数学化

Secondly,set up mathematical model for layout optimization and made a calculation by improved genetic algorithm to achieve COG optimization in the cross section of the aircraft,meanwhile minimized layout vessel.

首先分析了飞机总体布局方案设计阶段对重心控制的特殊要求；然后建立了布局优化的数学模型并采用改进的遗传算法进行求解，实现了飞机横截面内的重心优化，并最小化了布局空间；最后在Pro/E中建立布局仿真模型，利用搜索法实现飞机纵向重心的调节。

Is specializing in the production of electronic balance, the balance plate frame, sliding rheostat, Jane resistor box, cube group, cylinder groups, hook code, such as slot code, the primary rationale, Chemistry and Biology, nature, mathematics and other teaching equipment.

是专业生产电子天平、架盘天平、滑动变阻器、简式电阻箱、立方体组，圆柱体组、钩码、槽码等各种中、小学理、化、生、自然、数学等教学仪器。

After combining LanYingXu stope, the practical problems have found in augment production stripping-ratio and lower conveying capacity of augment barren rock . The detailed study have been done to control the production stripping ratio ,the economic stripping ratio and optimal limit depth in the exploitation of middle and bottom LanYingXu stope .The economic mathematical model has been established and the application has been built in windows visional system. The optimal result can offer the referenced. Basis for mining production ,for organization and management.

并根据兰营徐统一采场后，生产面临的剥采比增大、废石运量增加、运输能力降低、露天开采深度越来越大的生产实际问题，对兰营徐采场中深部开采的生产剥采的控制、经济合理剥采比及最终开采深度进行了详细的研究，建立了经济数学模型，并编制了Windows环境下的可视化的应用程序，计算出了优化结果，为矿山生产、组织管理提供了参考依据。

Meanwhile, wire-feeding velocity of the core wire was confirmed through applying numerical calculation, which was verified with actual wire-feeding velocity used in production.

从传热传质理论出发研究喂线球化处理过程中芯线钢带在铁水中的溶解过程，充分考虑了铁水温度、含碳量和镁合金芯剂状态对钢带溶解的影响，给出相应的数学模型，采用数值计算的方法确定了芯线的喂线速度，并用生产中实际应用的喂线速度进行了验证，结果表明，计算结果与实际喂线速度基本吻合。

The result showed that the conventional and optimum design model of complex multi-evaporation had good universality. The new algorithm could be used to solve model more stably and more effectivly. The energy-saving effect was notable when all kinds of energy-saving measure were adopted and T0, Tk, tpj,Δti were optimized. In these conditions, the annual cost of optimum design decreased by 36.44% and 40.76% respectively than conventional design for the complex cross-feed and parallel-feed quadruple-effect evaporation system with solid separation. An optimum design software for multi-evaporation was developed, which had strong function, amity interface and easy maneuverability. This software may be applied to conventional and optimum design of multi-evaporation system under different conditions.

研究结果表明，复杂多效蒸发系统常规及优化设计的数学模型具有很强的通用性，求解模型的新算法稳定且高效；同时采用各种节能措施且对T_0、T_k、t_、Δti进行优化的系统节能效果最显著，对有固相析出的复杂错流、平流四效蒸发系统在上述情况下的优化设计比没有节能措施的常规设计可分别节省年总费用36.44%和40.76%；用可视化语言Visual Basic 6.0 编制的多效蒸发设计软件，功能强大、界面友好、使用方便，可用于多种流程、不同情况组合的多效蒸发系统常规及优化设计计算。

Mathematics analysis and simulation result both show that the solution mainly cut-down the requirement on the hardware and network environment, and also certainly improve the image quality. The robust of transfer network is been improved by the small-world-based unstructured P2P network.

数学建模与仿真两方面的结构都显示了解决方案有效的降低了实时视频编码过程中对提供及接受端背景工作环境的干扰，提高了实时视频的图像质量，并通过基于小世界理论的对等网构建算法实现了去中央化的传输网络，大幅提高了实时直播系统的稳定性及系统效率。

Based on the classic mechanics beam theory,the internal forces and deformation of bird-nest-patterned grid structure with circular opening are analysed using the equivalent continuum mathematical method and the slope deflection method.

基于铁摩辛柯梁理论，采用连续化数学模型和角度位移法，对鸟巢形网架结构的内力和变形进行分析，提出了简化计算方法。

Based on mathematical analysis of unsteady-state diffusion process in diaphragm diffusion cell, a steady-state flow technique for measuring effective diffusivity in gels has been developed.

一、借鉴测定液相扩散系数的膜池法，并基于对非稳态过程的数学分析，本文建立了测定凝胶中有效扩散系数的稳态流动法；设计了一种适用于支载高含水量强度较低的凝胶及固定化细胞类软性物质的成膜框架，改进了膜状软性物质厚度的测量方法，使实验易于进行，提高了重复性。

It can be seen from the model that the two valve controlled motors would be coupled with each other if the characteristic of variable displacement pump is taken into account.

探讨了由变量泵为液压源、2个阀控马达为执行元件以及惯性负载组成的液压控制系统的数学描述，并给出了其线性化模型。

The digital simulation of thedynamic processes under step load input and supply oil pressure fluctuation were carried on by MATLAB. Analysis of the dynamic characteristics was done with the changes of the supply pressure, load, structural parameters of spherical hydrostatic bearing and the effective bulk modulus of oil. The conclusions show that structural parameters of the spherical bearing and the effect bulk modulus of oil have significant influence to dynamic characteristics, but the elasticity deformation of interior supporting collet has very small influences on the output response characteristics of the suspension system. The collets deformation can be neglected on the project.

在此基础上，建立了考虑内支撑筒的弹性变形与否时悬浮系统的数学模型，同时，建立了线性化的仿真模型，利用MATLAB对阶跃负载输入和油源压力脉动输入下的系统进行动态过程的数值仿真，结果表明球面副的结构参数，油液的有效体积弹性模数对系统的响应特性有明显的影响，而内支撑筒的弹性变形对悬浮系统的响应特性的影响很小，在工程上可以忽略其弹性变形。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。