Abstract : the paper has undertaken an experimental investigation on theresistance coefficient of belt conveyor , base on the influence factors analysis of the main resistance of the belt conveyor , using belt conveyor resistance test bench and provided the function relations and coefficients of the resistance that varied linearly with the belt velocity according to the experimental results . the conclusion can be adopted for a belt conveyor design and dynamic analysis 文摘:在对影响带式输送机主要运行阻力的因素分析的基础上，采用带式输送机运行阻力实验台对托辊运行阻力系数进行了实验研究，根据实验结果给出了运行阻力随带速线性变化的函数关系和系数，此结果可用于带式输送机设计和动态分析。
Secondly , analytical solution is developed for one - dimensional non - homogeneous consolidation of one - layer soil and double - layered soil respectively based on the assumption that the modulus of compressibility of soil varying linearly along depth . furthermore , the semi - analytical solution for one - dimensional consolidation problem of layered non - homogeneous soft clay stratum is presented and programmed . by using the analytical and semi - analytical solutions , the one - dimensional non - homogeneous consolidation behavior of one - layer soil and that of multi - layered soil are investigated in detail 其次，分别得到了土体压缩模量随深度线性变化的单层和双层非均质地基一维固结解析解，以及渗透系数和压缩系数随深度任意变化的成层非均质地基一维固结半解析解及其计算程序，并以渗透系数和压缩系数是深度的多项式函数的非均质地基为例对单层、多层非均质地基的一维固结性状进行了详细研究。
Based on piecewise linear model , this paper proposes an estimation method that first estimates the slope of linear variant and the channel impulse response at the middle time of the current ofdm symbol using pilot sequences , and then estimates the whole channel impulse response through the estimated parameters 该算法首先利用导频序列估计出当前ofdm符号间隔内信道线性变化的斜率和中间时刻信道的冲激响应值，然后根据线性模型利用估计出的参数得到当前符号间隔内所有时刻上的信道冲激响应。
Moreover , based on the assumption that the slip velocity at the disks increases linearly with the radius up to the rim slip velocity , another pressure distribution is derived by introducing a appropriate velocity field . then these different results by the different friction conditions and technique are compared . 2 同时，在圆盘边缘处滑移速度一定，介质的滑移速度随着半径线性变化的假设下，引入合理的速度场，得到了另一种圆盘上的压力分布规律，并对不同的摩擦条件及用不同方法计算得到的结果进行了对比。
The forward kinematics simulation results showed that accelerates of the end - effector obtained from simulation was equal to that of the given . the relation between the velocity of the end - effector and simulation time was nearly linear with gentle tangent slope , and the position varied with time continuously and smoothly without any vibration during moving 正运动学仿真结果表明，末端执行器加速度与给定加速度一致，速度与时间基本呈线性变化且斜率小；位置曲线变化平滑，无振动现象，满足正常工作要求。
I carried my research on both the two computation methods and fruitful results were obtained . for the fdtd method , i solved the instability problem of the method in the non - orthogonal coordinate system . for the pwe method , i introduce the linear transform in to calculate analytically the fourier coefficients of complicated photonic crystals 对于有限时域差分方法，我解决了一个影响这种方法在斜坐标使用的稳定性问题，得到了传统的yee型差分在斜坐标里的扩充；对于平面波展开方法，我引入了线性变化求富里叶展开的系数，这种方法的好处可以很方便快捷的获得复杂光子晶体的富里叶系数。
A white point source passes through illuminating system , projecting system and projected evenly upon the filter whose wavelength is varied linearly . the colorful light through the filter is projected on a white object . modulated by the shape of the object , the deformed color pattern which has 3d depth information is captured by a pick - up camera 该系统采用白色点光源，经过照明系统、投影系统均匀照射到波长线性变化的滤光片上，从滤光片透射出的彩色光条投射到白色物体上，经过物体形状的调制，由摄像机摄取变形的颜色图案，它具有三维深度信息。
