微分

We discuss a class of second order self-adjoint matrix differential systems with damping term and self-adjoint Hamiltonian matrix differential systems, etc.

在第五、六章中，考虑一类线性泛函g和一类对s偏导数不一定非正的Hk型函数，分别研究了自伴的带有阻尼项的二阶矩阵微分系统和自共轭的Hamilton矩阵微分系统。

Then by using the generalized Gronwall inequalities, the oscillation for second-order self-adjoint differential equations is discussed and new oscillation criteria are obtained.

第一章为综述，简要回顾常微分方程、泛函微分方程及时标上的动态方程等的振动理论的发展与现状，同时介绍了本文的主要工作。

An improved tracking differentiator is proposed based on the study of typical tracking differentiators.

在对典型跟踪微分器深入研究的基础上，提出一种改进的非线性跟踪微分器。

Integrators and differentiators work EXACTLY the same as their mathematical counterparts.

积分器和微分器的工作原理和数学中的积分和微分是一致的。

They are differentiated twice with approximate ideal differentiators to obtain the corrected accelerogram.

本文通过对数字强震仪系统使用的力平衡加速度计的仪器响应误差进行分析，提出了一个校正仪器响应失真的处理方法，即对未校正记录做低通滤波后运用近似理想微分器做两次微分得到校正加速度记录。

The initiative shoot condition of the ballistic equation of rocket gun is still general,but on the warship,the ship mov- ing will make the solution of the equation great deviation.

现有的火箭炮弹道微分方程组是建立在静止的发射条件上，舰载火箭炮采用该方程组进行解算时会产生较大的解算误差，为了减小因舰艇运动引起的误差，文中建立了解舰载火箭炮弹道微分方程组对舰艇基本运动和摇摆进行修正的模型。

With the aid of the solution matrix of Lax equation satisfied by the eigenfunctions, elliptic variables are introduced suitably, which give a direct relation between the soliton equation and the resulting compatible ordinary differential equations.

文中发展了一个分离技术，由此可将连续的和离散的2+1维孤子方程分解为相容的常微分方程或相容的常微分方程和离散流的演化。

It was presented that a dynamic retrieving differential equation mode of two-variable hydrologic time series considering one main cycle.

3提出一种考虑一个主周期的水文二元时间序列动力反演微分方程模式，并应用双向差分法和最小二乘法推导微分方程参数，给出求解公式。

Adopting Lorentz-invariant coupling model of neutron-antineutron and neutral meson strong interaction, we have physical analysis and accurate calculation on the neutron and antineutron to two neutral meson renormalization chain diagram propagator, and acquire the theoretical result; furthermore, after application of it to the physical process analysis and cross-section evaluation in this reaction , the differential cross-section of which is given. Moreover, through the comparison among this calculation and those scenarios: neutron-antineutron tree diagram and renormalization chain diagram propagator contribution, some important information about radiative correction was obtained.

采用中子-反中子与中性介子强相互作用的Lorentz不变耦合模型，对中子反中子重整化链图传播子作了有关物理分析及其严格解析计算，获得精确理论计算结果；进而将此结果用于中子反中子反应生成两个中性介子反应的物理过程分析及其截面的计算研究中，并精确计算出中子反中子重整化链图传播下中子反中子反应反应微分截面；最后还将此计算结果与中子反中子树图和重整化单圈链图传播下该反应微分截面作了对比分析，获得了有相关辐射修正的重要信息。

In the second method, the nonlinear tracking differentiator is applied to producing the differential signal of the pitch angle, which is used to calculate the pitch angular rate.

给出了两种重构方法，一种是通过建立等效的线性模型，设计线性状态观测器重构状态信号，另一种是使用非线性跟踪微分器方法，通过跟踪俯仰角的微分信号来计算俯仰速率信号。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。