精细化结构和组件均匀化方法在计算精度、计算时间等的差别，说明了采用组件均匀化方法进行气冷快堆全堆燃耗计算的必要性和可行性。

For a reference GFR core design,the criticality and burnup characteristics for the single assembly model and full core model were calculated through the coupling of MCNP and ORIGEN,and the differences in the calculation precision and calculation time were compared between the fine structure model and homogenized assembly model,respective...

本工作以一气冷快堆的设计方案为研究对象，针对单组件模型和全堆芯模型，采用MCNP耦合ORIGEN的方法，计算了有关临界、燃耗过程的几个重要物理特性，比较了采用精细化结构和组件均匀化方法在计算精度、计算时间等的差别，说明了采用组件均匀化方法进行气冷快堆全堆燃耗计算的必要性和可行性。

On the safe side, we should use active soil pressure and passive soil pressure to calculate the support strength before T increased. That is RA=EA-EP Among them: RA ………… holding strength EA ………… composite force of active soil pressure EP ………… composite force of passive soil pressure Immediately, flexural torque distribution of enclosure wall can be counted. Mmax is the location of shear force zero. Equivalence beam method abridges. No matter which kind of supporting structure form, the key problem lies in the establishment depth of catch point, severity of support and enclosure wall, penetration depth and pit bottom quality of soil property.

单道锚杆支护结构计算分别采用静力平衡法及等值梁法，根据试算法插入深度t值需先进行假定墙的插入深度确定后来计算支撑力，为了安全起见，可按插入深度增大前的主动与被动土压力合力计算支撑力即 RA=EA-EP 式中：RA …………支撑力 EA …………主动土压力合力 EP …………被动土压力合力随之可求围护墙的弯矩分布，Mmax为剪力为零点的位置，等值梁法的计算略述。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。