有限函数

So cooperative controlling of driving force of wheel is a key of trafficability on tough lunar terrain.Based on SQP algorithm,driving force of wheel was optimized. Optimization is based on restriction of moving safely and smoothly.The aim of optimization is to minimize power consume of motors and varying range of driving force.

本文基于序列二次规划算法优化摇杆-转向架式月球车车轮系统驱动力输出，建立保证月球车在月壤平稳安全通过的力学约束方程，以车轮驱动功率和驱动力变化最小为目标函数优化车轮驱动力输出，使月球车平稳前进的同时车轮驱动电机功率消耗最小，这对能源有限的月球车来说是很有意义的。

Methods For different body aerodynamic roll angles, proper wind-tunnel test schemes were selected and trigonometric series were used for aerodynamic interpolation.

按照不同的气动滚转角，进行合理有限的吹风，然后以三角周期函数进行插值。

The results of numerical experiments show that the method has the ability to filter the sample noise from limited number of background error member, to estimate the true background error correlation functions.

试验结果表明：基于球面小波的背景误差协方差模拟方法能够克服由有限背景误差样本引入的取样噪声，有效地估计出真实的背景误差相关函数。

Topics covered include: finite automata and regular languages, context-free languages, Turing machines, partial recursive functions, Church's Thesis, undecidability, reducibility and completeness, time complexity and NP-completeness, probabilistic computation, and interactive proof systems.

课程项目包含：有限状态机与正规语言，情境无关语言，Turing机，部分递回函数，Church理论，不可判定性，可简化性与完整性，时间复杂度与NP-完整性，或然率计算，与交互验证系统。译注：Turing machine 一般译作"图灵机"或"图林机"，本课程依据专有名词保留原则，一律译为Turing机。

As a limited domain is concerned, since the boundary condition limits the uniqueness of the solution of stream function, velocity potential and the partition of wind field, it is important to reduce or eliminate the effect of boundary condition uncertainty.

所以减小或消除边界的不确定对结果的影响是有限区域流函数和速度势计算及风场分解最重要的问题。

After a detailed discussion of the variation theorem for upper bound calculation of eigenvalues, many standard procedures for determining lower bounds to eigenvalues are presented with chemical applications in mind.

本文将介绍无元素葛勒金法，此无元素法为利用变动最小二乘法所求的近似函数引入葛勒金弱式推导。可克服有限元素在工程上的限制。

Each function takes zero or more arguments and returns a single result.

每个函数接受有限个参数并返回单一结果。

The limited direction basis function of DWT has made it impossible to describe high-dimensional signals such as images very well. Compared with this demerit, the second-generation Bandelet transform is a novel multi-scale geometric analysis method, which can adaptively trace the geometrical regular surfaces.

有限的方向基函数导致DWT无法很好表述图像这种高维信号问题，而第二代Bandelet变换作为一种新兴的多尺度几何分析方法，能自适应地跟踪图像的几何正则方向。

In this project, we have deduced the joint inversion model of geodetic data, seismic data and geological data considering about their weight ratio; presented Bayes-iterative search inversion algorithm which improved on the traditional Bayes algorithm and strengthen the stability of inversion solutions; enriched and developed geodetic joint inversion theory and method of tectonic stress field; joint with geodetic, seismic, geological and geophysical data, we have inverted the temporal and spatial variation characteristics of crustal deformation of active tectonic blocks in North China and the present-day cruatal movement and strain-stress field by FEM, DDA and bi-cubic spline function fit method; especial for the crustal deformation result in some typical areas, we have presented geodynamical interpretation and done some seismic dangerous estimations.

大地测量联合反演构造应力场属于大地测量与地球动力学和地震学的交叉研究领域，主要内容是研究用大地测量地壳运动监测数据定量研究地壳运动和变形的动力学问题及分析预测地震，本项目推导了兼顾权比确定的大地测量、地震和地质三类数据的联合反演模型；提出贝叶斯-轮回搜索反演算法，改进传统的贝叶斯方法，改善反演解的稳定性；丰富、发展了大地测量反演构造应力场理论及方法；联合大地测量、地震、地质、地球物理数据采用有限单元法、块体不连续变形分析法和双三次样条函数拟合方法反演分析了华北地区活动地块运动时空变化特征以及中国大陆现今地壳运动与应变-应力场，对典型地区地表形变结果进行地球动力学解释并进行地震危险性估计。

To further study how the individual learning behavior and memory size influence the cooperators, three heterogonous networks are established.

为进一步研究个体的学习行为和记忆长度如何影响群体的合作率，构建了三种不同类型的网络，采用基于代理计算实验方法，将网络的节点看作有限理性的个体，并构造了个体的适应函数和个体学习和策略的演化方式，研究系统的合作行为。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。