查询词典 dynamic allocation

This paper introduces the research and implementation of all-purpose high-speed test adapter for ADC. The main contents includes two methods about how to testing the static parameters and dynamic parameters for ADC. The servo loop method is proposed to static parameters, by using the test principle of high-precision voltage source, high-precision voltage meter and digital comparator. To dynamic parameters, the DDS chip of AD9851 is used to generate sine waves with high signal to noise ratio, then the high-s...

servo loop ； FFT ；本文介绍了关于ADC高速通用测试适配器的研究和实现，主要介绍了测试ADC芯片静态参数和动态参数两种方法，针对静态参数，提出了用伺服环的方法，采用高精度电压源，高精度电压表和数字比较器的测试原理；针对动态参数，提出了用DDS芯片AD9851产生高信噪比的正弦波，采用高速采样模块采集数据，最后用FFT算法对采集的数据进行处理。

And by using the initial conditions as well as the end conditions, the dynamic problem is then transferred to a second kind Volterra integral equation about the function of the axial strain with respect to time which can also be solved successfully by the interpolation method. For piezoelectric and pyroelectric hollow cylinders, by following the solving procedure for elastic hollow cylinder and by using the electric boundary conditions, the dynamic problems are transferred to two Volterra integral equations about two functions of time, one is axial strain and the other is related to electric displacement, which can also be solved efficiently and quickly by employing interpolation method. The elastodynamic solutions of hollow spheres, which are made of elastic, piezoelectric and pyroelectric materials, respectively, for spherically symmetric problems are also obtained.

对于弹性空心圆柱，通过引入一特定函数将非齐次边界条件化为齐次边界条件，然后利用正交展开技术，导出关于时间函数的方程，再结合初始条件和端部边界条件，将原问题转化为关于一个时间函数的第二类Volterra积分方程，运用插值法可给出此积分方程的解；对于压电和热释电空心圆柱，利用求解弹性空心圆柱相似的方法，再结合电学边界条件，原问题转化为关于两个时间函数（轴向应变和与电位移有关的函数）的第二类Volterra积分方程组，同样可用插值法来构造相应的递推公式高效地求解此积分方程组。

With the consideration of the friction between warp beam and warp layers, the frequency, the dynamic characteristics and the compensation ability of the back rest system on 1515-PJR loom to warp dynamic tension is disucssed.

并在考虑织轴绕纱层之间摩擦影响的情况下，研究了送经装置的频率特性和动态特性，讨论了1515-PJR织机后梁系统对经纱动态张力的补偿能力。

In the recent 10 years, at the three special fields of dynamic aerodynamics, although the circumferential Reynolds number gap between wind tunnel free flight and its corresponding real flight is as high as one or two magnitudes, wind tunnel free flight experiment results succeed in predicting or reproducing the dynamic aerodynamic characteristics in the three special fields, which appear in the real flight phase producing severe effects on flight security and flight performance.

近10余年来，在3个动态气动专题领域内，地面风洞自由飞实验与对应的天空飞行器的绕流雷诺数虽然相差1～2个量级，但风洞自由飞实验结果多次预测或再现了天空飞行器出现的对飞行安全、飞行性能产生严重影响、其它地面风洞实验方法难以预测或再现的这3个专题领域内的动态气动特性，这至少为3个专题领域内天地动态气动相关中的雷诺数影响，提供了一个新的理解。

The dynamic mechanical properties of composites based on recycle polystyrene and wood flour were studied by dynamic mechanical thermal analysis system.

摘 要：本文分析了50Hz频率下木粉/再生聚苯乙烯复合材料的动态机械性质。

By soluting the dynamic mathematical model, the transfer functions were obtained. The influence laws of heat storage and working medium property to dynamic characteristics were obtained.

在对锅炉蒸发受热面简化假定的基础上，建立了亚临界压力下的动态数学模型，对该数学模型进行求解，推导出了蒸发受热面的传递函数。

The weapon has 2 degrees of rotation ( it pitches and yaws, ie. Aim anywhere in the hemisphere around the hardpoint ): you can use 1 dynamic base for the "yawing" part, and 1 dynamic barrel/gun for the "pitching" part, attached to the yawing base.

武器拥有两个旋转轴（它可以俯仰和自旋，例如：炮口可以指向挂载点一侧半球内的任意方向）：你可以用1个动态的基座来完成"自旋"部分，和1个动态的炮管/枪管完成"俯仰"部分，附加在自旋基座上。

On this basis,a set of dynamic signal analysis system is designed by using high cost-effective digital signal processor TMS320F2812DSP.The system can acquisite dynamic signal and process data in the frequency domain,then directly display the value of the signal component of frequency and power,distortion on the LCD.

利用TI公司高性价比的数字信号处理TMS320F2812设计了一种便携式态信号分析仪，该系统信号分析仪可采集动态信号，并处理数据的频域，可直接在LCD上显示信号各分量频率值、功率值、失真度等。

This paper presents a Tableau decision algorithm for the dynamic description logic D-ALCO.D-ALCO is a combination of the description logic ALCO,the dynamic logic,and an action theory based on the possible models approach.

以D-ALCO的构建过程为基础，将ALCO的Tableau算法、命题动态逻辑的Tableau算法以及对可能模型途径的处理有机地结合起来，给出了D-ALCO的Tableau判定算法，证明了算法的可终止性、可靠性和完备性。

Alco called Asymmetrical balance, Dynamic balance, Dynamic balance.

亦称不对称平衡，动态平衡。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。