Changes in Step Width, Step Length and Step Frequency of the World's Top during 100 Meters 世界优秀短跑选手在100米跑中的步宽、步长、步频的变化
The walking elevator has the function of extending the step width, strengthens the flexibility and the extensibility of the walking elevator, and is convenient to use for the user. 本实用新型的手扶电梯,具有可扩展阶梯宽度功能,增强了手扶电梯的灵活性和可扩充性,方便用户使用手扶电梯。
The artificial neural network BP arithmetic method base on conjugate and next-best step width 采用共扼梯度法和准最优步长的人工神经网络BP算法
This paper applies the fuzzy theory in learning algorithm and adjusts dynamically step width and momentum factor. 针对普通BP算法学习周期长的不足,根据网络误差表面形状,文章在学习算法中引入模糊理论,动态地在线调整网络的学习步长η及动量因子α。
The step width shows Bessel function like oscillations with the ac force amplitude. 台阶宽度随交流驱动力振幅呈Bessel函数振荡。
The indexes for approximation evaluation include the step response, the rising time, Bode plot, the band width, and the H-inf norm of the error over the whole frequency range. 比较指标有单位阶跃响应的上升时间、频域波特图的频率带宽、以及传递函数误差的H-inf范数。
This paper brings out feasibility and applicability to make change drive of double step sliding gear by moving one gear width along axis under conditions of Corresponding ratio of gear. 本文阐述了双联滑移齿轮在适当传动出情况下,轴向移动一个齿轮宽度就可以进行变速的可行性及适用场合。
In order to insure that no step to lose, the torque of the output must be big than the torque of the load and there are some requirements to ensure certain width of the stepping pulse. So it's important to choose the reasonable speed-curve. 为了保证步进电动机不丢步,必须使步进电动机的输出力矩大于负载转矩,同时要保证步进脉冲一定的宽度,因此选择合理的升降速曲线十分重要。
The processing step at the edge of electron emission region is about 100 nm only and the width of self-aligned current channel of shallow. As implantation is about 3 μ m. 该器件的电子发射区域边缘的工艺台阶仅为10nm,其自对准的浅砷注入电流通道区宽度仅为3μm。
Relative step width impact on mechanical energy costs in biped walking 基于相对步宽的两足步行结构的机械能耗研究
The basic idea of changing cycloid outline shape into step width interlude is presented based upon mathematical integral principle. Cycloid outline shape interlude algorithm is derived with cutter radial reparation which solves the contradictory between interlude precision and feeding velocity. 基于数学积分原理提出了摆线廓形变步长插补的基本思想,导出带有刀具半径补偿的摆线廓形插补算法,解决了插补精度与进给速度之间的矛盾。
The self-adaptive fuzzy control program was designed to adapt to the uncertainity of targets and environment of spray, and step motors driving nozzles are controlled by DPWM ( digital pulse width modulation) mode. 为了适应喷雾对象和环境的不确定性,设计了自适应模糊控制程序,带动喷头的步进电机则采用数字脉宽调制方式(DPWM)控制。
The dynamic focusing transducer consists of six equal step and width annular elements and the center elements. 设计的动态聚焦换能器由6个不同面积等间距、等宽度的同心圆环组成。
A variable step width floating-point linearization algorithm for solving the nonlinear dynamic cascade model is hereby proposed. 提出了求解非线性级联动态机理模型的一种变步长浮点线性化数值计算方法和仿真程序。
Based on the phase sealer with the step of 0. 1 degree, the ASIC can generate the single-trigger pulse signals with the adjustable starting phase and pulse width and also has output of the pulse-width modulation ( PWM) pulse sequences according to the pulse data. 基于0.1°精度的相位控制,该ASIC既可以产生起始相角和脉冲宽度可调的单脉冲触发信号,也可以依据脉冲数据发出脉宽调制(PWM)脉冲序列。
The numerical simulation results indicated that the output signal is approximate to the ideal signal adequately only when the frequency step points N is greater than the product of bandwidth and pulse width. 数值模拟的结果表明,只有当步进点数N大于等于时宽(T)与带宽(BW)的乘积时,输出信号才是理想信号的良好近似。
It can also produce ramp, step waves and single-cycle arbitrary wave independently adjustable to both positive or negative slope and pulse width. 还能产生斜波、阶跃波和正负斜率、脉冲宽度可独立调谐的单周期任意波。
Generally, Teaching materials consider that it is necessary for change drive of double step sliding gear to move at least the width of two gears. 而一般书籍介绍,双联滑移齿轮的变速轴向至少移动二个齿宽。
Then, Multi-objective Genetic Algorithm ( MOGA) was used to search for the optimal parameters of the module and step width of motion. 在第三章中首先引入了移动机器人规划环境的矢量场模型,然后利用变权重多目标遗传算法对规划参数进行优化。
While for the Gaussian diffracted beams with w 0/ R < 1, the axial light intensity exists specifically evolutive law. The number of extrema is reduced step by step and finally disappeared with the initial Gaussian half width diminishing. 而对于w0/R<1的这一类高斯衍射光束,轴上光强存在特定的演化规律:随着初始高斯半宽度的减小,轴上光强极值个数逐步减少直至全部消失。
The effect of band with of the multimode step index fibers under γ irradiation has been investigated. It was found that band width of the optical fibers decreased as irradiation dose increased, and the decrease of band width reached to 60%. 对多模梯度折射率光纤的γ辐照带宽效应进行了实验,发现光纤带宽随着辐照剂量的增加而减小,其值达60%。
In the design of crossed strip foundation under column, the load from column shall be distributed to the strip foundation in two direction. The first step is determining the strip width. 在柱下十字交叉条形基础设计中,要将柱子传来的荷载在两个方向的条形基础上进行分配,但需首先确定条形基础的宽度。
According to change the parameter of the power cables ( power cables length, account step, impulse width, fault location). 通过改变仿真中的参数(电缆长度、剖分段数、脉冲宽度、计算步长、故障点位置),来比较得到的仿真波形,计算故障点的距离,并从仿真图形中总结出波形的规律。
It uses the varied step trie structure, according to the source address of the rule set, picks the property gradient varied step width, found a trie. 该算法使用变步长trie树结构,根据规则集合中的源地址域,选择合适的渐变步长,建立查找树。
We had a error analysis of binary optical element, mainly the influence of step width error, alignment error and etching depth error on binary optical element efficiency, and we computed binary optical element efficiency in this dissertation. 分析了二元光学制作误差,包括线宽误差、对准误差和刻蚀深度误差对衍射效率的影响,并对本课题中的二元光学元件的衍射效率进行了估算。
The effect of the dispersion characteristics of Step multimode optical fiber on different width of Gaussian pulse waveform change was studied. 研究了阶跃型石英光纤色散特性对不同脉宽高斯脉冲波形的影响。