| 1. | Considering the principle of the mechanical admittance method in pile dynamic testing is to identify the pile ' s dynamic characteristic through measuring the excitation function and the response function at the head of it
考虑到桩基动测中导纳法是通过测定施加给桩的激励函数和桩的动态响应函数来识别桩的动态特性这一原理。 |
| 2. | Abstract : graph of excitation function can be expressed in the continuous time domain by using the superposition theorem , this method can also simplify process and avoid using the separate steps . it is explained by examples in the paper
文摘:用叠加原理表示连续时域内电路中的激励函数，可以避免分时域和分步讨论的麻烦，结合实例对该方法加以论述说明 |
| 3. | For probing the isospin dependence of the medium correction of two - body cross sections , the results show that the behavior of the excitation function of stopping for medium size nuclear collisions can provide cleare r information than that for heavier systems
我们的结果还表明测量中等大小质量的系统在中能重离子碰撞中的核阻止本领激发函数比测量重的系统能提供更为确切的有关两体截面介质修正的信息。 |
| 4. | We have additionally searched for missing states in 19ne via a measurement of the thick - target lh ( 18f , p ) 18f excitation function . finally , we have indirectly studied the 19ne states of interest by measuring the energy and angular distributions of protons emitted from the 2h ( 18f , p ) 19f reaction at 6 mev / u [ koz03 ]
而在0 . 5gk左右却要比coc的大，是因为我们考虑了共振态330kev的质子和a粒子宽度的误差，而在以前的研究中，这一点被忽略了。 |
| 5. | Sound synthesis techniques for physical model are research subjetcs based on acoustics and elastic dynamics and mathematics and signal process . they start from a continuous model for the vibrating body , given by partial differential equation dependent on elastic dynamics , and take its initial and boundary conditions , as well as excitation functions into account
基于物理模型的声音合成技术是建立在声学、力学、数学和信号处理等理论基础之上的一门科学，它主要根据力学原理，通过振动偏微分方程、振动体的边界条件、振动的初始条件和激励条件来描述物体的振动物理特性。 |
| 6. | And based on these findings , we further study the dependence of nuclear stopping on system size , initial n / z , sp and the medium correction of two - body cross sections . it ' s found that the effect of initial n / z ratio and isospin sp on stopping is weak , and the excitation function of stopping depends on the form of medium correction of two - body cross sections and the equation of state of nuclear matter strongly
在此基础上我们研究了核阻止本领对系统大小、初始核n / z 、平均场中对称势以及两体散射截面介质修正等的依赖情况，研究结果表明它受初始核n / z比以及对称势的影响很弱，而受碰撞截面介质修正的同位旋依赖效应及核态方程影响明显。 |
| 7. | Based on vibration principle , the paper establishes dynamics analysis model of output shaft with elastic support , according to fourer series spread principle of periodic function , the dynamic response formula is derived by separating complex vibration force into sum of many simple harmonic excitation function of whole number times frequency relations . the result shows that response of both sides support is synchronous when load distribution non - uniform coefficient is 1
依据振动理论建立了具有弹性支撑的输出轴的动力学分析模型，根据周期函数的傅里叶级数展开原理，将复杂的激振力分解成为多个频率成整倍数关系的简谐激励函数，导出了动态响应表达式，结果表明，当载荷分配不均匀系数为1 . 0时的输出轴两端支撑同步。 |
| 8. | Mostly research findings and innovations are focused on : ( 1 ) the improved bp neural networks training algorithm was given out suit to many cpu target recognition system principally with alter step and input vector , excitation function was adjusted from theory , finally this algorithm was realized in target recognizing system based on many cpu
本文研究的主要成果和创新点有： ( 1 )提出了一种适于多cpu目标识别系统改进的bp神经网络训练算法。主要是用变步长方法及输入向量归一化方法，对所选激励函数在理论上做了调整，最后，在多cpu的目标识别的神经网络系统上实现了该算法。 |
