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The existence and uniqueness of almost periodic solutions for a fully nonlinear first-order almost periodic system 完全非线性一阶概周期系统概周期解的存在唯一性
The Instable Almost Periodic Solutions to a Class of Higher Dimensional Almost Periodic Systems 一类高维概周期系统的不稳定概周期解
A point or region of virtually zero amplitude in a periodic system. 波节在一周期体系中实为零振幅的点或区域
The computation of lyapunov exponent with different parameters shows that there were double periodic, almost periodic and chaotic motion behavior in this system. 通过对系统李雅普诺夫指数的计算，发现了该系统存在倍周期、概周期运动以及混沌运动现象。
Existence of almost periodic solutions for a class of pendular equations. 一类摆动方程概周期解的存在性。
For a dynamic system, if there is a (quasi) weakly almost periodic point but not an almost periodic point, then there exists a subsystem which is chaotic in the sense of revised Devaney. 摘要得到一个动力系统如果存在非几乎周期的（拟）弱几乎周期点，则存在子系统在修改的狄万内意义下是混沌的。
Such includes periodic system servicing, anticipated system modification or add-on, and temporary component hookups. 这些地方包括需要定期系统维修，预计需要系统改造或加装，以及需要临时性部件连接，等等。
We get the critical temperature and the critical exponents both in periodic system and quasiperiodic system. 3. 二，得到了均匀系统和准周期系统的临界温度和一些临界指数；
By using properties of scalar almost periodic function, properties of uniform almost periodic matrix function are discussed. 摘要利用纯量概周期函数性质讨论了一致概周期矩阵函数的一些性质。
Since H. Bohr proposed the theory of almost periodic function, this field has been developed greatly. Bohr提出概周期函数理论以来;这一领域得到了很大的发展;其发展过程的一个主要特点就是其函数范围不断扩大.
The periodic system of inventory accounting requires that acquisition of merchandise be recorded by debits to a purchases account. 定期盘存制要求企业购入商品时,借记购货账户。
The authors investigate the Fourier series of Weyl almost periodic functions by the new definition and prove the Parseval's equality. 通过新形式的定义研究范尔概周期函数的傅立叶级数和帕塞瓦尔等式。
A nonlinear Volterra integrodifferential equation is investigated. The existence and uniqueness of almost periodic solutions for the equation is obtained. 研究非线性Volterra方程概周期解,得到方程存在唯一概周期解的一组充分条件。
Using the method of topological degree, we prove the existences of positive almost periodic solutions for a generalizaed infectious diseases model equation. 摘要给出推广的传染病方程正概周期解存在的一个定理，并用拓扑度方法给出简洁的证明。
Another definition of Weyl almost periodic functions is introduced by using trigonometric polynomial. it is proven that the equivalence of these two definitions. 摘要利用三角多项式给出范尔概周期函数新形式的定义，并证明两个定义方式的等价性。
In periodic systems, the time interval between two corresponding points on successive cycles. 周期系统中，在相继两循环中两个对应点之间的时间间隔。参阅frequency。
The possibilities of LCAO methods for chemical bonding analysis in periodic systems are discussed. 在定期系统里的化学压焊分析的LCAO 方法的可能性被讨论。
We present existence theorem for pseudo almost periodic solutions with piecewise constant argument by means of unique decomposite character and for pseudo almost periodic sequence solutions of relevent difference equations. 摘要利用伪概周期函数唯一分解性质，研究相关差分方程的伪概周期序列解，并以此为工具得出一类带逐段常变量微分方程伪概周期解的存在唯一性。
The results of Berger and Chen are extended. And the variational method is proved to be available to solve the existence and uniqueness of the almost periodic solutions of nonlinear Duffing equations with damping. 推广了Berger和Chen的结果,证明了经典的变分方法对于解决带阻尼的非线性Duffing方程有界解的存在唯一性问题是同样适用的。
The present paper is concerned with the module containment of almost periodic solution for a nonautonomous, singularly perturbed differential equations with piecewise constant argument. 提示：该介绍信息是由机器自动翻译完成，我们不保证机器翻译的正确度，也不对由于内容的误译或者客户对它的错误使用所引起的任何直接的,或间接的可能的问题负责。