参数

Then, based on experience, statistics, statistical and mathematical methods to estimate parameters, re-use of parameter estimates to validate the model based on economic theory is correct, the last use of the revised parameter values to predict the future and planning policy.

然后，根据经验统计资料，用统计和数学方法估算参数，再利用参数估计值来验证模型所依据的经济理论是否正确，最后利用修订的参数值来预测未来和规划政策。

Then, the result from the least square method is used as initial values of elastic visco-plasticity parameter. The Kalman Filtering stochastic back analysis is carried out.

利用最小二乘目标函数对边坡岩体弹-粘塑性参数进行了确定性反分析计算，并将反演结果作为参数初始值进行了岩体参数的Kalman滤波随机反分析计算。

After the structure of the hydraulic booster is defined, in order to solute the problems of the strength and stiffness verification aimed at the parameter design and optimization of the device, the FEA software ANSYS is applied to calculate and analyze the result, the stress and displacement distribution diagram is obtained, and the output results is analyzed in detail. At the same time, in order to reach the structure destination of optimization, the dimension parameter is altered and analyzed, then all kinds of analysis result is listed and contrasted.

在液压增力装置的结构确定之后针对这种超高压液压增力装置在参数设计和优化过程中的强度和刚度校核问题，使用有限元分析软件ANSYS进行建模及计算分析，得到了输出缸各部位的应力及位移分布图，并对输出结果进行了详细地分析；同时，改变输出缸的尺寸参数并进行分析，将各种分析结果列表对比，达到了结构参数优化的目的。

The measurement errors of the single stria section contour sensor are analyzed based on the mathematic model and the relationship between the structural parameters of the sensor and the measurement errors is obtained.

在综合分析各结构参数对测量误差的影响的基础上，得出了传感器结构参数设计的依据，并给出了结构参数设计及标定的实例。

A computer-aided local transient flow property measuring system was developed using a high speed CCD camera coupled with optical fibers in order to study the Gas-liquid-solid three-phase jet loop reactors. SnO2 crystal films were orientally deposited on the alkoxysilane molecule-coated hydroxyl glass substrates so as to prepare surface-marked particles as the tracers. An image analysis system was established to identify different phases. Stroboscopic photography was utilized to extend the measure range. The developed measuring and analysis system was capable of determining accurately the local transient flow property in a G-L-S jet loop reactor. Based on the above system, local transient flow properties of gas, liquid, and solid phase were measured and studied the influences of fluid property, operation and configuration parameters on the reactor.

以气液固三相喷射环流反应器为研究对象，将高速CCD和光纤束耦合制成局部瞬态流动特性微机数据采集及图象处理系统，利用MPS硅烷分子在带有羟基的玻璃基底上的自组装引导SnO2晶态膜层在功能化表面上进行沉积，以获得表面标记的示踪粒子，解决图象处理技术与相的识别的问题，利用频闪技术拓展了测量上限，得到可以准确测定气液固三相喷射环流反应器中局部瞬态流动特性的测试系统；采用上述测试技术进行喷射环流反应器中局部气相、液相与固相瞬态流动特性的实验研究，并考察物性参数、操作参数与结构参数的影响规律。

The parameters (C1, C2, C3, C4) of the STYE fitting adsorption isotherms of indica and japonica rice are 1.44871, 0.20898, 7.32345, 0.18647, for desorption isotherms, the parameters are 2.25071, 0.24167, 8.32543, 0.19035, and for adsorption isotherms of Zhennuo variety, the parameters are 1.55680, 0.19179, 6.19676, 0.17155, respectively.

Strohman-Yoerger模型拟合籼稻、粳稻吸附等温线的参数C1、C2、C3、C4分别为1.44871、0.20898、7.32345、0.18647；拟合解吸等温线的参数C1、C2、C3、C4分别为2.25071、0.24167、8.32543、0.19035；拟合珍糯吸附等温线的参数为1.55680，0.19179，6.19676，

According to the lack of the original reliability parameter and the necessity of exploiting original reliability parameter small stylebook,a linear combination forecasting model of original reliability parameter of power systems is proposed.

针对电力系统可靠性原始参数缺乏和开发可靠性原始参数小样本的需要，提出了电力系统可靠性原始参数的线性组合预测模型。

The analytical result of this paper provides electric machine with the condition of 1/2 subharmonic resonance under the electromechanical electromagnetic forces.

建立了电机转子机电耦联的非线性数学模型，研究了由电磁力激发的参数振动非线性系统的响应曲线，揭示了各种电磁参数及机械参数对共振的影响。

The relations are built up between the height of solution elevation, the submersed depth of solution, the physical property of solution and the flow property.

研究结果揭示了浓溶液提升高度、稀溶液浸没高度等重要参数跟制冷剂蒸汽、LiBr水溶液的物性参数、流动参数之间的内在关系。

Based on the example of turbine reverse engineering , the general procedure that can be used to translate the physical object into CAD datum by Surfacer software is determined in this paper1 By going deep into the vector of point-cloud , it's parametrization can be gained by adopting the precept of accumulating chordal parametrization1 According to the principle of const ructing curve using the least square method , the high quality-curve can be gained by modifying curve's parameter1 This paper also empha2sizes on some methods about processing point-cloud , const ructing curve and const ructing surface1 And it can provide several methods to const ruct high quality2CAD model for mould machining1

此栏目为免费论文，可自行复制获取，如需要其他完整论文，可点击论文范文查找摘要本文就涡轮反求造型的实例，采用Surfacer 软件规划出由实物转化为工程CAD 资料的一般流程。在深入分析点云数据的矢量方向基础上，采用积累弦长参数化方案实现点云的参数化；根据最小二乘法曲线拟合原理，修改曲线参数获得高品质曲线；并重点论述了点云处理、曲线生成、建构曲面的方法，为模具加工提供了建构高品质CAD 模型的有效途径。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐